The data below has been prepared by ConsultResearch Inc.¹ in connection with any such SIDs. The work was done primarily by Ernie Martin². The data was extracted from approximately 1,000,000 Service Difficulty Reports furnished to the FAA since the early 1970's. Filtering was used to gather those involving only Cessna 336/337 aircraft. The data was then analyzed and only those related to structural aspects or aging effects were retained. We erred on the side of inclusion, so that a report where the decision could go either way was retained.

The retained reports for the Model 337 were then organized by area of the aircraft. Within most areas, those reports we deemed more relevant to possible SIDs appear first, and those we judged less relevant then follow; the reports appear in reverse calendar order, starting with the most recent within each group. Those reports that deal with two adjacent areas appear twice, because in the table they are shown in both areas. The figures (which come from the Illustrated Parts Catalog) were added by us for convenience, so that part numbers in the reports are quickly identified.

The retained reports for the Model 336 were so few that they appear in a separate table at the bottom, unarranged by group, newest first.

The number at the start of each row is for internal reference and is not relevant.

RELATES TO WING (including strut, but excluding aileron)
Row	Date Of Report	Operator Control Number	Segment	Date Of Occurrence	Aircraft Registration	Operation Type	Descriptive Name Of Part	Defective Location On Aircraft	Failed Part Condition	Part Total Time	Part Total Time Since Overhaul	Component Manufacturer	Component Manufacturer Model	Component Manufacturer Number	Stage Of Operation	Severity Factor	Aircraft Manufacturer	Aircraft Manufacturer Model	Aircraft Manufacturer Number	Precautionary Procedures	Nature Of Condition	zxcvbRemarkszxcvb
21	2005-02-01	CA040930002	AIRFRAME	2004-09-29		G	SKIN	LT WING	CRACKED						INSP/MAINT		CESSNA	T337G		NONE	OTHER	(CAN) DURING INSPECTION, CRACKS WERE DISCOVERED AT THE IB END OF THE LT AND RT UPPER OB WING SKINS WHERE THEY UNDERLAP THE FUEL TANK BAY COVERS. THE CRACKS ARE LOCATED IN THE RADIUS OF CUTOUT AREAS IN THE SKINS WHERE THE STINGERS JOIN AT WING STATION 150.0. THE AIRCRAFT IS EQUIPPED WITH FLINT WING TIP FUEL TANKS THAT WERE INSTALLED APPROXIMATELY 800 HOURS AGO. IT IS NOT KNOWN IF THIS IS A CONTRIBUTING FACTOR.
36	1982-07-26	GL10198281597	AIRFRAME		5426S	G	DOUBLER	REAR WING SPAR	CRACKER	5,342	5,342				INSP/MAINT	COMMON	CESSNA	337B	3370526	NONE	OTHER	REAR WING SPAR DOUBLER FOUND CRACKED DURING INSPECTION.
19	1979-08-07	Z197921900078	AIRFRAME		1347L		ANGLE	REAR SPAR	CRACKED	137	137				INSP/MAINT	COMMON	CESSNA	T337H	33701839	NONE	OTHER	THE ANGLE THAT ATTACHES ROOT RIB TO REAR SPAR OF RT WING CRACKED.
10	1979-07-23	Z197920400044	AIRFRAME		475DF		SPAR CAP	LT WING	CRACKED	3,579	3,579				INSP/MAINT	COMMON	CESSNA	M337B	3370343	NONE	OTHER	CW AD 78-09-05 FOUND LT WING FRONT LOWER SPAR CAP CRACKED FWD & AFT FASTENERS
14	1976-05-05	Z197612600042	AIRFRAME		2FOR		SPAR ATTACHMENT	RT REAR WING	FAILED	570	570				CRUISE	OVER 24 MO	CESSNA	337G	33701633	OTHER	OTHER	STRUCTURE FAILURE IN FLIGHT.RT REAR WING SPAR ATTACHMENT TO FUSELAGE IN WING.FAI LURE PARTIALLY HIDDEN BY INBD RIB
47	1975-11-24	Z197532800037	AIRFRAME		2FOR		SKIN	SREWS AT TANK	CRACKED-DEFORM	1,319	1,319				INSP/MAINT	OVER 24 MO	CESSNA	STC337	3370502	NONE	OTHER	ROBERTSON STOL CONVERSION PER STC NO SA 1627 WE, WING SURFACE PAINT PEELED, CRA CKED AND DEFORMED AT WING STRUT.
46	1975-11-24	Z197532800036	AIRFRAME		2FOR		SKIN	SCREWS AT TANK	CRACKED-DEFORM	1,481	1,481				INSP/MAINT	OVER 24 MO	CESSNA	STC337	3370683	NONE	OTHER	ROBERTSON STOL CONVERSION PER STC NO SA 1627 WE, WING SURFACE PAINT PEELED,CRACK ED AND DEFORMED AT WING STRUT
31	1975-06-23	Z197517400035	AIRFRAME		86530		SPAR	REAR CARRY TDRU	CRACK&KINK	820	820				INSP/MAINT	OVER 24 MO	CESSNA	337E	33701224	OTDER	OTDER	DURING AUTOPILOT INSTL AT REPAIR STA FOUND CRACK & KINK IN CARRY TDROUGH WING CE NTER SECTION REAR SPAR
(Less significant items below)
19	2001-08-08	AUS20010414	AIRFRAME	2001-05-04		G	RIVET	WING	LOOSE						INSP/MAINT		CESSNA	337		NONE	OTHER	(AUS) LT WING STRUT ATTACHMENT RIB TO OUTBOARD TIP RIVETS LOOSE AND MISSING. LEADING EDGE HAD BEEN REPLACED IN 1972.
43	2001-03-05	CA001228030	AIRFRAME	2000-11-15		A	FUEL TANK	RT WING	CRACKED	2,900					INSP/MAINT		CESSNA	337H		NONE	FLUID LOSS	(CAN) WHILE BEING STORED IN A HANGAR RIGHT WING WAS DISCOVERED TO BE LEAKING FUEL. UPON FURTHER INSPECTION NR3 FUEL TANKP/N 1516132-16 HAD A CRACK ON TOP NEAR THE TRAILING EDGE. FUEL TANK WAS THEN REMOVED, REPAIRED AND REINSTALLED.
28	1994-07-19	94ZZZX4022	AIRFRAME	1994-07-05	92GD	G	RIVET	LT WS 66	SHEARED	5,096	0				INSP/MAINT	COMMON	CESSNA	P337H	P3370343	NONE	UNKNOWN	TWO RIVETS FAILED AT LT WS 66, ON UPPER FORWARD SPAR CAP. THIS A/C HAS HAD THE ROBERTON STOL CONVERSION AND THE OUTBOARD RIVET FOUND UPSET BETWEEN THE RIB AND SPAR CAP. FAILURE ATTRIBUTED TO IMPROPER INSTALLATION.
26	1994-07-11	94ZZZX3806	AIRFRAME	1994-05-20	285	G	FUEL TANK	RT INBD	CRACKED	2,219	0				INSP/MAINT	FREQUENT	CESSNA	T337G	P3370228	NONE	FLUID LOSS	FUEL STAIN ON RT FUSELAGE AND ON GROUND AFTER TOPPING OFF FUEL TANKS THE NIGHT BEFORE. REMOVED INBOARD TANK COVER, FOUND .75 INCH LONG CRACK ACROSS A PREVIOUS WELD REPAIR. THIS IS SECOND CRACK IN TOP OF SKYMASTER TANK FOUND IN 6 MONTHS. IN THIS CASE, CRACK WAS AT AREA WHERE FORMED STIFFENING AREAS TRANSITIONED INTO FLAT SURFACE. SUBMITTER SUGGESTED POSSIBLE CAUSE WAS VIBRATION. WELDED REPAIRS ARE NOT SPECIFIED IN SERVICE MANUAL.
25	1981-03-13	NM66198175760	AIRFRAME		2QV	G	TANK	R/H INBD	LEAKING	650	650				INSP/MAINT	FREQUENT	CESSNA	P337H	P3370294	NONE	FLUID LOSS	TANK CORRODED + LEAKING R/H INBD
13	1981-02-24	NM41198173839	AIRFRAME		42WA	G	CELL		LEAKING	0	0				INSP/MAINT	FREQUENT	CESSNA	T337G	P3370205	NONE	FLUID LOSS	FOUND FUEL STAINS ON BOTTOM OF RT WING NEAR QUICK DRAIN.FOUND FUEL CELL LEAKING ON BOTTOM ALONG WELDED BAFFLE.
44	1978-08-22	Z197823400060	AIRFRAME		2488S		BOOM SUMP TANK	TOWER WELD	CRACKED	1,450	1,450				INSP/MAINT	OVER 24 MO	CESSNA	337	0788	NONE	OTHER	DURING INSP FOUND WELD AREA AROUND TOWERS CRACKED
12	1977-08-17	Z197722900072	AIRFRAME		72241		FUEL TNK	LFT INB	CRACKED	0	0				UNKNOWN	OVER 24 MO	CESSNA	337G	33701545	OTHER	OTHER	LFT INB FUEL TNK HAD FATIGUE CRK. CRK OCCURED AT STIFFENER.
11	1977-04-04	Z197709400044	AIRFRAME		53511			TOP OF TANK	CRACKED	780	780		151613317		INSP/MAINT	OVER 24 MO	CESSNA	337	33701671	NONE	OTHER	FOUND 1.5 INCH LONG CRACK ON TOP OF TANK. LEFT INBOARD.
14	1976-07-21	Z197620300056	AIRFRAME		326			BOTTOM REAR	CRACKED	85	85		151613326		CRUISE	OVER 24 MO	CESSNA	T337G	P3370238	NONE	OTHER	FUEL LEAKING FROM RT TANK TRACED TO THREE INCH CRACK IN BOTTOM OF TANK AT REAR BULKHEAD.
33	1976-06-08	Z197616000081	AIRFRAME		111LK		FAIRING	LEFT STRUT	CRACKED	570	570				INSP/MAINT	OVER 24 MO	CESSNA	337G	1503	NONE	OTHER	LEFT STRUT FAIRING FOUND CRACKED THRU ALL MOUNTING HOLES TOP AND BOTTOM.
21	1975-10-02	Z197527500046	AIRFRAME		8CF			RT WING	CRACKED	497	497		151612016		INSP/MAINT	OVER 24 MO	CESSNA	T337G	P3370043	NONE	OTHER	DURING INSP FOUND 1.50 IN CRACK IN TOP OF RT WING CENTER TANK
15	1975-09-24	Z197526700052	AIRFRAME		10MM			LT WG INBD TK	LEAKING	1,668	1,668		142600337		INSP/MAINT	OVER 24 MO	CESSNA	337D	0986	NONE	OTHER	TANK LEAKING AT WELDS. TANK HAD OTHER WELDS TO POROUS TO REPAIR.
29	1975-04-09	Z197509900083	AIRFRAME		79N			RT WING INBD	CRACKED	1,388	1,388		142600516		INSP/MAINT	OVER 24 MO	CESSNA	337	3370726	NONE	OTHER	RT AUX FUEL TANK DEVELOPED CRACKED ON TOP SIDE INBOARD AFT CORNER AREA. CRACK CA USED BY FLEXING OF TANK.
28	1974-07-22	Z197420300037	AIRFRAME		1872M			LT BOTTOM	CRACKED	484	484		15160571		INSP/MAINT	OVER 24 MO	CESSNA	337G	33701472	NONE	FLUID LOSS	FUEL UNDER SIDE LT WING.LT INBD TANK CRACKED AT INNER TANK BAFFLE WELD LOWER SID E
16	1974-06-21	Z197417200066	AIRFRAME		83C		FAIRING ASSY	RT WING-STRUT	CRACKED	95	95				INSP/MAINT	OVER 24 MO	CESSNA	337	0241	OTHER	OTHER	UPPER RT WING STRUT FAIRING CRACKED AT ATTACHING SCREW

RELATES TO AILERON
Row	Date Of Report	Operator Control Number	Segment	Date Of Occurrence	Aircraft Registration	Operation Type	Descriptive Name Of Part	Defective Location On Aircraft	Failed Part Condition	Part Total Time	Part Total Time Since Overhaul	Component Manufacturer	Component Manufacturer Model	Component Manufacturer Number	Stage Of Operation	Severity Factor	Aircraft Manufacturer	Aircraft Manufacturer Model	Aircraft Manufacturer Number	Precautionary Procedures	Nature Of Condition	zxcvbRemarkszxcvb
42	1980-06-19	CE64198072856	AIRFRAME		53475	G	CONTROL ROD	END TO RIVET	CRACKED	490	490				INSP/MAINT	OCCASIONAL	CESSNA	337	33701649	NONE	OTHER	LT AIL PUSH-PULL TUBE CRACKED FROM END OF TUBE TO LAST RIVET HOLE THAT ATTACHES ROD END BEARING.
21	1987-08-04	SO638783469	AIRFRAME	1987-06-29	2111X	G	PUSH PULL ROD	R/H AIL	SEVERE RUST	0	0				INSP/MAINT	OCCASIONAL	CESSNA	337	3370011	NONE	OTHER	LAST FOUR INCHES OF LT AND RT AILERON PUSH RODS SEVERELY RUSTED PROBABLE CAUSE WAS EXPOSURE TO OUTSIDE ELEMENTS. PUSHRODS WERE REPLACED. SUBMITTER RECOMMENDS EXTRA ATTENTION DURING SCHEDULED INSPECTIONS.
20	1987-08-04	SO638783468	AIRFRAME	1987-06-29	2111X	G	PUSH PULL ROD	L/H AIL	SEVERE RUST	0	0				INSP/MAINT	OCCASIONAL	CESSNA	337	3370011	NONE	OTHER	LAST FOUR INCHES OF LT AND RT AILERON PUSH RODS SEVERELY RUSTED PROBABLE CAUSE WAS EXPOSURE TO OUTSIDE ELEMENTS. PUSHRODS WERE REPLACED. SUBMITTER RECOMMENDS EXTRA ATTENTION DURING SCHEDULED INSPECTIONS.
(Less significant items below)
39	1986-02-24	SW998672908	AIRFRAME	1986-02-03	465DF	G	AILERON CABLE	BELLY PULLEY	FRAYED	5,642	5,642				INSP/MAINT	OCCASIONAL	CESSNA	M337B	337M0266	NONE	OTHER	ALL CABLES WERE REMOVED DUE TO HIGH AIRFRAME TIME. ALL CABLES HAD A MINIMUM OF ONE STRAND BROKEN. NONE OF THE DAMAGE COULD BE FOUND WITHOUT REMOVING CABLE ASSY.
8	1977-03-22	Z197708100027	AIRFRAME		72036		BRACKET	INBD CORNER	FAILED	730	730				INSP/MAINT	OVER 24 MO	CESSNA	337G	33701510	OTHER	OTHER	WHILE TENSIONING CABLES AFTER A-P INST,LT AILERON PULLEY BKT FAILED AT INBD ATCH HOLE,APPEARS BKT OUT OF LINE
23	1976-12-14	Z197634900053	AIRFRAME		86513		SCREWS	RT AIL BAL WT	LOOSE	1,439	1,439				UNKNOWN	OVER 24 MO	CESSNA	337E	33701216	OTHER	OTHER	3 SCREWS LOOSE ON RT AILERON BALANCE WT

RELATES TO HORIZONTAL STABILIZER (excluding elevator)
Row	Date Of Report	Operator Control Number	Segment	Date Of Occurrence	Aircraft Registration	Operation Type	Descriptive Name Of Part	Defective Location On Aircraft	Failed Part Condition	Part Total Time	Part Total Time Since Overhaul	Component Manufacturer	Component Manufacturer Model	Component Manufacturer Number	Stage Of Operation	Severity Factor	Aircraft Manufacturer	Aircraft Manufacturer Model	Aircraft Manufacturer Number	Precautionary Procedures	Nature Of Condition	zxcvbRemarkszxcvb
31	1994-08-15	94ZZZX4488	AIRFRAME	1994-07-01	7CP	G	RIB	HORIZ STAB LE	CRACKED	2,655	0				INSP/MAINT	UNCOMMON	CESSNA	T337G	P3370016	NONE	OTHER	DURING ANNUAL INSPECTION, A SMALL CRACK WAS FOUND NEAR THE RIVET LINE ON THE UNDERSIDE OF THE LEADING EDGE SKIN JUST AFT OF THE DE-ICE BOOT OR THE HORIZONTAL STABILIZER. UPON FURTHER INSPECTION AND REMOVAL OF THE DE-ICER BOOT, NUMEROUS HOLES AND CRACKS WERE FOUND ALONG THE LEADING EDGE SKIN DUE TO RIVETS WHICH HAD PULLED THROUGH THE SKIN. REMOVAL OF THE HORIZONTAL LEADING EDGE SKIN REVEALED SIX LEADING EDGE RIBS AND THREE CENTER SECTION RIBS WHICH WERE CRACKED.
30	1994-08-15	94ZZZX4487	AIRFRAME	1994-07-01	7CP	G	SKIN	HORIZONTAL STAB	CORRODED	2,655	0				INSP/MAINT	UNCOMMON	CESSNA	T337G	P3370016	NONE	OTHER	DURING ANNUAL INSPECTION, A SMALL CRACK WAS FOUND NEAR THE RIVET LINE ON THE UNDERSIDE OF THE LEADING EDGE SKIN JUST AFT OF THE DE-ICE BOOT OR THE HORIZONTAL STABILIZER. UPON FURTHER INSPECTION AND REMOVAL OF THE DE-ICER BOOT, NUMEROUS HOLES AND CRACKS WERE FOUND ALONG THE LEADING EDGE SKIN DUE TO RIVETS WHICH HAD PULLED THROUGH THE SKIN. REMOVAL OF THE HORIZONTAL LEADING EDGE SKIN REVEALED SIX LEADING EDGE RIBS AND THREE CENTER SECTION RIBS WHICH WERE CRACKED.
48	1986-06-11	SW688679326	AIRFRAME	1986-04-17	140VE	G	STAB	R/H VERT FIN	BOLT SHEARED	3,650	3,650				INSP/MAINT	UNCOMMON	CESSNA	337H	33701945	NONE	UNKNOWN	DURING ANNUAL INSP HORIZ STAB FOUND LOOSE AT FWD ATTACH POINT TO R/H VERTICAL FIN. FURTHER INVESTIGATION REVEALED BOTTOMATTACH BOLT MISSING HEAD AND UPPER BOLT LOOSE DUE TO WEAR OF DOUBLER AFT OF SPAR. UPPER HOLE FOUND ELONGATED TO 1/2 INC H. BOTTOM OF SPAR WEB DAMAGED BY CHAFING ON NON-STRUCTURAL SKIN OF VERTICAL FIN. DAMAGE TO VERTICAL FIN SPAR WEB ON LEFTAND RIGHT SIDE WAS NOTED IN THE FORM OF SLIGHT ELONGATION OF 1/4 INCH BOLT HOLES. PROBABLE CAUSE NOT READILY APPARENT, ALTHOUGH REAR ENGINE VIBRATION MAY HAVE AGRAVATED SOME DAMAGE NOT NOTICED AFTER GEAR-UP LANDING IN 1984. ANNUAL INSPECTION OF PREVIOUS YEAR SHOWED NO APPARENT PROBLEM IN THIS AREA. RECOMMEND MORE STRINGENT ANNUAL INSP REQUIRED.
17	1976-01-13	Z197601300034	AIRFRAME		2107X		SPAR	FRONT STAB	CHAFED	2,186	2,186				INSP/MAINT	OVER 24 MO	CESSNA	337	3370007	NONE	OTHER	DURING INSP,HORIZ STAB WAS FOUND TO HAVE DAMAGE ON BOTH ENDS.FUSELAGE SKIN HAD C HAFED THE SPAR WEB & RADIUS-SPAR CP

RELATES TO ELEVATOR
Row	Date Of Report	Operator Control Number	Segment	Date Of Occurrence	Aircraft Registration	Operation Type	Descriptive Name Of Part	Defective Location On Aircraft	Failed Part Condition	Part Total Time	Part Total Time Since Overhaul	Component Manufacturer	Component Manufacturer Model	Component Manufacturer Number	Stage Of Operation	Severity Factor	Aircraft Manufacturer	Aircraft Manufacturer Model	Aircraft Manufacturer Number	Precautionary Procedures	Nature Of Condition	zxcvbRemarkszxcvb
38	1995-04-21	95ZZZX1909	AIRFRAME	1995-03-16	2284X	G	RIB	ELEV END RIB LT	CRACKED	1,060					INSP/MAINT		CESSNA	337	3370184	NONE	OTHER	END RIB WHERE PN 1532009-203 (part 36 in fig. below) ATTACHES, BADLY CORRODED AND CRACKED. ELEVATOR ACTUATING ARM HAS STEEL BRACKET, WAS BADLY RUSTED AND RIVETS SHEARED.
42	1990-05-23	WP119085510	AIRFRAME	1990-03-15	86488	G	BALANCE ARM	ELEV TORQUE TUBE	HOLES ELONGATED	2,050	2,050				INSP/MAINT	UNCOMMON	CESSNA	T337	T33701208	NONE	FLT CONT AFFECTED	OWNER COMPLAINED ABOUT BOOM BOUNCE IN CRUISE. FOUND HOLES ELONGATED IN ELEVATOR BALANCE WEIGHT ARM TORQUE TUBE ASSEMBLY ALLOWING MOVEMENT BETWEEN ARM AND TORQUE TUBE WHICH ALLOWS ELEVATOR TO FLUTTER.
10	1986-11-05	SW618687818	AIRFRAME	1986-09-15	5KR	G	BELLCRANK	ELEV TRIM	ELONGATED HOLES	0	0				INSP/MAINT	UNCOMMON	CESSNA	P337H	P3370335	NONE	OTHER	ON 100 HR INSP, SEVERE UP AND DOWN TRAVEL OF ELEVATOR TRIM TAB IN A STATIC CONDITION WAS DISCOVERED. FURTHER INVESTIGAT ION REVEALED ELONGATED HOLES IN BOTH (2 EA) NR 1432023-1 BELLCRANK LINKS (part 21 in fi. below). THESE LINKS ARE APPROX .030 INCH THICKNESS EA CH. NEW LINKS WERE MANUFACTURED IN HOUSE OF .060 INCH THICKNESS ALUMINUM AND INSTALLED. ADDITIONAL EFFECTS OF THIS PAR T FAILURE INCLUDE IMPENDING FAILURE OF THE ELEVATOR TRIM TAB HINGES. PART NR 1432010-30 AND NR 1432010-32. NOTE - NO CONTROL VIBRATIONS WERE NOTED BY OPERATORS.
22	1985-07-03	EU51198580252	AIRFRAME		19MC	G	LINK	BOLT HOLE	WORN	0	0				NOT REPORTED	UNCOMMON	CESSNA	337G	P3370015	NONE	FLT CONT AFFECTED, VIBRATION/BUFFET	BOLT HOLE IN ELEV TAB ACTUATOR LINK WORN CAUSING TAB TO VIBR AND FLUTTER.
1	1985-03-28	EU51198574609	AIRFRAME		2FOR	G	ELEV ACT ARM	PIN BORE	CRACKED	890	890				INSP/MAINT	UNCOMMON	CESSNA	T337G	P3370288	NONE	OTHER	DURING 200 HR INSP, FOUND LH + RH ELEV ACT ARMS CRKD AT INNER FACE OF ATTACH.CRKS START AT LARGE SIDE OF PIN BORE. ENTRDAS 2 RPTS.
50	1985-03-28	EU51198574608	AIRFRAME		2FOR	G	ELEV ACT ARM	PIN BORE	CRACKED	890	890				INSP/MAINT	UNCOMMON	CESSNA	T337G	P3370288	NONE	OTHER	DURING 200 HR INSP, FOUND LH + RH ELEV ACT ARMS CRKD AT INNER FACE OF ATTACH.CRKS START AT LARGE SIDE OF PIN BORE.ENTRD AS 2 RPTS.
12	1984-05-25	WP08198478208	AIRFRAME		2424S	G	ARM	FWD ATT BOLT	BROKE	1,217	1,217				INSP/MAINT	UNCOMMON	CESSNA	337B	3370724	NONE	OTHER	ELEV TRIM TAB ARM BROKE AT FWD ATTACH BOLT.
37	1980-12-02	GL03198082475	AIRFRAME		60E	G	SKIN-RIBS	LEADG EDGE	CRACKED	0	0				INSP/MAINT	UNCOMMON	CESSNA	P337H	P3370124	NONE	OTHER	RIBS CRACKED AND REPLACED SKIN AND PART NOS. 1432018-51, 1432018-51 AND 1432018-52 (parts 4, 13, 14 in fig. below).
32	1980-10-29	CE64198080898	AIRFRAME		3666X	G	ROD END		BROKE	2,193	2,193				CRUISE	UNCOMMON	CESSNA	337A	3370496	NONE	FLT CONT AFFECTED	ELEV LOWER CONTROL ROD END BROKE DURING FLT SEPARATING ELEV FROM ELEV CONTROL SY STEM.BREAK WAS IN THREADED AERA
45	1978-08-22	Z197823400063	AIRFRAME		2488S		WEIGHT ARM	TAPER PIN HOLE	CRACKED	1,450	1,450				INSP/MAINT	OVER 24 MO	CESSNA	337	0788	NONE	OTHER	DURING INSP FOUND WEIGHT ARM CRACKED AT POINT WHERE TAPER PINS ATTACH TO TORQUE TUBE
33	1976-09-01	Z197624500108	AIRFRAME		5317S		ROD	AT THREADS	BROKEN	2,300	2,300				CRUISE	OVER 24 MO	CESSNA	337A	3370147	OTHER, UNSCHED LANDING	OTHER	ELEV TRIM TAB CONTROL ROD BROKE AT THREADS DURING FLIGHT
(Less significant items below)
17	1991-09-05	91ZZZX10161	AIRFRAME	1991-07-18		G	CABLE	RT TAIL BOOM	WRAPPED AROUND	0	226				INSP/MAINT	UNCOMMON	CESSNA	P337H		NONE	OTHER	DURING ANNUAL INSPECTION FOUND ELEVATOR TRIM CABLE WRAPPED AROUND RUBBER CABLE AND THEN WRAPPED AROUND ITSELF INSIDE THE RIGHT TAIL BOOM FRONT SECTION. SUGGEST CLOSE INSPECTION IN THIS AREA WITH A BRIGHT LIGHT AS THIS AREA IS CLOSE AND HARD TO SEE.
9	1988-12-15	NM078898142	AIRFRAME	1988-11-02	3000T	G	CABLE	UP ELEV	ABRAIDED	2,091	2,091				INSP/MAINT	UNCOMMON	CESSNA	T337B	T3370600	NONE	OTHER	DURING ANNUAL INSPECTION OF CONTROL CABLES IN LEFT TAIL BOOM FOUND THE UP ELEV CABLE (P/N 1460100-12) BADLY ABRAIDED BY THE LOWER EDGE OF THE PULLEY BRACKET ASSY (P/N 1470066-12) LOCATED IMMEDIATELY AFT OF THE AUTOPILOT PITCH ACTUATOR. IT APPEARS THAT PULLEY BRACKET ASSY WAS MOUNTED TOO LOW IN THE TAIL BOOM THUS CAUSING INTERFERENCE WITH THE CABLE.
47	1986-06-11	EA038679315	AIRFRAME	1986-04-17	4DU	G	ACTUATING ARM	LT ELEV	CRACKED	624	624				INSP/MAINT	UNCOMMON	CESSNA	P337H	P3370311	NONE	OTHER	DURING ANNUAL INSPECTION FOUND LEFT ELEVATOR ACTUATING ARM CRACKED. CRACK STARTS AT INBOARD TAPPER PIN HOLE AND RUNS FOR.25 INCH. CAUSE--MAY BE AIRCRAFT BEING IN WIND WITHOUT CONTROL LOCK BEING INSTALLED. BALANCE WEIGHT FOR ELEVATOR IS MOU NTED ON END OF THIS ARM. INSTALLATION OF ELEVATOR CONTROL LOCK AT ALL TIMES AND INSPECTION OF ARM AT TAPPERED PIN HOLES.
40	1984-12-05	GL08198488623	AIRFRAME		4KP	G	SPROCKET	HORIZONTAL STAB	LOST PINS	0	0				NOT REPORTED	UNCOMMON	CESSNA	T337G	P3370255	OTHER	OTHER, WARNING INDICATION	BOTH PINS HOLDING ELEVATOR TRIM CHAIN TO SPROCKET FELL OUT.
27	1980-10-17	WP01198080312	AIRFRAME		2144X	G	BUMPER BLOCK	RT FIN FOR ELEV	BROKEN	3,350	3,350				INSP/MAINT	UNCOMMON	CESSNA	337	3370044	NONE	OTHER	VERTICAL FIN INSTALLATION-ELEVATOR DOWN BUMPER BLOCK BRACKET BROKEN
40	1975-05-02	Z197512200031	AIRFRAME		5325S		STOPS	VERT FIN AREA	SEPARTED	0	0				CRUISE	OVER 24 MO	CESSNA	337A	3370425	UNSCHED LANDING	FLT CONT AFFECTED	ELEV CONTROLS JAMMED IN NEUTRAL POS.FOUND STOP BOLT & NUT IN VERT FIN SEPARATED FROM STRUCTURE,OVERTRVL BENT CTL RD

RELATES TO VERTICAL STABILIZER (excluding rudder)
Row	Date Of Report	Operator Control Number	Segment	Date Of Occurrence	Aircraft Registration	Operation Type	Descriptive Name Of Part	Defective Location On Aircraft	Failed Part Condition	Part Total Time	Part Total Time Since Overhaul	Component Manufacturer	Component Manufacturer Model	Component Manufacturer Number	Stage Of Operation	Severity Factor	Aircraft Manufacturer	Aircraft Manufacturer Model	Aircraft Manufacturer Number	Precautionary Procedures	Nature Of Condition	zxcvbRemarkszxcvb
29	1994-08-01	94ZZZX4286	AIRFRAME	1994-07-21	92GD	G	RIB	VERTICAL FIN	CRACKED	5,096	0				INSP/MAINT	UNCOMMON	CESSNA	P337H	P3370343	NONE	OTHER	DURING AN ANNUAL INSPECTION, A RIB IN THE VERTICAL FIN WAS FOUND CRACKED APPROXIMATELY .3750 INCH LONG INITIATING AT THE AFT INBOARD BEND RADIUS. THE SAME CONDITION WAS FOUND IN BOTH THE LT AND RT VERTICAL FINS. CESSNA WAS CONTACTED TO DETERMINE THE PART NUMBER SINCE IT IS NOT SHOWN IN THE I.P.C. NO DIRECT CAUSE FOR THE CRACK COULD BE DETERMINED.
22	1991-10-30	91ZZZX1705	AIRFRAME	1991-08-19	2181X	G	FITTING	FIN ATTACHMENT	CORRODED	0	0				INSP/MAINT	UNCOMMON	CESSNA	337	3370081	NONE	OTHER	CORROSION. DURING ANNUAL INSPECTION RIGHT VERTICAL TAIL FIN ATTACHMENT TO RIGHT REAR HORIZONTAL STABILIZER ATTACH FITTING, P/N 1431003-36 (part 35 in fig. below). CORRODED TO CONDITION OF EXFOLIATION. TOTAL TIME AIRCRAFT 3450.0 HOURS.
39	1988-03-23	CE658876348	AIRFRAME		88N	G	RIB	R/H VERT STAB	CRACKED	4,677	4,677				INSP/MAINT	UNCOMMON	CESSNA	T337H	1947	NONE	OTHER	ON ANNUAL INSPECTION, FOUND RIB CRACKED IN AFT INBOARD CORNER NEAR ELEVATOR STOP BOLT BRACKET IN BOTH VERTICAL STAB ASSEMBLIES.
38	1988-03-23	CE658876347	AIRFRAME		88N	G	RIB	L/H VERT STAB	CRACKED	4,677	4,677				INSP/MAINT	UNCOMMON	CESSNA	T337H	1947	NONE	OTHER	ON ANNUAL INSPECTION, FOUND RIB CRACKED IN AFT INBOARD CORNER NEAR ELEVATOR STOP BOLT BRACKET IN BOTH VERTICAL STAB ASSEMBLIES.
48	1986-06-11	SW688679326	AIRFRAME	1986-04-17	140VE	G	STAB	R/H VERT FIN	BOLT SHEARED	3,650	3,650				INSP/MAINT	UNCOMMON	CESSNA	337H	33701945	NONE	UNKNOWN	DURING ANNUAL INSP HORIZ STAB FOUND LOOSE AT FWD ATTACH POINT TO R/H VERTICAL FIN. FURTHER INVESTIGATION REVEALED BOTTOMATTACH BOLT MISSING HEAD AND UPPER BOLT LOOSE DUE TO WEAR OF DOUBLER AFT OF SPAR. UPPER HOLE FOUND ELONGATED TO 1/2 INC H. BOTTOM OF SPAR WEB DAMAGED BY CHAFING ON NON-STRUCTURAL SKIN OF VERTICAL FIN. DAMAGE TO VERTICAL FIN SPAR WEB ON LEFTAND RIGHT SIDE WAS NOTED IN THE FORM OF SLIGHT ELONGATION OF 1/4 INCH BOLT HOLES. PROBABLE CAUSE NOT READILY APPARENT, ALTHOUGH REAR ENGINE VIBRATION MAY HAVE AGRAVATED SOME DAMAGE NOT NOTICED AFTER GEAR-UP LANDING IN 1984. ANNUAL INSPECTION OF PREVIOUS YEAR SHOWED NO APPARENT PROBLEM IN THIS AREA. RECOMMEND MORE STRINGENT ANNUAL INSP REQUIRED.
27	1980-10-17	WP01198080312	AIRFRAME		2144X	G	BUMPER BLOCK	RT FIN FOR ELEV	BROKEN	3,350	3,350				INSP/MAINT	UNCOMMON	CESSNA	337	3370044	NONE	OTHER	VERTICAL FIN INSTALLATION-ELEVATOR DOWN BUMPER BLOCK BRACKET BROKEN
40	1975-05-02	Z197512200031	AIRFRAME		5325S		STOPS	VERT FIN AREA	SEPARTED	0	0				CRUISE	OVER 24 MO	CESSNA	337A	3370425	UNSCHED LANDING	FLT CONT AFFECTED	ELEV CONTROLS JAMMED IN NEUTRAL POS.FOUND STOP BOLT & NUT IN VERT FIN SEPARATED FROM STRUCTURE,OVERTRVL BENT CTL RD
23	1974-07-09	Z197419000088	AIRFRAME		75BB		RIB	VERT STABL	CRACKED	4,786	4,786				INSP/MAINT	OVER 24 MO	CESSNA	337	3370834	NONE	OTHER	SEVERELY CRACKED RIB IN VERTICAL STABILIZER.

RELATES TO RUDDER
Row	Date Of Report	Operator Control Number	Segment	Date Of Occurrence	Aircraft Registration	Operation Type	Descriptive Name Of Part	Defective Location On Aircraft	Failed Part Condition	Part Total Time	Part Total Time Since Overhaul	Component Manufacturer	Component Manufacturer Model	Component Manufacturer Number	Stage Of Operation	Severity Factor	Aircraft Manufacturer	Aircraft Manufacturer Model	Aircraft Manufacturer Number	Precautionary Procedures	Nature Of Condition	zxcvbRemarkszxcvb
23	1999-02-12	CA981230030	AIRFRAME	1998-12-30		G	RIB	RUDDER	CRACKED	6,447			143100088		INSP/MAINT		CESSNA	337G		NONE	OTHER	(CAN) .75 INCH CRACK FOUND ON RIGHT RUDDER UPPER RIB WHERE THE MASS BALANCE WEIGHT ATTACHES. REPLACEMENT RIB FABRICATEDPER SRM AND AC43.13 GUIDELINES.
41	1995-09-08	95ZZZX4474	AIRFRAME	1995-08-09	72086	G	SPAR	RUDDER	BROKEN	2,875			143100058		INSP/MAINT		CESSNA	337G	33701518	NONE	OTHER	AT ANNUAL, FOUND RIGHT RUDDER SPAR BROKEN AT BALANCE WEIGHT RIB ATTACH.
14	1991-04-24	GL199184063	AIRFRAME	1990-10-01	40Z	G	RIB	LEFT RUDDER TIP	CRACKED	1,128	1,128				INSP/MAINT	UNCOMMON	CESSNA	P337H	P3370313	NONE	OTHER	WHILE REPLACING THE LEFT RUDDER TIP FOR CRACKS THE BALANCE WEIGHT SUPPORT RIB WAS FOUND CRACKED ON BOTH SIDES BETWEEN THE 2 CENTER NUTPLATES. THIS RIB IS SECURED BY 4 SCREWS ON EACH SIDE, 2 GO TO THE LAST RIB IN THE RUDDER AND 2 ARE SECURED ONLY TO THE PLASTIC RUDDER TIP. THE RUDDER TIP WAS CRACKED AT THE SCREW HOLES ON BOTH SIDES ALLOWING THE RIB TO TAKE ALL THE LOAD FROM THE BALANCE WEIGHT.
25	1985-07-29	WP02198581713	AIRFRAME		1385L	G	RIB ASSY	RH RUDDER TIP	CRACKED	1,398	1,398				INSP/MAINT	UNCOMMON	CESSNA	T337H	33701877	NONE	OTHER	RUDDER TIP RIB CRACKED AND ALLOWED WEIGHT TO DROOP AND SCRAPE TOP OF STABILIZER.
44	1984-12-26	WP07198489653	AIRFRAME		86230	G	CHANNEL	CENTER SUPT	BROKEN	1,946	1,946				INSP/MAINT	UNCOMMON	CESSNA	337D	3371119	NONE	OTHER	RUDDER BALANCE BAR ATTACH CHANNEL BROKEN.
23	1982-03-29	WP12198275178	AIRFRAME		1326S	G	RIB	RUDDER	CRACKED	345	345				INSP/MAINT	UNCOMMON	CESSNA	T337H	33701904	NONE	OTHER	ON REMOVAL OF RUDDER TIP CAP TOP RIB ASSY PART 143100215 (part 6 in fig. below) CRACKED BETWEEN SECOND AND THIRD SCREW HOLES FOR CAP.
25	1977-01-05	Z197700500030	AIRFRAME		1VF		FAIRING	TOP RT RUDDER	BROKEN	796	796				INSP/MAINT	OVER 24 MO	CESSNA	T337G	330098	OTHER	OTHER	ROYALITE FAIRING AT TOP OF RT RUDDER TIP SUPPORTS FWD 7 IN OF RIB WHICH CONTAINS 3LB LEAD WT.4 SCREW HOLES CR OUT
(Less significant items below)
11	1988-12-15	NM078898190	AIRFRAME	1988-08-26	3000T	G	CABLE	RUDDER AT BOOM	WORN	2,091	2,091				INSP/MAINT	UNCOMMON	CESSNA	T337B	3370600	NONE	OTHER	ROUTINE ANNUAL INSPECTION OF CABLES IN RIGHT TAIL BOOM REVEALED THAT THE RIGHT RUDDER CABLE WAS BADLY WORN AT THE GUIDE ASSEMBLY (P/N 1560100-22) ON THE ELECTRIC PITCH TRIM SERVO AT APPROX STA 110. THE CABLE GUIDE GROMMET (P/N S-1291-6) WAS MISSING FROM THE GUIDE ASSEMBLY ALLOWING THE CABLE TO WEAR DIRECTLY ON THE METAL GUIDE.
38	1986-02-24	SW998672907	AIRFRAME	1986-02-03	470DF	G	RUDDER CABLE	THRU BOOM GUIDE	FRAYED	4,688	4,688				INSP/MAINT	UNCOMMON	CESSNA	M337B	337M0254	NONE	OTHER	ALL CABLES WERE REMOVED DUE TO HIGH AIRFRAME TIME. ALL CABLES HAD A MINIMUM OF ONE STRAND BROKEN. NONE OF THE DAMAGE COULD BE FOUND WITHOUT REMOVING CABLE ASSY.

RELATES TO TAIL BOOM
Row	Date Of Report	Operator Control Number	Segment	Date Of Occurrence	Aircraft Registration	Operation Type	Descriptive Name Of Part	Defective Location On Aircraft	Failed Part Condition	Part Total Time	Part Total Time Since Overhaul	Component Manufacturer	Component Manufacturer Model	Component Manufacturer Number	Stage Of Operation	Severity Factor	Aircraft Manufacturer	Aircraft Manufacturer Model	Aircraft Manufacturer Number	Precautionary Procedures	Nature Of Condition	zxcvbRemarkszxcvb
50	2003-10-20	AUS20030912	AIRFRAME	2003-09-08		G	STRUCTURE	TAILBOOM	CORRODED						INSP/MAINT		CESSNA	337G		NONE	OTHER	(AUS) LT TAILBOOM LOWER STRUCTURE CORRODED IN AREA OF ATTACHMENT TO WING STRUCTURE. CORROSION IS BOTH INTERNAL AND EXTERNAL. RT TAILBOOM CONTAINED INTERNAL CORROSION ONLY.
41	1988-03-23	EA218876366	AIRFRAME	1988-02-06	74L	G	SCREWS	TAIL BOOM	LOOSE	3,524	3,524				INSP/MAINT	UNCOMMON	CESSNA	337G	33701814	NONE	OTHER	DURING ANNUAL, CHECKED TAIL BOOM ATTACHING SCREWS AND FOUND ABOUT 40 PERCENT OF THE SCREWS LOOSE. THIS IS THE SECOND OCCURENCE OF THIS CONDITION FOUND ON THIS AIRCRAFT. THE FIRST OCCURRENCE WAS AT 2186 HOURS. SUBMITTER RECOMMENDS THAT THESE SCREWS BE RETORQUED AT THE ANNUAL INSPECTION. SUBMITTER RECOMMENDS TORQUE IS 90-95 INCH POUNDS. FOUND SOME SCREWS AS LOW AS 35 INCH POUNDS.
40	1988-03-23	EA218876365	AIRFRAME	1988-02-16	74L	G	SCREWS	TAIL BOOM	LOOSE	3,524	3,524				INSP/MAINT	UNCOMMON	CESSNA	337G	33701814	NONE	OTHER	DURING ANNUAL, CHECKED TAIL BOOM ATTACHING SCREW AND FOUND ABOUT 40 PERCENT OF THE SCREWS LOOSE. THIS IS THE SECOND OCCURRENCE OF THIS CONDITION FOUND ON THIS AIRCRAFT. THE FIRST OCCURRENCE WAS AT 2186 HOURS. SUBMITTER RECOMMENDS THAT THESE SCREWS BE RETORQUED AT THE ANNUAL INSPECTION. SUBMITTER RECOMMENDS TORQUE IS 90-95 INCH POUNDS. FOUND SOME SCREWS AS LOW AS 35 INCH POUNDS.
44	1978-08-22	Z197823400060	AIRFRAME		2488S		BOOM SUMP TANK	TOWER WELD	CRACKED	1,450	1,450				INSP/MAINT	OVER 24 MO	CESSNA	337	0788	NONE	OTHER	DURING INSP FOUND WELD AREA AROUND TOWERS CRACKED

RELATES TO FLAP CABLES
Row	Date Of Report	Operator Control Number	Segment	Date Of Occurrence	Aircraft Registration	Operation Type	Descriptive Name Of Part	Defective Location On Aircraft	Failed Part Condition	Part Total Time	Part Total Time Since Overhaul	Component Manufacturer	Component Manufacturer Model	Component Manufacturer Number	Stage Of Operation	Severity Factor	Aircraft Manufacturer	Aircraft Manufacturer Model	Aircraft Manufacturer Number	Precautionary Procedures	Nature Of Condition	zxcvbRemarkszxcvb
14	2004-03-30	CA040122003	AIRFRAME	2004-01-21		G	CONTROL CABLE	TE FLAPS	FRAYED						INSP/MAINT		CESSNA	T337G		NONE	OTHER	(CAN) DURING INSPECTION IT WAS DISCOVERED THAT THESE CABLES (2EA. 1 LEFT AND 1 RIGHT) WERE FRAYED WHERE THE CABLE BENDSAROUND THE FLAP CABLE QUADRANT LOCATED IN THE WING TRAILING EDGE.
13	2004-03-30	CA040122002	AIRFRAME	2004-01-21		G	CONTROL CABLE	TE FLAPS	FRAYED						INSP/MAINT		CESSNA	T337G		NONE	OTHER	(CAN) DURING INSPECTION IT WAS DICOVERED THAT THESE CABLES (2EA. 1 LT AND 1 RT) WERE FRAYED WHERE THE CABLE BENDS AROUNDTHE FLAP CABLE QUADRANT LOCATED IN THE WING TRAILING EDGE.
12	2004-03-29	AUS20031318	AIRFRAME	2003-11-28		G	CONTROL CABLE	TE FLAPS	FRAYED						INSP/MAINT		CESSNA	337H		NONE	OTHER	(AUS) IB FLAP CABLE CONTAINED BROKEN WIRES LOCATED AT TIGHT BEND AROUND THE BELLCRANK. APPROXIMATELY 50 PERCENT OF THEWIRES WERE BROKEN. INSPECTION CARRIED OUT IN RESPONSE TO MFG ALERT.
9	2004-03-25	CA040225011	AIRFRAME	2004-02-24		G	CONTROL CABLE	TE FLAPS	FRAYED						INSP/MAINT		CESSNA	337A		NONE	OTHER	(CAN) FLAP CABLES REMOVED FOR INSPECTION DUE TO SERVICE DIFFICULTY ALERT AL-2003-05. LT AND RT OUTBOARD FLAP CABLES FOUND TO BE FREYED AT THE INBOARD BELLCRANK, APPROXIMATELY 1 INCH FROM THE SWAGGED TERMINAL. BOTH CABLES ARE ORIGINAL CESSNAFLAP CABLES AND WERE REPLACED WITH NEW CESSNA FLAP CABLES. ALSO, THE RT, INBOARD FLAP CABLE WAS FREYED AT THE INBOARD BELLCRANK, APPROXIMATELY 1 INCH FROM THE SWAGGED TERMINAL.
5	2004-01-08	AUS20031143	AIRFRAME	2003-10-16		G	CONTROL CABLE	TE FLAP	FRAYED						INSP/MAINT		CESSNA	T337G		NONE	OTHER	(AUS) LT AND RT FLAP DOWN CABLES PN 1460100-7 AND PN 1460100-8 FRAYED WITH BROKEN STRANDS AROUND BELLCRANK ACTUATOR.
2	2003-10-21	CA031001010	AIRFRAME	2003-09-23		G	CONTROL CABLE	TE FLAPS	DAMAGED						INSP/MAINT		CESSNA	337G		NONE	OTHER	(CAN) A SPECIAL INSPECTION WAS INITIATED TO COMPLY WITH REMOVAL AND INSPECTION OF FLAP CONTROL CABLES THAT ARE CONNECTEDTO THE INBOARD FLAP BELLCRANK. CABLE PN 14601007 AND 14601008 WERE BOTH FOUND TO HAVE SEVERAL BROKEN STRANDS AND REQUIRED REPLACEMENT SERVICE DIFFICULTY ALERT AL 2003-05 REFERS TO THIS PROBLEM.
1	2003-10-21	CA031001009	AIRFRAME	2003-09-23		G	CONTROL CABLE	TE FLAPS	DAMAGED						INSP/MAINT		CESSNA	337G		NONE	OTHER	(CAN) A SPECIAL INSPECTION WAS INITIATED TO COMPLY WITH REMOVAL AND INSPECTION OF FLAP CONTROL CABLES THAT ARE CONNECTEDTO THE INBOARD FLAP BELLCRANK. CABLE P/N 1460 100-7 AND 1460100-8 WERE BOTH FOUND TO HAVE SEVERAL BROKEN STRANDS AND REQUIRED REPLACEMENT. SERVICE DIFFICULTY ALERT AL2003-05 REFERS TO THIS PROBLEM.
49	2003-07-03	CA030602001	AIRFRAME	2003-05-30		G	CONTROL CABLE	FLAP ACTUATOR	DAMAGED						INSP/MAINT		CESSNA	337G		NONE	OTHER	(CAN) AFTER RECEIVING SDR ALERT AL-2003-05 AN INSPECTION WAS CARRIED OUT ON OUR 337G. TWO CABLES ON BOTH SIDES WERE FOUND DAMAGED. THE DAMAGE WAS LOCATED EXACTLY IN THE SAME LOCATION AS MENTION IN THE ALERT IE AROUND THE SHARP BEND OF THE BELLCRANK. ALL CABLES HAD TO BE REMOVED TO SEE THE DAMAGE.HAD THEY NOT THE DAMAGE WOULD OF WENT UNNOTICED. BOTH SETS OF CABLES WERE REPLACED WITH SERVICEABLE UNITS.
48	2003-07-02	CA030606010	AIRFRAME	2003-06-06		G	CONTROL CABLE	TE FLAP	FRAYED						NOT REPORTED		CESSNA	337A		ACTIVATE FIRE EXT.	FLT CONT AFFECTED	(CAN) INSPECTION OF FLAP CABLES IAW SERVICE DIFFICULTY ALERT NR AL-2003-05, FOUND THREE FRAYED CABLE ENDS, ONE AT OUTBOARD BELLCRANK.
47	2003-06-17	AUS20030479	AIRFRAME	2003-03-09		G	CONTROL CABLE	TE FLAPS	FRAYED						INSP/MAINT		CESSNA	M337B		NONE	OTHER	(AUS) LH TRAILING EDGE FLAP CONTROL CABLE CONTAINED BROKEN STRANDS IN AREA APPROXIMATELY 25.4MM (1IN) FROM SWAGE AT BELLCRANK END.
42	2003-05-07	AUS20030355	AIRFRAME	2003-02-27		A	CONTROL CABLE	TE FLAPS	FRAYED						INSP/MAINT		CESSNA	337B		NONE	OTHER	(AUS) RT INBOARD FLAP CABLE CONTAINED BROKEN STRANDS LOCATED IN AREA APPROXIMATELY 25.4MM TO 38.1MM (1IN TO 1.5IN) FROMTHE INBOARD BELLCRANK TURNBUCKLE.
41	2003-04-29	AUS20030264	AIRFRAME	2003-03-03		G	CONTROL CABLE	TE FLAP	CORRODED						INSP/MAINT		CESSNA	337A		NONE	OTHER	(AUS) FLAP CONTROL CABLES PN 14601007 AND PNO 14601008 CORRODED AND FRAYED.
40	2003-04-14	CA030227005	AIRFRAME	2003-02-27		G	CONTROL CABLE	TE FLAPS	FRAYED						NOT REPORTED		CESSNA	337G		OTHER	OTHER	(CAN) DURING 100 HR INSPECTION THE INBOARD RIGHT HAND FLAP CABLE WAS INSPECTED FOR WEAR IN THE AREA OF THE INBOARD FLAPBELLCRANK. CABLE WAS FOUND FRAYED APPROX. 1 INCH FROM CABLE END ATTACH FITTING.CABLE R EPLACED.
21	1999-01-22	99ZZZX297	AIRFRAME	1998-11-09	2655S	G	CONTROL CABLE	TE FLAP	SEVERED						APPROACH		CESSNA	337C	3370955	ABORTED APPROACH	FLT CONT AFFECTED	THE LEFT FLAP CONTROL CABLE WAS FOUND BADLY FRAYED AND SEVERED AT THE LEFT INBOARD BELLCRANK. PHOTOS AT THE SCENE SHOWRT FLAPS FULL DOWN AND LOCKED. LT FLAPS ARE NOT EXTENDED. A FULL POWER 'GO AROUND' ATTEMPT RESULTED IN A 'NO CONTROL'SITUATION CAUSED BY A SPLIT FLAT CONDITION KNOWN AS ASYMMETRICAL FLAP HAZARD. SUBMITTER STATED THE ANNUAL INSPECTION HAD BEEN COMPLETED A FEW DAYS PRIOR. AIRCRAFT WAS DESTROYED.
8	1975-09-04	Z197524700054	AIRFRAME		2479S		BELLCRANK	INBD FLAP-RT	BROKEN	621	621				INSP/MAINT	OVER 24 MO	CESSNA	337C	3370779	NONE	OTHER	QUANDRANT & BELLCRANK ASSY INBD RIGHT FLAP FAILED,RESULTING IN SPLIT FLAP. CAUGHT BY PILOT ON PREFLT.
(Less significant items below)
47	1977-10-21	Z197729400142	AIRFRAME		2321S		CABLE	RH BELLCRANK	FRAYED	855	855				INSP/MAINT	OVER 24 MO	CESSNA	337B	3370621	NONE	OTHER	BOTH INNER & OUTER WERE IN SAME GROOVE ON THE RH INNER FLAP BELLCRANK CAUSING FR AYING

RELATES TO ENGINE MOUNT
Row	Date Of Report	Operator Control Number	Segment	Date Of Occurrence	Aircraft Registration	Operation Type	Descriptive Name Of Part	Defective Location On Aircraft	Failed Part Condition	Part Total Time	Part Total Time Since Overhaul	Component Manufacturer	Component Manufacturer Model	Component Manufacturer Number	Stage Of Operation	Severity Factor	Aircraft Manufacturer	Aircraft Manufacturer Model	Aircraft Manufacturer Number	Precautionary Procedures	Nature Of Condition	zxcvbRemarkszxcvb
46	1998-04-02	CA970812010	AIRFRAME	1997-07-23		G	TUBE	ENGINE MOUNT	BROKEN	4,165		CONT	IO360C	60071CR	INSP/MAINT		CESSNA	337		NONE	OTHER	(CAN) DURING ANNUAL INSPECTION, IT WAS FOUND THAT A REAR ENGINE MOUNT WAS BROKEN. LOWER RIGHT HAND TUBE 1.5 INCHES BELOW THE WEB. CRACKED THROUGH THE ENTIRE DIAMETER.
32	1994-09-30	94ZZZX5662	AIRFRAME	1994-06-30	83C	G	CHANNEL	FWD ENG MOUNT	CRACKED	2,164	0				INSP/MAINT	UNCOMMON	CESSNA	T337G	P3370114	NONE	OTDER	CRACK FOUND IN RADIUS OF BEND IN CHANNEL THAT MAKES UP THE AFT SIDE OF THE AFT RT ENGINE MOUNT BOX STRUCTURE. TWO OTHER AIRCRAFT WITH ABOUT THE SAME TOTAL HOURS HAD CRACKS IN THE SAME AREA. THE CRACK WAS DISCOVERED DURING ENGINE REMOVAL. THE CRACKS COULD HAVE GONE UNNOTICED IN THE OTHER AIRCRAFT. WITH ENGINES INSTALLED, IT IS A DIFFICULT AREA TO SEE. SUBMITTER SUGGESTS POSSIBLE INCREASED STRESS IN THAT AREA CAUSED CRACKS.
45	1990-08-02	NM079091928	AIRFRAME	1990-06-15	37E	G	MOUNT	REAR ENGINE	CRACKED	1,701	1,701				INSP/MAINT	UNCOMMON	CESSNA	337G	P3370127	NONE	OTHER	REMOVED REAR ENGINE TO REPAIR CASE CRACK. CRACK NOT SEEN IN ENGINE MOUNT DURING INITIAL INSPECTION. AFTER STRIPPING MOUNT FOR OTHER REPAIRS AND PAINTING, CRACK BECAME VISIBLE. SUBMITTER RECOMMENDS THAT AT ANY ENGINE REMOVAL, THE ENGINE MOUNT BE CLEANED AND STRIPPED TO INSPECT FOR CRACKS.
25	1983-05-16	SW63198379642	AIRFRAME		86529	G	MT BRACKET	NO 2 ENG	CRACKED	2,335	2,335				INSP/MAINT	UNCOMMON	CESSNA	T337/	T33701223	NONE	OTHER	PREFLIGHT INSP REVEALED LT REAR ENG MT BRACKET CRACKED APPROX 1.50 INCHES LONG.BRACKET BOLTS TO ENG CASE.
47	1982-10-22	SW63198286179	AIRFRAME		86529	G	MOUNT	NO 2 ENG LF MT	CRACKED	2,257	2,257				INSP/MAINT	UNCOMMON	CESSNA	T337E	T33701223	NONE	OTHER	INSP FOUND NO 2 ENG HAD THE LF ENG MT CRACKED IN CASTING APPEARED TO BE ALMOST TO THE POINT OF COMPLETE SEPARATION.
46	1980-07-14	WP04198074252	AIRFRAME		4CT	G	BRACKET	ENG MOUNT	BROKEN	971	971				INSP/MAINT	UNCOMMON	CESSNA	T337G	P3370004	NONE	VIBRATION/BUFFET	FOUND RT REAR ENG MOUNT BRACKET BROKEN
36	1979-10-10	Z197928300046	AIRFRAME		4BU		MOUNT LEG	AT FIREWALL	BROKEN	468	468				INSP/MAINT	UNCOMMON	CESSNA	P337H	P33770304	NONE	OTHER	REAR ENGINE MOUNT LEG BROKEN WHERE IT ATTACHES TO THE FIREWALL.
41	1979-05-11	Z197913100038	AIRFRAME		2FOR		V BRACE	REAR ENG	BROKEN	2,160	2,160				INSP/MAINT	UNCOMMON	CESSNA	337A	3370258	NONE	OTHER	RT V BRACE BROKEN BETWEEN ENG MT MEMBERS REAR ENG
40	1979-05-07	Z197912700028	AIRFRAME		1ZG		MOUNT	CROSS MEMBER	BROKEN	504	504				INSP/MAINT	UNCOMMON	CESSNA	T337G	P3370265	NONE	OTHER	ON PREFLIGHT INSP.PILOT FOUND CROSS MEMBER AT REAR OF MOUNT BROKEN LOOSE AT 1 EN D & CRACKED AT OTHER END.REPAIRED
16	1978-04-03	Z197809300048	AIRFRAME		1748M		TUBE	ADJ CLUSTER WELD	CRACKED	2,500	2,500				INSP/MAINT	OVER 24 MO	CESSNA	337F	33701348	NONE	OTHER	RT LOWER HORIZONTAL ENGINE MOUNT TUBE CRACKED AND BROKE ONE INCH FROM CLUSTER WE LD.
45	1977-02-07	Z197703800045	AIRFRAME		1293M		MOUNT BRACKET	REAR ENG	CRACKED	22	22				INSP/MAINT	OVER 24 MO	CESSNA	T337/	01293	NONE	OTHER	BRACKET FOUND CRACKED DURING 25 HR INSP ON REAR ENG ATTACHING WEB & ENG MOUNT BOLT.RECOMMEND RETORQUE ALL MT TO ENG
5	1976-10-27	Z197630100033	AIRFRAME		2623S		MOUNT BRACKET	REAR ENGINE	CRACKED	1,276	1,276				INSP/MAINT	OVER 24 MO	CESSNA	337	T3370923	NONE	OTHER	ENG MOUNT BRACKET ON REAR ENG FOUND CRACKED DURING ANNUAL INSP.REAR ENG MOUNT BRACKET HAD BEEN REPLACED ONCE
42	1976-06-21	Z197617300043	AIRFRAME		2623S		MOUNT	LEFT REAR	CRACKED	1,235	100				INSP/MAINT	OVER 24 MO	CESSNA	337	3370923	NONE	NO WARNING INDICATION, OTHER	RT FRONT ENG MOUNT LEG CRACKED TWO THIRDS OF CIRCUMF.THIS MOUNT PUSHER POSN.CRACKED 100 HRS OUT OF OVERHAUL
13	1976-04-30	Z197612100064	AIRFRAME		5311Q		BRACKET		CRACKED	0	0				UNKNOWN	OVER 24 MO	CESSNA	T337D	1093	OTHER	OTHER	ENG MOUNT BRACKED CRACKED BTWN ENG MOUNT BOLTS
41	1975-11-13	Z197531700059	AIRFRAME		6269F		MOUNT	ENG LWR RT	CRACKED	0	0				UNKNOWN	OVER 24 MO	CESSNA	337A	3370269	OTHER	OTHER	REAR ENG MOUNT CROSS MEMBER CRACKED,LWR RT,RPRD PER AC 43.13.1A
11	1975-09-16	Z197525900038	AIRFRAME		1843M		MOUNT	LWR LT CLUSTER	BROKEN	0	0				INSP/MAINT	OVER 24 MO	CESSNA	337	33701443	NONE	OTHER	REAR ENGINE MOUNT BRACE BROKEN AT LOWER LT CLUSTER
14	1975-05-28	Z197514800064	AIRFRAME		6243F		MOUNT	UPR SUPP TUBE	BROKEN	1,125	1,125				INSP/MAINT	OVER 24 MO	CESSNA	337	3370243	NONE	OTHER
40	1975-02-13	Z197504400048	AIRFRAME		11RA		BRACKET	REAR ENGINE	BROKEN	0	107				INSP/MAINT	OVER 24 MO	CESSNA	T337D	T3371143	NONE	OTHER	RT FRNT ENG MOUNT BROKE.
37	1975-02-05	Z197503600049	AIRFRAME		11AR		SUPPORT LEG	LT SIDE ENG	BROKEN	0	0				INSP/MAINT	OVER 24 MO	CESSNA	T337D	3371143	NONE	OTHER	AFT ENG REAR LT SUPPORT LEG CRANKCASE TO DYNAFOCAL MOUNT LEG BROKEN.ENG HAD 107 HRS SINCE REMANUFACTURE.TURBO MT BK
33	1974-11-14	Z197431800073	AIRFRAME		2429S		MOUNT	RT FWD LEG	BROKEN	1,146	1,146				INSP/MAINT	OVER 24 MO	CESSNA	T337/	3370729	NONE	OTHER	RIGHT FORWARD ENGINE MOUNT LEG BROKE AT THE MID POINT OF THE LEG.
43	1974-09-03	Z197424600032	AIRFRAME		8922M		MOUNT	LWR FWD CROSS	BROKEN	750	750				INSP/MAINT	OVER 24 MO	CESSNA	337F	33701322	NONE	OTHER	REAR ENGINE MOUNT BROKEN AT WELD ATTACHING RT END AND LWR FWD CROSSMEMBER TO RES T OF MOUNT.
7	1974-06-11	Z197416200060	AIRFRAME		689CP		REAR ENG MOUNT		CRACKED	0	0				INSP/MAINT	OVER 24 MO	CESSNA	337	0330	NONE	OTHER	LT MLG BRACKET ASSY CRACKED AND MFG DEFECT.
(Less significant items below)
1	1982-12-09	WP02198288135	AIRFRAME		9CM	G	MOUNTS	FRONT ENG	SAGGING	35	35				APPROACH	UNCOMMON	CESSNA	T337G	P3370034	NONE	FLUID LOSS, UNKNOWN	SAGGING ENG MNTS CAUSED OIL FILTER TO BE CHAFED BY NOSE WHEEL WELL STRUCTURE RESULTED IN OIL LOSS.
29	1974-11-08	Z197431200031	AIRFRAME		1840M		ENGINE MOUNT	LWR RT CLUSTER	CRACKED	409	409				INSP/MAINT	OVER 24 MO	CESSNA	337	33701440	NONE	OTHER	REAR ENG MOUNT CRACKED AT LOWER RT CLUSTER.FOUND DURING 100 HR INSP

RELATES TO NOSE GEAR
Row	Date Of Report	Operator Control Number	Segment	Date Of Occurrence	Aircraft Registration	Operation Type	Descriptive Name Of Part	Defective Location On Aircraft	Failed Part Condition	Part Total Time	Part Total Time Since Overhaul	Component Manufacturer	Component Manufacturer Model	Component Manufacturer Number	Stage Of Operation	Severity Factor	Aircraft Manufacturer	Aircraft Manufacturer Model	Aircraft Manufacturer Number	Precautionary Procedures	Nature Of Condition	zxcvbRemarkszxcvb
40	1992-08-10	92ZZZX7528	AIRFRAME	1992-07-08	62NA	G	BOLT	NLG TORQUE LINK	BROKEN	0	0				INSP/MAINT	FREQUENT	CESSNA	T337G	P3370269	NONE	OTHER	DURING ROUTINE MAINTENANCE, FOUND NOSE GEAR STRUT TORQUE LINK BOLT BROKEN OFF AT THE HEAD, AND BOLT HAD WORKED ITS WAY HALF OUT OF THE TORQUE LINK. THIS PART IS HARD TO SEE ON PREFLIGHT.
22	1984-07-23	SW61198481731	AIRFRAME		86452	G	BOLT	NOSE AXLE	BROKEN	1,294	1,294				INSP/MAINT	NEVER	CESSNA	T337E	33701199	NONE	OTHER	NLG AXLE BOLT BROKEN 1/4 INCH FROM HEAD.
20	1979-08-10	Z197922200033	AIRFRAME		444HR		BOLT	NLG WHEEL WELL	SHEARED	16	16				INSP/MAINT	UNCOMMON	CESSNA	T337H	33701900	NONE	OTHER	NLG WOULD NOT FULLY EXTEND DURING RETRACT CHECK.FOUND UPPER TORQUE LINK BOLT SHE ARED & LOWER BOLT ALMOST SHEARED
28	1976-02-17	Z197604800042	AIRFRAME		2MIL		BOLT	NLG UPLOCK	BROKEN	3,000	3,000				APPROACH	OVER 24 MO	CESSNA	337B	6810853	NONE	OTHER	NOSE LANDING GEAR UPLOCK BOLT SHEARED. APPEARED TO HAVE PREVIOUS CRACKED.
(Less significant items below; large number of them because many deal with a plastic spring guide later changed to steel)
2	2009-03-17	2009FA0000191	AIRFRAME	2009-03-08	302A	G	CYLINDER HEAD	MLG STRUT	CRACKED	3,600	800				INSP/MAINT		CESSNA	M337B	M3370331	NONE	FLUID LOSS	WHILE INVESTIGATING A HYD FLUID LEAK IN THE NOSE WHEEL WELL, LOCATED CRACK IN THE RETRACT CYLINDER HEAD BETWEEN THE ATTACH BOLT/BUSHING BOSS AND THE BARREL THREADS, IN THE UPPER RADIUS. THERE WERE NO TOOL MARKS TO CREATE A STRESS RISER, AND NO HARD LANDINGS NOTED. THIS WAS NOT VISIBLE, WITHOUT REMOVING THE RETRACT CYLINDER, AS IT WAS HIDDEN BY THE ATTACH STRUCTURE IN THE WHEEL WELL. APPROX 800 FLIGHT HOURS AND 19 YEARS SINCE LAST CYLINDER REMOVAL/RE-SEAL.
23	2001-08-08	AUS20010418	AIRFRAME	2001-05-04		G	RIVET	FUSELAGE	DAMAGED						INSP/MAINT		CESSNA	337		NONE	OTHER	(AUS) NOSE LANDING GEAR WHEEL PAN/FIREWALL STRUCTURE RIVETS PULLED. FAILED RIVETS LOCATED IN THE AFT LT TOP CORNER.
24	1994-07-05	94ZZZX3620	AIRFRAME	1993-01-04	470DF	G	ROD END	BUNGEE ASSY	BENT	0	0				INSP/MAINT	OCCASIONAL	CESSNA	M337B	337M0254	NONE	OTHER	BENT ROD END ON STEERING BUNGEE ASSY. SUBMITTER SUSPECTS CAUSED BY EXCESSIVE PEDAL PRESSURE AT THE TURN LIMIT OF NOSE WHEEL ASSY.
32	1985-12-05	WP08198588533	AIRFRAME	1985-07-18	5475S	G	SPRING	NLG DWN LOCK	BROKEN	0	0				LANDING	FREQUENT	CESSNA	337B	3370575	NONE	OTHER, VIBRATION/BUFFET	NOSE WHEEL COLLAPSED ON LANDING. FOUND NLG DWN LOCK SPIRNG GUIDE-PLASTIC-BRKN. ME84-1 HAS STEEL REPLACEMENT.
37	1984-11-16	EA22198487608	AIRFRAME		556NA	G	ROD END		DEFECTIVE	0	0				INSP/MAINT	OCCASIONAL	CESSNA	T337B	3370705	NONE	OTHER	NOSE LANDING GEAR STEERING ROD END DEFECTIVE.
35	1984-10-15	NM64198486025	AIRFRAME		1425M	G	GUIDE	NG DOWNLOCK	BROKEN	886	886				APPROACH	UNCOMMON	CESSNA	T337G	P3370162	OTHER	WARNING INDICATION	NO NLG DOWN + LOCK INDICATION. FOUND NLG DOWNLOCK SPRING GUIDE BROKEN.
15	1984-06-20	NM03198479624	AIRFRAME		86255	G	SPRING GUIDE	NLG ACTU	BROKEN	0	0				INSP/MAINT	FREQUENT	CESSNA	T337D	1130	NONE	OTHER	NLG SRING GUIDE EAR BROKEN.
47	1984-01-04	NM61198470106	AIRFRAME		42WA	G	ROD	NWS	BENT	2,750	2,750				TAKEOFF	OCCASIONAL	CESSNA	T337G	P3370205	OTHER	WARNING INDICATION	NLG FAILED TO RETRACT. FOUND NWS ROD BENT PREVENTING STRUT FROM CENTERING.
12	1981-07-15	WP09198184135	AIRFRAME		740M	G	GUIDE SPRING	DOWN LOCK	BROKEN	2,370	2,370				LANDING	FREQUENT	CESSNA	337	3370160	NONE	NO WARNING INDICATION	NOSE GEAR COLLAPSED ON LANDING ROLL. THE NLG DOWN LOCK SPRING GUIDE HAD BROKEN + A POSITIVE DWN + LOCK WAS NOT MADE .
45	1981-05-15	NM67198180467	AIRFRAME		53405	G	SPRING GUIDE	NLG DN LOCK	BROKEN	2,891	2,891				INSP/MAINT	FREQUENT	CESSNA	337G	01602	NONE	OTHER	NO TEXT.
15	1981-02-25	SW99198173966	AIRFRAME		72382	G	GUIDE	NLG DN LK SPG	BROKEN	2,271	2,271				INSP/MAINT	FREQUENT	CESSNA	337G	01572	NONE	OTHER	NOSE GEAR WOULD NOT STAY UP AND LOCKED.
46	1981-01-23	EA11198171274	AIRFRAME		85869	G	PISTON ROD	NLG DOORACTU	BROKE	1,411	1,411	12805135	12805135	1108	INSP/MAINT	UNCOMMON	CESSNA	337D	3371005	NONE	OTHER	NLG DOOR ACTU ROD BROKE OFF APPROX 2 THREADS INSIDE ROD END
16	1980-09-12	WP09198078445	AIRFRAME		1280M	G	SPRING GUIDE	NLG LOCKING	BROKEN	1,550	1,550				INSP/MAINT	FREQUENT	CESSNA	T337E	T3371280	NONE	OTHER	PLASTIC SPRING GUIDE BROKE ON ONE SIDE.
30	1979-09-11	Z197925400007	AIRFRAME		1397L		GUIDE	NLG DWNLOCK	BROKEN EARS	71	71				UNKNOWN	FREQUENT	CESSNA	337H	33701889	NONE	OTHER	NLG DOWNLOCK GUIDE EARS BROKEN
13	1979-08-02	Z197921400037	AIRFRAME		2435S		BRACE	NLG	BENT	458	458				LANDING	FREQUENT	CESSNA	T337B	3370745	OTHER	OTHER	NLG DOWN STOP PLATE BENT
2	1979-06-28	Z197917900064	AIRFRAME		9LF		BRACKET	NLG	CRACKED	863	863				INSP/MAINT	OCCASIONAL	CESSNA	337F	33701327	NONE	OTHER	FOUND NOSE STEERING BRACKET CRACKED FROM LIGHTENING HOLE TO FWD EDGE
42	1979-05-15	Z197913500042	AIRFRAME		1293M		BRACKET	NLG UPLOCK	BROKEN	4,140	4,140				INSP/MAINT	FREQUENT	CESSNA	T337E	01293	NONE	OTHER	FOUND NLG UPLOCK BRACKET BROKEN AFT END CAUSE WEAK BRACKET
17	1979-02-08	Z197903900066	AIRFRAME		7CT		GUIDE SPRING	NLG DN LOCK	BROKEN	0	1,300				INSP/MAINT	FREQUENT	CESSNA	T337G	P3370008	NONE	OTHER	PLASTIC SPRING GUIDE BROKE LETTING NLG COLLAPSE CAUSING DAMAGE TO PROP.
48	1978-12-14	Z197834800043	AIRFRAME		2717X		BRACKET	NLG	BROKE	0	0				TAXI/GRND HDL	OCCASIONAL	CESSNA	337	3370117	NONE	OTHER	NOSE STEERING BRACKET FAILED UNDER NORMAL SERVICE CAUSING LOSS OF NOSE STEERING WHILE TAXING.
32	1978-07-31	Z197821200104	AIRFRAME		25905		SPRING	NLG CENTERING	STRETCHED	2,017	2,017				TAXI/GRND HDL	OVER 24 MO	CESSNA	337	3370890	NONE	OTHER	NLG COLLAPSED AFTER LANDING.FOUND NLG CENTERING SPRING STRETCHED.
21	1978-04-06	Z197809600085	AIRFRAME		32DM		ROD ASSY	STEERING	BENT	2,969	2,969				INSP/MAINT	OVER 24 MO	CESSNA	337	0049	NONE	OTHER
19	1978-04-06	Z197809600083	AIRFRAME		32DB		BUNGEE ASSY	ROD END	BROKEN	0	0				INSP/MAINT	OVER 24 MO	CESSNA	337	0049	NONE	OTHER
40	1976-03-11	Z197607100054	AIRFRAME		86513		EYEBOLT	RT FRT NLG DOOR	BROKEN	1,289	1,289				INSP/MAINT	OVER 24 MO	CESSNA	337E	33701216	NONE	OTHER	BOLT ATTACHMENT TO DOOR HINGE BROKE OFF. DURING PREFLT PILOT NOTICED DOOR HANGIN G DOWN.
14	1975-12-30	Z197536400043	AIRFRAME		2310S		NLG BUMPER	NLG WELL	BENT	1,840	1,840				INSP/MAINT	OVER 24 MO	CESSNA	T337B	0610	NONE	OTHER	NLG BUMPER BENT & DEFORMED AFT CAUSING NOSE GEAR TO MOVE AS RUDDER PRESSURE APPL IED AFTER LIFT OFF.

RELATES TO RUDDER/BRAKE PEDALS AREA
Row	Date Of Report	Operator Control Number	Segment	Date Of Occurrence	Aircraft Registration	Operation Type	Descriptive Name Of Part	Defective Location On Aircraft	Failed Part Condition	Part Total Time	Part Total Time Since Overhaul	Component Manufacturer	Component Manufacturer Model	Component Manufacturer Number	Stage Of Operation	Severity Factor	Aircraft Manufacturer	Aircraft Manufacturer Model	Aircraft Manufacturer Number	Precautionary Procedures	Nature Of Condition	zxcvbRemarkszxcvb
39	2003-01-14	CA021125010	AIRFRAME	2002-11-21		G	BRACKET	RUDDER	CRACKED						INSP/MAINT		CESSNA	337A		NONE	OTHER	(CAN) CRACK FOUND ON BOTH INBOARD RUDDER TORQUE TUBE MOUNTING BRACKETS. THE CRACK BEGAN AT THE AFT END OF THE BRACKET, EXTENDING FORWARD APPROXIMATELY 3-4 INCHES ON THE LT BRACKET AND 1/2 INCH FORWARD ON THE RT BRACKET. THE CRACK OCCURRED AT THE BEND RADIUS ON THE OUTER PIECE OF THE BRACKET.
24	2001-08-08	AUS20010419	AIRFRAME	2001-05-04		G	TORQUE TUBE	RUDDER CONTROL	DAMAGED						INSP/MAINT		CESSNA	337		NONE	OTHER	(AUS) RUDDER PEDAL TORQUE TUBE CLAMP SUPPORT STRUCTURE CRACKED ANDWORKING. LOOSE RIVETS AND DAMAGE CAUSED BY BELLCRANK.
11	2001-05-15	CA010504017	AIRFRAME	2001-04-16		A	SUPPORT BRACKET	RUDDER PEDAL	CRACKED	7,253		CESSNA	337C	3370895	INSP/MAINT		CESSNA	337C		NONE	OTHER	(CAN) DURING A 100 HOUR INSPECTION IT WAS OBSERVED THERE WA A CRACK IN THE ABOVE MENTIONED BRACKET. A NEW BRACKET WAS INSTALLED AND AIRCRAFT RELEASED FOR RETURN TO SERVICE.
40	1998-01-08	98ZZZX154	AIRFRAME	1997-12-26	9739D	G	SUPPORT ASSY	RUDDER BAR	CRACKED						INSP/MAINT		CESSNA	337A	3370466	NONE	OTHER	PILOT COMPLAINED OF INCONSISTENT RUDDER TRIM INPUTS TO MAINTAIN COORDINATED FLIGHT AND 'FUNNY' RUDDER CONTROL INPUTS. INSPECTION REVEALED BOTH CENTER RUDDER BAR SUPPORTS CRACKED ALLOWING RUDDER BAR TO WANDER WHEREVER IT WANTED TO GO. AIRCRAFT HAS HISTORY OF LANDING ACCIDENTS WHEN REGISTERED IN A FOREIGN COUNTRY, BUT THIS IS A NEW DISCREPANCY WITH NO PREVIOUS CONTROL SYSTEM PROBLEMS.
39	1998-01-08	98ZZZX153	AIRFRAME	1997-12-26	9739D	G	SUPPORT ASSY	RUDDER BAR	CRACKED						INSP/MAINT		CESSNA	337A	3370466	NONE	OTHER	PILOT COMPLAINED OF INCONSISTENT RUDDER TRIM INPUTS TO MAINTAIN COORDINATED FLIGHT AND 'FUNNY' RUDDER CONTROL INPUTS. INSPECTION REVEALED BOTH CENTER RUDDER BAR SUPPORTS CRACKED ALLOWING RUDDER BAR TO WANDER WHEREVER IT WANTED TO GO. AIRCRAFT HAS HISTORY OF LANDING ACCIDENTS WHEN REGISTERED IN A FOREIGN COUNTRY, BUT THIS IS A NEW DISCREPANCY WITH NO PREVIOUS CONTROL SYSTEM PROBLEMS.
42	1995-10-20	95ZZZX5770	AIRFRAME	1995-08-07	471DF	G	SUPPORT ASSY	INBD RUD BAR	CRACKED		384				INSP/MAINT		CESSNA	T337B	337M0246	NONE	OTHER	DURING NR 2 PROGRESSIVE INSPECTION, THE MOUNT WAS NOTICED FLEXING DURING RUDDER APPLICATION. THIS BRACKET HAD BEEN REPLACED FOR THE SAME REASON DURING THE ANNUAL ON 5-94. THIS HAS BEEN AN ONGOING PROBLEM WITH ACFT, APPROXIMATELY 6 CHANGES, 13 ACFT IN THE FLEET.
25	1994-07-11	94ZZZX3788	AIRFRAME	1993-12-22	470DF	G	SUPPORT ASSY	RUDDER PEDAL	CRACKED	6,200	0				INSP/MAINT	UNCOMMON	CESSNA	M337B	337M0254	NONE	OTHER	RUDDER PEDAL SUPPORT BRACKETS WERE CRACKED AT FLANGE RADII OF FLANGE TO FIRE WALL STRUCTURE ATTACHMENT - CAUSE IS BELIEVED TO BE TOO MUCH PEDAL PRESSURE WITH FLEXING OF THE STRUCTURE DURING BRAKING AND TURNS. THE CRACK IS APPROXIMATELY ONE-HALF THE LENGTH OF THE FLANGE. THREE A/C THIS YEAR HAVE BEEN CRACKED, ONE LAST YEAR. ALL FOUND DURING ANNUAL. RECOMMEND ONE-TIME INSPECTION OF ALL 337 TYPE A/C.
23	1994-07-05	94ZZZX3619	AIRFRAME	1993-01-04	470DF	G	SUPPORT ASSY	RUDDER BAR	CRACKED	6,171	0				INSP/MAINT	UNCOMMON	CESSNA	M337B	337M0254	NONE	OTHER	BOTH LT AND RT RUDDER BAR SUPPORT BRACKETS ON THIS AIRCRAFT HAVE CRACKED AND WERE LOCALLY REPAIRED. IN ALL CASES, THE CRACKS HAVE BEEN IN THE SAME LOCATIONS. THIS HAS BEEN THE SIXTH A/C OVERALL IN WHICH REPAIRS WERE MADE SO FAR.
22	1994-07-05	94ZZZX3615	AIRFRAME	1993-12-22	473DF	G	SUPPORT ASSY	BRAKE PEDAL	CRACKED	7,044	0				INSP/MAINT	FREQUENT	CESSNA	337B	337M0296	NONE	OTHER	DURING ANNUAL INSPECTION OF THE AIRFRAME, STRUCTURE NOTICED TO MOVE WHEN PEDALS WERE POSITIONED TO THE FULL TRAVEL. SUPPORT BRACKET CRACKED IN THE RADII OF THE MOUNTING FLANGE TO FIREWALL.
21	1994-07-05	94ZZZX3614	AIRFRAME	1993-12-22	467DF	G	SUPPORT ASSY	BRAKE PEDAL	CRACKED	5,801	0				INSP/MAINT	FREQUENT	CESSNA	337B	337M0290	NONE	OTHER	DURING ANNUAL INSPECTION OF THE AIRFRAME, NOTICED STRUCTURE MOVED WHEN PEDALS WERE POSITIONED TO THE FULL TRAVEL. SUPPORT BRACKET WAS CRACKED IN THE RADII OF MOUNTING FLANGE AT THE FIREWALL.
12	1985-05-09	CE65198577004	AIRFRAME		59N	G	SUPPT BRACKET	RH RUDDER PEDAL	BROKEN/CRACKED	2,520	2,520				INSP/MAINT	UNCOMMON	CESSNA	T337H	33701854	NONE	OTHER	BOTH INBOARD RUDDER PEDAL BEARING SUPPORT BRACKETS BROKEN AND CRACKED. TWO SDRS.
11	1985-05-09	CE65198577003	AIRFRAME		59N	G	SUPPORT BRACKET	LH RUDDER PEDAL	BROKEN/CRACKED	2,520	2,520				INSP/MAINT	UNCOMMON	CESSNA	T337H	33701854	NONE	OTHER	BOTH INBOARD RUDDER PEDAL BEARING SUPPORT BRACKETS BROKEN AND CRACKED. TWO SDRS.
8	1985-05-02	CE65198576610	AIRFRAME		88N	G	SUPPORT BRACKET	LEFT INBOARD	CRACKED	2,361	2,361				INSP/MAINT	UNCOMMON	CESSNA	T337H	33701947	NONE	OTHER	LEFT INBOARD RUDDER PEDAL BEARING SUPPORT CRACKED.
3	1985-04-05	SW64198575034	AIRFRAME		714G	G	SUPPORT BRACKET	LT I/B MNT FLNG	CRACKED	5,689	5,689				INSP/MAINT	UNCOMMON	CESSNA	337G	33701728	NONE	OTHER	BOTH LEFT AND RIGHT SUPPORTS WERE CRACKED ALONG RADIUS OF I/B MNTNG FLANGE + AT BRNG BLOCK MNT PLATES. CRACKS ABOUT 2 INCHES LONG.
2	1985-04-05	SW64198575033	AIRFRAME		714G	G	SUPPORT BRACKET	RT I/B MNT FLNG	CRACKED	5,689	5,689				INSP/MAINT	UNCOMMON	CESSNA	337G	33701728	NONE	OTHER	BOTH LEFT AND RIGHT SUPPORTS WERE CRACKED ALONG RADIUS OF I/B MNTNG FLANGE + AT BRNG BLOCK MNT PLATES. CRACKS ABOUT 2 INCHES LONG.
47	1985-01-16	SO64198570822	AIRFRAME		86285	G	BRACKET	CONTR RUD BAR	CRACKED	3,839	3,839				INSP/MAINT	UNCOMMON	CESSNA	337D	3371142	NONE	OTHER	CENTER RUDDER BAR SUPT BRCKTS CRACKED.
8	1981-12-17	GL65198193638	AIRFRAME		5302S	G	BAR SUPPORT	PILOTS RT EDAL	CRACKED	2,200	2,200				NOT REPORTED	UNCOMMON	CESSNA	337	3370402	NONE	OTHER	THE RUDDER TORQUE TUBE SUPPORT RACKED T PILOTS RH PEDAL.
39	1981-04-29	EA03198179364	AIRFRAME		2278X	G	SUPPORT	L-R RUD BAR	CRACKED	2,251	2,251				INSP/MAINT	UNCOMMON	CESSNA	337	3370178	NONE	OTHER	SUSPECT CRACKING CAUSED BY METAL FATIGUE.
28	1980-10-17	WP01198080313	AIRFRAME		2144X	G	SUPPORT	PEDAL TORQ TUBES	CRACKED	3,350	3,350				INSP/MAINT	UNCOMMON	CESSNA	337	3370044	NONE	OTHER	SUPPORTS MOUNTED ON THE FIREWALL AND WHICH HOLDS THE RUDDER PEDAL TORQUE TUBES C RACKED.
18	1978-04-06	Z197809600082	AIRFRAME		32DB		RUDDER BAR	FIREWALL ASSY	CRACKED	2,969	2,969				INSP/MAINT	OVER 24 MO	CESSNA	337	0049	NONE	OTHER
12	1978-03-29	Z197808800043	AIRFRAME				SUPPORT ASSY	FIRE WALL	CRACKED	2,118	2,118				INSP/MAINT	OVER 24 MO	CESSNA	337	0379	NONE	OTHER	BOTH INBOARD RUDDER BAR SUPPORT ASSY FOUND CRACKED APPROX 2 INCHES
13	1977-12-27	Z197736100030	AIRFRAME		2217X		SUPPORT	RUDDER BARS	CRACKED	2,590	2,590				UNKNOWN	OVER 24 MO	CESSNA	337	3370117	NONE	UNKNOWN	PART BADLYCRACK,MAY FAIL,CAUSING LOSS OF USE OF RUDDER,AND NOSE STEARING.
28	1977-09-15	Z197725800079	AIRFRAME		86395		PEDAL SUPPORT	COCKPIT	BROKEN	1,000	1,000				INSP/MAINT	OVER 24 MO	CESSNA	337D	3371171	NONE	OTHER	CUSTOMER COMPLAINED RUDDER TRIM NOT FUNCTIONING PROPERLY. FOUND RUDDER PEDAL SUP PORT.
40	1974-11-22	Z197432600088	AIRFRAME		5367S		SUPPORT	RUDDER BAR	CRACKED	2,003	2,003				UNKNOWN	OVER 24 MO	CESSNA	337A	3370467	NONE	OTHER	BOTH SUPPOORT ASSYS CRACKED AT CNTR RUDDER BAR BEARING ATCH, LT 1513500-13, RT 1 51300-14
(Less significant items below)
38	1980-05-22	SO65198070830	AIRFRAME		1443S	G	PIN	FIREWALL	HANGS	100	100				DESCENT	FREQUENT	CESSNA	337H	33701918	NONE	UNKNOWN	DURING DESCENT IN STEEP RT SPIRAL RUDDER PEDAL HUNG IN FULL FWD POSITION.CLEVIS PIN THAT ATTACHES BRAKE LINK TO RUD

RELATES TO CABIN DOOR
Row	Date Of Report	Operator Control Number	Segment	Date Of Occurrence	Aircraft Registration	Operation Type	Descriptive Name Of Part	Defective Location On Aircraft	Failed Part Condition	Part Total Time	Part Total Time Since Overhaul	Component Manufacturer	Component Manufacturer Model	Component Manufacturer Number	Stage Of Operation	Severity Factor	Aircraft Manufacturer	Aircraft Manufacturer Model	Aircraft Manufacturer Number	Precautionary Procedures	Nature Of Condition	zxcvbRemarkszxcvb
47	1990-08-30	WP099095341	AIRFRAME	1990-05-22	772H	G	ROD ASSEMBLY	FWD TORQUE TUBE	BENT/BROKE	0	0				INSP/MAINT	NEVER	CESSNA	T337G	P3370265	NONE	OTHER	THIS LINK BROKE, IT WOULD NOT ALLOW THE TORQUE TUBE TO ROTATE AND UNLATCH THE ENTRY DOOR. THE PILOT WAS TRAPPED IN THE AIRCRAFT FOR 2.5 HOURS BEFORE A SUCCESSFUL EGRESS COULD BE EXECUTED.
50	1984-01-23	GL14198471491	AIRFRAME		12G	G	DOOR LOCK	UPR CAB DOOR	WIRE BROKEN	1,058	1,058				INSP/MAINT	NEVER	CESSNA	T337G	P3370265	NONE	OTHER	AFT CABIN DOOR LOCK WIRE BROKEN OFF INSIDE OF DOOR.
27	1983-07-15	SW99198381529	AIRFRAME		86106	G	OUTER DOOR SKIN	CABIN DOOR	CORROSION	2,205	2,205				INSP/MAINT	NEVER	CESSNA	337D	1083	NONE	OTHER	FOUND CORROSION ON INNER SURFACE OF OUTER DOOR SKIN, CAUSED BY WATER ABSORBING INTO FIBERBOARD BACKING.
36	1981-04-22	CE64198178906	AIRFRAME		4KP	G	LOCK PIN	UPR DR LATCH	MISSING	1,409	1,409				INSP/MAINT	NEVER	CESSNA	T337G	P3370255	NONE	OTHER	COULD NOT OPEN UPPER CABIN DOOR-FOUND SPRING CLIP AND BALL MISSING FROM LOWER FW D UPPER DOOR LATCH LOCK MECHANISM.
33	1980-05-15	SW66198070281	AIRFRAME		255	G	CASING	CABIN DOOR	SLIPPED	784	784				NOT REPORTED	NEVER	CESSNA	T337G	P3370213	NONE	OTHER	UNABLE TO OPEN CABIN DOOR BECAUSE SPIRAL CASING WORKED DN THRU CLAMP INTO SLEEVE P/N1517120-13 + ACTUATES LOCK PIN.
3	1979-06-28	Z197917900085	AIRFRAME		912JF		ROD END		BENT	127	127		151140048		INSP/MAINT	NEVER	CESSNA	P337H	3370315	NONE	OTHER	UNABLE TO OPEN UPPER CABIN DOOR.FOUND ROD END TO UPPER LATCH BENT WHERE FALURE O CCURRED.
31	1978-11-03	Z197830700104	AIRFRAME		4BZ		LATCH LINK EYE	CABIN DOOR	BROKEN	0	0				INSP/MAINT	NEVER	CESSNA	P337H	P3370308	NONE	OTHER	CABIN DOOR COULD NOT BE OPENED FROM INSIDE DUE TO DOOR LATCH LINKAGE EYE BROKE O FF.
22	1978-10-12	Z197828500029	AIRFRAME		4BX		EYE	CABIN DOOR	BROKEN	82	82				TAXI/GRND HDL	NEVER	CESSNA	P337H	P3370307	NONE	OTHER	CREW UNABLE TO DEPART AC,REQUIRED OUTSIDE ASSISTANCE TO DISASSEMBLE DOOR.FOUND U PPER CABIN DOOR FWD LATCH EYE BROKE
6	1978-03-22	Z197808100028	AIRFRAME		15UC		UPPER DOOR	CABIN	SEPARATED	520	520				CLIMB	OVER 24 MO	CESSNA	T337G	P3370216	UNSCHED LANDING	INFLIGHT SEPARATION	UPPER DOOR BLEW OPEN AND DEPARTED AIRCRAFT AT 8800 FT ALTITUDE.DOOR HAS NOT BEEN LOCATED
18	1977-04-18	Z197710800049	AIRFRAME		255		HOUSING	CABIN DOOR	SLIPPED	312	312				TAXI/GRND HDL	OVER 24 MO	CESSNA	337	P3370213	OTHER	OTHER	CABIN DOOR FRONT CONTROL LOCK CABLE HOUSING SLIPPED DN & LOCK LINKS WOULD NOT DISENGAGE & OPEN DOOR
16	1974-10-01	Z197427400034	AIRFRAME		9CT		SHAFT,JOINT	DRILLED HOLE	FAILED	275	275				INSP/MAINT	OVER 24 MO	CESSNA	T337G	P3370011	NONE	OTHER	UNABLE TO OPEN CABIN DOOR FROM INSIDE OR OUTSIDE. HAD TO REMOVE UPHOLSTERY PANEL S AND PRYED LATCHES OPEN.

RELATES TO MISCELLANEOUS AREAS
Row	Date Of Report	Operator Control Number	Segment	Date Of Occurrence	Aircraft Registration	Operation Type	Descriptive Name Of Part	Defective Location On Aircraft	Failed Part Condition	Part Total Time	Part Total Time Since Overhaul	Component Manufacturer	Component Manufacturer Model	Component Manufacturer Number	Stage Of Operation	Severity Factor	Aircraft Manufacturer	Aircraft Manufacturer Model	Aircraft Manufacturer Number	Precautionary Procedures	Nature Of Condition	zxcvbRemarkszxcvb
29	1988-01-06	SO648870412	AIRFRAME	1987-09-25	53670	G	PULLEY BRKT	UNDER PILOT FLR	BROKEN	1,303	1,303				NOT REPORTED	OCCASIONAL	CESSNA	337G	33701769	NONE	OTHER	BRACKET HAD OUTBOARD CORNER WHERE ATTACH BOLT GOES THROUGH BROKEN OFF. PULLEY WAS FORCED SIDEWAYS BY CABLE TENSION. THE PULLEY WAS STILL TURNING, BUT AT EITHER EXTREME RIGHT OR LEFT CONTROL WHEEL MOVEMENT, THE CABLE WOULD START TO WALK OFF PULLEY. SUBMITTER SUGGEST STRONGER BRACKET, ESPECIALLY AT 90 DEGREE CABLE TURNS.
42	1986-04-24	CE628676242	AIRFRAME	1986-04-01	72446	G	PULLEY BRACKET	UNDER PILOT FLR	BROKEN	255	255				INSP/MAINT	OCCASIONAL	CESSNA	337G	33701587	NONE	OTHER	OWNER REPORTED THAT AILERONS WERE OUT OF RIG. INVESTIGATION SHOWED THAT PULLEY BRACKET BELOW PILOTS FEET. WAS BROKEN, WHICH ALLOWED TENSION TO SLACKEN. CESSNA MULTI-ENGINE SERVICE LETTER ME 76-21 W/REV NR 1 CALLED FOR AN INSPECTION AND POSSIBLE REPLACEMENT OF THE BRACKET WITH NEW P/N 1513883-1. ME-74-5 ALSO MENTIONED THIS PROBLEM. NEITHER SERVICE LETTER APPLIES TO THIS S/N.
23	1978-10-23	Z197829600031	AIRFRAME		53606		PULLEY BRACKET	UNDER FLOOR	BROKEN	470	470				APPROACH	OCCASIONAL	CESSNA	337E	33701735	NONE	FLT CONT AFFECTED	DURING LANDING PILOT HEARD LOUD BANG & BOTH AILERONS DROOPED.INSP FOUND AILERON PULLEY BRACKET BROKEN.

RELATES TO UNIDENTIFIED AREAS
Row	Date Of Report	Operator Control Number	Segment	Date Of Occurrence	Aircraft Registration	Operation Type	Descriptive Name Of Part	Defective Location On Aircraft	Failed Part Condition	Part Total Time	Part Total Time Since Overhaul	Component Manufacturer	Component Manufacturer Model	Component Manufacturer Number	Stage Of Operation	Severity Factor	Aircraft Manufacturer	Aircraft Manufacturer Model	Aircraft Manufacturer Number	Precautionary Procedures	Nature Of Condition	zxcvbRemarkszxcvb
43	2007-11-02	UIEA200700462	AIRFRAME	2007-10-24	424	A	SKIN	NR 4 NACELLE	CRACKED						INSP/MAINT		CESSNA	T337G	P3370259	NONE	OTHER	NR 4 PYLON LT SKIN WAS FOUND CRACK AT 483AL ACCESS PANEL CUTOUT LOWER AFT CORNER.
15	1985-05-24	WP08198578015	AIRFRAME		5CU	G	BELLCRANK ASSY		TORN LOOSE	1,618	1,618				INSP/MAINT	OCCASIONAL	CESSNA	T337G	P3370066	NONE	OTHER	DURING ANNUAL INSPECTION FOUND BELLCRANK ASSEMBLY TORN LOOSE FROMSTRUCTURE AND ROD ASSEMBLY BENT.
14	1985-05-24	WP08198578014	AIRFRAME		5CU	G	ROD ASSY		BENT	1,618	1,618				INSP/MAINT	OCCASIONAL	CESSNA	T337G	P3370066	NONE	OTHER	DURING ANNUAL INSPECTION FOUND BELLCRANK ASSEMBLY TORN LOOSE FROMSTRUCTURE AND ROD ASSEMBLY BENT.
30	1981-04-06	CE64198177405	AIRFRAME		159N	G	BRACKET	LEFT	BROKEN	4,179	4,179				INSP/MAINT	OCCASIONAL	CESSNA	337G	33701668	NONE	OTHER	BRACKET AT FIREWALL + FLOOR-INBOARD EAR BROKE OFF AT BOLT HOLE.
31	1980-10-27	WP04198080745	AIRFRAME		463DF	G	HALE OUTER	BEADED AREA	CRACKED	0	0				INSP/MAINT	FREQUENT	CESSNA	337B	337M0325	NONE	OTHER	SIX INCH RADIAL CRACK FOUND INSIDE THE BEADED AREA.
1	1980-07-28	EA62198075252	AIRFRAME		1346L	G	BRACKET ASSY	OTBD LWR BELLCRK	BROKEN	0	0				INSP/MAINT	COMMON	CESSNA	T337H	33701838	NONE	OTHER	DAMAGED IN WIND STORM.
28	1979-04-03	Z197909300062	AIRFRAME		1342L		SKIN	TAIL SECTION	CORRODED	107	107				INSP/MAINT	UNCOMMON	CESSNA	337	3371834	NONE	OTHER	C-W AD79-05-02 AND FOLLOWING REMOVAL OF ELT LITHIUM BATTERY-FOUND CONSIDERABLE C ORROSION IN ELT MOUNTING AREA.
46	1978-12-04	Z197833800104	AIRFRAME		53606		BRACKET	PULLEY-FIREWL	BROKEN	470	470				INSP/MAINT	OCCASIONAL	CESSNA	337	01735	NONE	OTHER	BOTH EARS OF PULLEY BRACKET BROKEN OFF.
50	1978-08-28	Z197824000112	AIRFRAME		53475			RT SIDE PANEL	BLOWN OUT	0	0				INSP/MAINT	OVER 24 MO	CESSNA	337	33701649	NONE	OTHER	RT SIDE PANEL CRACKED ALL AROUND COLLECTOR INLET
20	1978-04-06	Z197809600084	AIRFRAME		32DB		CHANNEL ASSY	BOLT HOLE	WORN	2,969	2,969				INSP/MAINT	OVER 24 MO	CESSNA	337	0049	NONE	OTHER
35	1977-10-05	Z197727800038	AIRFRAME		72247			RH OUTBD	CRACKED	0	0				INSP/MAINT	OVER 24 MO	CESSNA	337G	33701545	NONE	OTHER	CRACK OCCURRED AT DENT & APPARENTLY CAUSED BY VIBRATION
38	1977-01-20	Z197702000068	COMPONENT		1752M		CABLE	TURNBUCKLE END	FRAYED	1,066	1,066				INSP/MAINT	OVER 24 MO	CESSNA	337	33701352	NONE	OTHER	COULD HEAR AIL CABLE STRANS RUBBING ON PULLEY BRACKET.INSP REVEALED CABLE HAD FRAYED FROM RUBBING PULLEY BKT
18	1974-10-08	Z197428100050	AIRFRAME		9CT		LATCH DRIVE	THRU HOLE	FAILED	0	0				INSP/MAINT	OVER 24 MO	CESSNA	337		NONE	OTHER	END OF LATCH DRIVE SHEARED WHERE ENGAGED BY AFT TORQUE TUBE. HOLE DRILLED IN DRI VE WEAKEN SAME.
8	1974-09-13	Z197425600050	AIRFRAME		5499S		BACKPLATE	MT FLANGE	CRACKED	1,779	1,779				INSP/MAINT	OVER 24 MO	CESSNA	337	3370599	NONE	OTHER	CRACKED AROUND MOUNTING FLANGE-BACKPLATE
7	1974-09-13	Z197425600049	AIRFRAME		5499S		TORQUE PLATE	OUTER FLANGE	CRACKED	1,741	1,741				INSP/MAINT	OVER 24 MO	CESSNA	337	3370599	NONE	OTHER	CRACKED FROM OUTER FLANGE TO HOLE.

ALL CESSNA 336 "STRUCTURAL" SDRs SHOWN BELOW (not grouped by aircraft area, newest first)

Row	Date Of Report	Operator Control Number	Segment	Date Of Occurrence	Aircraft Registration	Operation Type	Descriptive Name Of Part	Defective Location On Aircraft	Failed Part Condition	Part Total Time	Part Total Time Since Overhaul	Component Manufacturer	Component Manufacturer Model	Component Manufacturer Number	Stage Of Operation	Severity Factor	Aircraft Manufacturer	Aircraft Manufacturer Model	Aircraft Manufacturer Number	Precautionary Procedures	Nature Of Condition	zxcvbRemarkszxcvb
36	2003-04-14	CA030227004	AIRFRAME	2003-02-25		A	CONTROL CABLE	TE FLAPS	FAILED						NOT REPORTED		CESSNA	336		OTHER	OTHER	(CAN) OPERATOR EXPERIENCED A ASYMMETRIC FLAP CONDITION DURING LANDING CAUSED BY THE FAILURE OF A FLAP CABLE. THE INBOARDRIGHT HAND FLAP CABLE FAILED AT A POINT WHERE THE CABLE STARTS TO BEND AROUND THE INBOARD RIGHT HAND FLAP BELLCRANK. THIS AREA OF THE CABLE CAN ONLY BE INSPECTED WITH THE REMOVAL OF THECABLE AND/OR BELLCRANK
35	2002-04-25	2002FA0000525	AIRFRAME	2002-04-01	108RJ	G	CABLE	RT BELLCRANK	BROKEN	2,892					APPROACH		CESSNA	336	3360067	OTHER	FLT CONT AFFECTED	ON FINAL APPROACH, AIRCRAFT EXPERIENCED A SPLIT FLAP CONDITION, CAUSED BY BROKEN CABLE ASSEMBLY. FLAP ACTUATOR INBOARD(PN 14601007). CABLE HAD BROKEN ON RIGHT SIDE, 1 INCH FROM CABLE END, AT BELLCRANK ENTRY POINT. INSPECTION OF LEFT SIDE FLAP CABLE ASSEMBLY WITH A MIRROR, REVEALED NO NOTICEABLE DAMAGE. ALL CABLES FOR RIGHT AND LEFT FLAP SYSTEM WERE REMOVED AND INSPECTED. LEFT CABLE ASSEMBLY. FLAP ACTUATOR INBOARD, WAS FRAYED AT SAME CONTACT POINT AS RIGHT, (NOT DETECTED BY MIRROR INSPECTION). DUE TO AREA OF BREAKAGE, HAVING LIMITED POSSIBLY FOR VISUAL INSPECTION, RECOMMEND SET TIME PERIOD FOR CABLES TO BE REMOVED FOR INSPECTION OR TIME IN SERVICE REQUIREMENTS SET FOR REMOVAL.
33	2000-04-06	20000331SH019	AIRFRAME	2000-03-03	3856U	G	SHOCK MOUNT	FIREWALL	FAILED	1,841					TAXI/GRND HDL		CESSNA	336	33610156	OTHER	OTHER	DIFFICULT TO INSPECT. PILOT HEARD AND NOTICED COWL RUBBING PROPELER SPINNER DURING SHUT DOWN AT FUEL PIT AT MADERA AIRPORT. (X)
30	1984-12-19	NE65198489369	AIRFRAME		3823U	G	CABLE	LT WING	FRAYED	26,000	26,000				INSP/MAINT	UNCOMMON	CESSNA	336	3360123	NONE	OTHER	LEFT FLAP CABLE STRANDS BROKEN. APPROXIMATELY 75 PERCENT OF STRANDS BROKEN.
29	1984-12-19	NE65198489368	AIRFRAME		3823U	G	CABLE	RT WING	BROKEN	26,000	26,000				APPROACH	UNCOMMON	CESSNA	336	3360123	OTHER	FLT CONT AFFECTED	RIGHT FLAP FAILED TO FULLY EXTEND. FOUND INBOARD CABLE BROKEN AT 90 DEGREE BEND AT INBOARD BELLCRANK.
27	1981-09-09	WP02198188042	AIRFRAME		1797Z	G	MOUNT	LT FRNT MOUNT	CRACKED	1,818	1,818				INSP/MAINT	UNCOMMON	CESSNA	336	3360097	NONE	OTHER	NO TEXT
24	1979-10-03	Z197927600055	AIRFRAME		3850U		HORIZ FIREWALL	UNDER EXH	CRACKED	0	0				UNKNOWN	NEVER	CESSNA	336	3360150	NONE	OTHER	HORIZONTAL FIREWALL ASSY CRACKED ALONG ANGLE BRACKET DIRECTLY UNDER EXHAUST-REAR ENGINE.
20	1977-03-02	Z197706100026	AIRFRAME		3844U		MOUNT	REAR ENG	CRACKED	748	748				INSP/MAINT	OVER 24 MO	CESSNA	336	3360144	NONE	OTHER	DURING ANNUAL INSP FOUND RT FRONT ENG MOUNT BROKEN & RT REAR ENG MOUNT CRACKED
19	1977-03-02	Z197706100024	AIRFRAME		3844U		BRACKET	FORWARD ENG	BROKEN	748	748				INSP/MAINT	OVER 24 MO	CESSNA	336	3360144	NONE	OTHER	DURING ANNUAL INSP RT FRONT ENG MOUNT BROKEN & RT REAR ENG MOUNT CRACKED
16	1976-09-27	Z197627100035	AIRFRAME		1702Z		TANK ASSY SUMP	LEFT TAIL BOOM	HOLE CHAFED	2,191	2,191				INSP/MAINT	OVER 24 MO	CESSNA	336	3360002	NONE	OTHER	ELEVATOR CONTROL CABLES CHAFED THRU TOP OF SUMP TANK
6	1975-01-23	Z197502300072	AIRFRAME		336JL		MT LEG	RT LEG	BROKEN	1,386	1,386				UNKNOWN	OVER 24 MO	CESSNA	336	0181	NONE	OTHER	RT REAR ENG MOUNT LEG BROKEN

1. ConsultResearch Inc. is a 9-year-old Delaware corporation based in South Florida. Its principal business is providing consulting and research services to high-tech firms.

2. Ernie Martin has an MS degree in Mechanical Engineering from Caltech, over 30 years experience in aerospace and aviation, has consulted for various companies (including GE), and has served as an advisor to several government agencies in the U.S.and abroad. In addition, Mr. Martin has piloted and owned 337 Cessna (Skymaster) aircraft for over 10 years (he is on his second one), has participated in all maintenance of said aircraft (including annual inspections), has this Website dedicated to engineering, maintenance and operational aspects of the aircraft, and is a Webmaster of www.337Skymaster.com, which has an active Message Board giving Skymaster owners the opportunity to discuss any aicraft related issue.