Allison 250-C47B

Service difficulty reports · 1,403

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 = '250C47B'
  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.

SDR QMLA2017111317124Oil System · contaminatedPILOT OBSERVED A HIGH ENGINE OIL PRESSURE INDICATION ABOUT TEN MINUTES AFTER TAKEOFF. RETURNED TO DEPARTURE AIRPORT AND PERFORMED A RUN ON LANDING. ENGINE WAS SHUTDOWN WITHOUT INCIDENT. INSPECTED THE ENGINE WITH NO VISUAL DEFECTS NOTED, NO OIL LEAKS NOTED. Nov 13, 2017 · N292AM · Bell 407 · Turbine Engine Oil SystemSDR QMLA2017110617120Engine · making metalPILOT OBSERVED AN ENGINE CHIP LIGHT ILLUMINATED WHILE CONDUCTING HIS PREFLIGHT. MECHANIC INSPECTED THE ENGINE CHIP PLUGS AND FOUND THEM COVERED WITH FINE METAL PARTICLES. AIRCRAFT WAS REMOVED FROM SERVICE. NO RECENT REPAIRS, INSPECTIONS, OR COMPONENT REPLNov 6, 2017 · N292AM · Bell 407 · Turbine Engine Oil SystemSDR QMLA2017100717100Oil Tank · crackedAFTER LANDING AND DURING ENGINE SHUT DOWN, THERE WAS A PRONOUNCED VIBRATION. AFTER SHUT DOWN THERE WAS ENGINE OIL RUNNING OUT OF THE OIL TANK. MAINTENANCE FOUND A CRACK IN THE ENGINE OIL TANK DRAIN VALVE BOSS WELD. UPON FURTHER INVESTIGATION ONE OF THE TAIOct 7, 2017 · N712GA · Bell 407 · Tail Rotor Drive SystemSDR QMLA2017100717104Oil Tank · leakingAFTER LANDING AND DURING ENGINE SHUT DOWN THERE WAS A PRONOUNCED VIBRATION. AFTER SHUT DOWN THERE WAS ENGINE OIL RUNNING OUT OF THE ENGINE OIL TANK. MAINTENANCE FOUND A CRACK IN THE ENGINE OIL TANK DRAIN VALVE BOSS WELD. UPON FURTHER INVESTIGATION ONE OF THOct 7, 2017 · N712GA · Bell 407 · Turbine Engine Oil SystemSDR QMLA2017092417095Engine · making metalENGINE CHIP DETECTOR WARNING LIGHT ILLUMINATED. CHECKED CHIP DETECTORS, FORWARD ENGINE CHIP DETECTOR HAD NUMEROUS METAL CHIPS. CHECKED THE BOTTOM GEARBOX DETECTOR AND ALSO HAD NUMEROUS METAL PARTICLES. THE OIL FILTER BYPASS INDICATOR WAS ALSO POPPED.Sep 24, 2017 · N408LM · Bell 407 · Engine (Turbine/Turboprop)SDR HEER20170922711Bearing · spalledNR 5 BEARING EXHIBITED SPALLING ON OUTER RACE AT SPLIT. REPLACED WITH A NEW NR 5 BEARING.Sep 22, 2017 · N449PH · Bell 407 · Turbine SectionSDR QMLA2017091017091Transmission · making metalIN FLIGHT, THE TRANSMISSION CHIP CAUTION ILLUMINATED. INSPECTED CHIP DETECTOR, DEBRIS FOUND, DETERMINED TO BE INSIGNIFICANT IAW MM 63, NO FURTHER ACTION REQUIRED. AIRCRAFT WAS GROUND RUN FOR 10 MIN,THEN OPERATIONAL CHECK FLIGHT FOR 30+ MIN. COULD NOT DUPLICASep 10, 2017 · N407AM · Bell 407 · Main Rotor GearboxSDR K2DA201709080001Fitting · shearedTHE PILOT IN CHARGE EXPERIENCED A WHINE IN THE ENGINE AND DECIDED TO LAND THE AIRCRAFT. ON LANDING, THE ENG CHIP LIGHT ILLUMINATED. THE PILOT REPORTED THAT ALL OF HIS GAUGES WERE READING NORMAL BUT HE DECIDED TO SHUT THE ENGINE DOWN IMMEDIATELY BECAUSE OF THE Sep 4, 2017 · N402SH · Bell 407 · Turbine Engine Oil SystemSDR QMLA2017090117087Angle · crackedDURING INSPECTION OF THE CABIN STRUCTURE, FOUND CRACKS IN THE ANGLE BRACKETS THAT TIE THE AFT CABIN BULKHEAD AT BS 146 TO RT & LT SIDES OF ROOF BEAM.Sep 1, 2017 · N404LL · Bell 407 · Fuselage Main, Attach FittingsSDR H44R2017083100008Engine · making metalAIRCRAFT HAD JUST TAKEN OFF FOR TOUR FLIGHT, ENGINE CHIP WARNING LIGHT ELIMINATED AND THE AIRCRAFT RETURNED TO THE PIER. MAINTENANCE FOUND EXCESSIVE METAL ON THE PLUGS AND THE AIRCRAFT WAS RETURNED TO LINDEN, NJ BY TRUCK.Aug 31, 2017 · N403TD · Bell 407 · Engine (Turbine/Turboprop)SDR QMLA2017083117086Engine · making metalENGINE CHIP LIGHT. FOUND METAL SHAVINGS ON CHIP DETECTOR. CHIP WAS FOUND DURING PILOT PREFLIGHT/ AIRWORTHINESS CHECK. MECHANIC WAS CALLED INTO INSPECT. REP LEAD MECHANIC RMM WERE CALLED. WAS DETERMINED TO TAKE AIRCRAFT OOS UNTIL FURTHER INVESTIGATION. THIAug 31, 2017 · N383AM · Bell 407 · Engine (Turbine/Turboprop)SDR HEER20170828564Bearing Race · spalledENGINE REMOVED FOR NR 5 BEARING UPGRADE. FOUND SPALLING ON THE BEARING OUTER RACE AT SPLIT.Aug 28, 2017 · N450PH · Bell 407 · Turbine SectionSDR H44R2017082900007Engine · making metalAFTER ENGINE START, THE ENGINE CHIP DETECTOR CAUTION LIGHT ILLUMINATED. PILOT SHUT DOWN ENGINE AND MAINTENANCE PULLED THE CHIP DETECTORS AND FOUND A SIGNIFICANT AMOUNT OF CHIPS.Aug 27, 2017 · N408GG · Bell 407 · Engine (Turbine/Turboprop)SDR H44R2017082400006Engine · making metalAFTER COMPLETION OF THE ENGINE 150 HOUR INSPECTION, A GROUND RUN WAS ACCOMPLISHED. DURING THE GROUND RUN AN UNUSUAL NOISE WAS HEARD, DESCRIBED AS A ANGRY VACUUM CLEANER. THE ENGINE CHIP PLUGS WERE PULLED AND A SIGNIFICANT AMOUNT OF METAL WAS FOUND ON THEM.Aug 23, 2017 · N401TD · Bell 407 · Engine (Turbine/Turboprop)SDR HEER20170726413Bearing · spalledENGINE REMOVED 6-10-17 FOR A NR 5 BEARING UPGRADE. THE NR 5 BEARING EXHIBITED SPALLING ON OUTER RACE AT SPLIT. REPLACED WITH A NEW BEARING.Jul 26, 2017 · Bell 407 · Turbine SectionSDR QMLA2017072517071Engine · making metalENGINE WAS MAKING UNUSUAL NOISE IN ALL PARAMETERS. WHEN ENGINE WAS SHUT DOWN, LOWER AND UPPER CHIP PLUGS WERE REMOVED AND BOTH PLUGS WERE FOUND TO CONTAIN METAL CHIPS.Jul 25, 2017 · N101HF · Bell 407 · Engine (Turbine/Turboprop)SDR H44R2017072000005Handle · shearedDURING A 3 YEAR INSPECTION OF THE EMERGENCY FLOAT GEAR SYSTEM THE INFLATION ACTUATION HANDLE BROKE, THE FLOATS DID NOT ACTUATE. TO CONTINUE THE INSPECTION THE ACTUATION CABLE WAS PULLED DIRECTLY, IT REQUIRED A LOT OF PULL TO INITIATE FLOAT INFLATION. ONCE INITJul 20, 2017 · N945R · Bell 407 · Emergency Flotation SectionSDR HEER20170711374Bearing · spalledENGINE REMOVED FOR NR 5 BEARING UPGRADE. THE NR 5 BEARING EXHIBITED SPALLING ON OUTER RACE AT SPLIT. SCRAPPED THE PART AND REPLACED WITH NEW NR 5 BEARING.Jul 11, 2017 · N449PH · Bell 407 · Turbine SectionSDR HEER20170705371Bearing · spalledENGINE REMOVED 6-18-17 DUE TO LOW POWER. THE NR 5 BEARING EXHIBITED SPALLING ON OUTER RACE AT SPLIT. INSTALLED UPGRADED NR 5 BEARING.Jul 5, 2017 · N403PH · Bell 407 · Turbine SectionSDR HEER20170619332Bearing · spalledENGINE REMOVED FOR NR 5 BEARING REPLACEMENT. THE NR 5 BEARING EXHIBITED SPALLING ON OUTER RACE AT SPLIT. INSTALLED UPGRADED BEARING.Jun 19, 2017 · N402PH · Bell 407 · Turbine SectionSDR QMLA2017061117060Chip Detector · false activationIN FLIGHT THE TRANSMISSION CHIP CAUTION ILLUMINATED. INSPECTED THE CHIP DETECTOR. DEBRIS FOUND DETERMINED TO BE INSIGNIFICANT IAW MM 63. ACFT WAS GROUND RUN FOR 10 MINUTES. AN OPERATIONAL CHECK FLIGHT FOR 30 PLUS MINUTES WAS ALSO COMPLETED. COULD NOT DUPLICATJun 11, 2017 · N407AM · Bell 407 · Main Rotor GearboxSDR QMLA2017060817058Chip Detector · contaminatedIN FLIGHT THE XMSN CHIP CAUTION ILLUMINATED. INSPECTED CHIP DETECTOR, DEBRIS FOUND DETERMINED TO BE INSIGNIFICANT AS PER MM CH 63, NO FURTHER ACTION REQUIRED. AIRCRAFT WAS GROUND RUN FOR 10 MIN. COULD NOT DUPLICATED DISCREPANCY, AIRCRAFT WAS RETURNED TO SERVICJun 8, 2017 · N407AM · Bell 407 · Main Rotor GearboxSDR ALGA2017060842621Bearing · damagedDURING LANDING, ENGINE CHIP LIGHT ILUMINATED, FOLLOWED BY A GRINDING NOISE THEN LOSS OF OIL PRESSURE. NR 8 BEARING FOUND DAMAGED.May 30, 2017 · N577AL · Bell 407 · Engine (Turbine/Turboprop)SDR H44R2017053000004Hmu · degradedPILOT REPORTED, CANNOT ROLL DOWN TO IDLE. FADEC DEGRADE AND RESTART FAULT ON CAUTION WARNING PANEL. FOLLOWED PROCEDURE AND CUT OFF FUEL. RESTART FAULT FLASHED 5 TIMES. RETURNED TO BASE, CHECKED PLA ANGLE WHEN IN HANGAR. FADEC FAILURE HAPPENED MULTIPLE TIMMay 27, 2017 · N406TD · Bell 407 · Fuel Controlling SystemSDR HEER20170517286Bearing · spalledENGINE REMOVED 5-9-17 FOR NR 5 BEARING UPGRADE. NR 5 BEARING SPALLING AT OUTER RACE SPLIT. SCRAPPED BEARING AND REPLACED WITH NEW NR 5 BEARING.May 17, 2017 · N462P · Bell 407 · Turbine SectionSDR 8MHR2017051011434Blades · fracturedHEAVY DAMAGE NOTED ON THE TURBINE BLADES. SEVERAL BLADES HAD SEPARATED PARTIALLY OR COMPLETELY FROM THE WHEEL.May 10, 2017 · Turbine SectionSDR HEER20170510218Bearing · spalledENGINE REMOVED FOR A NR 5 BEARING UPGRADE. THE NR 5 BEARING EXHIBITED SPALLING ON OUTER RACE AT SPLIT. REPLACED WITH NEW BEARING.May 10, 2017 · N431P · Bell 407 · Turbine SectionSDR HEER20170427207Bearing · spalledENGINE REMOVED FOR NR 5 BEARING UPGRADE. NR 5 BEARING EXHIBITED SPALLING ON OUTER RACE AND INNER RACE. REPLACED WITH NEW NR 5 BEARING.Apr 27, 2017 · N412P · Bell 407 · Turbine SectionSDR 2A6D2017041917035Connector · contaminatedWATER WAS FOUND IN THE 1J8 AFT ROOF CONNECTOR. THIS CAUSED THE PILOT TO RECEIVE ERRONEOUS ENGINE INDICATIONS.Apr 19, 2017 · N458AM · Bell 407 · Instrument System WiringSDR HEER20170410116Bearing · spalledENGINE REMOVED FOR A NR 5 BEARING UPGRADE. THE NR 5 BEARING EXHIBITED SPALLING ON OUTER RACE AT SPLIT. REPLACED THE BEARING.Apr 10, 2017 · N433P · Bell 407 · Turbine SectionSDR HEER20170331112Bearing · spalledENGINE REMOVED TO UPGRADE THE NR 5 BEARING. REPLACED THE BEARING DUE TO SPALLING ON THE OUTER RACE.Mar 31, 2017 · N425PH · Bell 407 · Turbine SectionSDR HEER20170329108Bearing · spalledENGINE REMOVED FOR NR 5 BEARING UPGRADE. THE NR 5 BEARING EXHIBITED SPALLING AT OUTER RACE SPLIT. INSTALLED A NEW NR 5 BEARING.Mar 29, 2017 · N612PH · Bell 407 · Turbine SectionSDR IAVA201704050001Combustion Case · crackedOUTER COMBUSTION CASE HAS A CRACK ABOUT 270 DEGREES AROUND FUEL NOZZLE BOSS.Mar 27, 2017 · N20WH · Bell 407 · Turbine Engine Combustion SectionSDR HEER20170315061Bearing · spalledENGINE REMOVED FOR A NR 5 BEARING UPGRADE. THE NR 5 BEARING EXHIBITS SPALLING AT SPLIT. INSTALLED A NEW BEARING.Mar 15, 2017 · N421PH · Bell 407 · Turbine SectionSDR HEER20170315065Bearing · spalledENGINE REMOVED DUE TO A TURBINE NR 5 BEARING UPGRADE. THE NR 5 BEARING EXHIBITED SPALLING AT OUTER RACE SPLIT. INSTALLED A NEW NR 5 BEARING.Mar 15, 2017 · N490PH · Bell 407 · Turbine SectionSDR HEER20170314060Bearing · spalledENGINE REMOVED FOR UPGRADE OF THE NR 5 BEARING. THE BEARING EXHIBITED SPALLING OF OUTER RACE AT SPLIT. INSTALLED A NEW BEARING.Mar 14, 2017 · N453P · Bell 407 · Turbine SectionSDR HEER20170310059Bearing · spalledENGINE REMOVED FOR NR 5 TURBINE BEARING UPGRADE. THE NR 5 BEARING EXHIBITED SPALLING OUTER RACE AND ONE BALL. INSTALLED UPGRADED BEARING.Mar 10, 2017 · N424PH · Bell 407 · Turbine SectionSDR HEER20170302047Bearing · spalledTURBINE REMOVED 2-5-17 FOR OVERHAUL. REMOVED NR 5 BEARING DUE TO FOUND SPALLING ON OUTER RACE AT SPLIT. SCRAPPED PART AND REPLACED WITH NEW BEARING.Mar 2, 2017 · N409PH · Bell 407 · Turbine SectionSDR HEER20170227029Bearing · spalledENGINE REMOVED TO UPGRADE THE NR 5 BEARING. BEARING EXHIBITED SPALLING AT OUTER RACE SPLIT. REPLACED WITH NEW BEARING.Feb 27, 2017 · N453P · Bell 407 · Turbine SectionSDR HEER20170223984Bearing · spalledENGINE REMOVED TO REPLACE THE NR 5 BEARING AND COMPLY WITH CEB 72-6068 REV. 2. THE NR 5 BEARING WAS REMOVED DUE TO SPALLING ON OUTER RACE. REPLACED WITH NEW BEARING.Feb 23, 2017 · N13MX · Bell 407 · Turbine SectionSDR HEER20170220932Bearing · spalledENGINE REMOVED FOR REPAIR FOR A TURBINE OVERHAUL, THE TURBINE NR 5 BEARING WAS FOUND SPALLING ON OUTER RACE SPLIT. INSTALLED A NEW NR 5 BEARINGFeb 20, 2017 · N401PH · Bell 407 · Turbine SectionSDR HEER20170217907Bearing · spalledENGINE REMOVED 1-20-17 FOR UPGRADE OF THE NR 5 BEARING. THE BEARING EXHIBITED SPALLING ON THE OUTER RACE SPLIT. REPLACED THE BEARING.Feb 17, 2017 · N47MX · Bell 407 · Turbine SectionSDR HEER20170217908Bearing · spalledENGINE REMOVED FOR NR 5 BEARING UPGRADE. THE NR 5 BEARING EXHIBITED SPALLING ON OUTER RACE AT SPLIT AND ON BALLS. REPLACED THE NR 5 BEARING.Feb 17, 2017 · N448PH · Bell 407 · Turbine SectionSDR HEER20170213898Bearing · spalledENGINE REMOVED TO UPGRADE THE NR 5 BEARING. THE BEARING EXHIBITED SPALLING AT OUTER RACE SPLIT. REPLACED THE NR 5 BEARING.Feb 13, 2017 · N410PH · Bell 407 · Turbine SectionSDR 2VKA201702140044Compressor · crackedPILOT REPORTED HIS MGT HAD INCREASED IN FLIGHT. A VISUAL INSPECTION WAS PERFORMED ON THE ENGINE AND A CRACK ABOUT 3 INCHES LONG WAS FOUND ON THE LT FORWARD SIDE OF THE COMPRESSOR SCROLL.Feb 11, 2017 · N932SF · Bell 407 · Turbine Engine Compressor SectionSDR HEER20170210896Bearing · spalledENGINE REMOVED 2-3-17 FOR NR 5 BEARING UPGRADE. THE NR 5 BEARING EXHIBITED SPALLING AT OUTER RACE SPLIT. REPLACED THE BEARING.Feb 10, 2017 · N418PH · Bell 407 · Turbine SectionSDR HEER20170207881Carbon Seal · collapsedOIL LEAK AT NR 1 BEARING AREA. INSPECTION REVEALED COLLAPSED 7 LEAKING CARBON SEAL, GROOVED MATING RING SEAL FACE. MATING RING PART NR 23004514. REPLACED WITH NEW CARBON SEAL AND MATING RING.Feb 7, 2017 · N451PH · Bell 407 · Turbine Engine Oil SystemSDR H44R2017021500002Warning Light · illuminatedPILOT OBSERVED ENGINE CHIP LIGHT ON, LANDED AT CLOSEST AIRPORT. PULLED UPPER CHIP DETECTOR, SIGNIFICANT AMOUNT OF METAL ON DETECTOR. CLEANED DETECTOR AND ACCOMPLISHED PENALTY RUN (30 MINUTE GROUND RUN AT 100% NR) THE ENGINE CHIP LIGHT ILLUMINATED AGAIN DURING Feb 5, 2017 · N407EP · Bell 407 · Engine (Turbine/Turboprop)SDR HEER20170202841Bearing · spalledENGINE REMOVED DUE TO METAL IN OIL. PTO BALL BEARING EXHIBITED SEVERE SPALLING OF INNER RACE. REPLACED PTO BALL BEARING.Feb 2, 2017 · N440PH · Bell 407 · Engine (Turbine/Turboprop)SDR HEER20170201840Bearing · spalledENGINE WAS REMOVED TO REPLACED THE NR 5 BEARING. REPLACED THE NR 5 BEARING DUE TO SPALLING ON OUTER RACE AND 1 EACH BALL.Feb 1, 2017 · N411P · Bell 407 · Turbine Section
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