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 YEWA20200910001Starter Gen · arcedDURING SCHEDULED INSPECTION OF STARTER/GENERATOR, WE FOUND A MOLTEN HOLE IN THE FAN COVER AT THE REAR OF THE GENERATOR. UPON REMOVING THE COVER, WE FOUND ONE OF THE BRUSH LEADS HAD SHORTED TO THE CASE, DAMAGING THE CASE AND THE LEAD. IT WAS ALSO NOTICED THATAug 12, 2020 · N925MD · Bell 407 · DC Generator-AlternatorSDR HEEA202008930Bearing · spalledSPALLING ON BALLS AND OUTER RACE.Aug 7, 2020 · N434PH · Bell 407 · Turbine SectionSDR IAVA202008040001Drive Shaft · crackedDURING 100 HOUR LUBRICATION OF TAIL ROTOR DRIVE SHAFT SPLINES THE #3 TAIL ROTOR DRIVE SHAFT WAS FOUND CRACKED AT ONE ATTACHMENT EAR. TOTAL TIME OF PART IS UNKNOW AS IT IS AN ON CONDITION PART.Jul 31, 2020 · N34BM · Bell 407 · Tail Rotor Drive ShaftSDR QMLA2020072320038Housing · faultyDURING CRUISE FLIGHT WITH NG ABOVE 94%, OIL PRESSURE DROPPED TO 50 PSI. APPROACH WAS INITIATED AND PRECAUTIONARY LANDING WAS MADE WITH A NORMAL SHUTDOWN OF AIRCRAFT. OIL FILTER HOUSING/REGULATOR WAS CHANGED AND OIL PRESSURE RETURNED TO WORKING PROPERLY.Jul 16, 2020 · N407VV · Bell 407 · Turbine Engine Oil SystemSDR QMLA2020071420035Chip Detector · contaminatedPILOT WAS REPOSITIONING THE AIRCRAFT TO THE HOSPITAL FROM THE AIRPORT AND UPON REACHING APPROXIMATELY 300' AGL AFTER TAKEOFF HE RECEIVED A TAIL ROTOR CHIP WARNING INDICATION ON THE PFD. THE PILOT IMMEDIATELY RETURNED BACK TO THE AIRPORT. TWO MECHANICS INSPECJul 14, 2020 · N693AM · Bell 407 · Tail Rotor Drive Indicating SystemSDR QMLA2020052720021Gearbox · making metalON TAKEOFF FROM THE AIRPORT THE PILOT HAD THE MAIN ROTOR GEARBOX CHIP INDICATION ILLUMINATE. THE PILOT LANDED BACK AT THE HANGAR, LESS THAN ONE MINUTE OF FLIGHT PUT ON THE AIRCRAFT. MECHANIC REMOVED CHIP DETECTOR AND FOUND APPROXIMATELY 20 METAL CHIPS ON DETMay 21, 2020 · N404LL · Bell 407 · Main Rotor GearboxSDR QMLA2020051820019Cooling Fan · seizedWHILE RETURNING TO THE BASE, THE PILOT REPORTED AN ELECTRICAL SMELL IN THE COCKPIT AND SAW A SLIGHT AMOUNT OF SMOKE FWD OF INSTRUMENT PANEL. ONCE ON THE GROUND, THE MECHANIC ARRIVED TO TROUBLESHOOT THE CAUSE OF THIS SMELL AND FOUND THE AVIONICS COOLING FAN ON May 16, 2020 · N407NA · Bell 407 · Air Distribution FanSDR M3XA20200511004Engine · unknownPILOT REPORTED DURING CRUISE FLIGHT A SUDDEN LOUD BUZZING/GRINDING NOISE THAT DROWNED OUT THE CABIN NOISE. IT FOLLOWED POWER APPLICATION.May 10, 2020 · N516MT · Bell 407 · Engine (Turbine/Turboprop)SDR K2DA53101Transmission · making metalSHORTLY AFTER TAKEOFF THE MAIN ROTOR TRANSMISSION CHIP LIGHT ILLUMINATED. THE AIRCRAFT TURNED AROUND AND LANDED BACK AT THE AIRPORT & MX WAS DISPATCHED TO THE AIRCRAFT. UPON INSPECTION OF THE MAIN ROTOR TRANSMISSION CHIP DETECTORS, MAINTENANCE PERSONNEL FOUNMar 11, 2020 · N808PH · Bell 407 · Main Rotor GearboxSDR HEER20200129626Combustion Case · crackedENGINE REMOVED 12/31/2019 DUE TO SCHEDULE CHANGE FOR TURBINE OVERHAUL (WHEEL RETIREMENTS). FOUND OUTER COMBUSTION CASE CRACKED AROUND FUEL NOZZLE WELD. M250-C47 SERIES CEB A-72-6085 REV 3 ENGINE, COMBUSTION ASSEMBLY - INSPECTION OF OUTER COMBUSTION CASE P/N Jan 29, 2020 · N452P · Bell 407 · Turbine Engine Combustion SectionSDR QMLA2020011320001Transmission · making metalJUST AFTER TAKE OFF FROM THE HOSPITAL HELIPAD, DURING THE INITIAL CLIMB TO CRUISE ALTITUDE, THE XSMN CHIP CAUTION LIGHT ILLUMINATED. ALTITUDE WAS APPROXIMATELY 700 FEET, AIRSPEED OF 90 KTS WITH CLIMB-OUT POWER APPLIED. FORTUNATELY, WE WERE JUST PASSING THE APPJan 4, 2020 · N357AM · Bell 407 · Main Rotor GearboxSDR QMLA201912198099Hose · leakingFUEL SMELL IN CABIN DURING FLIGHT. UPON INVESTIGATION BY MECHANIC, IT WAS DETERMINED THAT A STEAL BRAIDED HOSE WAS FOUND TO BE LEAKING DURING A PRESSURE TEST OF THE FUEL SYSTEM. *** THIS AIRCRAFT REMAINS OOS AT THE TIME OF THIS SUBMISSION AWAITING THE REPLACEMDec 18, 2019 · N773AL · Bell 407 · Aircraft Fuel Distribution SystemSDR QMLA2019101719080Unknown · odorMED CREW REPORTED SMELLING FUEL IN CABIN DURING THE SECOND LEG OF A PATIENT TRANSPORT FLIGHT. THE AIRCRAFT WAS LANDED, AND MECHANIC WAS CALLED TO INSPECT THE AIRCRAFT. THE BAGGAGE COMPARTMENT MEDICAL SERVICES PANEL WAS REMOVED TO EXPOSE A FUEL VALVE THAT WAS TOct 17, 2019 · N101HF · Bell 407 · Aircraft Fuel SystemSDR 2020FA0000039Oil Cooler · unknownDURING A ROUTINE 150 HOUR INSPECTION IT WAS DISCOVERED THAT THE COMPOSITE PANEL BELOW THE OIL COOLER BLOWER, AS WELL AS AN AIRFRAME LONGERON AND STRINGER BELOW THE PANEL EXHIBITED STRUCTUAL CRACKING. THE DEFECT OCCURRED DURING UTILITY FIRE FIGHTING OPERATIONSAug 8, 2019 · N405PJ · Bell 407 · Engine Oil CoolerSDR CA190719011Closeout Panel · damaged(CAN) EAGLE COPTERS IS CURRENTLY INVESTIGATING A CUSTOMER REPORTED MARKING THAT WAS OBSERVED ON THE MAIN ENGINE TO TRANSMISSION DRIVESHAFT (PN 407-340-310-101). IT APPEARS THE DRIVESHAFT BRIEFLY TOUCHED THE 0789-03-132 LOWER CLOSE OUT, PART OF THE AIRCRAFT ENGJul 16, 2019 · Bell 407 · Nacelle/Pylon, Main FrameSDR BHHR20190621002Adapter · contaminatedFADEC DEGRADED AND FADEC FAULT LIGHT ILLUMINATED IN-FLIGHT. DISCONNECTED FOST ADAPTER LOCATED IN ENGINE HARNESS AT (P3) AND VISUALLY INSPECTED FOR CORROSION. NO OBVIOUS DEFECTS WERE NOTED. WE CLEANED ALL THE CONTACTS OF HARNESS AT (P3). WE APPLIED ACF-50 TO Jun 20, 2019 · N407TN · Bell 407 · Engine Fuel System WiringSDR H44R2019061000009Float · malfunctionedDURING ACCOMPLISHMENT OF THE APICAL LIGHTWEIGHT EMERGENCY FLOAT KIT (STC# SR01450LA) 3 YEAR INSPECTION THE SYSTEM IS ACTUATED AND THE EMERGENCY FLOATS ARE DEPLOYED. IT REQUIRED 3 ATTEMPTS TO ACTUATE THE SYSTEM. WE WERE UNABLE TO DETERMINE IF IT WAS A RIGGING IJun 1, 2019 · N408GG · Bell 407 · Emergency Flotation SectionSDR CA190514011Skin · cracked(CAN) IT WAS REPORTED TO BELL: WE FOUND A CRACK IN OUR TAIL BOOM AT APPROX.F.S 120.75 ON THE L/H SIDE WHERE THE LOWER PLATE FOR THE HORIZONTAL PASSES THROUGH. (TC# 20190514011)May 10, 2019 · Bell 407 · Rotorcraft Tail BoomSDR CA190507001Bushing · cracked(CAN) IN BELL FACILITY: AIRCRAFT COMMERCIAL UNDER EXPERIMENTAL PERMIT: DURING CLEARANCE CHECK, WITH THE HYDRAULIC SYSTEM INSTALLED, WE STARTED ROTATION MOVEMENT OF CYCLIC AND UP/DOWN COLLECTIVE. WHILE COLLECTIVE DOWN, A CLUNK NOISE WAS DETECTED COMING FROM THEMay 5, 2019 · Bell 407 · Main Rotor Mast/SwashplateSDR QMLA2019050319045Unknown · odorAFTER TAKE OFF, THE CREW AND PILOT NOTICED AN INEXPLICABLE HEAT RADIATING THROUGH THE AIRCRAFT ACCOMPANIED BY A SMELL OF BURNING PLASTIC. HEATER, AIR CONDITIONER AND DEMISTER WERE IN THE OFF POSITION. WE WERE ONLY A FEW MILES AWAY FROM BASE AND RETURNED TO BASMay 3, 2019 · N383AM · Bell 407 · Air Distribution SystemSDR QMLA2019043059043Chip Detector · activatedDURING 2ND START OF THE DAY WITH PATIENT AND MEDICAL CREW LOADED, WITH ENGINE AT GROUND IDLE, ENG CHIP CAUTION ILLLUMINATED, EXTINGUISHED, THEN REAPPEARED. AIRCRAFT WAS SHUT DOWN AND MAINTENANCE NOTIFIED. AIRCAFT WAS PLACED OUT OF SERVICE FOLLOWING INSPECTION Apr 26, 2019 · N697AM · Bell 407 · Engine (Turbine/Turboprop)SDR CA190225002Blade · failed(CAN) IT WAS REPORTED TO BELL:CUSTOMER REPORT ON ENGINE EVENT, THE PILOT CALLED ME AND REPORTED THAT ON APPROACH TO THE HELIPAD AT ABOUT 30 FEET ABOVE GROUND LEVEL A THUD WAS HEARD IMMEDIATELY FOLLOWED BY A JOLT IN THE CONTROLS. THE PILOT ALSO STATED THAT PERFeb 20, 2019 · Bell 407 · Turbine SectionSDR VE7A201902050001Bearing Seal · leakingABOUT 10 MINUTES IN CRUISE FLIGHT, LIGHT SNOW WAS NOTED AND THE OAT WAS AROUND 0 SO I TURNED ON THE ENGINE ANTI-ICE AND PITOT HEAT. APPROXIMATELY 2 MINUTES AFTER THE SWITCHES HAD BEEN TURNED ON, LIGHT SMOKE WAS OBSERVED IN THE CABIN. AS THE DETERMINATION TO WHJan 31, 2019 · N407P · Bell 407 · Turbine Engine Compressor SectionSDR QMLA2019012119010Starter Gen · failedGENERATOR FAILED IN FLIGHT AND COULD NOT BE RESET.Jan 21, 2019 · N284AM · Bell 407 · Starter-GeneratorSDR HEER20190111515Bearing · spalledENGINE REMOVED 12-25-18 DUE TO METAL IN OIL. DETERMINED CAUSE TO BE TURBINE NR 5 BEARING SPALLING. INSTALLED NEW BEARING. PART WILL BE RETURNED FOR EVALUATION ON SHIPPING NUMBER 4904011120191.Jan 11, 2019 · N433PH · Bell 407 · Turbine SectionSDR QMLA2019010719005Engine · making metalENGINE CHIP LIGHT DURING CRUSE FLIGHT, FOUND MULTIPLE CHIPS ON BOTH UPPER AND LOWER DETECTORS AFTER LANDING.Jan 7, 2019 · N901NM · Bell 407 · Engine (Turbine/Turboprop)SDR M3XA20181128706Tube · leakingPILOT MADE A PL WITHOUT INCIDENT NEAR SIX MILE, SC, NO PATIENT ON BOARD WHILE REPOSITIONING THE ACFT. THE ENGINE OIL PRESSURE WAS INDICATING LOW AND FLUCTUATING. UPON MECHANICS INSPECTION, IT WAS DETERMINED THAT THE COMPRESSOR #1 BEARING OIL SUPPLY TUBE HAD Nov 27, 2018 · N407CR · Bell 407 · Turbine Engine Oil SystemSDR GCSA20181004001Plate · deterioratedDURING FLIGHT ENGINE OIL PRESSURE INDICATION DROPPED IMMEDIATELY AND BY 10 PSI. OIL PRESSURE WAS STILL IN ACCEPTABLE RANGE(GREEN)FOR CONTINUED OPERATION. SECOND LEG OF FLIGHT HAD REPEATED DROP IN PRESSURE IN FLIGHT. AIRCRAFT GROUNDED UPON RETURN TO HOME BASE FSep 7, 2018 · N119MF · Bell 407 · Turbine Engine Oil SystemSDR M3XA20180828705Gauge · inoperativeWHILE IN CRUISE FLIGHT, THE PILOT LOOKED AT THE ENGINE OIL PRESSURE GAUGE AND SAW NO INSTRUMENT INDICATION. LANDED WITHOUT INCIDENT. MECHANIC TROUBLESHOT THE ENGINE OIL PRESSURE TRANSDUCER SYSTEM FOR THE INDICATION AND CLEANED THE CONNECTOR PLUG WITH NO OBAug 27, 2018 · N911LL · Bell 407 · Engine Oil PressureSDR HEER201808143108Bearing · spalledENGINE REMOVED DUE TO METAL IN THE OIL. THE NR 2 BEARING EXHIBITED SPALLING ON THE BEARING BALLS.Aug 13, 2018 · N473PH · Bell 407 · Turbine Engine Compressor SectionSDR HEER201808143109Retaining Ring · brokenENGINE REMOVED DUE TO METAL IN THE OIL. THE NR 2 BEARING RETAINING RING WAS BROKEN WITH A PIECE MISSING.Aug 13, 2018 · N473PH · Bell 407 · Turbine Engine Compressor SectionSDR 8MHR201807130001Turbine Wheel · crackedCRACKED TURBINE WHEEL, IN AREA SDJACENT TO THE CURVIC COUPLING.Jul 13, 2018 · Bell 407 · Turbine SectionSDR HEER20180618020Bearing · making metalON DISASSEMBLY OF THE ENGINE, METAL WAS FOUND IN THE GEARBOX. NR 3 ROLLER BEARING EXHIBITED METAL PICKOUT IN SEPERATOR POCKETS. INSTALLED A NEW BEARING.Jun 18, 2018 · N427P · Bell 407 · Turbine Engine Accessory DriveSDR K2D2018F00000Hmu · faultyPILOT DECIDED TO MAKE A PL ON FIRST FLIGHT OF THE DAY DUE TO INCREASING VIBES FROM THE MAIN ROTOR. BLACK SMOKE COMING FROM ENG NO SECONDARY INDICATIONS. THE HMU WAS CHANGED OUT THE NIGHT BEFORE. HMU WAS FRESH OUT OF OVERHAUL FROM STANDARD AERO. MX ARRIVED Jun 6, 2018 · N407WH · Bell 407 · Fuel Controlling SystemSDR K2DA201806190001Hmu · malfunctionedPILOT DECIDED TO MAKE A PL ON FIRST FLIGHT OF THE DAY DUE TO INCREASING VIBES FROM THE MAIN ROTOR. BLACK SMOKE COMING FROM ENGINE, NO OTHER SECONDARY INDICATIONS. THE HMU (HYDROMECHANICAL UNIT) WAS CHANGED OUT THE NIGHT BEFORE. HMU WAS FRESH OUT OF OVERHAUL. Jun 5, 2018 · N407WH · Bell 407 · Fuel Controlling SystemSDR HEER201806064018Bearing · failedTHE ENGINE WAS REMOVED. METAL NOTED ON CHIP PLUGS. DISASSEMBLED THE GEARBOX AND FOUND THE PICKUP ON 3 & 4 BEARING SEPERATORS. REPLACED THE 3 & 4 ROLLER BEARINGS.Jun 4, 2018 · N434PH · Bell 407 · Turbine Engine Reduction GearSDR QMLA2018053118066Switch · malfunctionedSAS FORCE TRIM SWITCH ENGAGES UNCOMMANDED. WHEN SAS IS ENGAGED VIA CONTROL PANEL THE FORCE TRIM RELEASE SWITCH WILL OVERRIDE THE FORCE TRIM UNCOMMANDED RESULTING IN UNCOMMANDED PITCH AND ROLL CHANGES WHEN THE CYCLIC IS NOT GUARDED OR HELD. WHEN SAS IS OFF, THEMay 31, 2018 · N408LN · Bell 407 · Auto Flight SystemSDR NXTA201803260001Blower Motor · shortedSTRONG BURNING ODOR DETECTED IN FLIGHT. AIRCRAFT WAS RETURNING TO BASE WHEN DETECTED. BLOWER MOTOR FOUND SHORTED.Mar 24, 2018 · N418CF · Bell 407 · Air Distribution FanSDR QMLA2018031518031Engine · making metalTHE ENGINE CHIP CAUTION LIGHT ILLUMINATED AFTER APPROXIMATELY 20 SECONDS AFTER THE ENGINE WAS STARTED. SHUTDOWN THE ENGINE. COMPLETED AN INSPECTION IAW MAINTENANCE MANUAL AND DETERMINED THAT THE ENGINE NEEDED TO BE REPLACED.Mar 15, 2018 · N338AM · Bell 407 · Engine (Turbine/Turboprop)SDR HEER20180227862Gear Shaft · crackedREMOVED 1-11-18 DUE TO A CRACKED ON FUEL CONTROL OIL PUMP GEAR SHAFT FORWARD SPLINES. REPLACED GEAR WITH NEW GEAR PART NUMBER M250-10454.Feb 27, 2018 · N467PH · Bell 407 · Turbine Engine Oil SystemSDR HEER20170207016Bearing · spalledTHE NR 5 BEARING EXHIBITED SPALLING ON THE OUTER RACE SPLIT. INSTALLED A NEW NR 5 BEARING.Feb 7, 2018 · N428PH · Bell 407 · Turbine SectionSDR QMLA2018012918011Engine · making metalEN ROUTE TO BASE, THE ENGINE CHIP LIGHT ILLUMINATED. LANDED. MAINTENANCE PULLED THE MAGNETIC PLUGS FROM ENGINE AND DISCOVERED NUMEROUS SIGNIFICANT FERROUS SLIVERS AND DEBRIS ON BOTH.Jan 29, 2018 · N407LN · Bell 407 · Engine (Turbine/Turboprop)SDR M3XA2018012202Engine · making metalPL FOR ENGINE CHIP LIGHT AND LANDED WITHOUT INCIDENT. ON INSPECTION, IT WAS DETERMINED THAT CHIPS WERE MORE THAN ALLOWED IN MFR MANUAL FOR RETURN TO SERVICE.Jan 22, 2018 · N808MT · Bell 407 · Engine (Turbine/Turboprop)SDR 2018FA0000083Engine · making metalAIRCRAFT POWER WAS APPLIED, CREW OBSERVED ENGINE CHIP DETECTOR LIGHT CAME ON, WENT OFF AND THEN STAYED ON. REMOVED BOTH CHIP DETECTORS AND FOUND SIGNIFICANT METAL ON BOTH PLUGS. AIRCRAFT WAS GROUNDED.Jan 2, 2018 · N873ST · Bell 407 · Engine (Turbine/Turboprop)SDR 2018FA0000084Bearing · failedDURING A SCHEDULED AIRFRAME EVENT NR 3, AND ENGINE 150 HOUR INSPECTION, SIGNIFICANT METAL WAS FOUND ON BOTH ENGINE CHIP DETECTORS AND IN THE OIL SIDE OF THE CEFA FILTER ASSEMBLY. ENGINE WAS REMOVED AND SENT TO ENGINE SHOP FOR REPAIR. ENGINE WAS REINSTALLED Jan 2, 2018 · N874ST · Bell 407 · Engine (Turbine/Turboprop)SDR 2018FA0000085Engine · making metalAIRCRAFT POWER WAS APPLIED BY CREW FOR ENGINE START. CREW OBSERVED ENGINE CHIP DETECTOR LIGHT CAME ON. REMOVED BOTH CHIP DETECTORS AND FOUND SIGNIFICANT METAL ON BOTH PLUGS. AIRCRAFT WAS GROUNDED.Jan 2, 2018 · N876ST · Bell 407 · Engine (Turbine/Turboprop)SDR 2018FA0000090Bearing · failedDURING A NORMAL ENGINE SHUTDOWN, EXCESSIVE ENGINE NOISE WAS NOTED. SIGNIFICANT METAL WAS FOUND ON BOTH ENGINE CHIP DETECTORS. ENGINE WAS REMOVED AND SENT TO ENGINE SHOP FOR REPAIR. ENGINE WAS REPAIRED AND REINSTALLED. IT WAS RELAYED THAT THERE WERE SEVERAJan 1, 2018 · N875ST · Bell 407 · Engine (Turbine/Turboprop)SDR 2VKA2017122803Engine · making metalDURING FLIGHT, THE AIRCRAFT YAWED LEFT AND THE ENGINE CHIP DETECTOR LIGHT ILLUMINATED. THE PILOT LANDED THE AIRCRAFT IN A FIELD. MECHANIC INSPECTED THE ENGINE CHIP DETECTORS AND FOUND EXCESSIVE METAL ON THE DETECTORS. THE ENGINE WAS REPLACED.Dec 27, 2017 · N267SF · Bell 407 · Engine (Turbine/Turboprop)SDR QMLA2017120717136Bearing · leakingREPORTED SMOKE IN COCKPIT AND CABIN DURING BLEED AIR USE. PILOT RETURNED TO MAINTENANCCE BASE. INVESTIGATION SHOWS OIL GETTING INTO ENGINE COMPRESSOR AND BLEED AIR SYSTEM. SUSPECT FORM OVER OILING AFS FILTER. REPLACED AFS FILTER WITH A RECENTLY SERVICED FILTERDec 7, 2017 · N409GA · Bell 407 · Turbine Engine Compressor SectionSDR HEER20171205885Bearing · damagedENGINE REMOVED 11-5-17 FOR TURBINE OVERHAUL. #5 BEARING EXHIBITS BANDING ON BALL. REPLACED #5 BEARING.Dec 5, 2017 · N420PH · Bell 407 · Turbine Section
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