Lycoming IO-540-AE1A5
Service difficulty reports · 924
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 = 'IO540AE1A5' 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 = 'IO540AE1A5' 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 2NVA20260622001Pump · inoperativeLOW FUEL PRESSURE LIGHT ILLUMINATED IN FLIGHT. NO ENGINE ROUGHNESS. VERIFIED ELECTRICAL FUEL PUMP NOT RUNNING. REPLACED ASSY PN D743-3 ASSY PER MM. THIS IS A COMMON ISSUE WITH THE R44 RAVEN II.SDR 2026FA0000623Cylinder · scoredTHIS IS A NEW AIRCRAFT. LESS THAN 50HRS HAD BEEN FLOWN BEFORE WE FOUND ISSUES. LOGBOOK ENTRY, AIRCRAFT HAD A HARD STARTING CONDITION. FOUND STUCK INTAKE VALVES ON CYLINDERS 2, 4 & 5 WHILE DOING A COLD COMPRESSION CHECK. UPON FURTHER INSPECTION ALL THE EXHAUSTSDR 2024FA0000479Boot · crackedC156-2 WINTER BOOTS (FEATHER BEARINGS ON THE BLADES) DEVELOPED FRACTURES IN THE SILICONE WHERE STRESSES FROM STRETCHING AND DEFORMATION WAS CONCENTRATED. IT WAS NOT A CUT, AND APPEARED TO BE GRANULAR OR ALMOST LIKE FLOWLINES FROM MOLDING.SDR YV3R2023111500586Warning Unit · defectiveCUSTOMER REPORTED WARNING UNIT, LOW RPM P/N: A569-9 PART FAILURE, HORN LIGHT STAYS ON.SDR 2023FA0000601Muffler · distortedEXHAUST SYSTEM HEAT DEFORMING. NEW MUFFLER SYSTEM INSTALLED @ 449.94 THEN AGAIN @912.12.SDR YV3R2023100200582Controller · intermittentCUSTOMER REPORTED CONTROLLER ASSEMBLY (GOVERNOR) P/N: D278-2 WAS INTERMITTENT.SDR YV3R2023100200580Shield · crackedCUSTOMER REPORTED SHIELD ASSEMBLY P/N: D314-2 WAS FOUND CRACKED.SDR YV3R2023082800578Shield · crackedCUSTOMER REPORTED SHIELD ASSEMBLY P/N: D314-1 WAS FOUND CRACKED..SDR YV3R2023092900579Actuator · defectiveCUSTOMER REPORTED ACTUATOR ASSEMBLY P/N: C051-2 ONLY HAD ONE TENSION PLATE WORKING.SDR 2023FA0000345Intake Valve · separatedPILOT REPORTED THAT DURING CRUISE FLIGHT ENGINE RPM BEGAN TO FLUCTUATE AND ENGINE BEGAN TO RUN ROUGH. PILOT IMMEDIATELY RETURNED TO BASE AND MADE A NORMAL LANDING. WHEN ON THE GROUND THE PILOT REPORTED THAT THE ENGINE WAS RUNNING ROUGH AND A SIGNIFICANT VIBRATSDR YV3R2023071000576Altimeter · defectiveCUSTOMER REPORTED ALTIMETER P/N: A613-2 WAS STICKING AND SLUGGISH IN OPERATION.SDR 2023FA0000278Exhaust Valve · corrodedDURING BORE SCOPE INSPECTION OF CYLINDER ASSEMBLIES THE NUMBER 3 CYLINDER EXHAUST VALVE WAS FOUND TO BEY HEAVILY PITTED ON VALVE BELL. THE ENGINE HAS ACCUMULATED 398.4 HOURS SINCE MAJOR OVERHAUL. NEW CYLINDER ASSEMBLIES INCLUDING VALVES WERE INSTALLED AT OVERHSDR YV3R2023051600567Relay · inoperativeCUSTOMER REPORTED RELAY ASSEMBLY P/N: B280-12 WAS INOPERATIVE (NO LOW RPM LIGHT OR HORN).SDR YV3R2023051600568Shield · crackedCUSTOMER REPORTED SHIELD ASSEMBLY P/N: D314-2 WAS FOUND CRACKED.SDR 2024FA0000205Clutch Actuator · brokenAFTER PIC LANDED N31471 WITH THE COLLECTIVE FULL DOWN, THE CLUTCH LIGHT ILLUMINATED. AFTER LIGHT HAD BEEN ON FOR 10 SECONDS, PIC PULLED THE CLUTCH CIRCUIT BREAKER IN ACCORDANCE WITH THE R44 POH AND ROLLED DOWN THE THROTTLE. PIC THEN SHUT DOWN THE HELICOPTER IASDR YV3R2023042700563Controller · defectiveCUSTOMER REPORTED CONTROLLER ASSEMBLY P/N: D278-2 OVER SPEEDS ENGINE AND ROTOR SYSTEM.SDR YV3R2023042700561Relay · faultyCUSTOMER REPORTED RELAY, 40 AMP 24V, SPDT P/N: D260-4 SHORTED INTERNALLY.SDR YV3R2023042700562Cylinder · defectiveCUSTOMER REPORTED CYLINDER ASSEMBLY P/N: D679-3 LEAKED BELOW ALLOWABLE INDICATION LIMIT.SDR YV3R2023031500554Shield · crackedCUSTOMER REPORTED SHIELD P/N: D785-4 CRACKED IN HALF.SDR YV3R2023031500552Actuator · defectiveCUSTOMER REPORTED ACTUATOR ASSEMBLY P/N: C051-2 FAILED SWITCH TEST.SDR YV3R2023031500553Shield · crackedCUSTOMER REPORTED SHIELD ASSEMBLY P/N: D314-2 CRACKED.SDR YV3R2023031400551Controller · defectiveCUSTOMER REPORTED CONTROLLER ASSEMBLY P/N: D278-2 GIVING A HIGH READING OF MORE THAN 101% RPM.SDR YV3R2023031400549Controller · malfunctionedCUSTOMER REPORTED CONTROLLER ASSEMBLY P/N: D278-2 MALFUNCTIONED.SDR YV3R2022111700548Controller · defectiveCUSTOMER REPORTED CONTROLLER ASSEMBLY P/N: D278-2 GIVES HIGH READINGS ON DUAL TACHOMETER.SDR YV3R2022111700547Dual Tachometer · defectiveCUSTOMER REPORTED DUAL TACHOMETER ASSEMBLY P/N: C792-5 FLUCTUATES CAUSING OVER RPM.SDR 2022FA0000591None · collapsedTHE AIRCRAFT LANDED UNEVENTFULLY AND WAS SHUT DOWN BY THE PILOT. AFTER SHUTDOWN THE PILOT INSTALLED THE GROUND HANDLING WHEELS AND BEGAN TO MOVE THE AIRCRAFT INTO THE HANGAR. WHILE GROUND HANDLING THE AIRCRAFT THE AFT RIGHT HAND LANDING GEAR STRUT BROKE AND COSDR YV3R2022100700544None · failedCUSTOMER REPORTED WARNING UNIT ASSEMBLY (LOW RPM) P/N: A569-9 FAILED TO ACTIVATE LIGHT AND HORN.SDR YV3R2022091400537Coordinator · defectiveTURN COORDINATOR ASSEMBLY P/N: B329-1 WAS INOPERATIVE.SDR YV3R2022091300535Governor · defectiveCUSTOMER REPORTED GOVERNOR ASSEMBLY P/N: B247-5 WAS UNSERVICEABLE (INTERMITTENT). TESTING RESULTS: INTERMITTENT IN WIRES APPROXIMATELY 0.5" FROM GROMMET.SDR 2022FA0000525Exhaust Valve · brokenDURING CRUISE FLIGHT ENGINE BEGAN TO RUN ROUGH AND MANIFOLD PRESSURE INCREASED. PILOT WAS ABLE TO RETURN TO THE HELIPAD AND MAKE A NORMAL LANDING. EXHAUST VALVE STEM WAS FOUND TO BE BROKEN AT THE BELL CURVE AND THE VALVE WAS IN THE CYLINDER BORE. SEVERE CYLINDSDR 2022FA0000352Exhaust Valve · brokenNUMBER ONE CYLINDER EXHAUST VALVE STEM BROKE RELEASING VALVE INTO CYLINDER.SDR YV3R2022071100533None · defectiveCUSTOMER REPORTED EVAPORATOR ASSEMBLY P/N: D798-1 CAUSES COMPRESSOR TO SHORT CYCLE, AND DOES NOT COOL.SDR 2022FA0000440Exhaust Valve · brokenEXHAUST VALVE BROKE AT STEM AND ENGINE SUFFERED PARTIAL LOSS OF POWER.SDR YV3R2022071100532None · defectiveCUSTOMER REPORTED GOVERNOR CONTROLLER ASSEMBLY P/N: D278-2 RUNS TO 106%.SDR YV3R2022052600530None · defectiveCUSTOMER REPORTED TAIL ROTOR GEARBOX ASSEMBLY P/N: C021-1 LEAKED FROM THE INPUT CARTRIDGE SEAL.SDR YV3R2022050400526None · defectiveCUSTOMER REPORTED CONTROLLER ASSEMBLY P/N: D278-2 WAS UNSERVICEABLE.SDR YV3R2022050400525None · defectiveCUSTOMER REPORTED DUAL TACHOMETER ASSEMBLY P/N: C792-4 NEEDLES WERE JUMPING WITHIN UNIT.SDR 2022FA0000524Exhaust Valve · brokenDURING CRUISE FLIGHT PILOT REPORTED ENGINE BEGAN TO RUN ROUGH AND MANIFOLD PRESSURE INCREASED. HELICOPTER RETURNED TO HELIPAD AND MADE A NORMAL LANDING. EXHAUST VALVE STEM BROKE AT BELL CURVE AND WAS RELEASED INTO CYLINDER.SDR YV3R2022030400521None · noneCUSTOMER REPORTED COVER ASSEMBLY (COOLING PANEL) P/N: D382-4 WAS CRACKED.SDR YV3R2022030400520None · noneCUSTOMER REPORTED ACTUATOR ASSEMBLY P/N: C051-2 COLUMN SPRINGS DID NOT ACTUATE SIMULTANEOUSLY.SDR YV3R2022031000522None · defectiveCUSTOMER REPORTED ACTUATOR ASSEMBLY P/N: C051-2 WAS INOPERATIVE.SDR YV3R2022050400524None · defectiveCUSTOMER REPORTED WARNING UNIT ASSEMBLY P/N: A569-9 FAILED TO REACT TO RPM'S.SDR YV3R2022011000507None · noneCUSTOMER REPORTED CONTROLLER ASSEMBLY P/N: D278-2 OCCASIONALLY ROLLED OFF WHEN COLD.SDR YV3R2022011000505None · noneDURING MAINTENANCE GROUND RUN, GOVERNOR CONTROLLER P/N: D278-2 INDICATED HIGH RPM WITH INDICATOR NEEDLE ON THE RED ARC.SDR YV3R2021112000503None · noneCUSTOMER REPORTED ACTUATOR ASSEMBLY P/N: C051-2 COLUMN SPRINGS FAILED TO ACTUATE MICRO SWITCH.SDR YV3R2021110900499None · noneCUSTOMER REPORTED CONTROLLER ASSEMBLY P/N: D278-2, ENGINE INDICATION HIGH AND UNABLE TO ADJUST.SDR YV3R2021100700496None · defectiveCUSTOMER REPORTED CONTROLLER ASSEMBLY P/N: D278-2 WILL NOT MAINTAIN RPM.SDR YV3R2021072200471Warning Unit · defectiveCUSTOMER REPORTED WARNING UNIT P/N: A569-9 HORN (AUDIO) DID NOT SOUND.SDR YV3R2021072200470Strut · leakingCUSTOMER REPORTED CYLINDER ASSEMBLY P/N: D679-3 WAS LEAKING. UPON TROUBLESHOOTING, GAUGE P/N: D769-1 WAS FOUND LEAKING.SDR YV3R2021070700469Dual Tachometer · defectiveCUSTOMER REPORTED DUAL TACHOMETER P/N: C792-4 ROTOR NEEDLE READS LOW 2-5%.
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