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 CA090921006Cylinder · broken(CAN) THIS PN OF CYL ALREADY HAS AN AD AGAINST IT (AD 2008-19-05) THIS CYLINDER IS S/N NOT APPLICABLE ACCORDING TO THE AD. THE CYLINDER HEAD POPPED RIGHT OFF OF THE CYLINDER IN NORMAL CRUISE CONDITIONS. THIS INCIDENT LOOKS A LOT LIKE WHAT IS DESCRIBED IN THE ASDR 2009FA0000900Rotor · brokenTHE ROTOR SHAFT WAS FOUND BROKEN IN TWO. THE BREAK LINE INDICATES A CRACK WAS PRESENT FOR SOME TIME PRIOR TO SEPARATION. THE MAG AHD NOT HAD ANY INTERNAL MX. 2 WEEKS PRIOR TO THIS, THIS SAME ROTOR BREAK OCCURED ON A 4370 WITH 708 HOURS TIME IN SERVICE.SDR CA090708005Engine · unknown(CAN) DURING TAKEOFF, PILOT REPORTED, LOST 60 PERCENT OF PWR, LANDING CARRIED OUT PERPINDICULAR TO RUNWAY IN GRASS. ONCE CLEARED BY NTSB ACFT INSPECTED IN FIELD AND NO DAMAGE FOUND. ACFT TOWED BACK TO BLOCKS WHERE VISUAL INSP REVEALED NO ABNORMALITIES. ACFTSDR 2009FA0000415Crankcase · damagedENGINE CRANKCASE HAS ABOUT A 1.5 INCH HOLE BLOWN OUT OF IT JUST AFT OF NR4 CYLINDER.SDR 2009FA0000337Oil Filter · collapsedOIL FILTER INTERNALLY COLLAPSED CAUSING THE EXCESSIVE OIL PRESSURE TO BLOW OUT MATING SURFACE SEAL. OIL WAS THEN EXHAUSTED, SUBSEQUENT ENGINE SEIZURE OCCURRED. (K)SDR CA090127007Brushes · damagedWHILE PERFORMING SB3-08 ON BOTH LEFT AND RIGHT MAGNETOS LT P/N 4370 LT S/N 08010485 LT TSN 64.7 AND RT P/N 4371 RT S/N 07111952 RT TSO 400.6 THERE WAS EVIDENCE OF IMPROPER WEAR OF THE CARBON BRUSH. THE COIL TAB HAD RESIDUE COATING AND UNACCEPTABLE WEAR MARKS.SDR CA090105001Structure · worn(CAN) WORN ATTACH HOLE, CAUSING FORE AND AFT MOVEMENT OF THE WHEEL.SDR 2009FA0000029Crankcase · crackedFOUND LT FRONT CRANKCASE CRACKED DURING ROUTINE MX. (K)SDR 2009FA0000028Crankcase · crackedFOUND LT FRONT CRANKCASE CRACKED DURING ROUTINE MX. (K)SDR 2008FA0000754Magneto · out of positionEXCESSIVE TIMING DRIFT. BOTH MAGS SET 25 DEGREES BTDC ON NR1 CYLINDER. NEXT FIRING ORDER (NR 3 CYLINDER) IS OFF 6 DEGREES BETWEEN LT/RT MAG. NEXT FIRING ORDER (NR2 CYLINDER) IS NORMAL. LAST FIRING ORDER (NR4 CYLINDER) IS OFF 6 DEGREES BETWEEN LT/RT MAGS. SDR CA080625006Screw · improper part(CAN) ON GROUND RUN UP, DURING NORMAL PROCEDURE, PILOT MOVED FUEL SELECTOR TO LT FROM RT AND TRY TO COME BACK TO RT. BUT HANDLE WAS SEIZED ON FUEL SELECTOR PANEL ATTACHING SCREWS. FOUND FUEL SELECTOR COVER SCREWS MAKING CONTACT WITH HANDLE AND PREVENTING MOVEMSDR 2008FA0000318Crankshaft · crackedAC WAS FLYING AT 5000 FT, WHEN ENGINE STARTED TO LOSE POWER AND FAILED. AC LANDED SAFELY IN A FIELD. ENGINE WAS FOUND TO BE LOCKED UP. ENGINE WAS DISASSEMBLED AND COMPONENTS INSPECTED. CRANKSHAFT WAS FOUND TO HAVE CRACK, CAUSING ENGINE TO LOCK UP. PROBABLSDR WS9R031908001Retainer · brokenDISCOVERED THAT ALL (4) OF THE PUSH ROD TUBE RETAINERS WERE BROKE UPON REMOVING THE ROCKER BOX COVERS. THIS ENGINE HAD JUST BEEN OVERHAULED AND HAS TEST CELL TIME ONLY.SDR 2008FA0000131Pump · inoperativeAFTER A PREVIOUS FLIGHT, AND BEFORE THE NEXT STUDENTS FLIGHT, THE ELECTRIC FUEL PUMP WAS FOUND TO BE INOPERATIVE. INADEQUATE COOLING IS WHAT WE BELIEVE TO BE THE SOURCE OF THE MALFUNCTIONS. PROVIDE RAM AIR FOR PROPER COOLING OF FUEL PUMP AND MOTOR. (K)SDR 2008FA0000132Pump · inoperativeAFTER A PREVIOUS FLIGHT AND BEFORE THE NEXT STUDENTS FLIGHT, THE ELECTRIC FUEL PUMP WAS FOUND TO BE INOPERATIVE. INADEQUATE COOLING IS WHAT WE BELIEVE TO BE THE SOURCE OF THE MALFUNCTIONS. PROVIDE RAM AIR FOR PROPER COOLING OF FUEL PUMP AND MOTOR. (K)SDR 2008FA0000128Pump · inoperativeAFTER A PREVIOUS FLIGHT, AND BEFORE THE NEXT STUDENTS FLIGHT, THE ELECTRIC FUEL PUMP WAS FOUND TO BE INOPERATIVE. INADEQUATE COOLING IS WHAT WE BELIEVE TO BE THE SOURCE OF THE MALFUNCTIONS. PROVIDE RAM AIR FOR PROPER COOLING OF FUEL PUMP AND MOTOR. (K)SDR 2008FA0000120Control Arm · brokenCARBURETOR HEAT CONTROL ARM BROKE OFF OF CARB AIR BOX CAUSING UNCONTROLLED SELECTION OF CARB HEAT VS RAM (COLD) AIR INTAKE. RECOMMEND INSTALLIING THICKER MATERIAL ON CARB HEAT CONTROL ARM LEVER, DIFFERENT WELDING/HEAT TREATING PROCESS, OR DIFFERENT ATTACHMENTSDR 2008FA0000121Control Arm · brokenCARBURETOR HEAT CONTROL ARM BROKE OFF OF CARB AIR BOX CAUSING UNCONTROLLED SELECTION OF CARB HEAT VS RAM (COLD) AIR INTAKE. RECOMMEND INSTALLING THICKER MATERIAL ON CARB HEAT CONTROL ARM LEVER, DIFFERENT WELDING/HEAT TREATING PROCESS, OR DIFFERENT ATTACHMENT SDR 2008FA0000032Starter · inoperativeOPERATOR COMPLAINED THAT THE ENGINE STARTER WOULD NOT ENGAGE. AFTER INSPECTION, FOUND THAT THE STARTER FIELD CASE HAD SEPARATED FROM GEAR HOUSING. A DETAILED INSPECTION OF THE FIELD CASE SCREW HOLES REVEALED THAT MOST OF THE THREADS WERE STRIPPED OUT AND HOLSDR 2007FA0001090Control Arm · brokenCARBURETOR HEAT CONTROL ARM BROKEN OFF OF CARB AIR BOX CAUSING UNCONTROLLED SELECTION OF CARB HEAT VS RAM (COLD) AIR INTAKE. RECOMMEND INSTALLED THICKER MATERIAL ON CARB HEAT CONTROL ARM LEVER. DIFFERENT WELDING PROCESS, OR DIFFERENT ATTACHMENT PROVISION ALTSDR 2007FA0001080Cylinder · failedRT M/G CYLINDER FAILED AT THE UPPER TORQUE LINK ATTACH LUGS WHILE TAXIING FROM THE ACTIVE RUNWAY: THE AIRCRAFT (SINCE NEW) IS USED FOR FLIGHT TRAINING IN A 141 FLIGHT SCHOOL. THE PREMATURE FAILURE OF THE CYLINDER WAS PROBABLY CAUSED BY A HARD LANDING. (K)SDR 2007FA0000979Control Arm · brokenCARBURETOR HEAT CONTROL ARM BROKE OFF OF CARB AIR BOX CAUSING UNCONTROLLED SELECTION OF CARB HEAT VS RAM (COLD) AIR INTAKE. (K)SDR 2007FA0000919Control Arm · brokenCARBURETOR HEAT CONTROL ARM BROKE OFF OF CARB AIR BOX CAUSING UNCONTROLLED SELECTION OF CARB HEAT VS RAM (COLD) AIR INTAKE. (K)SDR 2007FA0000888Wheel · failedWHEEL IS A 3 PIECE CONSTRUCTION, OUTER RIM AND THE INNER SPACER. BROKE APART ON TAXIING OF AIRCRAFT. JACKED AIRCRAFT AND INSTALLED SERVICEABLE UNIT, THREADS STRIPPED OUT OF CENTER SECTION. (K)SDR CA070827013Valve Spring · broken(CAN) ALUMINUM PARTICLES WERE FOUND IN THE OIL FILTER. UPON TEARDOWN OF THE ENGINE, A BROKEN INTAKE VALVE SPRING (OUTER) HAS DAMAGED THE ALUMINUM CYLINDER HEAD. (TC NR 20070827013)SDR 2007FA0000823Rotor · failedPILOT DEPARTED ON A VFR, DAY FLIGHT. DURING THE CLIMB FROM DEPARTURE, THE PILOT NOTICED A SLIGHT ENGINE ROUGHNESS THAT LASTED ONLY A SECOND. THE ENGINE SMOOTHED OUT UNTIL THE AC WAS LEVELED OUT AT CRUISE ALTITUDE AND CRUISE POWER SETTINGS THE ENGINE BEGAN RUSDR 2008FA0000134Pump · inoperativeAFTER A PREVIOUS FLIGHT AND BEFORE THE NEXT STUDENTS FLIGHT, THE ELECTRIC FUEL PUMP WAS FOUND TO BE INOPERATIVE. INADEQUATE COOLING IS WHAT WE BELIEVE TO BE THE SOURCE OF THE MALFUNCTIONS. PROVIDE RAM AIR PROPER COOLING OF THE FUEL PUMP AND MOTOR. (K)SDR 2007FA0000647Piston · crackedPISTON SKIRT CRACKED ON 2 CYLINDERS.SDR CA070821003Blade · damaged(CAN) WELDED PROPELLER, AIRCRAFT IMPORTED, NO LOG FOR FIXED-PITCH PROP. PROP REMOVED FOR 5 YR CORROSION INSPECTION AS A PRECAUTIONARY MEASURE - SINCE PROP WAS ONLY ALODINED, PROP WAS ANODIZED DURING INSPECTION AT HOPE AERO, TIP FOUND STAINED AFTER ANODIZING. SDR 2007FA0000787Air Box · brokenCARBURETOR HEAT CONTROL ARM BROKE OFF OF CARB AIR BOX CAUSING UNCONTROLLED SELECTION OF CARB HEAT VS RAM (COLD) AIR INTAKE WHILE IN FLIGHT. (K)SDR 2007FA0000786Air Box · brokenCARBURETOR HEAT CONTROL ARM BROKE OFF OF CARB AIR BOX CAUSING UNCONTROLLED SELECTION OF CARB HEAT VS RAM (COLD) AIR INTAKE. (K)SDR M2L2007F00002Drive Gear · brokenDURING AN ENGINE START, THE STARTER BENDIX DRIVE GEAR BROKE. THIS IN TURN LOCKED THE RING GEAR WHICH LOCKS PROP AND ENGINE. (K)SDR 2007FA0000335Spring · brokenPILOT STARTED AIRCRAFT NORMALLY AND DID RUN UP WITH A BAD MAGNETO CHECK. PILOT DID NOT FLY AIRCRAFT AND RETURNED TO HANGER. AIRCRAFT WOULD NOT RESTART. IMPULSE COUPLE DID NOT MAKE ANY NOISE, TIMING WAS WAY OFF. FOUND IMPULSE COUPLE SPRING BROKEN A TURN AND A HSDR 2008FA0000136Pump · inoperativeAFTER A PREVIOUS FLIGHT, AND BEFORE THE NEXT STUDENTS FLIGHT, THE ELECTRIC FUEL PUMP WAS FOUND TO BE INOPERATIVE. INADEQUATE COOLING IS WHAT WE BELIEVE TO BE THE SOURCE OF THE MALFUNCTIONS. PROVIDE RAM AIR FOR PROPER COOLING OF FUEL PUMP AND MOTOR. (K)SDR 2007FA0000058Gearshaft · seizedREMOVED VACUUM DRIVE ASSEMBLY AND FOUND DRIVE GEAR SHAFT SEIZED AND (3) TEETH BROKEN OFF OF DRIVE GEAR. FURTHER INSPECTION REVEALED NO LUBRICATION PORT FOR PRESSURIZED ENGINE OIL TO LUBRICATE THE DRIVE GEAR SHAFT. ALL (3) TEETH WER FOUND IN THE OIL PUMP INLESDR 2006FA0001182Hub · crackedDURING ANNUAL INSPECTION FOUND CRACK EXTENDING THROUGH THE HUB AT ONE OF THE MOUNTING BOLT HOLES. CRACK GOES COMPLETLEY THROUGH THE HUB TO THE INNER BORE OF THE HUB. NO HISTORY OF PROP STIKE OR ANY OTHER VISUAL DAMAGE TO THE PROPELLER. THIS PROPELLER INSTALLESDR 2006FA0001050Wire Harness · damagedTOTAL ELECTRICAL SYSTEM FAILURE IN FLIGHT. INSPECTION REVEALED THAT THE MAIN POWER WIRE’S RING TERMINAL TO THE ALTERNATOR HAD FAILED CAUSING ARCING WHICH SHORTED THE ALTERNATOR OUT AND CAUSED THE MAIN AND ESSENTIAL BUSS CIRCUIT BREAKERS TO POP. POSSIBLE CAUSSDR 2006FA0000897Cylinder · separatedPILOT EXPERIENCED A NOTICEABLE POP SOUND IN ENGINE COMPARTMENT FOLLOWED BY ROUGHNESS. SOON AFTER THE ENGINE OIL PRESSURE STARTED TO DETERIORATE AND PILOT ELECTED TO SHUTDOWN ENGINE AND STOPPED PROPELLER FROM TURNING BY PUTTING AIRCRAFT IN NOSE HIGH ATTITUDE. SDR 2006FA0000521Crankcase · crackedDURING A 100 HR INSPECTION, AN OIL LEAK WAS NOTED AROUND THE L/H FORWARD CRANKCASE AROUND THE UPPER CRANKCASE BOLT (PN 6-34A WITH PN LW-11866 NUT). THE ENGINE WAS CLEANED AND A DYE PENETRANT INSPECTION PERFORMED. A CRACK ROUGHLY 4 INCHES LONG WAS FOUND RUNNISDR 2006FA0000494Air Box · maint errorAC HAD 180 HP ENGINE INSTALLED ON 7/10/96. AC HAS 1443.5 HOURS SINCE INSTALLATION. OPERATOR NOTED 2300 RPM AT CRUISE, FULL THROTTLE. INSPECTED AND FOUND AIRBOX STILL HAD THE HOLE SIZE FOR 160 HP ENGINE. AIRBOX HAD NOT BEEN MODIFIED IAW STC. IT HAD BEEN REPSDR 2006F00021Magneto · shearedPILOT RAN PLANE UP AND DETERMINED THAT RIGHT MAG WAS OUT. MAINTENANCE FOUND 4370 SLICK MAG DRIVE GEAR WITH BROKEN SHAFT PIECE SITTING INSIDE THE COVER. PART TT 746.23SDR 2006FA0000164Spark Plug · defectiveDURING THE INSTALLATION AND OPS CHECK OF 2 NEW MAGNETOS, HARNESS AND 8 SPARK PLUGS TO CORRECT A HARD STARTING DISCREPANCY, THE ENGINE HAD A 200 TO 300 RPM MAGNETO DROP O THE LT MAGNETO. TROBLESHOT THE IGNITION SYSTEM USING A COLD CYLINDER TESTER AND DETERMINESDR AU510001578Gear · broken(AUS) ENGINE STARTER MOTOR DRIVE GEAR DISINTEGRATED DURING START. STARTER MOTOR FRONT HOUSING DAMAGED. (CASA NR 510001578)SDR AU510001927Spacer · incorrect(AUS) RT MAIN LANDING GEAR BRAKE CALIPER SPACER INCORRECTLY FITTED ON THE WRONG SIDE ALLOWING THE CALIPER TO FALL OUT OF THE GUIDES. MAINTENANCE ERROR. (OTHER CAUSE: WHEEL SPACER PLACED ON INCORRECT SIDE OF WHEEL ) (CASA NR 510001927)SDR CA051123002Bearing · stiff(CAN) ROTOR BEARINGS ROUGH AND SHAFT HARD TO TURN. MAGNETO WOULD NOT TURN FAST ENOUGH TO START ENGINE.SDR 2005FA0001368Camshaft · wornAT ANNUAL INSPECTION METAL WAS FOUND IN OIL FILTER. ENGINE WAS TORNDOWN, CAMSHAFT AND LIFTER BODIES WERE DAMAGED. CAMSHAFT AND LIGTER BODIES WERE PURCHASED FROM VENDOR, 1/4/93 AND INSTALLED IN ENGINE 4/8/93 IAW 2000 HOUR TBO. FAILURE OCCURED, TSO 800 HR. ISDR AU510001784Gear · disintegratedENGINE STARTER MOTOR DRIVE GEAR DISINTEGRATED. ENGINE RING GEAR DAMAGED.SDR CA050511002Lifter · destroyedA/C SUFFERED A PWR LOSS IN FLT DUE TO THE COLLAPSE/FRACTURE OF NR 2 CYLINDER EXHAUST VALVE HYD LIFTER BODY P/N 72877. THE PILOT WAS ABLE TO MAINTAIN CONTROL OF THE A/C AND CONTINUE THE FLT TO THE CLOSEST AIRPORT (SWAN HILLS, ALBERTA 'CEM5'). LANDED W/O FURTHSDR 2005FA0000585Strut · brokenFAILURE OF THE (CAST) MAIN LANDING GEAR STRUT CYLINDER. CRACK IN UPPER SCISSOR ATTACHMENT RESULTED IN LOSS OF GEAR AND STRUT ASSY DURING TAKE-OFF.SDR RTE2005F00000Selector · intermittentDURING GROUND RUNUP, FOUND FUEL SELECTOR OPERATION INTERMITTENT. INSP, FOUND UNIT EXTERIOR COVERED IN FINELY GROUND METAL SHAVINGS. UPON DISASSEMBLY, FOUND INTERNAL WALL SCORED BY SELECTOR DETENT MECHANISM. AFTER ANALYSIS OF FUEL SELECTOR INSTALL, WHICH IS
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