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 OW6A201312130001Cylinder · damagedNR 4 CYLINDER HEAD SEPARATED FROM BARREL DURING NORMAL OPERATION. AD2009-26-12 WAS COMPLIED WITH 24.5 HRS PRIOR WITH NO INDICATIONS STATED IN AD THAT WOULD INDICATE CYLINDER WOULD FAIL.SDR FQAR20140129018Tube · failedAS THE AIRCRAFT WAS BEING MANEUVERED BY HAND INTO ITS PARKING SPOT, THE LT MAIN TIRE WENT FLAT. THE WHEEL ASSEMBLY WAS REPLACED WITH A SERVICEABLE BUILT UP WHEEL ASSEMBLY. THE AFFECTED TUBE WAS INSTALLED AS PART OF A BUILT-UP WHEEL ASSEMBLY ON 9/7/2013 AND HADSDR V88R2013FA0000567Mount · failedCOWLING MOUNT FAILED, SEPARATED BETWEEN QUICK LOCK AND BASE. THIS ALLOWED COWL TO MOVE AND CONTACT PROPELLER AFT SPINNER FACE. EVENT OCCURRED UNDER NORMAL FLIGHT CONDITIONS. PROBABLE CAUSE IS SUBSTANDARD MATERIAL AND/OR PROCESSING DURING PART MFG. RECOMMENSDR 2013FA0000485Compressor · leakingHAVE EXPERIENCED MULTIPLE FAILURES/DEFECTS OF THE A/C SYSTEM. THE TYPES OF FAILURES ARE PRIMARILY COMPRESSOR SHAFT OIL LEAKS AND COMPRESSOR LOCKUP FAILURE. THIS IN TURN CAUSES THE DRIVE BELT TO SHEAR AND WE HAVE AN INOPERATIVE A/C SYS. SOME OF THESE FAILURESDR B4VR20130823001Carburetor · corrodedCARBURETOR HAS BEEN UNRELIABLE AND HAS CAUSED VARIOUS PROBLEMS SUCH AS ROUGH RUNNING ENGINE, IDLE SPEED OSCILLATION AND ENGINE STOPPAGE. CORROSION WAS DISCOVERED AFTER DISSASEMBLY.SDR B4VR20130823002Cylinder · brokenECI CYLINDER SEPARATION, NR 3 CYLINDER IN FLIGHT DURING A DEPARTURE. THE CYLINDER BROKE IN 2 PARTS, THE ENGINE REMAINED RUNNING WITH REDUCED POWER, FORTUNATELY LONG ENOUGH FOR A SAFE LANDING. THE AMOUNT OF THE CYLINDER THAT REMAINED WAS ENOUGH TO ALLOW THE PISDR 2013FA0000486Clutch · defectiveTHE A/C COMPRESSOR CLUTCH FAILS AND THEN LOCKS UP CAUSING A DESTROYED DRIVE BELT AND A/C SYS FAILURE. THESE SYS AR ON BRAND NEW ACFT. THESE A/C SYS HAVE BEEN PROBLEMATIC FOR MANY YEARS AND A REASON AS TO WHY WE HAVE THESE FAILURES MUST BE INVESTIGATED.SDR LV0R201308010001Barrel · fracturedUPPER LANDING GEAR CASTING FRACTURED ALLOWING WHEEL ASSEMBLY AND STRUT TO SEPARATE FROM ACFT DURING CLIMB, AFTER TAKEOFF.SDR FQAR2013071002989Throttle Arm · bindingUPON INSPECTION THE THROTTLE LEVER ON THE CARBURATOR WAS FOUND TO STICK INTERMITTENTLY. NO EXTERNAL DAMAGE OR CONDITION WAS FOUND TO BE CAUSE OF THIS FAILURE.SDR FQAR2013072902989Lever · unknownAFTER INSPECTION OF THE THROTTLE LEVER ON THE CARBURETOR, FOUND TO STICK INTERMITTENTLY. NO EXTERNAL DAMAGE OR CONDITION WAS FOUND TO BE CAUSE OF THIS FAILURE.SDR FQAR201307102385Throttle Arm · bindingON INSPECTION OF THROTTLE LEVER ON CARBURETOR, FOUND TO STICK INTERMITTENTLY. NO EXTERNAL DAMAGE OR CONDITION WAS FOUND TO BE CAUSE OF THIS FAILURE.SDR CA121211012Drain · stuck(CAN) RIGHT FUEL TANK QUICK DRAIN STUCK OPEN, O-RING FOUND LODGED UNDER VALVE SEAT UPON INSPECTION. PART REPLACED NEW.SDR 2012FA0000462Plug · chatteringLOSS OF OIL PRESSURE AND ENGINE POWER IN FLIGHT. EXAMINATION REVEALED ALUMINUM PISTON PIN PLUGS FOR CYLINDER NR 4 HAD DISINTEGRATED, DAMAGING PISTON SKIRT, AND BLOCKING OIL FILTER. ENGINE SUBSEQUENTLY SEIZED DUE TO OIL STARVATION.SDR CA120529012Exhaust Pipe · failed(CAN) WHILE ON LEVEL FLIGHT, THE PILOT OBSERVED A SUDDEN CHANGE IN THE SOUND WITH THE ENGINE`S EXHAUST. IT WAS LOUD, THEN BECAME LOUDER WITHIN A FEW SECONDS. AS A PRECAUTIONARY MEASURE, THE PILOT ELECTED TO CLIMB. THE INDIVIDUAL DETERMINED THAT THE ENGINE WAS SDR 2012FA0000271Tube · defectiveACFT LANDED AND REPORTED A NOSE TIRE THAT FELT DEFLATED ON ROLLOUT. THE LANDING OCCURRED WITHOUT INCIDENT. THE ACFT WAS RETURNING FROM A TRAINING FLIGHT. THE MX DEPT REPLACED THE NOSE WHEEL/TIRE ASSEMBLY. UPON DISASSEMBLY OF THE FLATTENED TIRE AND WHEEL, ISDR 2012FA0000272Tube · defectiveHAD RIGHT TIRE FLATTEN WHILE ON LANDING, AFTER A TRAINING MISSION. THE ACFT CAME SAFELY TO A STOP AND MX REPLACED THE TIRE/WHEEL ASSY. UPON DISASSEMBLY OF THE AFFECTED TIRE/ WHEEL ASSY, IT WAS DISCOVERED THAT THE TUBE HAD A MFG DEFECT. A SMALL HOLE NOT CRESDR FQAR201203050001Elbow · leakingUPON INSTALLATION OF A NEW OIL PRESSURE HOSE ELBOW A DEFECT WAS FOUND IN THE PART. THIS IS AN ORIFICED FITTING, IT APPEARS THAT WHEN THE ORIFICE HOLE WAS MACHINED IT WAS DRILLED TO FAR AND THE HOLE CONTINUES OUT THE SIDE OF THE FITTING. THIS WOULD HAVE CAUSESDR CA120228015Magneto · failed(CAN) AIRCRAFT RETURNED TO BASE AFTER RIGHT MAGNETO FAILED DURING PRETAKE OFF RUN UP. TROUBLESHOOTING WAS CONDUCTED AND FOUND THE MAGNETO TO HAVE COMPLETE FAILURE. MAGNETO RETURNED.SDR 2012FA0000135Cylinder · crackedDURING ANNUAL COMPRESSION TEST, CYLINDER WAS FOUND TO HAVE NO COMPRESSION. UPON FURTHER INVESTIGATION AIR WAS FOUND LEAKING FROM THE BACK OF CYLINDER ASSY AT THE POINT WHERE THE FINS STEP UP TO THE NEXT SIZE. WITH AN INSPECTION MIRROR HELD BETWEEN THE BAFFLISDR CA120120007Unknown · odor(CAN) PILOTS DEFECT: AFTER LANDING ROLL OUT AND THE TAXI WAY. THE SMELL OF ELECTRICAL SMOKE WAS DETECTED. NOTHING WAS OBSERVED. INSPECTION C/O IN ENGINE COMPARTMENT, ALL ELECTRICAL WIRES, ALTERNATOR, STAERTER, BATTERY AND COMPNOENTS, ELECTRICAL WIRES AND COMPOSDR 2012FA0000031Plug · disintegratedON RECENT REPLACEMENT OF VALVE COVER GASKETS, DISCOVERED THE ROCKER SHAFT PLUGS HAVE BROKEN INTO SMALL PIECES. IT APPEARS THAT DUE TO THE HIGH INTERNAL HEAT ASSOCIATED WITH THIS PART OF THE ENGINE, THAT THE PLUGS HAVE LIKELY SEIZED INTO PLACE AND OR BECOME SOSDR CA120127005Tube · failed(CAN) TUBE WENT FLAT DURING TAXI, INSPECTION OF TUBE SHOWS PIN HOLE IN RUBBER.SDR IQJ2012F00000Cylinder Head · crackedCYLINDER HEAD CRACKED, CAUSED AN ENGINE POWER REDUCTION ON TAKEOFF: A SUCCESSFUL RETURN TO AIRPORT AND LANDING WAS ACCOMPLISHED. VISIBLE IN COMBUSTION CHAMBER FROM .3750: BELOW INTAKE VALVE, CLOCKWISE THROUGH LOWER SPARK PLUG, AROUND OUTSIDE OF EXHAUST VALVE SDR 2011FA0000631Tire · flatEXPERIENCING PROBLEMS WITH BOTH NEW AND DESSERTIRE RECAPPED TIRES. HAVE HAD MULTIPLE TIRES RANDOMLY GO FLAT AND UPON INSP HAVE FOUND THAT THE INTERIOR SEAM OF THE TIRE IS PUNCTURING THE TUBE. AT FIRST THIS WAS THOUGHT TO BE A RANDOM OCCURANCE BUT NOW WE ARE SDR CA110914005Switch · unserviceable(CAN) PILOT REPORTED ELECTRICAL FIRE SMOKE DETECTED WITH TRANSPONDER INOPERATIVE AND ELECTRICAL FIRE SMOKE DETECTED WHEN TRANSMITTING ON COMM 1. FURTHER DISCUSSION WITH PILOT DETERMINED THAT NO ACTUAL SMOKE WAS SEEN AND ONLY AN ELECTRICAL BURN ODOUR WAS DETECSDR CA110810006Switch · stuckTHE LANDING LIGHT SWITCH WAS REPORTED TO BE STUCK IN THE "ON" POSITION DURING A PRE-FLIGHT INSP. THE SWITCH WAS REPLACED AND THE ASSOCIATED WIRING INSPECTED FOR CONDITION. THE REPLACEMENT SWITCH GROUND CHECKED SERVICEABLE. THIS TYPE OF SWITCH IS SUBJECT TO SDR 2011FA0000500Tappet · making metalTHE PILOT REPORTED THAT THE ENGINE BEGAN RUNNING ROUGH IN FLIGHT. THE AIRPLANE WAS TAKEN TO THE SHOP FOR INSP AND THE TECH FOUND THE NR 4 EXHAUST VALVE TAPPET FACE AND THE NR 2 INTAKE TAPPET FACE WERE MAKING METAL. THE ENGINE WAS REMOVED FROM THE ACFT FOR RESDR 2011FA0000463Exhaust Riser · damagedEXHAUST SYS WAS INSTALLED IN CONJUNCTION WITH 180 HP CONVERSION. THE NR1 EXHAUST RISER WAS FOUND TO BE COMPLETELY SEVERED APPROX .3750 -.5 INCH BELOW THE WELD LINE AT THE CYLINDER FLANGE.SDR 2011FA0000404Intake Valve · leakingINTAKE VALVE LEAKING AT THE 1 O`CLOCK AND 7 O`CLOCK POSITION.SDR CA110419001Bolt · cracked(CAN) UPON INSPECTION, THE MLG LEGS SEEMED TO MAKE A CREAKING SOUND WHEN MOVED FORWARD AND AFT. THE ACFT WAS JACKED UP AND THE LANDING GEAR ATTACH BOLTS WERE REMOVED AND INSPECTED. BOTH BOLTS WERE FOUND CRACKED AT THE POINT WERE THEY GO THROUGH THE GEAR ATTASDR CA110323010Slip Joint · worn(CAN) DURING ANNUAL INSPECTION, AN EXHAUST LEAK WAS DETECTED FROM A SLIP JOINT AT THE LT END OF FRONT MUFFLER. EXHAUST ASSY REMOVED AND FOUND LARGE PORTION OF INNER BAFFLE ON MUFFLER MISSING AND END PIECE OF BAFFLE STILL ATTACHED PARTIALLY BLOCKING EXHAUST EXSDR CA110321009Magneto · failed(CAN) PILOT DETECTED A VIBRATION IN CRUISE FLIGHT & ELECTED TO CARRY OUT A MAGNETO CHECK. THE RT MAGNETO FAILED COMPLETELY. THE PILOT ELECTED TO CLIMB FOR ALTITUDE & RETURNED TO BASE. REMOVED THE MAGNETO & RETURNED IT TO THE MFG FOR WARRANTY. A STRIP REPORSDR CA110322007Rotor · broken(CAN) MAG WAS RECEIVED FOR WARRANTY PURPOSES AS IT FAILED IN SERVICE. MAG WAS OPENED UP & THE NYLON ROTOR GEAR, CAM & 2 TANGS OF THE ROTOR WERE FOUND ASSEMBLED BUT BROKEN AWAY FROM THE ROTOR SHAFT. WHILE INSPECTING THE DISTRIBUTOR BLOCK & GEAR ASSEMBLY IT WASDR CA110321011Magneto · failed(CAN) THE PILOT ELECTED TO CARRY OUT A MAGNETO CHECK IN CRUISE FLIGHT. A 200 RPM DROP WAS THE RESULT. THE PILOT ELECTED TO RETURN TO BASE. MAINTENANCE REMOVED THE MAGNETO AND RETURNED IT TO THE MFG FOR WARRANTY. A STRIP REPORT HAS BEEN REQUESTED AND WILL BSDR CA110322006Rotor · broken(CAN) MAG WAS RECEIVED FOR WARRANTY PURPOSES AS IT FAILED IN SERVICE. MAG WAS OPENED UP & THE NYLON ROTOR GEAR, CAM & 2 TANGS OF THE ROTOR WERE FOUND ASSEMBLED BUT BROKEN AWAY FROM THE ROTOR SHAFT. WHILE INSPECTING THE DISTRIBUTOR BLOCK & GEAR ASSEMBLY IT WASDR CA110224004B-Nut · cracked(CAN) DURING A SCHEDULED REPLACEMENT OF THE FLEXIBLE BRAKE HOSES, IT WAS NOTICED THAT THE END FITTING NUT WAS CRACKED ON THE RT HOSE BEING REMOVED. THE CRACKED NUT WAS AT THE OPPOSITE END OF THE MASTER CYLINDER ATTACHMENT WHERE THE HOSE ATTACHES TO THE AN837-SDR CA110216006Rotor · broken(CAN) CUSTOMER REPORTED MAG DEAD. WHEN INSPECTED FOR WARRANTY RETURN THE DISTRIBUTOR GEAR DID NOT TURN WHEN THE MAGNETO ROTOR WAS TURNED. THIS INDICATES THE ROTOR IS PROBABLY BROKEN AT THE CAM SLOT LOCATION. SEE SDR 20110209025 FOR SIMILAR PROBLEM WITH ANOTHERSDR CA110323005Magneto · failed(CAN) PILOT EXPERIENCED ENG VIBRATION DURING CLIMB OUT & ELECTED TO CARRY OUT A MAGNETO CHECK. THE NR 2 RT MAGNETO FAILED COMPLETELY. THE PILOT ELECTED TO RETURN TO BASE. MX CONFIRMED THE FAILURE & REMOVED THE MAGNETO FOR RETURN TO THE MFG FOR WARRANTY. A SDR 2011FA0000000Condenser · shortedENGINE WILL ROTATE WITH STARTER BUT WILL NOT START. ACFT ENGINE REPLACED WITH ENGINE IAW STC SA-703-GL, ENGINE O/H WITH NEW MAGNETO'S AND HAS NOW ACCUMULATED 32.7 HS. FOUND THE LT MAGNETO CONDENSOR FAILED. THIS ENGINE MODIFIED BY STC TO START ON LT MAGNETO SDR CA110323008Magneto · failed(CAN) SHORTLY AFTER CONTROL SETUP FOR CRUISE CONDITION, ENG VIBRATION WAS DETECTED. THE PILOT ELECTED TO CARRY OUT A MAGNETO CHECK WHICH RESULTED IN A SUBSTANTIAL ENG RPM DROP WHEN THE NR RT MAGNETO WAS TESTED. THE PILOT ELECTED TO RETURN TO BASE. REMOVED TSDR CA101013005Roll Pin · crackedDURING ANNUAL INSP, IT WAS NOTED THAT THE TIP OF A LANDING GEAR DOWN-STOP ROLL PIN HAD BEEN SHEARED OFF. UPON CLOSER INSP OF ALL REMAINING ROLL PINS IN THE UP AND DOWN STOP LATCH BLOCKS, IT WAS NOTED THAT ALL WERE CRACKED. REMOVAL OF THE PINS REVEALED MOST TOSDR 2010FA0000825Screw · loose(DN8S) HAVE HAD (2) CARBURETORS DO THIS IN THE LAST 6 MONTHS. THE PUMP IDLER LEVER SCREW HAS COME LOOSE ON ITS OWN. IT USES A TABBED SAFETY GASKET AND TTHIS HAS NOT STOPPED IT FROM COMING LOOSE. WHEN THIS HAPPENS IT SIGNIFICANTLY AFFECTS THE ACFT`S PERFORMASDR 2010FA0000796Arm · looseDISTRIBUTOR ARM COMING LOOSE FORM THE GEAR. WHEN THE ARM COMES LOOSE, IT CAUSES WEAR ON THE ARM CTR AND AS THE CTR WEARS TO A LARGER DIAMETER HOLE, THE ARM FLIES OUT CLOSING THE GAP AND GRINDS INTO THE CONTACTS OF THE DISTRIBUTOR BLOCK. THE MAG RAN NORMAL ANSDR 2010FA0000795Arm · looseDISTRIBUTOR ARM COMING LOOSE FORM THE GEAR. WHEN THE ARM COMES LOOSE, IT CAUSES WEAR ON THE ARM CTR AND AS THE CTR WEARS TO A LARGER DIAMETER HOLE, THE ARM FLIES OUT CLOSING THE GAP AND GRINDS INTO THE CONTACTS OF THE DISTRIBUTOR BLOCK. THE MAG RAN NORMAL ANSDR 2010FA0000793Arm · looseDISTRIBUTOR ARM COMING LOOSE FORM THE GEAR. WHEN THE ARM COMES LOOSE, IT CAUSES WEAR ON THE ARM CTR AND AS THE CTR WEARS TO A LARGER DIAMETER HOLE, THE ARM FLIES OUT CLOSING THE GAP AND GRINDS INTO THE CONTACTS OF THE DISTRIBUTOR BLOCK. THE MAG RAN NORMAL ANSDR 2010FA0000794Arm · looseDISTRIBUTOR ARM COMING LOOSE FORM THE GEAR. WHEN THE ARM COMES LOOSE, IT CAUSES WEAR ON THE ARM CTR AND AS THE CTR WEARS TO A LARGER DIAMETER HOLE, THE ARM FLIES OUT CLOSING THE GAP AND GRINDS INTO THE CONTACTS OF THE DISTRIBUTOR BLOCK. THE MAG RAN NORMAL ANSDR CA100617012Rotor · unserviceableONE OF THE SHAFT TANG SHEARED THUS ALLOWING SLIPPAGE OF THE TIMING TO OUT OF RANGE.SDR 2010FA0000389Gear · crackedDISASSEMBLED BOTH MAGS TO COMPLY WITH SB3-08A. PRIOR TO REASSEMBLY MECHANIC NOTED THAT THE MAG ROTOR GEARS (PN M3827) ON BOTH MAGS HAD NUMEROUS CRACKS IN ONE OF THE GEAR TEETH. ORDERED 2 NEW GEARS AND FOUND NUMEROUS CRACKS IN ONE OF THE NEW GEARS AS WELL. ASDR CA091114001Piston · cracked(CAN) DURING AN ANNUAL INSP, VALVE COVERS WERE REMOVED TO INSPECT VALVE GUIDE WEAR, NR 3 AND NR 4 EXH VALVE GUIDES WERE WORN, NR 3 BEING THE WORST, WAS REMOVED FIRST. ON REMOVAL OF NR 3 CYL, NR 3 PISTON WAS DISCOVERED CRACKED AND MISSING A PIECE AT THE RT UPPESDR CA091005012Vent Line · out of position(CAN) IT WAS PERIODICALLY NOTICED BY PILOTS THAT FUEL WAS VENTING OUT OF THE VENT LINE. SEVERAL ATTEMPTS WERE MADE TO PREVENT THESE OCCURENCES. THESE INCLUDED CHANGING THE CAPS AS WELL AS ADJUSTING ANGLE OF THE VENT LINE, AND REPLACING THE CHECK VALVE. AS AN E
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