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 95ZZZX7016Valve · separatedNR 3 CYLINDER EXHAUST VALVE SEPARATED THE STEM FROM THE HEAD. AIRCRAFT WAS FORCED TO LAND. ENGINE HAD GOOD HISTORY OF MAINTENANCE. THE ENGINE WAS NEW IN 1977. SUBMITTER SUGGESTS THE INDUSTRY SHOULD BE REQUIRED TO REMOVE THE EXHAUST SYSTEM AND INSPECT VALVESDR 95ZZZX6555Crankcase · crackedDISCOVERED A 3 INCH LONG CRACK IN ENGINE CASE BELOW NR 1 CYLINDER WHILE INVESTIGATING AN OIL LEAK.SDR CA951120013Valve Guide · cracked(CAN) DURING DIFFERENTIAL COMPRESSION CHECK IT WAS FOUND THAT NR 3 CYLINDER HAD A SEVERE EXHAUST LEAK (20/80). AFTER REMOVAL AND INSPECTION OF THE NR 3 CYLINDER IT WAS REVEALED THAT THE EXHAUST VALVE GUIDE WAS CRACKED AND BADLY WORN AS A RESULT OF THE LONGITUSDR 97ZZZX12Valve Guide · excess wearNR 3 CYLINDER HAD POOR COMPRESSION. IN THE PROCESS OF REMOVING CYLINDER IT WAS NOTED THE ROCKER ARMS WERE INCORRECTLY INSTALLED. THE INTAKES WERE ON THE EXHAUST AND THE EXHAUST WAS ON THE INTAKE. IN CHECKING THE OTHER CYLINDERS, ALL THE REMAINING ROCKER ARMSSDR 95ZZZX3267Valve · wornENGINE WAS OVERHAULED 7-25-94. SPIRIT AIR VALVES, PN AL19001 AND AL73938, WERE INSTALLED NEW AT THAT TIME. AT 165.0 HOURS TSO, ENGINE RAN ROUGH. INSPECTION REVEALED ALL EXHAUST VALVES, PN AL19001, HAD ABNORMAL WEAR, ONE BEING EXTREME AND VERY NEAR FAILURE. SDR 95ZZZX5110Spring · brokenON 100-HOUR ENGINE INSPECTION, NR 1 CYLINDER WAS FOUND TO HAVE A LEAKING PUSHROD GASKET. UPON REMOVING ROCKER COVER TO REPLACE PUSHROD GASKET, THE SHROUD TUBE SPRING WAS FOUND BROKEN. UPON RESEARCH, FOUND THIS ENGINE WAS NOT EFFECTED BY LYCOMING SB 519, DUE SDR 95ZZZX5111Gasket · leakingON 100-HOUR ENGINE INSPECTION, NR 1 CYLINDER WAS FOUND TO HAVE A LEAKING PUSHROD GASKET. UPON REMOVING ROCKER COVER TO REPLACE PUSHROD GASKET, THE SHROUD TUBE SPRING WAS FOUND BROKEN. UPON RESEARCH, FOUND THIS ENGINE WAS NOT EFFECTED BY LYCOMING SB 519, DUE SDR 95ZZZX2627Valve Guide · wornCYLINDER REMOVED DUE TO LOW COMPRESSION. FOUND .010 INCH WEAR IN EXHAUST GUIDE ALLOWING EXHAUST VALVE TO WEAR SEAT AND VALVE FACE. THIS WAS A FACTORY NEW ENGINE. VALVE GUIDE, PN 77160. VALVE, PN LW19001.SDR 95ZZZX1695Tappet · failedAFTER TAKEOFF, TURN OUT OF TRAFFIC, UNDER FULL POWER, RPM ROLLED BACK TO 1900. SEVERE VIBRATION. CONTINUED TURN TO DOWNWIND; BASE FOR EMERGENCY LANDING. ENGINE SHUT DOWN.
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