Lycoming O-235-L2C

Service difficulty reports · 521

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Query with SQL
duckdb -csv -c "SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy
  FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet'
  WHERE engine_model_key = 'O235L2C'
  ORDER BY difficulty_date DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

SDR 97ZZZX2110Connecting Rod · detachedPILOT EXPERIENCED RPM DROP, LOSS OF OIL PRESSURE, AND ROUGHNESS. LANDED ON CITY STREET. NO AIRCRAFT DAMAGE. FOUND OIL APPARENTLY EXHAUSTED THROUGH CRANKCASE BREATHER. NR 4 CYLINDER PISTON BURNED THROUGH AFT SIDE UNDER RINGS .3750 INCH HOLE. NR 3 CYLINDER Apr 28, 1997 · N757CH · Cessna 152 · Reciprocating Engine Power SectionSDR 97ZZZX2111Piston · burnedPILOT EXPERIENCED RPM DROP, LOSS OF OIL PRESSURE, AND ROUGHNESS. LANDED ON CITY STREET. NO AIRCRAFT DAMAGE. FOUND OIL APPARENTLY EXHAUSTED THROUGH CRANKCASE BREATHER. NR 4 CYLINDER PISTON BURNED THROUGH AFT SIDE UNDER RINGS .3750 INCH HOLE. NR 3 CYLINDER Apr 28, 1997 · N757CH · Cessna 152 · Reciprocating Engine Cylinder SectionSDR CA970507010Bar · broken(CAN) DURING A PRACTICE SPIN RECOVERY, NO RIGHT RUDDER CONTROL WAS AVAILABLE FROM THE LEFT SEAT POSITION. THE AIRCRAFT WAS FLOWN FROM THE RIGHT SEAT AND LANDED SAFELY. MAINTENANCE FOUND THE LEFT SIDE RIGHT RUDDER PEDAL BROKEN OFF THE TORQUE TUBE BELOW THE WEApr 23, 1997 · Cessna A152 · Rudder Control SystemSDR 97ZZZX1917Lockplate · failedSEE LYCOMING O-235 SERIES PARTS CATALOG PC-302, FIGURE 3, INDEX 9. WHILE TROUBLESHOOTING EXCESSIVE MAGNETO DROP AND INSUFFICIENT STATIC RPM, DISCOVERED SCREW (STD 2213) HAD BACKED OUT OF CRANKSHAFT. THE LOCKPLATE EARS WERE FOUND IN THE OIL SUMP; THE CRANKSHAFApr 17, 1997 · N4863H · Cessna 152 · Reciprocating Engine Power SectionSDR 97ZZZX2032Carburetor · jet blockedAIRCRAFT ENGINE LOST POWER FROM PARTIAL OBSTRUCTION OF MAIN JET WHICH FEEDS DISCHARGE NOZZLE. MATERIAL APPEARS TO HAVE BUILD-UP OF SEDIMENT SCALE. RECOMMEND INTERNAL BOWL INSPECTION OF CONDITION AT EACH 2,000-HOUR OPERATION.Apr 16, 1997 · N2585B · Piper PA38112 · Fuel Control/Reciprocating EnginesSDR 97ZZZX1954Carburetor · fod plugAIRCRAFT LOST POWER DURING LOCAL FLIGHT. STUDENT PILOT COULD ONLY GET 1200/1400 RPM'S, BUT MADE IT BACK TO AIRPORT. AFTER CHECKING FUEL STRAINERS, PROBLEM APPEARED TO BE IN CARBURETOR. DISASSEMBLY REVEALED A SMALL INSECT IN THE NOZZLE POWER JET ASSEMBLY. TApr 1, 1997 · N68148 · Cessna 152 · Fuel Control/Reciprocating EnginesSDR 97ZZZX2042Pushrod · loose endRUN-OUT CORE ENGINE THAT WAS DISASSEMBLED FOR PUSHRODS FOR C/W AD 95-3-10. THIS ENGINE HAD ONE SUPERIOR AIR PARTS PUSHROD WITH LOOSE END.Apr 1, 1997 · Cessna 152 · Reciprocating Engine Cylinder SectionSDR 97ZZZX1063Cylinder · deterioratedINSTALLED 4 NEW CYLINDERS ON OVERHAULED ENGINE. COMPRESSION LOSS STARTED AT ABOUT 300 HOURS THROUGH RINGS AND EXHAUST VALVE SEAT. PULLED CYLINDERS, FOUND BADLY HEATED EXHAUST STEM AND EXHAUST SEAT. EXHAUST VALVES ERODED AND BADLY PITTED. INSTALLED ADDITIONFeb 24, 1997 · N4635L · Cessna 152 · Reciprocating Engine Cylinder SectionSDR 97ZZZX798Cylinder · failedEXHAUST VALVE IN CYLINDER NR 3 BROKE AT STEM, INGESTING INTO CYLINDER, CREATING A HOLE IN THE PISTON. PIECES OF VALVE AND PISTON ENTERED ENGINE, CONTAMINATING THE OIL. AN OFF AIRPORT LANDING WAS MADE WITHOUT INCIDENT. AFTER TEAR DOWN, THE CONNECTING ROD WASJan 28, 1997 · N6599B · Cessna 152 · Reciprocating Engine Cylinder SectionSDR 97ZZZX824Valve · wornINVESTIGATION FOR A PROGRESSIVE DETERIORATION OF ENGINE FOUND EXCESSIVE WEAR ON VALVE STEMS, VALVE SEATS DEFECTIVE, RING AND PISTON WEAR EXCESSIVE. SUBMITTER STATES ENGINE WOULD NOT MAKE 2,400 TBO. ENGINE OIL CHANGED AT 50-HOUR INTERVALS. PHILLIPS 20W50XC OJan 21, 1997 · N4635L · Cessna 152 · Reciprocating Engine Cylinder SectionSDR 96ZZZX6089Push Rod · bentPILOT NOTED A SUDDEN ROUGHNESS IN THE ENGINE FOLLOWED BY A 200-300 RPM LOSS. MADE A SAFE EMERGENCY LANDING. DISPATCHED A MECHANIC TO DETERMINE CAUSE. THE INTAKE PUSHROD AND TUBE WERE SEVERELY BENT. THE LOWER SPARK PLUG WAS BADLY LEAD FOULED. SUSPECT CAUSENov 9, 1996 · N38PT · Piper PA38112 · Reciprocating Engine Cylinder SectionSDR 96ZZZX5424Push Rod · chafedUNDER NORMAL OPERATING CONDITIONS, REMOVED NR 1 CYLINDER EXHAUST SIDE PUSH ROD AND NOTICED SHINEY CHAFE MARK. THE CAUSE IS UNKNOWN. THERE WAS NO DENT IN THE PUSH ROD TUBE. SUBMITTER STATED THIS IS THE THIRD OCCURRENCE ON THE O-235 ENGINE AT THE NR 1 CYLINDEOct 17, 1996 · N25813 · Cessna 152 · Reciprocating Engine Cylinder SectionSDR 96ZZZX5498Engine · making metalDURING OIL CHANGE, REMOVED AND CUT OPEN OIL FILTER, FOUND COMPLETELY CONTAMINATED WITH NONFERROUS MATERIAL. APPEARED TO BE ALUMINUM. LYCOMING NOTIFIED, INFORMED OUR SHOP THAT MATERIAL PROBABLY WAS PISTON WRIST PIN OUTER BUSHINGS. AIRCRAFT GROUNDED, WAITING Oct 16, 1996 · N93772 · Cessna 152 · Reciprocating Engine Cylinder SectionSDR 96ZZZX4382Cylinder · crackedTAKEOFF ABORTED FOR LOSS OF POWER/ROUGH RUNNING ENGINE. POST-FLIGHT MAINTENANCE INSPECTION REVEALED 3 INCH HAIR LINE CRACK RUNNING CIRCUMFERENTIALLY, BETWEEN NR 14 AND NR 15 FIN (COUNTING DOWN FROM TOP) OF NR 2 CYLINDER. SMALL BURN AREA OBSERVED ON NR 4 CYLIAug 20, 1996 · N46758 · Cessna 152 · Reciprocating Engine Cylinder SectionSDR 96ZZZX4287Valve · failedEXHAUST VALVE FAILURE, 200 HOURS AFTER CYLINDER OVERHAUL. YELLOW TAG INDICATES CYLINDER WAS REBUILT USING SERVICEABLE PARTS. REBUILDER WAS CONTACTED, BUT COULD NOT DETERMINE TOTAL NUMBER OF HOURS ON VALVE WHEN INSTALLED. LYC SB NR 301B STATES EXHAUST VALVES Aug 14, 1996 · N33BA · Piper PA38112 · Reciprocating Engine Cylinder SectionSDR CA960909037Mount · cracked(CAN) DURING MAINTENANCE A CRACK WAS FOUND AT THE WELD POINT WERE THE TUBE INTERSECTS THE LOWER OLEO STRUT CLAMP. RIGHT HAND TUBE WAS ESTIMATED WITH 50 PERCENT GOOD WELD.Aug 13, 1996 · Cessna 152 · Engine Mount SectionSDR CA960827015Bushing · loose(CAN) HESITANT ACCELERATION OF THE ENGINE CAUSED BY THE PLAY IN THE BUSHING ALLOWING FUEL LEAKAGE WHEN FULL POWER WAS APPLIED FROM IDLE. THIS CONDITIONN WAS NOTICED DURING INSPECTION OF THE OPERATION OF THE THROTTLE, THE LOSS OF FUEL WAS THROUGH THE THROTTLE BJul 26, 1996 · Cessna 152 · Fuel Control/Reciprocating EnginesSDR 96ZZZX3928Spark Plug · fouledWHILE FLYING, PILOT EXPERIENCED PARTIAL LOSS OF ENGINE RPM AND MADE A PRECAUTIONARY LANDING IN A FIELD. UPON INVESTIGATION, FOUND THE BOTTOM SPARK PLUG IN NR 4 CYLINDER WAS NOT GAPPED PROPERLY. A PIECE OF CARBON GOT STUCK BETWEEN THE ELECTRODES OF THE SPARK Jul 22, 1996 · N2416B · Piper PA38112 · Spark Plug/IgniterSDR 96ZZZX3862Elbow · failedELBOW P/N AN915-1D WAS INSTALLED IN THE OIL PRESSURE/HOBBS SWITCH SYSTEM OFF THE BACK OF THE ACCESSORY CASE. THE INSTALLATION OF THE HOBBS PRESSURE SWITCH WAS NOT DONE IAW THE MANUFACTURERS IPC. THE SWITCHES WERE NOT INSTALLED AND SUPPORTED CORRECTLY. AFTERJul 18, 1996 · N2606L · Piper PA38112 · Reciprocating Engine Oil SystemSDR 96ZZZX3929Carburetor · blockagePARTIAL POWER LOSS. FINGER SCREEN WAS FOUND PARTIALLY FILLED WITH A LINT-LIKE SUBSTANCE TO THE POINT THAT FUEL FLOW WAS RESTRICTED. THE FUEL SYSTEM WAS CHECKED BY DRAINING FUEL FROM SUMPS, GASCOLATOR, FUEL LINE, CARBURETOR FLOAT BOWL. NO FURTHER CONTAMINATIJul 1, 1996 · N3281R · Cessna 152 · Fuel Control/Reciprocating EnginesSDR 96ZZZX5301Clamp · crackedDURING INSPECTION, FOUND SIX EXHAUST CLAMP HALVES CRACKED. SUBMITTER SUSPECTS HIGH TOTAL TIME AND CORROSION OF EXHAUST PARTS.Jun 21, 1996 · N5249P · Cessna 152 · Engine Collector/Tailpipe/NozzleSDR 96ZZZX5948Pushrod · wornDURING 100-HOUR INSPECTION, NOTICED FOUR PUSHROD TUBES WERE DENTED. UPON FURTHER INVESTIGATION, FOUND THAT THREE OF THE FOUR PUSHRODS WERE WORN DUE TO RUBBING ON THE PUSHROD SHROUD. THE THREE PUSHRODS WERE WORN FROM 25 PERCENT TO 80 PERCENT THROUGH WALL THICJun 21, 1996 · N5249P · Cessna 152 · Reciprocating Engine Cylinder SectionSDR AU961078Carburettor · faulty(AUS) CARBURETTOR SUSPECT FAULTYJun 18, 1996 · Cessna 152 · Fuel Control/Reciprocating EnginesSDR 96ZZZX3343Cylinder · helicoil failedLOWER SPARK PLUG HELICOIL BLEW OUT ON NR 3 CYLINDER RESULTING IN LOSS OF THAT CYLINDER COMRPESSION AND LOSS OF ENGINE POWER. AIRCRAFT LANDED ON HIGHWAY WITHOUT INCIDENT. SUSPECT CAUSE: OVERTORQUE OR UNDERTORQUE OF SPARK PLUG ALLOWING PLUG TO MOVE IF UNDERTOJun 17, 1996 · N93069 · Cessna 152 · Reciprocating Engine Cylinder SectionSDR 96ZZZX3437Gear · brokenFOUND BROKEN IDLER GEAR IN THE ENGINE THAT DRIVES THE MAGNETO.Jun 13, 1996 · N5109B · Cessna 152 · Reciprocating Engine Rear SectionSDR AU961022Cylinder · cracked(AUS) ENGINE CYLINDER CRACKED FROM EXHAUST VALVE SEAT THROUGH SPARK PLUG HOLEJun 12, 1996 · Piper PA38112 · Reciprocating Engine Cylinder SectionSDR 96ZZZX3425Hose · softDURING ANNUAL INSPECTION, OIL COOLER HOSES WERE FOUND SOFT AND STICKY. HOSES WOULD NOT HAVE GONE ANOTHER YEAR. HOSES HAD BEEN REPLACED 5 YEARS AGO AND HAD ABOUT 250 HOURS ON THEM. INSTALLER REPLACED HOSES AND INSTALLED FIRE SHIELD ON THEM. INSTALLER RECOMMJun 6, 1996 · N69269 · Cessna 152 · Engine Oil Distribution (Airframe Furnished)SDR 96ZZZX3426Seal · looseOUTER CIRCUMFERENCE OF SEAL IS NOT A TIGHT FIT TO THE CRANKCASE. AFTER SEAL IS INSTALLED, SEAL IS ABLE TO ROTATE. NO SEALANT IS RECOMMENDED IN THE OVERHAUL OR SERVICE MANUALS, PN 13792 AND SL 13792 SEALS.Jun 1, 1996 · N67658 · Cessna 152 · Reciprocating Engine Power SectionSDR 96ZZZX3683Tube · hole chafedINSPECTION FOUND WIRING FOR ALTERNATOR MISROUTED, WORE HOLE IN OIL RUNBACK TUBE CAUSING OIL LEAK.Jun 1, 1996 · N69082 · Cessna 152 · Reciprocating Engine Oil SystemSDR 96ZZZX2856Valve · pittedEDGE OF INTAKE VALVE APPEARS TO BE BREAKING OFF. EDGE IS ALSO CRACKED IN SEVERAL PLACES. VALVE FACE HAS PITTING ON ENTIRE SEALING SURFACE. METAL ON VALVE APPEARS TO HAVE CONTAMINATES UPON INVESTIGATION WITH 30X MAGNIFIER.May 14, 1996 · N5120H · Cessna 152 · Reciprocating Engine Cylinder SectionSDR 96ZZZX3004Valve · failedINSTRUCTOR AND STUDENT WERE FLYING APPROXIMATELY 5 MILES FROM AIRPORT WHEN THE ENGINE FAILED. BY ADJUSTING MIXTURE, THE INSTRUCTOR WAS ABLE TO GET THE ENGINE RUNNING AGAIN (1,600 RPM) WHICH GOT THEM BACK TO THE AIRPORT. THE ENGINE WAS GIVEN A COMPRESSION CHEMay 3, 1996 · N6132H · Cessna 152 · Reciprocating Engine Cylinder SectionSDR AU960432Carburetor · contaminated(AUS) CARBURETTOR BOWL AND VENTURI CONTAMINATED - FLOAT MOUNTING SHAFT SLIGHTLY WORNMar 30, 1996 · Cessna 152 · Fuel Control/Reciprocating EnginesSDR 96ZZZX2036Piston · brokenENGINE WAS 'REMANUFACTURED' BY LYCOMING, DATED 12-13-90. REMOVAL OF NR 3 CYLINDER TO INVESTIGATE AN OIL FOULING PROBLEM REVEALED A BROKEN PISTON. PISTON SKIRT HAD BROKEN OFF ON THRUST SIDE (TOP) OF PISTON BETWEEN THE PISTON PIN BOSSES AND UP TO OIL CONTROL RMar 26, 1996 · N69265 · Cessna 152 · Reciprocating Engine Cylinder SectionSDR 96ZZZX1534Float · crackedCARBURETOR FLOAT FILLED WITH FUEL AND SANK IN-FLIGHT RESULTING IN ENGINE STOPPAGE AND FORCED LANDING. FLOAT WAS IN C/W AD 93-19-04. FLOAT CRACKED AND FILLED WITH FUEL. RECOMMEND RE-ENGINEERED FLOAT NOT PRONE TO CRACKING.Mar 22, 1996 · N5366B · Cessna 152 · Fuel Control/Reciprocating EnginesSDR AU960331Carburettor · contaminated(AUS) CARBURETTOR MIXTURE/CUTOFF VALVE CONTAMINATED BY TWO LUMPS OF BROWN PARTICLES APPROXIMATELY 3MM (0.118IN) IN DIAMETER -INVESTIGATION FOUND CORROSION IN THE CARBURETTOR AND FUEL FILTER ASSEMBLIES AND THE PARTICLES INDICATE THAT THEY ARE THE RESULT OFCORRMar 17, 1996 · Cessna A152 · Fuel Control/Reciprocating EnginesSDR AU960240Spark Plug · fouled(AUS) BOTTOM SPARK PLUGS IN ENGINE FOULEDMar 1, 1996 · Cessna 152 · Spark Plug/IgniterSDR CA960311101Push Rod · mushroomed(CAN)WHILE CARRYING OUT TEXTRON LYCOMING SERVICE INSTRUCTION #1068A, #4 EXHAUST PUSH ROD MUSHROOMED ON OUTER END, ALL OTHER PUSH RODS OK. AD 95-03-10 NOT APPLICABLE BY ENGINE SERIAL NUMBER AND PUSH ROD PART NUMBER.Mar 1, 1996 · Cessna 152 · Reciprocating Engine Cylinder SectionSDR 96ZZZX2159Valve · stuckAIRCRAFT WAS ON TRAINING FLIGHT AFTER PERFORMING ROUTINE MANEUVERS. ENGINE BEGAN TO RUN ROUGH. A FORCED OFF-FIELD LANDING WAS MADE WITHOUT DAMAGE TO AIRCRAFT, HOWEVER, INSPECTION ON ENGINE REVEALED STUCK VALVE (EXHAUST) ON NR 1 CYLINDER.Feb 23, 1996 · N757CM · Cessna 152 · Reciprocating Engine Cylinder SectionSDR 96ZZZX941Pushrod · failedAIRCRAFT CRASHED AFTER TAKEOFF. POST-CRASH INSPECTION REVEALED NR 4 CYLINDER EXHAUST PUSHROD BROKEN AT VALVE END. NR 4 EXHAUST VALVE NOT IN OPERATION DUE TO BREAK OF PUSHROD. AD 80-25-02 AND AD 95-03-10 WERE ISSUED PERTAINING O-235 PUSHRODS. TWO OTHER PUSHFeb 20, 1996 · N6110Q · Cessna 152 · Reciprocating Engine Cylinder SectionSDR 96ZZZX775Pushrod · ball separation370 HOURS AFTER OVERHAUL, ENGINE VIBRATION WAS DETERMINED TO BE CAUSED BY BALL END SEPARATION FROM PN 73806-85 PUSHROD. PUSHROD WAS REPLACED AND ENGINE VIBRATION WAS BACK TO NORMAL. AD'S 80-25-02R2 AND 95-03-10 DO NOT PERTAIN TO THESE PUSHRODS.Feb 1, 1996 · Reciprocating Engine Cylinder SectionSDR 96ZZZX786Pushrod · wrong partENGINE WAS OVERHAULED BY FACTORY 2-20-95. DURING STC'D CONVERSION PRIOR TO INSTALLATION IN AIRCRAFT, ALL EIGHT PUSHRODS WERE FOUND TO BE P/N 73806 'V' PUSHRODS. SUBMITTER STATED AD 95-03-10 DOES NOT COVER THIS ENGINE (BUT SHOULD). FACTORY WAS NOTIFIED AND RFeb 1, 1996 · Reciprocating Engine Cylinder SectionSDR AU960117Nut · loose(AUS) ENGINE THERMOSTATIC OIL COOLER BYPASS VALVE (VERNATHERM) NUT LOOSE - FOUND DURING INSPECTION IAW AD/LYC/78Jan 29, 1996 · Cessna 152 · Engine Oil Temperature RegulatorSDR 96ZZZX1099Carburetor · defectiveINSPECTION FOUND CARBURETOR COMPOSITE FLOATS BLACK AND CARBONED. IN ADDITION, THROTTLE ARM WORN. TWO PIECE VENTURI WAS INSTALLED.Jan 28, 1996 · N757UK · Cessna 152 · Fuel Control/Reciprocating EnginesSDR 96ZZZX718Push Rod · defectiveON INSPECTION OF AD 95-03-10, PUSH ROD OF ACCEPTABLE PART NUMBER PER AD WAS FOUND TO HAVE A LOOSE BALL END AND TUBE WAS MUSHROOMED. THIS ENGINE WAS DUE FOR OVERHAUL IN 42 HOURS AT NEXT 100-HOUR INSPECTION, AND THE HIGH TIS WAS SUSPECT CAUSE OF DEFECT.Jan 26, 1996 · N68919 · Cessna 152 · Reciprocating Engine Cylinder SectionSDR CA960126038Valve · sticking(CAN)ENGINE HAD OIL LEAK #3 CYLINDER, AFTER REMOVING THE CYLINDER IT WAS FOUND THAT THE EXHAUST VALVE WAS STICKING AND THE PUSH ROD WAS BENT.Jan 15, 1996 · Cessna 152 · Reciprocating Engine Cylinder SectionSDR 95ZZZX7008Push Rod · crackedFOUND BALL END IN PUSH ROD LOOSE AND PUSH ROD TUBE CRACKED ABOUT .75 INCH ON SAME END.Dec 1, 1995 · N6379M · Cessna 152 · Reciprocating Engine Cylinder SectionSDR 96ZZZX478Push Rod · damagedTHE PUSH ROD METAL INSERT ON THE VALVE END BECAME LOOSE. THIS ALLOWED THE INSERT TO POUND AGAINST THE METAL TUBE, CURLING THE METAL OVER, UNDER THE INSERT TO THE OUTSIDE.Nov 30, 1995 · N9171A · Piper PA38112 · Reciprocating Engine Cylinder SectionSDR 95ZZZX6769Cylinder · glazedENGINE INSTALLED WITH NEW MILLENNIUM CYLINDERS DURING MAJOR OVERHAUL. COMPRESSION CHECKS AFTER 100.5 HOURS REVEALED NR 1 - 52 PSI, NR 2 - 64 PSI, NR 3 - 52 PSI, NR 4 - 72 PSI. ALL CYLINDERS REMOVED FOR REHONING AND PISTONS RE-RINGED. SUBMITTER RECOMMENDS RNov 21, 1995 · N18152 · Beech 77 · Reciprocating Engine Cylinder SectionSDR 95ZZZX6570Cylinder · crackedLOSS OF POWER AND ENGINE ROUGHNESS WAS REPORTED. UPON INSPECTION, CYLINDER NR 2 WAS FOUND TO HAVE LOW COMPRESSION. FURTHER INSPECTION LED TO FINDING A CRACK APPROXIMATELY ONE-HALF WAY AROUND THE CIRCUMFERENCE OF THE CYLINDER BETWEEN THE FINS AT THE JUNCTION Oct 18, 1995 · N757BG · Cessna 152 · Reciprocating Engine Cylinder SectionSDR 95ZZZX6302Pushrod · looseDURING ROUTINE INSPECTION, A VALVE GUIDE CLEARANCE CHECK WAS DONE. THE NR 1 CYLINDER INTAKE PUSHROD WAS FOUND TO HAVE THE STEM LOOSE. IT COULD EASILY BE REMOVED BY HAND. THIS PART IS NORMALLY A PRESS-FIT AND IS NOT REMOVABLE. REPLACED WITH NEW.Oct 17, 1995 · N6449M · Cessna 152 · Reciprocating Engine Cylinder Section
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