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 FQAR20161202062Bracket · crackedWHEN THE ELT WAS BEING REMOVED FOR INSPECTION, THE TECH DISCOVERED TWO, TWO INCH CRACKS NEXT TO THE NUTPLATES IN THE ELT MOUNTING BRACKET.SDR FQAR20161123061Bracket · crackedWHEN THE ELT WAS BEING REMOVED FOR INSPECTION, THE TECH DISCOVERED TWO 2" CRACKS NEXT TO THE NUTPLATES IN THE ELT MOUNTING BRACKET. THESE CRACKS CAN ONLY BE SEEN WHEN THE ELT TRAY IS REMOVED.SDR FQAR20161121060Bracket · crackedWHEN THE ELT WAS BEING REMOVED FOR INSPECTION, THE TECH DISCOVERED TWO, 2 INCH CRACKS NEXT TO THE NUTPLATES IN THE ELT MOUNTING BRACKET.SDR FQAR20161114056Bracket · crackedWHEN THE ELT WAS BEING REMOVED FOR INSPECTION, THE TECH DISCOVERED TWO 2" CRACKS NEXT TO THE NUTPLATES IN THE ELT MOUNTING BRACKET. THESE CRACKS CAN ONLY BE SEEN WHEN THE ELT TRAY IS REMOVED.SDR FQAR20161114052Bracket · crackedWHEN THE ELT WAS BEING REMOVED FOR INSPECTION, THE TECH DISCOVERED TWO, TWO INCH CRACKS NEXT TO THE NUTPLATES IN THE ELT MOUNTING BRACKET. THESE CRACKS CAN ONLY BE SEEN WHEN THE ELT TRAY IS REMOVED.SDR FQAR20161114057Bracket · crackedWHEN THE ELT WAS BEING REMOVED FOR INSPECTION, THE TECH DISCOVERED TWO 2" CRACKS NEXT TO THE NUTPLATES IN THE ELT MOUNTING BRACKET. THESE CRACKS CAN ONLY BE SEEN WHEN THE ELT TRAY IS REMOVED.SDR FQAR20161110053Angle · crackedDURING A ROUTINE INSPECTION, AN ANGLE IN THE RIGHT WING THAT IS CO-LOCATED WITH THE OUTBOARD FLAP MOUNTING BRACKET WAS FOUND TO BE CRACKED THROUGH THE RIVETS.SDR FQAR20161110054Bracket · crackedDURING A ROUTINE INSPECTION, AN ANGLE IN THE LEFT WING THAT IS CO-LOCATED WITH THE OUTBOARD FLAP MOUNTING BRACKET WAS FOUND TO BE CRACKED THROUGH THE RIVETS.SDR FQAR20161110055Mount Bracket · crackedWHEN THE ELT WAS BEING REMOVED FOR INSPECTION, THE TECH DISCOVERED TWO 2" CRACKS NEXT TO THE NUTPLATES IN THE ELT MOUNTING BRACKET. THESE CRACKS CAN ONLY BE SEEN WHEN THE ELT TRAY IS REMOVED.SDR FQAR20161109049Carburetor · malfunctionedTHE PILOTS PERFORMED A SATISFACTORY PRE TAKEOFF ENGINE RUN AND WERE AWAITING TAKEOFF CLEARANCE WHEN THE ENGINE DROPPED FROM 1400 RPM TO 200 RPM SEVERAL TIMES. AS THEY ATTEMPTED TO RETURN TO THE APRON, THE ENGINE AGAIN DROPPED TO 200 RPM REPEATEDLY. MAINTENANCESDR FQAR20161108048Bracket · crackedWHEN THE ELT WAS BEING REMOVED FOR INSPECTION, THE TECH DISCOVERED TWO 2" CRACKS NEXT TO THE NUTPLATES IN THE ELT MOUNTING BRACKET. THESE CRACKS CAN ONLY BE SEEN WHEN THE ELT TRAY IS REMOVED.SDR FQAR20161027043Bracket · crackedWHEN THE ELT WAS BEING REMOVED FOR INSPECTION, THE TECH DISCOVERED TWO 2" CRACKS NEXT TO THE NUTPLATES IN THE ELT MOUNTING BRACKET. THESE CRACKS CAN ONLY BE SEEN WHEN THE ELT TRAY IS REMOVED.SDR FQAR20161027044Bracket · crackedWHEN THE ELT WAS BEING REMOVED FOR INSPECTION, THE TECH DISCOVERED TWO 2" CRACKS NEXT TO THE NUTPLATES IN THE ELT MOUNTING BRACKET. THESE CRACKS CAN ONLY BE SEEN WHEN THE ELT TRAY IS REMOVED.SDR FQAR20161027046Bracket · crackedDURING A ROUTINE INSPECTION, AN ANGLE IN THE LEFT WING THAT IS LOCATED WITH THE OUTBOARD FLAP MOUNTING BRACKET WAS FOUND TO BE CRACKED THROUGH THE RIVETS.SDR FQAR20161020041Nut Plate · crackedWHEN THE ELT WAS BEING REMOVED FOR INSPECTION, THE TECH DISCOVERED TWO, TWO INCH CRACKS NEXT TO THE NUTPLATES IN THE ELT MOUNTING BRACKET. THESE CRACKS CAN ONLY BE SEEN WHEN THE ELT TRAY IS REMOVED.SDR FQAR20161020042Bracket · crackedWHEN THE ELT WAS BEING REMOVED FOR INSPECTION, THE TECH DISCOVERED TWO, TWO INCH CRACKS NEXT TO THE NUTPLATES IN THE ELT MOUNTING BRACKET. THESE CRACKS CAN ONLY BE SEEN WHEN THE ELT TRAY IS REMOVED.SDR FQAR20161019036Mount Bracket · crackedWHEN THE ELT WAS REMOVED, THE TECH DETERMINED THE ELT MOUNTING BRACKET WAS CRACKED IN FOUR PLACES. THE CRACKS WERE ON EITHER SIDE OF TWO NUTPLATES USED TO MOUNT THE ELT MOUNTING TRAY. THE ELT MOUNTING TRAY HIDES THE CRACKS FROM VISUAL DETECTION.SDR FQAR20161019037Bracket · crackedWHEN THE ELT WAS REMOVED, THE TECH DETERMINED THE ELT MOUNTING BRACKET WAS CRACKED IN FOUR PLACES. THE CRACKS WERE ON EITHER SIDE OF TWO NUTPLATES USED TO MOUNT THE ELT MOUNTING TRAY. THE ELT MOUNTING TRAY HIDES THE CRACKS FROM VISUAL DETECTION.SDR FQAR20161010033Carburetor · bindingDURING FLIGHT, THE PILOTS NOTED THE THROTTLE WOULD BIND IN THE IDLE POSITION. INSPECTION REVEALED THE CARBURETOR WAS BINDING. THIS HAS BEEN A RECURRING PROBLEM WITH THIS MAKE OF CARBURETOR, AND WE ARE TOLD IT IS CAUSED BY THE ACCELERATOR PUMP BINDING. THE CARSDR 2016FA0000401Cylinder Head · crackedENGINE FOUND TO MAKE A WHISTLING SOUND WHEN PROP PULLED THROUGH ON PRE-FLIGHT. INSPECTION FOUND THE NR 3 CYLINDER HEAD CRACKED AFT OF THE INTAKE VALVE. CRACK LENGTH APPROXIMATELY 2 INCHES IN LENGTH. THE CRACK ALSO HAD A SMALL HOLE AT IT'S CENTER APPROXIMATELY SDR 2016FA0000402Cylinder Head · crackedENGINE FOUND TO MAKE WHISTLING SOUND WHEN PROP PULLED THROUGH ON PRE-FLIGHT. INSPECTION FOUND THE NR 1 CYLINDER HEAD CRACKED AFT OF THE INTAKE VALVE. CRACK LENGTH APPROXIMATELY 2 INCHES IN LENGTH. THIS CYLINDER PRESSURE CHECKED GOOD 5.98 HOURS EARLIER WHEN ITSDR FQAR20160802029Frame · crackedDURING A ROUTINE INSPECTION, A FRAME WAS FOUND TO BE CRACKED. THE CRACKS WERE AROUND THE UPPERMOST RIVETS ON THE OUTBOARD ENDS OF THE FRAME, JUST BELOW THE LOWER DOOR SILL AND PILOT'S WINDOW.SDR Y2GR2016FA0000347Cylinder Head · crackedCYLINDER HEAD CRACKED FROM THE EXHAUST PORT AROUND TO THE SPARK PLUG BOSS.SDR FQAR20160719028Frame · crackedDURING A ROUTINE INSPECTION, A FRAME WAS FOUND TO BE CRACKED. THE CRACK WAS AROUND THE UPPERMOST RIVETS ON THE RIGHT SIDE OF THE FRAME, JUST BELOW THE LOWER DOOR SILL.SDR FQAR20160620026Carburetor · defectiveDURING FLIGHT, PILOTS NOTED THE ENGINE WOULD NOT INCREASE RPMS WHEN THROTTLE WAS ADVANCED QUICKLY. INSPECTION BY MAINTENANCE REVEALED THE CARBURETOR, WHICH HAD BEEN INSTALLED 4 DAYS BEFORE, WAS THE CAUSE.SDR FQAR20160608025Carburetor · defectiveDURING FLIGHT THE ENGINE RAN VERY ROUGH, BELOW 1300 RPMS AND BARELY STAYED RUNNING. MAINTENANCE TECHS GROUND RAN THE ACFT AND CONFIRMED SIGNIFICANT ROUGHNESS AT LOW RPMS AS WELL AS NO MIXTURE RISE AT IDLE. ADJUSTING IDLE MIXTURE DID NOT IMPROVE ENGINE PERFORMSDR FQAR20160427020Rotor · detachedPILOT REPORTED THE ENGINE DIED WHEN THE LT MAGNETO WAS TURNED OFF AND THE ENGINE WAS ROUGH RUNNING. MAINTENANCE CONFIRMED THE ISSUE, AND WHEN THE RT MAG WAS REMOVED, RATTLING COULD BE HEARD INSIDE. WHEN THE MAG WAS OPENED, THE BROKEN OFF END OF THE ROTOR, INSDR FQAR20160324014Cylinder · leakingTHE ENGINE WAS UNDERGOING A COMPRESSION CHECK. ALL 4 CYLINDERS HAD GOOD COMPRESSION, 70 PSI, HOWEVER THE MECHANIC PERFORMING THE CHECK HEARD A FAINT HISSING SOUND WHEN THE NR 4 CYLINDER WAS TESTED. THE MECHANIC REMOVED THE INTER CYLINDER BAFFLE AND INTAKE RISDR 2017FA0000176Pressure Switch · failedOIL PRESSURE SWITCH FAILED INTERNALLY, ALLOWING APPROX. 4QTS OF OIL TO LEAK FROM ENGINE, CAUSING LOSS OF OIL PRESSURE REQUIRING AN EMERGENCY LANDING AT THE NEAREST AIRPORT. UPON INSPECTION OF ENGINE 2QTS OF OIL WAS LEFT.SDR FQAR20160221007Oil Cooler · leakingAFTER A NORMAL FLIGHT, THE PILOTS NOTICED THERE WAS A LARGE OIL STREAK ON THE LT SIDE OF THE ACFT THAT ORIGINATED FROM UNDER THE ENGINE COWL. THEY ALSO NOTED THAT THERE WAS LESS THAN 4 QTS OF OIL IN THE ENGINE, DESPITE LEAVING FOR THE 2 HR FLIGHT WITH OVER 7 SDR FQAR20151230104Cylinder Head · separatedDURING CRUISE FLIGHT, THE PILOTS NOTED A LOSS OF ENGINE POWER, ACCOMPANIED BY ABNORMAL ENGINE SOUNDS AND A BURNING ODOR. THEY DIVERTED TO ANOTHER AIRPORT. VISUAL INSPECTION OF THE ENGINE REVEALED THE NR 1 CYLINDER HEAD WAS IN THE PROCESS OF SEPARATING FROM THESDR FQAR20151121103Carburetor · leakingAFTER ENGINE START, THE ENGINE BEGAN RUNNING VERY ROUGHLY. THE ENGINE RPM BEGAN TO DECREASE STEADILY UNTIL THE ENGINE DIED COMPLETELY. THE PILOTS EXITED THE ACFT AND NOTED FUEL WAS STREAMING FROM OUT OF THE ENGINE COWLING. PILOTS IN ANOTHER AIRCRAFT REPORTESDR FQAR20151015101Carburetor · leakingDURING FLIGHT, THE PILOTS NOTED THE ENGINE WOULD INTERMITTENTLY RUN ROUGH, ACCOMPANIED BY A BURNING ODOR. THE ROUGHNESS AND ODOR WOULD HAPPEN ONLY BRIEFLY. UPON THEIR RETURN TO THE APRON, THE PILOTS REPORTED THE ISSUES TO MAINTENANCE, WHO DETERMINED THE CARBUSDR FQAR20151003100Oil Cooler · leakingDURING A ROUTINE INSPECTION, FRESH OIL WAS FOUND SPRAYED AROUND ON THE INSIDE OF THE ENGINE COWLING. INSPECTION REVEALED THE OIL COOLER WAS THE SOURCE OF THE LEAKAGE. IT HAD BEEN INSTALLED ON THE ACFT 5 MONTHS AT THE TIME OF FAILURE.SDR FQAR20150927099Cylinder Head · failed10 MINUTES AFTER TAKEOFF FROM AN INTERMEDIATE STOP, THE STUDENT PILOT NOTED THE ENGINE SLOWLY BEGAN TO LOOSE POWER, ACCOMPANIED BY ROUGHNESS AND ABNORMAL ENGINE SOUNDS. THE STUDENT RETURNED TO THE DEPARTURE AIRPORT AND PERFORMED A SAFE LANDING. AFTER EXITINGSDR FQAR20150923098Carburetor · leakingTHE ENGINE WAS VERY DIFFICULT TO START. A MAINTENANCE TECH WAS ABLE TO GET THE ENGINE TO START, BUT THE ENGINE THEN RAN ROUGHLY. WHEN THE PLANE WAS BROUGHT TO THE HANGAR, DROPS OF FUEL WERE FOUND TO BE DRIPPING FROM THE COWLING, AND WHEN THE COWLING WAS REMOVESDR FQAR20150919095Carburetor · leakingDURING INSPECTION, THE TECH NOTED THERE WAS FUEL DRIPPING FROM THE CARBURETOR MIXTURE CONTROL SHAFT. THE CARBURETOR WAS REPLACED. IT HAD BEEN IN SERVICE LESS THAN 5 MONTHS.SDR FQAR20150825092Throttle Cable · separatedDURING ROUTINE INSPECTION, THE THROTTLE CABLE WAS FOUND PULLED APART. THE SEPARATION WAS AT THE SWAGE ON THE CARBURETOR END. HAD THE DEFECT GONE UNCORRECTED, IT WOULD HAVE LED TO A LOSS OF THROTTLE CONTROL. THIS CABLE HAD BEEN IN SERVICE 1 YEAR. MAYBE THE CSDR FQAR20150823091Carburetor · failedWHEN THE CREW ATTEMPTED TO SHUTDOWN THE ENGINE, THE ENGINE REMAINED RUNNING, JUST ROUGHLY; INSPECTION REVEALED THE CARBURETOR WAS THE SOURCE OF THE MALFUNCTION.SDR FQAR20150822090Oil Cooler · leakingWHEN A MECHANIC PULLED THE TOP COWLING TO PERFORM ROUTINE MAINTENANCE, HE NOTED OIL WAS ALL OVER THE FIREWALL AND ACCESSORY CASE. INSPECTION REVEALED THE OIL COOLER WAS LEAKING FROM BETWEEN THE PLEATS. THE EXACT QUANTITY OF OIL LOST IS UNKNOWN.SDR CA150813001Door · cracked(CAN) DA 40F`S HAVE HAD A HISTORY OF CARB-HEAT DOORS CRACKING. THERE HAVE BEEN MULTIPLE FAILURES OF THE DOORS REPORTED. FIELD REPAIRS HAVE BEEN CARRIED OUT, BUT A REVIEW OF THE DESIGN AND MATERIALS IS BEING INVESTIGATED AT THIS TIME.SDR FQAR20150805085Universal Joint · separatedDURING FLIGHT, THE STUDENT PILOT SEATED AT THE LT CONTROLS NOTED THE YOKE & YOKE SHAFT HAD DISCONNECTED & NO LONGER WERE CONTROLLING THE PITCH OR ROLL. THE FLIGHT INSTRUCTOR TOOK CONTROL, HE NOTED THE AILERON TRAVEL WAS RESTRICTED BUT CONTROL COULD BE MAINTAISDR FQAR20150729083Throttle Cable · separatedDURING ROUTINE INSPECTION, THE THROTTLE CABLE WAS FOUND PULLED APART. THE SEPARATION WAS AT THE SWAGE ON THE CARBURETOR END. HAD THIS DEFECT GONE UNCORRECTED, IT WOULD HAVE LED TO A LOSS OF THROTTLE CONTROL. THIS CABLE HAD BEEN IN SERVICE 6 MONTHS. SPECULASDR CA150714014Distributor Gear · damaged(CAN) ACFT PRE-FLIGHT RUN UP FOUND THE MAGNETO WAS UNSERVICEABLE WHEN SWITCHED TO LT ON SWITCH. THE ENGINE WOULD COMPLETELY STOP AND WAS RUNNING ROUGH ON BOTH MAGNETO`S. ENGINE WAS O/H 404 HRS BEFORE WITH NEW MAGNETO`S. UPON FURTHER INVESTIGATION IT WAS FOUNDSDR FQAR20150622081Oil Cooler · leakingTHE ACFT HAD LANDED AND WAS BEING PUT AWAY WHEN THE PILOTS NOTED THERE WAS OIL LEAKING FROM UNDER THE LT SIDE OF THE COWLING; THE LEAK TRAVELED THE LENGTH OF THE FUSELAGE AND HAD COATED THE LT WING AS WELL. THE PILOTS ALSO NOTED NO OIL WAS VISIBLE ON THE DIPSSDR FQAR20150615080Oil Cooler · leakingWHILE THE ACFT WAS BEING PARKED AFTER A ROUTINE FLIGHT, THE PILOTS NOTED OIL STREAKING DOWN THE LT SIDE OF THE FUSELAGE, FROM THE LT SIDE OF THE TOP COWLING ALL THE WAY BACK TO THE TAIL. OIL ALSO BEGAN DRIPPING DOWN ONTO THE NLG. MAINTENANCE REMOVED THE TOP CSDR FQAR20150610079Carburetor · stuckTHE PILOTS ATTEMPTED TO START THE ENGINE 4 TIMES WITH NO LUCK. AFTER THE 4TH START ATTEMPT, THEY NOTED A STRONG ODOR OF FUEL; THEY SHUTOFF THE BATTERY MASTER AND EXITED THE PLANE. AFTER EXITING, THEY NOTED FUEL GUSHING FROM UNDER THE LOWER COWLING. MAINTENANSDR FQAR20150606072Carburetor · bindingDURING TOUCH AND GOES, THE PILOTS NOTED THAT THE THROTTLE WOULD BIND 1/3RD OF THE WAY UP ITS TRAVEL FROM IDLE. THEY WERE ABLE TO GET FULL POWER BY EITHER FORCING THE THROTTLE OR WIGGLING IT. MAINTENANCE INSPECTED THE ACFT AND FOUND THE CARBURETOR WAS THE SOURSDR FQAR20150528063Tappet · flattenedDURING THE REMOVAL OF A CYLINDER, THE TECH WAS TRYING TO REMOVE THE HYDRAULIC LIFTER ASSY WHEN HE FELT SOMETHING ROUGH INSIDE THE CRANKCASE. VISUAL INSPECTION REVEALED THE CYLINDER-FACING END OF THE NR 4 CYLINDER EXHAUST TAPPET WAS IN PIECES. THERE HAD BEEN SDR FQAR20150528064Cylinder Head · crackedBOROSCOPE INSPECTION INDICATED CRACKING IN THE RT ENGINE NR 2 CYLINDER HEAD. AFTER THE CYLINDER WAS REMOVED, CRACKS WERE OBSERVED TO THE SIDE OF THE LOWER SPARK PLUG HOLE.
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