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 HEER20160621756Bearing · spalledENGINE REMOVED 6-14-16, DUE TO METAL ON CHIP PLUGS. NR 5 BEARING EXHIBITED SPALLING AT OUTER RACE SPLIT. REPLACED WITH NEW NR 5 BEARING.Jun 21, 2016 · N438PH · Bell 407 · Turbine SectionSDR HEER20160722910Turbine Wheel · failedENGINE REMOVED 6-21-16 DUE TO SQUEALING NOISE AND CHIP LIGHT ON SHUTDOWN. 1ST STAGE WHEEL REMOVED DUE TO BLADE FAILURE. PART RETURNED TO ROLLS ROYCE FOR FAILURE ANALYSIS WITH NR 1 NOZZLE. REPLACED 1ST STAGE WHEEL.Jun 21, 2016 · N408PH · Bell 407 · Turbine SectionSDR HEER20160722895Diffuser · separatedDURING EMS TAKEOFF AT 89-100 FT ENGINE HAD A BANG AND SEVERAL LOUD POPS. ENGINE REMOVED 6-3-16 DUE TO HARD LANDING. COMPRESSOR DIFFUSER EXHIBITED BRAZEMENT SEPARATING ON AFT BACKING PLATE. PART SENT TO MFG FOR FAILURE ANALYSIS.Jun 20, 2016 · N4999 · Bell 407 · Turbine Engine Compressor SectionSDR XHCR2016FA0000360Fuel Cell · leakingFUEL CELL, PN 407-362-633-101, SN 00777 MANUFACTURED IN 06/23/2006 WAS FOUND TO BE IN AN UNAIRWORTHY CONDITION DURING A ROUTINE 24 MONTH INSPECTION. IT IS THE METHOD OF FAILURE AND THE TT OF THE PART THAT HAS SPURRED THIS REPORT. THE FUEL CELL MATERIAL WAS FJun 14, 2016 · N407CM · Bell 407 · Fuel StorageSDR XHCR2016FA0000362Fuel Cell · leakingFUEL CELL: PN 206-064-633-101, SN 85633 MANUFACTURED IN 06/20/04 WAS FOUND TO BE IN AN UNAIRWORTHY CONDITION DURING A ROUTINE 24 MONTH INSPECTION. IT IS THE METHOD OF FAILURE AND THE TRENDING OF FAILURES OF CELLS MADE BY THIS COMPANY THAT HAS SPURRED THIS REPJun 14, 2016 · N569T · Bell 206L4 · Fuel StorageSDR HEER20160610696Bearing · spalledENGINE REMOVED 5-21-16 FOR TURBINE O/H. NR 5 BEARING EXHIBITS SPALLING ON OUTER RACE AT SPLIT. REPLACED NR 5 BEARING.Jun 10, 2016 · N448PH · Bell 407 · Turbine SectionSDR M3XA2016060805Engine · making metalIN CRUISE FLIGHT, ENGINE CHIP LIGHT ILLUMINATED. ACFT MADE A SAFE LANDING IN A FIELD.Jun 8, 2016 · N889MT · Bell 407 · Engine (Turbine/Turboprop)SDR HEER20160607693Bearing · spalledENGINE REMOVED 5-26-16 FOR REPAIR DUE TO TURBINE O/H AND 2000 HR INSPECTION. TURBINE NR 5 BEARING SPALLING AT BEARING OUTER RACE SPLIT. REPLACED WITH NEW NR 5 BEARING.Jun 7, 2016 · N424PH · Bell 407 · Turbine SectionSDR HEER20160607694Bearing · spalledENGINE REMOVED 5-28-16 FOR REPAIR DUE TO TURBINE O/H AND 2000 HR INSPECTION. TURBINE NR 5 BEARING SPALLING ON OUTER RACE SPLIT. REPLACED WITH NEW NR 5 BEARING.Jun 7, 2016 · N421PH · Bell 407 · Turbine SectionSDR HEER20160531603Bearing · spalledTURBINE REMOVED 5-19-16 FOR METAL IN OIL. REMOVED NR 5 BEARING DUE TO PROBABLE SPALLING ON OUTER RACE AT SPLIT. INSPECTED BEARING FOUND SPALLING ON OUTER RACE AT SPLIT. SCRAP PART AND REPLACED WITH NEW.May 31, 2016 · N348A · Bell 407 · Turbine SectionSDR HEER20160526592Bearing · spalledENGINE REMOVED 5-15-16 DUE TO TURBINE O/H. METAL FOUND ON GEARBOX CHIP PLUGS AT TIME OF DISASSEMBLY. REASON FOUND TO BE TURBINE NR 5 BEARING SPALLING AT OUTER RACE SPLIT AND BEARING BALLS. INSTALLED NEW NR 5 BEARING.May 26, 2016 · N408PH · Bell 407 · Turbine SectionSDR HEER20160509469Bearing · spalledENGINE DISASSEMBLED 4-29-16, DUE TO TURBINE OVERHAUL, COMPRESSOR IMPELLER RETIREMENT, CEB-72-6081, 150, 300 & 2000 HR INSPECTIONS. NR 5 BEARING, REMOVED DUE TO SPALLING ON INNER RACE AT SPLIT. REPLACED NR 5 BEARING.May 9, 2016 · N445PH · Bell 407 · Turbine SectionSDR HEER20160509470Bearing · spalledENGINE REMOVED 4-29-16, DUE TO TURBINE O/H, COMPRESSOR N1 SHAFTING, 150, 300 & 2000 HR INSPECTIONS. TURBINE NR 5 BEARING EXHIBITED SPALLING AT OUTER RACE SPLIT. REPLACED NR 5 BEARING.May 9, 2016 · N495PH · Bell 407 · Turbine SectionSDR QMLA2016050616046Transducer · unserviceableTHE PILOT REPORTED THAT SHORTLY AFTER LEVEL OFF, ACFT EXPERIENCED AN ABNORMAL INCREASE IN TORQ ASSOCIATED WITH POWER ADJUSTMENTS FOR CRUISE POWER. INCREASE IN TORQ WAS IN THE 5 MIN POWER RANGE WITH AN IMMEDIATE DECREASE IN TORQ WITHOUT ANY COLLECTIVE MOVEMENTMay 6, 2016 · N610PA · Bell 407 · Fuel Controlling SystemSDR QMLA2016050416045Throttle Cable · shearedTHROTTLE CABLE SHEARED INTERNALLY AT APPROX 10" FROM COLLECTIVE TWIST GRIP CONNECTION POINT, WHERE CABLE ROUTE IS NAVIGATING A CORNER, DIRECTION CHANGE. THROTTLE CABLE MFG DATE IS 1998, ACFT DOM IS 1999, THIS CABLE HAS NEVER BEEN CHANGED. THIS WAS DISCOVEREDMay 4, 2016 · N408GA · Bell 407 · Power LeverSDR M3XA2016042804Chip Detector · activatedIN CRUSE FLIGHT WITH PATIENT ON BOARD, TR CHIP LIGHT ILLUMINATED. ACFT SAFELY LANDED. PERFORMED INSPECTION IAW MM. ACFT BIS.Apr 28, 2016 · N241MT · Bell 407 · Tail Rotor Drive Indicating SystemSDR HEER20160414378Bearing · spalledENGINE REMOVED 3-15-16 DUE TO CYCLED TURBINE WHEELS. NR 5 BEARING EXHIBITED SPALLING AT OUTER RACE SPLIT. REPLACED BEARING.Apr 14, 2016 · N4999 · Bell 407 · Turbine SectionSDR HEER20160412377Bearing · spalledENGINE REMOVED 3-8-16, DUE TO CYCLED OUT 1ST AND 2ND STAGE TURBINE WHEELS. REMOVED NR 5 BEARING DUE TO SPALLING ON OUTER RACE AT SPLIT. REPLACED WITH NEW NR 5 BEARING.Apr 12, 2016 · N434PH · Bell 407 · Turbine SectionSDR QMLA2016040716038Throttle Cable · shearedDURING PREFLIGHT AS THE PILOT WAS GOING THROUGH THE CHECKLIST, THE THROTTLE CHECK DID NOT FEEL RIGHT. HE ASKED A MED CREW MEMBER TO TAKE A FLASHLIGHT & LOOK THROUGH THE SCREENS IN THE RT ENG COWLING TO SEE IF HE COULD VIEW ANY MOVEMENT IN THE THROTTLE CABLE AApr 7, 2016 · N407LN · Bell 407 · Power LeverSDR HEER20160406364Bearing · spalledENGINE REMOVED 3-5-16 DUE TO IMPELLER RETIREMENT. NR 5 BEARING EXHIBITS SPALLING AT OUTER RACE SPLIT. REPLACED NR 5 BEARING.Apr 6, 2016 · N496PH · Bell 407 · Turbine SectionSDR QMLA2016040416033Chip Detector · contaminatedCHIP LIGHT ILLUMINATED MOMENTARILY INFLIGHT, FLICKERED TWICE, G1000H RECORDED TWO EVENTS. DISCOVERED INSIGNIFICANT DEBRIS, IRREGULAR SHAPED FERROUS METAL PARTICLES ON TRANSMISSION LOWER CHIP DETECTOR. COMPLETED 15 MIN GND RUN WITH NO FURTHER INDICATIONS. WOApr 4, 2016 · N408LN · Bell 407 · Rotor Drive Indicating SystemSDR M3XA2016040103Warning System · false activationANTI-ICE LIGHT ON AT 710 W 65% TQ. LOWERED COLLECTIVE & REDUCED TO NORMAL RANGE. PILOT DECIDED TO TRANSPORT PATIENT USING GND & RETURN TO BASE. DURING INSPECTION NO RECORDED EXCEEDANCE, ACFT INSPECTED, GND RUN & OPERATIONS CHECK FLIGHT COMPLETED, NO DEFECTSMar 31, 2016 · N522MT · Bell 407 · Ice/Rain Protection SystemSDR CXVA2016033000093Longeron · crackedDURING A SCHEDULED INSPECTION A CRACKED ENGINE PAN WAS FOUND. THE CRACK WAS IN THE AREA OF THE AFT LEG OF THE RS, FWD BI-POD MOUNT. THE CRACK WAS EXTENDING FROM THE UPPER EDGE OF THE PAN AT FS 167.33, RBL 12.2, WL 70.57 WITH 2 LEGS OF THE CRACK RUNNING GENERMar 30, 2016 · N407KH · Bell 407 · Fuselage Main, Longeron/StringerSDR HEER20160328335Bearing · spalledENGINE REMOVED 2-22-16, DUE TO TURBINE O/H. NR 5 BEARING EXHIBITED SPALLING OF OUTER RACE AT SPLIT. REPLACED NR 5 BEARING DUE TO SPALLING.Mar 28, 2016 · N410PH · Bell 407 · Turbine SectionSDR K2DA2016032520151Engine · making metalDURING NORMAL CRUISE FLIGHT, THE PILOT REPORTED THE ENG CHIP LIGHT ILLUMINATED. THE PILOT PERFORMED A POWERED PRECAUTIONARY LANDING ON A PRIVATE, CLEARED LOT WITHOUT INCIDENT. AFTER INVESTIGATION OF THE CHIP PLUGS, BY A CERTIFICATED MECHANIC, IT WAS DISCOVERMar 25, 2016 · N808PH · Bell 407 · Engine (Turbine/Turboprop)SDR HEER20160310254Bearing · spalledENGINE REMOVED 2-19-16, DUE TO TURBINE OVERHAUL. NR 5 BEARING EXHIBITED SPALLING AT OUTER RACE SPLIT. NEW NR 5 BEARING INSTALLED.Mar 10, 2016 · N450PH · Bell 407 · Turbine SectionSDR HEER20160310255Bearing · spalledENGINE REMOVED 2-3-16, DUE TO WHEEL RETIREMENT. NR 5 BEARING EXHIBITED SPALLING AT OUTER RACE SPLIT. INSTALLED REPLACEMENT BEARING.Mar 10, 2016 · N612PH · Bell 407 · Turbine SectionSDR QMLA2016030816019Bearing · separatedMAIN ROTOR FEATHERING BEARING ELASTOMER SEPARATION BEYOND LIMITS, FOUND DURING AIRWORTHINESS CHECK. THIS ACFT REMAINS OUT OF SERVICE AT THIS TIME AWAITING A REPAIR TO THE MRH INSTALLING NEW FEATHERING BEARINGS.Mar 8, 2016 · N193AM · Bell 407 · Main Rotor HeadSDR QMLA2016030816020Bearing · separatedMAIN ROTOR FEATHERING BEARING ELASTOMER SEPARATION BEYOND LIMITS, FOUND DURING AIRWORTHINESS CHECK. THIS ACFT REMAINS OUT OF SERVICE AT THE TIME OF THIS SUBMISSION AWAITING A REPAIR TO THIS MRH.Mar 8, 2016 · N124AM · Bell 407 · Main Rotor HeadSDR QMLA2016030616018Bearing · wornDURING ENG RUN UP FOR TAKEOFF, WHEN ENG REACHED 100% RPM THE ACFT EXPERIENCED AN INCREASED MAIN ROTOR VIBRATION. AFTER TROUBLESHOOTING, DETERMINED MAIN ROTOR HUB ASSEMBLY BEARINGS WORN. THIS ACFT REMAINS OUT OF SERVICE AT THIS TIME AWAITING A REPLACEMENT MAIMar 6, 2016 · N223AM · Bell 407 · Main Rotor HeadSDR QMLA2016030116015Engine · making metalDURING A ROUTINE INSPECTION 300 HR, MECHANIC REMOVED THE FITTING TO INSPECT THE NR 6 - 7 NOZZLE. METAL WAS FOUND IN & AROUND THE SCREEN. THIS IS NONFERROUS METAL. THE OIL PUMP IS COMING APART. THE ENG IS REMOVED & WAITING FOR NEW ONE TO ARRIVE. OIL SAMPLEMar 1, 2016 · N712GA · Bell 407 · Engine (Turbine/Turboprop)SDR HEER20160224241Bearing · spalledREMOVED 1-22-16 DUE TO TURBINE CRACKED EXHAUST COLLECTOR. NR 5 BEARING SPALLING AT OUTER RACE SPLIT. INSTALLED NEW NR 5 BEARING.Feb 24, 2016 · N428PH · Bell 407 · Turbine SectionSDR 2016FA0000080Blade · cracked4.5 INCH CRACK IN THE UPPER AND LOWER MAIN ROTOR BLADE SKIN AT BS 91.Feb 9, 2016 · N745BW · Doug 600N · Main Rotor BladesSDR CA160209008Blade · delaminated(CAN) PILOT HEARD SINGLE BANG DURING HELI SKI OPERATIONS ENROUTE TO HELI PAD. PERFORMED FLY PAST FOR CHECK FROM GROUND. NO INSTRUMENT OR FLIGHT ANOMALIES FOUND. NORMAL LANDING AT BASE WAS PERFORMED. AFTER SHUTDOWN THE INBD SIDE OF 1 TAIL ROTOR BLADE WAS FOUNFeb 8, 2016 · Bell 407 · Tail Rotor BladesSDR HEER20160202132Bearing · spalledENGINE WAS REMOVED 12-12-15 DUE TO VIBRATION. REPLACED NR 5 BEARING DUE TO SPALLING ON OUTER RACE. PART REPLACED.Feb 2, 2016 · N439PH · Bell 407 · Turbine SectionSDR CA160201006Engine · smoke(CAN) ENGINE SMOKING WHEN THROTTLE REDUCED TO IDLE AND BELOW.Jan 30, 2016 · Bell 407 · Engine (Turbine/Turboprop)SDR HEER20160129129Bearing · spalledNR 5 BEARING EXHIBITED SPALLING AT OUTER RACE SPLIT. REPLACED BEARING.Jan 29, 2016 · N438PH · Bell 407 · Turbine SectionSDR HEER20160129130Bearing · spalledENGINE REMOVED 1-16-2016, DUE TO METAL ON UPPER AND LOWER CHIP PLUGS. REPLACED NR 5 BEARING DUE TO SPALLING ON OUTER RACE, BALLS AND DAMAGED SEPERATOR. REPLACED BEARING.Jan 29, 2016 · N494PH · Bell 407 · Turbine SectionSDR CA160125016Relief Valve · failed(CAN) THE FOLLOWING HAS BEEN REPORTED TO MFG: EXPERIENCED A HYDRAULIC FAILURE AND HYDRAULIC LIGHT. THE SYS CAME BACK ON AFTER 5 SECONDS AND ON RETURN TO THE MAINTENANCE FACILITY THE PILOT REPORTED AN UNUSUAL NOISE COMING FROM THE TRANSMISSION DECK AREA. THEJan 20, 2016 · Bell 407 · Hydraulic System, MainSDR QMLA2016011916002Chip Detector · contaminatedTAIL ROTOR CHIP LIGHT ILLUMINATED IN FLIGHT. PERFORMED PRECAUTIONARY LANDING AT NEARBY AIRFIELD. FOUND ONE SMALL SLIVER ON TAIL ROTOR CHIP PLUG. GEARBOX WAS RECENTLY REPLACED, DETERMINED TO MOST LIKELY BE BREAK IN WEAR.Jan 19, 2016 · N150AM · Bell 407 · Tail Rotor Drive Indicating SystemSDR HDNA20160119006Ecu · failedENGINE CONTROL UNIT FAILED IN CRUISE FLIGHT.Jan 19, 2016 · N922TG · Bell 407 · Fuel Control/Turbine EnginesSDR CA160217002Blades · damaged(CAN) BOTH OCCUPANTS OF ACFT NOTICED AN UNUSUAL NOISE COMING FROM THE ENGINE. A PRECAUTIONARY LANDING WAS MADE AND ENGINE SHUTDOWN. UPON INSPECTION IT WAS NOTICED THAT THE BLADES ON BOTH TURBINE DISKS HAD STARTED TO RUB AGAINST THE OUTER CASING. ENGINE REDec 31, 2015 · Bell 407 · Turbine SectionSDR H44R2016012000001Seal · deterioratedNOTICED LOSS OF TORQUE METER INDICATION AND FLUCTUATING TRANSMISSION OIL PRESSURE. TURNED BACK, TO RETURN TO PIER. ENGINE CHIP LIGHT CAME ON, WHILE LANDING ON THE PIER TRANSMISSION OIL PRESSURE LOW LIGHT CAME ON.AT ARRIVAL, NOTICED OIL UNDER ACFT, BELOW THE BDec 28, 2015 · N406TD · Bell 407 · Turbine Engine Oil SystemSDR M3XA2015121403Indication Sys · erraticAFTER A TAKEOFF FROM A SCENE FLIGHT WITH A PATIENT ONBOARD, THE PILOT REPORTED THAT THE MGT READINGS BECAME ERRATIC, DISPLAYING INTERMITTENT VALUES FROM 150 CELSIUS TO NORMAL OPERATION TEMPERATURE. THE PILOT SAID THAT THE FLUCTUATIONS WOULD LAST FOR 5 - 10 SEDec 14, 2015 · N429MT · Bell 407 · Engine Temperature Indicating SystemSDR HEER201509015Bearing · spalledENGINE REMOVED 11-17-15 DUE TO TURBINE O/H. NR 5 BEARING EXHIBITED SPALLING AT OUTER RACE SPLIT. SCRAPPED AND REPLACED BEARING.Dec 9, 2015 · N742PH · Bell 407 · Turbine SectionSDR HEER20151207954Bearing · spalledTURBINE REMOVED 10-9-15 FOR HOT END INSPECTION DUE TO ENGINE HAIR NET INGESTION. REMOVED NR 5 BEARING DUE TO SPALLING OUTER RACE AT SPLIT. SCRAPPED PART AND REPLACED WITH NEW.Dec 7, 2015 · N442PH · Bell 407 · Turbine SectionSDR HEER20151202951Bearing · spalledENGINE REMOVED 10-28-15 DUE TO TURBINE OVERHAUL. NR 5 BEARING EXHIBITED SPALLING OF OUTER RACE AT SPLIT. INSTALLED NEW PART.Dec 2, 2015 · N474A · Bell 407 · Turbine SectionSDR HEER20151202952Bearing · spalledENGINE REMOVED 11-17-15 DUE TO SUDDEN STOPPAGE, INSPECTION. NR 5 BEARING EXHIBITED SPALLING BALLS AND OUTER RACE AT SPLIT. INSTALLED NEW PART.Dec 2, 2015 · N420PH · Bell 407 · Turbine SectionSDR HEER20151123925Bearing · spalledENGINE REMOVED 9-26-15, DUE TO TURBINE O/H, COMPRESSOR N1 SHAFTING AND NR 2 BEARING, GB CEB 72-6081, PICCOLO TUBE, 150, 300 AND 2000 HR INSPECTIONS. REPLACED NR 5 BEARING DUE TO SPALLING ON OUTER RACE AT SPLIT. INSTALLED NEW NR 5 BEARING.Nov 23, 2015 · N498PH · Bell 407 · Turbine SectionSDR HEER20151123926Bearing · spalledENGINE REMOVED 10-20-15, DUE TO METAL IN OIL. NR 5 BEARING EXHIBITED SPALLING OF OUTER RACE, BALLS AND DAMAGED SEPARATOR. PART SCRAPPED.Nov 23, 2015 · N431P · Bell 407 · Turbine Section
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