Lycoming O-360-A4A
Service difficulty reports · 75
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 = 'O360A4A' 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 = 'O360A4A' 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 CA020327005Balance Weight · corroded(CAN) AILERON LEFT AND RIGHT BALANCE WEIGHT ASSY FOUND BADLY CORRODED. PART REMOVED SANDBLASTED STEEL PART INSPECTED FOUND SERVICEABLE.ADEQUATE TREATMENT PRFORMED BEFORE REASSEMBLED.THIS IS CONSIDERED VERY IMPORTANT IF NO ACTION TAKEN WILL CAUSE LOST OF CONTROSDR CA020327002Spar · corroded(CAN) PLATES TO BOTH THE LEFT & RIGHT ATTACHMENT OF AFT WING SPAR TO FUSELAGE FOUND BADLY CORRODED AND NECESSITATED REPLACEMENT.THIS WILL CAUSE DISSIMILAR METAL. THE PLATES ARE RIVETED TO THE AFT SPAR. NEW PLATES ORDERED. ATTACHED PHOTO SHOWS CONDITION. THE ALSDR 2001FA0000188Ignition Switch · failedA NEW SWITCH WAS INSTALLED TO COMPLY WITH AD 76-07-12. THE NEW SWITCH WOULD NOT ENERGIZE THE STARTER CONTACTOR. A SECOND SWITCH WAS ORDERED.SDR 2000ZZZX629Retainer Cup · brokenON ANNUAL INSPECTION, ROCKER COVERS REMOVED FOR GASKET LEAKS. FOUND PUSH ROD RETAINERS ON NR 1 AND NR 2 CYLINDERS BROKEN. THESE WERE SUPERIOR MILLENIUM CYLINDERS WITH 346 HRS SINCE NEW. SUBMITTER STATED PROBLEM IS BELIEVED TO BE INSUFFICIENT SURFACE AREA FOSDR 2000ZZZX171Cylinder · crackedCYLINDER CRACKED AND SEPARATED CAUSING CATASTROPHIC ENGINE FAILURE. P/N CCST 12 CA AEL65102-12.SDR 99ZZZX2934Cylinder · burnedPILOT REPORTED ROUGH ENGINE AND LOSS OF POWER AND BEING UNABLE TO CLIMB TO A SAFE ALTITUDE. OPTED TO MAKE PRECAUTIONARY LANDING ON BEACH. AIRCRAFT UNDAMAGED. UPON INSPECTION, NR 3 CYLINDER HAD NO COMPRESSION. SUBMITTER REMOVED CYLINDER AND FOUND A HOLE BURSDR 99ZZZX2929Cylinder · crackedTHIS NR 4 CYLINDER WAS REMOVED BECAUSE OF A VERY LARGE CRACK AROUND THE TOP OF THE HEAD. THIS AND 2 OTHER CYLINDERS WERE REMOVED AND REPAIRED AT 183.0 TSO BECAUSE OF LOOSE VALVE GUIDES AND SEAL TROUBLES. NOW HAS 1,038.9 TSO HOURS AND A CRACKED HEAD.SDR 99ZZZX381Valve · brokePILOT REPORTED SUDDEN PARTIAL LOSS OF POWER, ENG RUNNING ROUGH. SWITCHED MAGS AND APPLICATION OF CARB HEAT, NO HELP. CONTINUED FLT TO HOME AIRPORT, MADE SUCCESSFUL LANDING. POWER REDUCED AFTER LANDING, ENG QUIT, COULD NOT BE RE-STARTED. INSP NR 3 CYL, NO CSDR 99ZZZX974Bearing Insert · worn outENGINE LOST OIL PRESSURE IN-FLIGHT. ENGINE TEAR DOWN FOUND NR 4 ROD INSERT WAS COMPLETELY BURNED OUT. INSERT COULD HAVE SPUN IN ROD CLOSING OFF OIL SUPPLY. THIS CAUSED THE ROD BOLT TO BREAK. THE ROD CAP WAS DRIVEN THROUGH THE BOTTOM OF THE CASE INTO OIL SUSDR CA981202001Doubler · cracked(CAN) AILERON DOUBLER FOUND CRACKED AT THE OUTER END ON THE UPPER RADIUS CORNER. THIS DOUBLER SUPPORTS THE MASS BALANCE. A TWISTING OF THE DOUBLER HAPPENS IN ROUGH AIR OR WITH HEAVY FLIGHT LOADS. IN ADDITION, THE SUBMITTER SUGGESTS THAT THE CONTROL LOCK LOCSDR 97ZZZX4148Impulse Spring · brokenMAGNETO IMPULSE SPRING FOUND BROKEN INTO 3 PARTS. PART WAS INSTALLED 10-20-94, AND USED 11 HOURS TOTAL. SUBMITTER SUSPECTS CORROSION ON PART STARTED PROBLEM. SUSPECT MATERIAL MAY BE ANOTHER PROBLEM. FACTORY CHANGED APPEARANCE OF PART IN EARLY '94. AS OF TSDR CA970811005Blades · stone damage(CAN) PROPELLER RECEIVED FOR CORROSION INSPECTION. PROPELLER BLADES LEADING EDGES FOUND DAMAGED FROM STONES. BLADES REQUIRED WIDTH REDUCTION.SDR AU970696Seat Belt · wrong part(AUS) SEAT BELTS REWEBBED WITH INCORRECT HEMCO BRAND SEAT BELT HARDWARE - THIS HARDWARE WAS REQUIRED TO BE REMOVED FROM SERVICE IAW AD/RES/27 - PERSONNEL/MAINTENANCE ERROR - UNAPPROVED PARTSDR 97ZZZX2803Cylinder · crackedDURING AN ANNUAL INSPECTION OF ENGINE, CRACKS WERE FOUND IN THE TWO REAR CYLINDERS IN EXHAUST PORTS. ONE HAD CRACKS IN THE INNER (TOWARD CENTER OF HEAD) AND AFT. OTHER IN INNER ONLY. BOTH WERE INSTALLED DEC, '91 AND HAD ACCUMULATED APPROXIMATELY 300 HOURS.SDR 97ZZZX2804Carburetor · crackedDURING ANNUAL INSPECTION, FUEL FOUND SEEPING FROM LOWER AREA OF CARBURETOR. FURTHER INVESTIGATION FOUND A BOLT USED TO MOUNT THE AIRBOX TO THE CARBURETOR WAS TOO LONG AND HAD BROKEN THE CARBURETOR BOWL. SUBMITTER STATED MAINTENANCE PERSONNEL SHOULD BE REMINDSDR 97ZZZX2583Rotor · shaft shearedROTOR SHAFT SHEARED OFF JUST AFT OF SEAL RUNNER BUSHING. THE BREAK IN THE SHAFT APPEARS TO HAVE BEEN CRACKED FOR SOME TIME. THIS ENGINE HAD MAJOR OVERHAUL 441 HOURS AGO FOR PROP STRIKE. THE RIGHT MAGNETO IS DIRECT DRIVE (NO IMPULSE), AND SUSPECT THE SHAFT FSDR 97ZZZX6190Bolt · failedROD BOLT NUTS BACKED OFF AND CONNECTING ROD BOLTS BROKE. SUSPECT CAUSE WAS IMPROPER INSTALLATION OF CONNECTING ROD BOLT NUTS. RECOMMENDATION: RE-VISIT OR RE-ISSUE LYCOMING SI NR 1106D, DATED 6-9-72.SDR 96ZZZX5208Carburetor · leakFOUND LEAK IN BOWL DRAIN WHEN REBUILT CARBURETOR INSTALLED. REMOVED DRAIN, RESEAL.SDR AU960273Cam Follower · failed(AUS) ENGINE CAM FOLLOWERS FAILED - SEVERE INTERNAL DAMAGE TO ENGINE - METAL CONTAMINATION OF OIL SYSTEMSDR 96ZZZX1089Lifter · failedENGINE POWER LOST IN-FLIGHT. AIRCRAFT LANDED WITHOUT INCIDENT. ENGINE REMOVED AND DISASSEMBLED. FIVE OF EIGHT LIFTER BODIES BROKEN AT THE CAM FOLLOWING FACE. SUBMITTER'S OPINION IS THAT ONLY ONE FAILURE OCCURRED. THE OTHER DAMAGE WAS DUE TO FOD FROM THE FSDR 99ZZZX309Seal · failedAPPROXIMATELY 1 INCH OF CRANKSHAFT SEAL PROTRUDED OUT OF CRANKCASE, OIL EXITED ENGINE. PILOT LANDED AIRPLANE IN BEAN FIELD. AIRPLANE GROUND LOOPED, PROP STRUCK GROUND, AND BENT NOSE WHEEL FORK.SDR CA951212008Valve · loose nut(CAN)DURING COMPLIANCE WITH LYCOMING SERVICE BULLETIN 518C (INSPECTION OF THERMOSTATIC BYPASS VALVE) THE VERNATHERM CRIMP NUT WAS FOUND LOOSE. VERNATHERM VALVE REPLACED.SDR 95ZZZX6072Flywheel · crackedAFTER STARTER FLYWHEEL REMOVAL, FOUND FLYWHEEL CRACKED FROM MOUNTING HOLE TO BOTTOM OF CONICAL STRUCTURE. COULD FIND NO REASON FOR CRACK. NO DAMAGE NOTED, WHEN AIRCRAFT ENGINE BALANCED YEAR BEFORE, IT CHECKED OUT GOOD.SDR 95ZZZX5106Valve · defectiveTO COMPLY WITH SB 518C. A NEW THERMOSTATIC BYPASS VALVE WAS INSTALLED. DURING RUN-UP TEST, THE NEW VALVE FAILED TO CONTROL OIL TEMPERATURE. THE VALVE WAS RETURNED TO VENDOR AND ANOTHER NEW ONE WAS INSTALLED AND FUNCTIONED SATISFACTORY.SDR 95ZZZX3137Contact · points closedA MISS ON ONE MAG CAUSED REMOVAL AND EXAMINATION OF THE MAG. THE POINT GAP WAS CLOSED DOWN AND THE POINTS WERE OF A TYPE NOT SEEN IN THIS SERIES MAG BEFORE. SINCE THEY HAD BEEN INSTALLED A SHORT TIME BEFORE, A CALL TO THE INSTALLING AGENCY WAS MADE. ACCORDI
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