Lycoming O-360-A4M
Service difficulty reports · 559
Newest first. General aviation reporting is voluntary.
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 = 'O360A4M' 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.
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 = 'O360A4M' ORDER BY difficulty_date DESC
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
SDR 2003FA0000993Fastener · undertorquedAIRCRAFT OWNER REQURESTED THAT WE CHECK TORQUE ON BOLTS SECURING VERTICAL FIN TO TAILCONE BULKHEAD. FOUND ALL VERTICAL FIN ATTACH HARDWARE UNDER TORQUED. INSPECTED HARDWARE AND MOUNTING HOLES. FOUND NOT PERFECT. REINSTALLED BOLTS AND TORQUED TO MFG SPECIFISDR 2003FA0000503Mount · damagedENGINE MOUNT WAS REMOVED FOR INSPECTION FOLLOWING PROPELLER STRIKE WITH AIRCRAFT. AEROSPACE WELDING REPORTED MOUNT WAS PUSHED UP ON LOWER SECTION AND PUSHED IN ON RIGHT SIDE. AT REMOVAL MOUNT AWAS DIFFICULT TO REMOVE FORM ATTACHMENT BOLTS. AFTER PROPELLER SSDR 2003FA0000204Engine · making metalAT JUST FIVE HOURS AFTER MAJOR OVERHAUL, THE FLIGHT CREW REPORTED THAT THE ENGINE MADE NOISE AT LOWER RPMS METAL PARTICLES THAT LOOK LIKE BEARING MATERIAL WERE FOUND IN THE OIL FILTER. AN OIL SAMPLE WAS SENT IN FOR ANALYSIS.SDR 2004FA0000147Heater · contaminatedPILOT REPORTED SMOKE IN COCKPIT. INSPECTION FOUND HYDRAULIC FLUID ON CARPET COVERING HEATER DUCT. (EA17200405081)SDR FQA2003F00002Channel · crackedDURING A HARD LANDING INSPECTION, A MECHANIC NOTED THE AFT STIFFENING CHANNEL, PN 62086-003 CRACKED ON THE LEFT, LOWER, SKIN NEAR THE WING ROOT. THE CRACK APPEARS OLD. THE LEFT WING FORWARD STIFFENING CHANNEL WAS NOT DAMAGED.SDR 2002FA0001236Contactor · burnedA/C DIVERTED DUE TO THE SEVERE CHOKING SMOKE. PILOT DECLARED AN EMERGENCY AND SQUAWKED 7700 STATING THAT DUE TO THE SMOKE HE WOULD HAVE TO DITCH IN THE OCEAN. HE SAW THE BLOCK ISLAND AIRPORT AND LANDED LONG AND FAST RUNNING OFF THE END OF THE RUNWAY INTO A PSDR VJ32002F00069Harness · failedDURING FLIGHT AND INSPECTION ON GROUND SHOULDER HARNESS KEEPS LOCKING UP BY THE INERTIAL REEL NO RECOMMENDATION AT THIS TIME.SDR VJ32002F00070Indicator · failedDURING FLIGHT INDICATOR SHOWS 10 DEGREE BANK PLUS 50 DEGREE PITCH DURING LEVEL FLIGHT. NO RECOMMENDATION AT THIS TIME.SDR VJ32002F00055Pump · failedDURING FLIGHT OUTPUT OF ENGINE DRIVEN DRY AIR PUMP FAILED TO PUT OUT PROPER PRESSURE. CHECKED SYSTEM FOR LEAKS AND CHECKED REGULATOR FOR PROPER OPERATION, ALL CHECKED WELL. SUSPECT PROBABLE CAUSE IS HEAT. NO RECOMMENDATION FOR CORRECTIVE ACTION AT THIS TIMESDR 2002FA0000773Bracket · failedTHIS BRACKET ATTACHES TO THE LEFT SIDE OF ENGINE COOLING BAFFLE AND ALSO SUPPORTS THE OIL COOLER ON THE LEFT HAND REAR CORNER. BRACKET REMOVED AND A NEW BRACKET INSTALLED.SDR VJ32002F00046Magneto · inoperativeROUGH ENGINE ON GROUND RUN, A MAGNETO CHECK WAS PERFORMED AND THE LEFT MAGNETO HAD EXCESSIVE MAGNETO DROP. MAGNETO WAS REMOVED AND A REPAIRED MAGNETO INSTALLED. MAGNETO OPERATION CHECK OF THE ENGINE WAS PERFORMED AND CHECKED NORMAL.SDR 2002FA0000717Magneto · failedROUGH ENGINE ON GROUND RUN, A MAGNETO CHECK WAS PERFORMED AND THE LEFT MAGNETO HAD EXCESSIVE MAGNETO DROP. MAGNETO WAS REMOVED AND A REPAIRED MAGNETO INSTALLED. MAGNETO OPERATION CHECK OF THE ENGINE WAS PERFORMED AND CHECKED NORMAL.SDR CA020617005Bellcrank · cracked(CAN) DURING ANNUAL INSPECTION, THE LOWER SEAT FORWARD RT BELLCRANK ASSEMBLY WAS FOUND DETACHED LEAVING THE SEAT BOTTOM ATTACHED IN ONLY 3 CORNERS. THE BELLCRANK WAS FOUND DETACHED IN 3 WELDS. THE WELDS WERE ONLY "TACK" WELDS. THE 3 OTHER BELLCRANKS HAVE WELDSSDR 2002FA0000540Oil Filter · mismanufacturedDURING A PREINSTALLATION INSPECTION ON A MFG. SPIN ON OIL FILTER THE CENTER ATTACH STUD WAS FOUND TO BE ONLY FINGER TIGHT. THIS DEFECT COULD HAVE CAUSED LOSS OF ENGINE OIL AND POSSIBLY ENGINE FAILURE IF THE DEFECT GOES UNDETECTED.SDR VJ32002F00011Carburetor · leakingFUEL LEAKING FROM BODY OF CARBURETOR WHEN ENGINE IS SHUT DOWN, MIXTURE VERY RICH. TOTAL TIME ON UNIT IS (0). CARBURETOR REMOVED FOR WARRANTY. OVERHAULED CARBURETOR INSTALLED, GROUND OPERATION CHECKED NORMAL.SDR AUS20020145Camshaft · failed(AUS) CAMSHAFT LOBE FAILED. METAL CONTAMINATION OF OIL SYSTEM. OILPRESSURE RELIEF VALVE OFF SEAT. LOW OIL PRESSURE LED TO BEARING FAILURE AND SUBSEQUENT ENGINE SEIZURE.SDR AUS20011452Connecting Rod · mismanufactured(AUS) FOLLOWING BULK STRIP DUE TO FAILURE OF THE NR 2 CYLINDER CONNECTING ROD IT WAS FOUND THAT THE OIL GALLERY SUPPLYING NR 2 MAIN BEARING WAS NOT DRILLED INTO THE MAIN OIL GALLERY.SDR CA020117010Circuit Breaker · broken(CAN) AT A ROUTINE 100 HOUR ANNUAL INSPECTION IT WAS DISCOVERED THAT TWO CIRCUIT BREAKERS HAD BROKEN REAR ATTACHMENT LUG AT THE BUS BAR ATTACH POINT.SDR 2001FA0000555Bearing · failedWHILE ACCOMPLISHING 50 HOUR INSPECTION, METAL WAS FOUND IN FILTER. TEAR DOWN OF ENGINE REVEALED THAT BEARING PART FAILED. BATCH NUMBER ON BEARING WAS 5-99.SDR AUS20011026Alternator · failed(AUS) ALTERNATOR OUTPUT TERMINAL FRACTURED AND ADJACENT WIRING MELTED.SDR 2001FA0000368Exhaust Valve · failedTHE AIRCRAFT WAS AT NORMAL CRUISE, THE PILOT STATED THAT IT STARTED TO LOSS POWER AND RAN ROUGH. AFTER LANDING AT A ALTERNATE AIRPORT THE AIRCRAFT STOPPED RUNNING. AFTER PULLING THE CYLINDER, THE TOP OF THE EXHAUST VALVE WAS MISSING. THE STEM AND RETAINING SDR 2001FA0000021Cylinder · crackedCRACKED FROM SPARK PLUG HOLE TO EX SEAT.SDR 2001FA0000022Cylinder · crackedCRACKED FROM TOP OF SPARK PLUG HOLE, AROUND OUTSIDE OF EX SEAT TO BOTTOM OF SPARK PLUG HOLE.SDR CA010508010Bracket · loose(CAN) MOUNTING BRACKET FOR PORTABLE ELT ANTENNA HAS LOOSE FIT AND ALLOWS ANTENNA TO FALL OUT. MS 28775-009 O-RING USED TO RETAIN ANTENNA.SDR 20010511CW014Float · damagedDURING OVERHAUL THE CARBURETOR FLOAT WAS FOUND WITH ONE OF THE CHAMBERS HALF FULL OF 100 LOW LEAD.SDR 20010423CW014Plate · brokenDURING ROUTINE MAINTENANCE THE ALTERNATOR END PLATE WAS FOUND WITH THE FORWARD ATTACH EAR BROKEN OFF.SDR 20010423CW013Rotor · brokenPILOT REPORTED EXCESSIVE MAG DROP. FOUND RIGHT MAGNETO ROTOR ASSEMBLY CAM SLOT TO BE BROKEN.SDR AU010255Magneto · failed(AUS) RT MAGNETO FAILED.SDR 20010322CW014Rotor · shearedPILOT REPORTED RT MAGNETO TO BE INOPERATIVE DURING GROUND RUNUP. THE ASSIGNED TECHNICAN REMOVED THE RIGHT MAGNETO AND FOUND THE CAM SLOT ON THE ROTOR SHAFT COMPLETELY SHEARED OFF. CAUSE UNKNOWN POSSIBLE PART DEFECT. THIS MAGNETO WAS INSPECTED EVERY 500 HOURSDR 20010215CW003Cylinder · unserviceableA CRACK RUNS FROM TOP SPARKPLUG HOLE AROUND OUTSIDE EXHAUST SEAT TO TOP SPARKPLUG AND CYLINDER WILL SPLIT IN TWO PIECES.SDR 20010123CW008Rotor · crackedCRACK FOUND AT ROUTINE 500 HOUR INSPECTION.SDR 20010227CW002Control Cable · frayedSTABILIZER CABLE FRAYED.SDR 20010227CW003Control Cable · frayedAILERON BALANCE CABLE FRAYED ABOUT 8 INCHES FROM TURN BUCKLE, NEW CABLE INSTALLED.SDR 20001207SH007Carburetor · crackedFOUND CRACKS IN FLOAT BOWL ON LOWER THROUGH-BOLT BOSS. APPEARED TO BE A FORGING PROBLEM. (X)SDR CA001212022Magneto · failed(CAN) LT MAGNETO SHOWED EXCESSIVE RPM DROP DURING GROUND RUN. (X)SDR 20001120SH037Armature · defectiveTHE ARMATURE DRIVE SPLINE WAS FOUND ALMOST COMPLETELY STRIPPED AWAY LEAVING SHARDS OF STEEL IN THE GEAR HOUSING THAT CONTAMINATED THE BEARINGS. THE BENDIX DRIVE END WAS UNDAMAGED AND THE SHEAR PIN DID NOT SHEAR. THE ARMATURE DRIVE END MAY NOT BE PROPERLY HESDR AU000700Rotor · broken(AUS) RIGHT MAGNETO ROTOR SHAFT SHEARED. (X)SDR 20000925SH024Stud · brokenLYC WORK ORDER NR LB 1027207 FACTORY ZERO TIME ASSEMBLED 11-10-92 INSTALLED 12-28-92 IAW PEN YAN STC. 18 HOURS SINCE LAST ANNUAL. FOUND NR 1 CYLINDER TOP RIGHT .50 INCH THROUGH STUD BROKEN FLUSH WITH CASE. ALL OTHER STUDS ON NR 1 OK. RESEARCH SEEMS TO INDSDR 20001101SH010Rotor Shaft · crackedMAGNETO HAD A 250 RPM DROP DURING PRE-FLIGHT RUN UP. A CHECK OF THE TIMING OF MAGNETO TO ENGINE SHOWED IT TO BE APPROX 10 DEGREES RETARDED. MAG WAS NOT FOUND LOOSE AT ITS MOUNT, SO IT WAS REMOVED FOR INSPECTION. UPON DISASSEMBLY, DISCOVERED A CRACK ON THE 'SDR 20000731SH005Crankshaft · failedCRANKSHAFT FAILED IN-FLIGHT, FORWARD CHEEK OF NR 4 CONROD JOURNAL. AIRCRAFT LANDED AT AIRPORT. NO DAMAGE. (X)SDR CA000828009Shaft · loose(CAN) IDLER GEAR SHAFT FOUND LOOSE IN ENGINE CASE ALLOWING IDLER GEAR TO CONTACT CASE CAUSING METAL CONTAMINATION.SDR 20000523SH019Ignition Lead · failedIGNITION NOISE IN RADIO REPORTED BY OWNER. TRACED PROBLEM TO FOUR IGNITION LEADS WITH UNGROUNDED WIRE SHIELDING. SUBMITTER SUSPECTED POOR QUALITY CONTROL/FINAL INSPECTION BY MANUFACTURER. (X)SDR 20000505SH027Cylinder · brokenEXHAUST VALVE BROKE ON FINAL APPROACH. (X)SDR 20000504SH005Armature · mismanufacturedSUBMITTER STATED THEY HAVE FOUND 6 ARMATURES TO HAVE SEEMINGLY SOFT METAL ON THE DRIVE END SPLINES. THEY HAVE BEEN FOUND WITH THE SPLINES COMPLETELY GROUND OR STRIPPED AWAY LEAVING SHARDS OF STEEL IN THE GEAR CASING THAT CONTAMINATE THE ROLLER BEARINGS. THE SDR AU000093Cylinder · cracked(AUS) NR 4 CYLINDER CRACKED FROM LOWER SPARK PLUG HOLE TO EXHAUST PORT.SDR AU000267Skin · cracked(AUS) WING SKIN CRACKED.SDR 99ZZZX3926Pin Plug · destroyedOWNER NOTICED A SIGNIFICANT DROP IN OIL PRESSURE DURING FLIGHT AND MADE AN IMMEDIATE LANDING AT THE NEAREST AVAILABLE AIRPORT. UPON INSPECTION OF THE OIL FILTER, MUCH ALUMINUM WAS FOUND. UPON REMOVAL OF THE NR 1 AND NR 2 CYLINDERS, IT WAS EVIDENT THE PISTON SDR 99ZZZX3749Magneto · failedPILOT REPORTED THE AIRCRAFT WAS HARD TO START AFTER ENGINE WARMED UP. TROUBLESHOT SYSTEM AND FOUND RT MAGNETO RUNNING ROUGH. MAGNETO ONLY HAD 678 HOURS SINCE NEW.SDR AU990870Fuel Tank · mismarked(AUS) EACH FUEL TANK HELD THREE LITRES LESS CONTENTS THAN FACTORY SPECIFICATIONS (TOTAL OF SIX LITRES LESS OVERALL). INSPECTION OF TANKS FOUND NIL DAMAGE OR NON-STANDARD CONSTRUCTION. FOUND DURING FUEL CALIBRATION TEST.SDR 20000714SH018Coil · defectiveHAVE FOUND FOUR OCCURRENCES OF FAULTY COILS IN SLICK MAGNETOS WITH HOURS FROM 400 - 1,900. SOME COILS ARE OLDER, P/N M3114C. REPLACEMENT P/N, K3975. (X)
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