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 HEER20170125836Bearing · spalledENGINE REMOVED FOR NR 5 BEARING UPGRADE. REMOVED NR 5 BEARING DUE TO SPALLING ON OUTER RACE AT SPLIT. REPLACE WITH NEW.Jan 25, 2017 · N432PH · Bell 407 · Turbine SectionSDR ALGA2017020141400Bearing · deterioratedDURING CLIMB FROM FCN, ENGINE CHIP LIGHT ILLUMINATED. AIRCRAFT RETURNED TO FCN. METAL CHIPS WERE FOUND ON PLUG. REPLACED ENGINE.Jan 24, 2017 · N410AL · Bell 407 · Engine (Turbine/Turboprop)SDR HEER20170120831Bearing · spalledENGINE REMOVED FOR NR 5 BEARING UPGRADE. THE BEARING EXHIBITED SPALLING OF OUTER RACE AT SPLIT. REPLACED THE BEARING.Jan 20, 2017 · N457PH · Bell 407 · Turbine SectionSDR HEER20170119832Bearing · spalledENGINE REMOVED TO UPGRADE THE NR 5 BEARING. OUTER RACE WAS SPALLING AT SPLIT. REPLACED THE BEARING.Jan 19, 2017 · N438PH · Bell 407 · Turbine SectionSDR HEER20161201652Bearing · spalledENGINE REMOVED 11-14-16 DUE TO METAL IN OIL. SECONDARY BEARING EXHIBITED SPALLING BALLS. REPLACED WITH NEW SECONDARY BEARING.Dec 1, 2016 · N441PH · Bell 407 · Turbine Engine Accessory DriveSDR HEER20161122571Bearing · spalledNR 5 TURBINE BEARING EXHIBITS SPALLING ON OUTER RACE AND ON SEVEN BALLS. REPLACED THE NR 5 BEARING.Nov 22, 2016 · N420PH · Bell 407 · Turbine SectionSDR HEER20161121558Bearing · spalledENGINE REMOVED 11-4-16 DUE TO BROKEN DRILL BIT IN 6&7 OIL PASSAGE. #5 BEARING EXHIBITED SPALLING AT OUTER RACE SPLIT. INSTALLED UPGRADED BEARING.Nov 21, 2016 · N452PH · Bell 407 · Turbine SectionSDR HEER20161118555Bearing · spalledREMOVED NR 5 BEARING DUE TO SPALLING ON OUTER RACE AT SPLIT. UPGRADED THE NR 5 BEARING.Nov 18, 2016 · N494PH · Bell 407 · Turbine SectionSDR HEER20161118556Bearing · spalledNR 5 BEARING EXHIBITED SPALLING ON OUTER RACE AT SPLIT AND BALLS. INSTALLED UPGRADED NR 5 BEARING.Nov 18, 2016 · N441PH · Bell 407 · Turbine SectionSDR HEER20161117553Bearing · spalledNR 5 BEARING EXHIBITED SPALLING ON OUTER RACE SPLIT. REPLACED WITH NEW NR 5 BEARING.Nov 17, 2016 · N742PH · Bell 407 · Turbine SectionSDR HEER20161115551Bearing · spalledENGINE REMOVED 10-8-16 DUE TO CYCLED WHEELS. NR 5 BEARING EXHIBITED SPALLING ON OUTER RACE SPLIT AND BALLS. INSTALLED NEW UPGRADED BEARING.Nov 15, 2016 · N429PH · Bell 407 · Turbine SectionSDR QMLA2016110916127Engine · making metalEXCESSIVE CHIPS ON UPPER AND LOWER ENGINE CHIP PLUGS, CHIP LIGHT ILLUMINATED AFTER ENGINE START BUT BEFORE TAKE OFF. ENGINE WAS SHUT DOWN BY PILOT, MECHANIC WAS CALLED AND DETERMINED THERE WAS ENOUGH MATERIAL ON THE PLUG TO REQUIRE ENGINE CHANGE BY THE SPECIFINov 9, 2016 · N192AM · Bell 407 · Engine (Turbine/Turboprop)SDR QMLA2016110316128Stud · brokenUPPER STUD HOLDING TURBINE TO ENGINE GEAR BOX BROKE OFF AT GEARBOX 12 O'CLOCK ON BACK OF ENGINE GEAR BOX. THIS WAS FOUND DURING INSPECTION OF THE ENGINE FOR AAIP COMPLIANCE.Nov 3, 2016 · N374AL · Bell 407 · Engine (Turbine/Turboprop)SDR QMLA2016110116122Latch · stuckON POST FLIGHT CHECK AT BASE, LITTER DOOR HANDLE BECAME STUCK IN THE OPEN POSITION. THIS HAS HAPPENED SEVERAL TIMES IN RECENT PAST. THE DECISION WAS MADE TO REPLACE THE ENTIRE LATCH ASSY AND MECHANISM. POSSIBLE CAUSES COULD BE THAT MEDICAL CREW MEMBERS ARE USINov 1, 2016 · N459AM · Bell 407 · Passenger/Crew DoorsSDR HEER20161027446Bearing · spalledENGINE REMOVED 10-9-16 FOR NR 5 BEARING REPLACEMENT. NR 5 BEARING EXHIBITED SPALLED OUTER RACE AT SPLIT. INSTALLED UPGRADED NR 5 BEARING.Oct 27, 2016 · N440PH · Bell 407 · Turbine SectionSDR HEER20161027447Case · crackedOUTER COMBUSTION CASE REMOVED 10-19-16 DUE TO CRACK AROUND FUEL NOZZLE BOSS. PART WILL BE RETURNED TO FOR INVESTIGATION AND WARRANTY REIMBURSEMENT.Oct 27, 2016 · N451PH · Bell 407 · Turbine SectionSDR HEER20161024438Bearing · spalledENGINE REMOVED 10-15-16 FOR NR 5 BEARING UPGRADE. NR 5 BEARING EXHIBITED SPALLING ON OUTER RACE SPLIT. REPLACED WITH NEW NR 5 BEARING.Oct 24, 2016 · N427PH · Bell 407 · Turbine SectionSDR HEER20161013385Bearing · spalledNR 5 BEARING EXHIBITED SPALLING AT OUTER RACE SPLIT.Oct 13, 2016 · N445PH · Bell 407 · Turbine SectionSDR HEER20160929284Bearing · spalledENGINE REMOVED 9-10-16 DUE TO NR 5 BEARING UPGRADE. THE NR 5 BEARING EXHIBITS SPALLING AT OUTER RACE SPLIT. REPLACED WITH NEW NR 5 BEARING.Sep 29, 2016 · N417PH · Bell 407 · Turbine SectionSDR HEER20160926242Bearing · spalledENGINE REMOVED 9-6-16 FOR #5 BEARING UPGRADE. NR 5 BEARING EXHIBITED SPALLING AT OUTER RACE SPLIT. REPLACED WITH NEW BEARING.Sep 26, 2016 · N723PH · Bell 407 · Turbine SectionSDR AC2R2016092201Check Valve · wornREPAIR FOR METAL IN OIL, SPALLED PTO BALL IN AUGUST. FOUND INTERNAL CHECK VALVE POPPET GUIDE WORN AND SPRING FELL DOWN. THIS COULD ALLOW ACFT OIL TANK TO DRAIN INTO ENGINE. ALERTED MFG AND FIGURED IT TO BE AN ISOLATED INCIDENT. THIS WEEK PULLED 2 MORE OIL Sep 22, 2016 · N402LW · Bell 407 · Turbine Engine Oil SystemSDR HEER20160921237Bearing · spalledENGINE REMOVED 9-16-16 DUE TO METAL IN OIL. TORQUE METER ROLLER BEARING EXHIBITS SPALLING OF INNER RACE. REPLACED TORQUE METER ROLLER BEARING.Sep 21, 2016 · N439PH · Bell 407 · Turbine Engine Accessory DriveSDR HEER20160920232Bearing · spalledENGINE REMOVED 9-2-16 TO UPGRADE NR 5 BEARING AND TURBINE OVERHAUL. NR 5 BEARING EXHIBITED SPALLING AT OUTER RACE SPLIT. REPLACED BEARING.Sep 20, 2016 · N491PH · Bell 407 · Turbine SectionSDR HEER20160920233Bearing · spalledENGINE REMOVED 8-29-16 FOR UPGRADE OF NR 5 BEARING AND COMBUSTION LINER. NR 5 BEARING EXHIBITED SPALLING AT OUTER RACE SPLIT, REPLACED BEARING.Sep 20, 2016 · N415PH · Bell 407 · Turbine SectionSDR HEER20160920234Bearing · spalledENGINE REMOVED 9-2-16 FOR NR 5 BEARING UPGRADE. NR 5 BEARING EXHIBITED SPALLING ON OUTER RACE AT SPLIT. REPLACED BEARING.Sep 20, 2016 · N408PH · Bell 407 · Turbine SectionSDR HEER20160912129Bearing · spalledENGINE REMOVED 8-20-16 FOR NR 5 BEARING UPGRADE. NR 5 BEARING EXHIBITED SPALLING OUTER RACE AT SPLIT. REPLACED BEARING.Sep 12, 2016 · N422PH · Bell 407 · Turbine SectionSDR HEER20160912130Bearing · spalledENGINE REMOVED 8-20-16 FOR NR 5 BEARING UPGRADE. NR 5 BEARING EXHIBITED SPALLING AT OUTER RACE SPLIT. REPLACED BEARING.Sep 12, 2016 · N433PH · Bell 407 · Turbine SectionSDR HEER20160823088Bearing · spalledENGINE REMOVED FOR NR 5 BEARING UPGRADE. NR 5 BEARING SPALLED ON OUTER RACE AT SPLIT. REPLACED THE BEARING.Aug 23, 2016 · N447PH · Bell 407 · Turbine SectionSDR HEER20160822089Bearing · spalledTURBINE REMOVED FOR OVERHAUL. FOUND NR 5 BEARING SPALLING ON OUTER RACE AT SPLIT. REPLACED WITH NEW BEARING.Aug 22, 2016 · N426PH · Bell 407 · Turbine SectionSDR HEER20160819060Bearing · spalledENGINE NR 5 BEARING EXHIBITED ONSET OF SPALLING AT OUTER RACE SPLIT. REPLACED THE NR 5 BEARING.Aug 19, 2016 · N430PH · Bell 407 · Turbine SectionSDR HEER20160819062Bearing · spalledENGINE HAD SPALLING ON OUTER RACE AND BALLS OF NR 5 BEARING. REPLACED THE NR 5 BEARING.Aug 19, 2016 · N452P · Bell 407 · Turbine SectionSDR HEER20160819063Bearing · spalledENGINE NR 5 BEARING REMOVED AND REPLACED DUE TO SPALLING ON OUTER RACE.Aug 19, 2016 · N4999 · Bell 407 · Turbine SectionSDR HEER20160815061Bearing · spalledENGINE NR 5 BEARING EXHIBITED SPALLING AT OUTER RACE SPLIT. REPLACED THE NR 5 BEARING.Aug 15, 2016 · N411PH · Bell 407 · Turbine SectionSDR QMLA2016081216093Compressor · crackedCRACK IN THE COMPRESSOR SCROLL, APPROXIMATELY 1 1/4 INCH LONG.Aug 12, 2016 · N105AM · Bell 407 · Turbine Engine Compressor SectionSDR HEER20160802931Bearing · spalledENGINE REMOVED 7-23-16 FOR O/H AND 2000 HR INSPECTION. NR 5 BEARING EXHIBITED SPALLING AT OUTER RACE SPLIT. REPLACED WITH NEW NR 5 BEARING.Aug 2, 2016 · N740PH · Bell 407 · Turbine SectionSDR HEER20160729926Bearing · spalledENGINE REMOVED 7-13-16 FOR TURBINE OVERHAUL. NR 5 BEARING EXHIBITED SPALLING AT OUTER RACE SPLIT. INSTALLED A NEW NR 5 BEARING.Jul 29, 2016 · N406PH · Bell 407 · Turbine SectionSDR HEER20160728925Bearing · spalledNR 5 BEARING SPALLING ON OUTER RACE SPLIT. INSTALLED A NEW BEARING.Jul 28, 2016 · N404PH · Bell 407 · Turbine SectionSDR HEER20160726921Bearing · spalledENGINE REMOVED DUE TO METAL IN OIL. NR 5 BEARING EXHIBITED EXCESSIVE SPALLING OF BALLS AND DAMAGED SEPERATOR. REPLACED THE NR 5 BEARING.Jul 26, 2016 · N443PH · Bell 407 · Turbine SectionSDR EVCA201607221Computer · failedUPON DEPARTURE FROM HOSPITAL HELIPAD AT APPROXIMATELY 100 FT AGL PILOT REPORTED EXPERIENCING A COMPLETED FADEC FAILURE. FADEC FAIL AND FADEC MAN CAUTION LIGHTS ILLUMINATED AND FADEC WARNING HORN SOUNDED. N2 AND NR IMMEDIATELY DECREASED. UPON INSPECTION THE FADJul 22, 2016 · N499AE · Bell 407 · Fuel Controlling SystemSDR HEER20160721909Bearing · spalledENGINE REMOVED 7-3-16 DUE TO TURBINE O/H. NR 5 BEARING EXHIBITS SPALLING AT OUTER RACE SPLIT. INSTALLED NEW NR 5 BEARING.Jul 21, 2016 · N451PH · Bell 407 · Turbine SectionSDR HEER20160719871Bearing · spalledENGINE REMOVED 7-5-16 DUE TO WHINING NOISE. FOUND NR 5 BEARING SPALLED AT OUTER RACE SPLIT. BEARING REPLACED.Jul 19, 2016 · N439PH · Bell 407 · Turbine SectionSDR HEER20160713822Bearing · spalledENGINE REMOVED 7-2-16 FOR TURBINE O/H AND 2000 HR INSPECTION. NR 5 BEARING EXHIBITS SPALLING AT OUTER RACE SPLIT. REPLACED NR 5 BEARING.Jul 13, 2016 · N496PH · Bell 407 · Turbine SectionSDR HEER20160711823Bearing · spalledENGINE DISASSEMBLED 6-21-16 DUE TO SQUEALING NOISE AND CHIP LIGHT ON SHUTDOWN. TURBINE DISASSEMBLED DUE TO NR 1 WHEEL BLADE FAILURE. NR 5 BEARING REMOVED DUE TO SPALLING ON OUTER RACE AT SPLIT. REPLACED NR 5 BEARING.Jul 11, 2016 · N408PH · Bell 407 · Turbine SectionSDR HEER20160707780Bearing · spalledTURBINE REMOVED 6-21-15 FOR OVERHAUL DUE TO METAL IN OIL. REMOVED NR 5 BEARING DUE TO SPALLING. FOUND SPALLING ON OUTER RACE AT SPLIT. SCRAP PART AND REPLACED WITH NEW BEARING.Jul 7, 2016 · N412PH · Bell 407 · Turbine SectionSDR HEER20160707782Bearing · spalledENGINE REMOVED 6-17-16 DUE TURBINE OVERHAUL. NR 5 BEARING REMOVED DUE TO SPALLING ON OUTER RACE AT SPLIT. REPLACED NR 5 BEARING.Jul 7, 2016 · N412P · Bell 407 · Turbine SectionSDR HEER20160705781Bearing · spalledENGINE REMOVED 6-24-16 DUE TO SMOKE WHEN IDLE IS ROLLED TO IDLE FROM FLY. NR 5 BEARING EXHIBITS SPALLING AT SPLIT. REPLACED BEARING.Jul 5, 2016 · N439PH · Bell 407 · Turbine SectionSDR 8MHR2016FA0000313Support · brokenOWNER/OPERATOR REPORTED METAL IN OIL. IAW MFG INSTRUCTIONS, THE NR 2 BEARING BORE AREA WAS EXAMINED WITH A BORESCOPE. FOUND THAT PIECES OF THE REAR SUPPORT, AFT OF THE BEARING RETAINING RING GROOVE, WERE BROKEN OFF, EVIDENTLY TRIGGERING THE CHIP LIGHT.Jun 29, 2016 · Turbine Engine Compressor SectionSDR EVCA201606272Throttle Cable · brokenPILOT REPORTED THAT THE THROTTLE LINKAGE WAS INOPERATIVE. DURING MAINTENANCE INSPECTION OF THE THROTTLE CONTROL IT WAS FOUND THAT THE CABLE WAS BROKEN UNDER THE PILOT'S SEAT PANEL NEAR THE LOCATION WHERE IT CONNECTS TO THE THROTTLE CONTROL TUBE LOCATED IN THEJun 27, 2016 · N342AE · Bell 407 · Power LeverSDR HEER20160623754Bearing · spalledENGINE REMOVED 6-11-16 FOR TURBINE OVERHAUL. NR 5 BEARING EXHIBITED SPALLING AT OUTER RACE SPLIT. REPLACED WITH NEW NR 5 BEARING.Jun 23, 2016 · N452PH · Bell 407 · Turbine SectionSDR HEER20160622752Bearing · spalledENGINE REMOVED 6-8-16 DUE TO METAL IN OIL. NR 5 BEARING HAD SEVERELY SPALLED BALLS AND CRACKED SEPARATOR. REPLACED WITH NEW NR 5 BEARING.Jun 22, 2016 · N441PH · Bell 407 · Turbine Section
Back to Allison 250-C47B