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 QMLA2015111715107Fuel Cap · misinstalledIN ROUTE TO MEDICAL, THE CREW SMELLED FUEL VAPORS IN CABIN & IDENTIFIED FUEL ON RT PAX DOOR WINDOW. THE PILOT MADE A NORMAL LANDING. THE MECHANIC RESPONDED & IDENTIFIED THAT THE FUEL CAP HAD NOT BEEN PROPERLY SEATED WHEN INSTALLED. HE RESEATED THE GAS CAP &Nov 17, 2015 · N408SH · Bell 407 · Fuel StorageSDR CA160204003Actuator · faulty(CAN) THE PILOTS REPORTED THE AFCS WOULD NOT PASS THE IBIT TEST AND DURING FLIGHT THE ACFT PITCHED UPWARD UNCOMMAND. CHANGING THE FCC, FCC 407-074-009-101, ELIMINATED ALL THE FAULT CODES EXCEPT FOR THE 1 ASSOCIATED WITH THE PITCH SEMA VALIDITY. THE PITCH ACTNov 9, 2015 · Bell 407 · Auto Flight SystemSDR HEER20151104873Bearing · spalledENGINE REMOVED 10-24-15 DUE TO BROKEN 6 & 7 BOLT. NR 5 BEARING EXHIBITS PROBABLE SPALLING ON OUTER RACE SPLIT. PART WILL BE RETURNED TO MFG FOR FURTHER EVALUATION.Nov 4, 2015 · N407PH · Bell 407 · Turbine SectionSDR CA160119006Drive Shaft · sheared(CAN) AIRCRAFT WAS ABOUT TO DEPART WHEN THE TAIL ROTOR DRIVE SHAFT SHEARED ABOVE THE HORIZONTAL STABILIZER. NO INJURIES REPORTED AND ACFT RECEIVED LOCALIZED DAMAGE.Nov 2, 2015 · Bell 407 · Tail Rotor Drive ShaftSDR HEER20151028837Bearing · spalledNR 5 BEARING REMOVED DUE TO PROBABLE SPALLING AT OUTER RACE SPLIT.Oct 28, 2015 · N491PH · Bell 407 · Turbine SectionSDR HEER20151021833Bearing · spalledENGINE REMOVED DUE TO 1ST AND 2ND STAGE WHEEL RETIREMENT. NR 5 BEARING REMOVED DUE TO PROBABLE SPALLING AT OUTER RACE SPLIT.Oct 21, 2015 · N402PH · Bell 407 · Turbine SectionSDR CA160119008Spacer · unknown(CAN) THE FOLLOWING HAS BEEN REPORTED TO BELL: AFTER COMPLETION OF TB 407-15-115 FADEC REVERTED TO MANUAL MODE DURING FLIGHT DUE TO THE CONNECTION ON THE BACK OF THE FADEC MODE SWITCH BEING LOST. WHEN INSTALLING SPACER PER TB ON INSTRUMENT PANELS WITH OVERLAYOct 11, 2015 · Bell 407 · Electrical ConnectorsSDR HEER20151009767Bearing · spalledENGINE REMOVED 9-13-15 FOR TURBINE O/H. NR 5 BEARING EXHIBITS PROBABLE SPALLING AT OUTER RACE SPLIT. PART WILL BE RETURNED TO MFG FOR FURTHER EVALUATION.Oct 9, 2015 · N406PH · Bell 407 · Turbine SectionSDR HEER20151008766Bearing · spalledENGINE DISASSEMBLED 9-26-15 DUE TO METAL IN OIL. NR 5 BEARING REMOVED DUE TO SPALLING ON BALLS, CRACKED AND ERODED SEPERATOR. REPLACED NR 5 BEARING. PART WILL BE RETURNED TO MFG FOR FURTHER EVALUATION.Oct 8, 2015 · N440PH · Bell 407 · Turbine SectionSDR CA150924013Panel · cracked(CAN) DURING AN INSPECTION A 1.500" CRACK WAS FOUND ON THE UPPER RT SIDE TRANSMISSION DECK AREA. IT IS BESIDE THE RT TRANSMISSION PYLON MOUNT AT LONG 109.62" TO 111.62" AND LATERAL STA 9.46" TO 10.96". PART 9E CYCLES IS TOTAL RINS FOR THE PART ON THE ACFT.Sep 24, 2015 · Bell 407 · Fuselage Main, StructureSDR CA151006016Engine · power loss(CAN) AN ENGINE CHIP LIGHT ILLUMINATED, FOLLOWED BY A LOUD NOISE AND LOSS OF ENGINE POWER. THE PILOT REPORTEDLY CONDUCTED A SUCCESSFUL AUTOROTATION INTO A CLEARING, WHICH RESULTED IN MODERATE SPREADING OF THE CROSSTUBES BUT NO OTHER DAMAGES ARE EVIDENT.Sep 24, 2015 · Bell 407 · Engine (Turbine/Turboprop)SDR EVCA20150930Gearbox · unserviceableWHEN PERFORMING OIL CHANGE OF TAIL ROTOR GEARBOX, FOUND OIL REMAINING IN GEARBOX TO ONLY MEASURE APPROX 1 OZ. FLUID LOSS APPEARED TO ORIGINATE FROM TAIL ROTOR PITCH CHANGE CONTROL ROD SEAL.Sep 23, 2015 · N499AE · Bell 407 · Tail Rotor GearboxSDR CA150923015Support Angle · cracked(CAN) TAILBOOM, UPPER RT SUPPORT ANGLE CRACKED.Sep 23, 2015 · Bell 407 · Rotorcraft Tail BoomSDR HEER20150921706Bearing · spalledENGINE REMOVED 9-4-15, DUE TO TURBINE O/H. NR 5 BEARING EXHIBITS PROBABLE SPALLING AT OUTER RACE SPLIT. INSTALLED NEW NR 5 BEARING.Sep 21, 2015 · N403PH · Bell 407 · Turbine SectionSDR CA151006017Engine · making metal(CAN) AIRCRAFT EXPERIENCED AN ENGINE CHIP LIGHT ILLUMINATION. DURING INSPECTION, FOUND CHIPS ON BOTH ENGINE CHIP PLUGS, CONDUCTED THE CLEANING/FLUSHING STEPS IAW THE OPS & MM, AND DURING THE SUBSEQUENT 30-MINUTE GROUND RUN, THE ENGINE CHIP LIGHT ILLUMINATEDSep 18, 2015 · Bell 407 · Engine (Turbine/Turboprop)SDR CA150918001Cap · cracked(CAN) FREEWHEEL O/H CAP REQUIRED FPI IAW O/H CAP SENT TO AMO 45-13 CAP FAILED FPI, CRACK INDICATION.Sep 17, 2015 · Bell 407 · Tail Rotor Drive SystemSDR CA150918002Nut · galled(CAN) FREEWHEEL O/H NUT 406-040-543-105, HIGH TORQUE REQUIRED TO REMOVE NUT FROM CAP ASSEMBLY PN:206-040-942-101. BOTH NUT AND CAP, THREADS DESTROYED/GALLING.Sep 17, 2015 · Bell 407 · Main Rotor Drive SystemSDR HEER20150911697Bearing · spalledENGINE REMOVED 8-18-15 DUE TO TURBINE O/H AND 2000 HR INSPECTION. NR 5 BEARING REPLACED DUE TO PROBABILITY OF SPALLING AT OUTER RACE SPLIT. INSTALLED NEW NR 5 BEARING. PART WILL BE SENT TO MFG FOR FURTHER INSPECTION.Sep 11, 2015 · N408PH · Bell 407 · Turbine SectionSDR HEER20150827679Bearing · spalledENGINE REMOVED 8-9-15 DUE TO TURBINE OVERHAUL. NR 5 BEARING EXHIBITS PROBABLE SPALLING AT OUTER RACE SPLIT. REPLACED WITH SERVICEABLE BEARING.Aug 27, 2015 · N496PH · Bell 407 · Turbine SectionSDR QMLA2015082615079Blade · crackedON A PREFLIGHT, THE PILOT FOUND SMALL CRACKS ON EACH SIDE OF A RIVET ON THE END CAP OF A TAIL ROTOR BLADE. UPON REVIEW, THE ASSEMBLY WAS R & R. THIS ACFT HAS RETURNED TO SERVICE.Aug 26, 2015 · N284AM · Bell 407 · Tail Rotor BladesSDR 2A6D2015082525391Duplex Bearing · damagedMAIN TRANSMISSION PN 407-040-006-123, SN A-1061, TT 1436.9 MAKING METAL WAS PULLED FROM THE ACFT & DISASSEMBLED. INSPECTED & FOUND THE DUPLEX BEARING PN 407-340-032-010, SN ZS1127 INSTALLED. HAS TWO BALL BEARINGS STARTED PITTING & FAILING.Aug 25, 2015 · N105AM · Bell 407 · Main Rotor GearboxSDR 3HCR2015082501Diaphragm · rupturedTESTED PN 23073353, SN FF40252 BLEED VLV AS RECEIVED. UNIT FAILED PC CLOSING TEST, TOO LATE. ALSO FAILED PC2 LEAKAGE TEST.Aug 25, 2015 · N4916R · Bell 407 · Compressor Bleed ValveSDR HEER20150819589Bearing · spalledENGINE REMOVED 8-7-15, DUE TO METAL IN OIL. NR 5 BEARING REMOVED DUE TO PROBABLE SPALLING ON OUTER RACE SPLIT. RETURNED TO MFG FOR FURTHER EVALUATION.Aug 19, 2015 · N740PH · Bell 407 · Turbine SectionSDR HEER20150819590Bearing · spalledENGINE REMOVED 7-31-15 DUE TO METAL IN OIL. CAUSE DETERMINED TO BE TURBINE NR 5 BEARING SPALLING ON OUTER RACE. PART SUBMITTED FOR MFG WARRANTY CREDIT ON FAA 1439578661314. PART WILL BE RETURNED TO MFG FOR FAILURE INVESTIGATION. Aug 19, 2015 · N457PH · Bell 407 · Turbine SectionSDR HEER20150819592Case · leakingENGINE REMOVED 8-9-15 FOR TURBINE O/H. OUTER COMBUSTION CASE LEAKING AT ARMPITS WHEN PRESSURE TESTED. REPLACED WITH NEW COMBUSTION CASE.Aug 19, 2015 · N496PH · Bell 407 · Turbine Engine Combustion SectionSDR CA150817020Combustion Case · cracked(CAN) CRACKED COMBUSTION CAN AROUND FUEL NOZZLE BOSS WELD.Aug 16, 2015 · Bell 407 · Turbine Engine Combustion SectionSDR CA150820013Skin · cracked(CAN) UPON WASHING THE ACFT AFTER DAY OF FLYING, WHILE WASHING THE UNDERSIDE OF STAB. IT MOVED UPWARDS. WHEN IT SHOULD NOT HAVE MOVED AT ALL. UPON VISUAL INSPECTION A CRACK WAS FOUND OF 17" LONG. ACFT REMOVED FROM SERVICE.Aug 16, 2015 · Bell 407 · Horizontal Stabilizer, Plate/SkinSDR CA150817015Blade · debonded(CAN) EROSION STRIP ON OTBD LOWER BLADE DEBONDED AND PEELED BACK CAUSING A SUBSTANTIAL VERTICAL VIBRATION. PILOT LANDED WITHOUT INCIDENT AND BLADE WAS TEMPORARILY REPAIRED AND FLOWN BACK TO BASE FOR BLADE REPLACEMENT UNDER GRANTED FLIGHT AUTHORITY.Aug 14, 2015 · Bell 407 · Main Rotor BladesSDR QMLA2015081215071Unknown · malfunctionedFADEC FAULT LIGHT ILLUMINATED DURING FLIGHT. PILOT LANDED UNEVENTFULLY AS SOON AS PRACTICAL IAW RFM AT A LZ COMMONLY USED BY THE PROGRAM FOR AMBULANCE RENDEZVOUS. TROUBLE SHOT & COULD NOT DUPLICATE. RETURNED ACFT TO SERVICE. SUSPECTED N2 PICKUP MAY BE GOINAug 12, 2015 · N410UH · Bell 407 · Engine Indicating SystemSDR HEER20150811578Bearing · spalledENGINE REMOVED DUE TO A CRACKED EXHAUST COLLECTOR. NR 5 BEARING PROBABLE SPALLING ON OUTER RACE SPLIT. RETURNED TO MFG FOR FURTHER EVALUATION.Aug 11, 2015 · N433PH · Bell 407 · Turbine SectionSDR 2015FA0000346Bearing · failedMETAL FOUND DURING INSPECTION ON BOTH ENGINE CHIP DETECTORS. ENGINE REMOVED AND SENT TO APPROVED MFG FACILITY. TORQUE METER BEARING FOUND TO BE PRIMARY CASUE OF METAL IN OIL. DURING INSPECTION FOUND NR 3 TURBINE WHEEL FAILED INSPECTION AND WAS REPLACED. NUJul 27, 2015 · N9KH · Bell 407 · Engine Indicating SystemSDR ALGA2015071536040Bearing · failedENGINE CHIP LIGHT ILLUMINATED. CONTINUED TO BASE & LANDED. UPON TEARDOWN INSPECTION OF ENG FOUND MAJOR FAILURE OF NR 5 BEARING, THIS IS A RECURRING ISSUE.Jul 15, 2015 · N796RV · Bell 407 · Engine (Turbine/Turboprop)SDR HEER20150714421Bearing · spalledENGINE REMOVED 6-26-15 DUE TO METAL IN OIL. NR 5 BEARING EXHIBITED SPALLING OUTER RACE, BALLS & DAMAGED SEPARATOR. REPLACED WITH NEW NR 5 BEARING. PART WILL BE SUBMITTED TO FOR FURTHER EVALUATION.Jul 14, 2015 · N438PH · Bell 407 · Turbine SectionSDR HEER20150714422Bearing · spalledENGINE REMOVED 6-30-15 DUE TO METAL IN OIL. FOUND SPALLING AT OUTER RACE SPLIT & WORN POCKET AT SEPARATOR ON NR 5 BEARING. INSTALLED NEW NR 5 BEARING. PART WILL BE RETURNED FOR FURTHER EVALUATION.Jul 14, 2015 · N404PH · Bell 407 · Turbine SectionSDR JBZ20150821000001Shroud · crackedWHILE PERFORMING 150H ENGINE INSPECTION, FOUND AIR SHROUD ON FUEL NOZZLE ASSY CRACKED. INSPECTION CRITERIA DID NOT MENTION INSPECTION OF AIR SHROUD, BUT INSPECTION OF PORTIONS OF NOZZLE.Jul 14, 2015 · N45RX · Bell 407 · Fuel Injector NozzleSDR HEER20150706407Engine · noisyENGINE REMOVED 6-28-15 DUE TO WHINING. NR 5 BEARING REMOVED DUE TO PROBABLE SPALLING AT OUTER RACE SPLIT. PART WILL BE RETURNED FOR FURTHER EVALUATION.Jul 6, 2015 · N495PH · Bell 407 · Engine (Turbine/Turboprop)SDR HEER20150626390Bearing · spalledTURBINE REMOVED FOR CRACKED EXHAUST COLLECTOR. REMOVED NR 5 BEARING DUE TO PROBABLE SPALLING ON OUTER RACE AT SPLIT. SCRAP PART & REPLACE WITH NEW. PART WILL BE RETURNED FOR FURTHER EVALUATION.Jun 26, 2015 · N417PH · Bell 407 · Turbine SectionSDR QMLA2015061615050Engine · making metalTHE ENG CHIP LIGHT ILLUMINATED IN CRUISE FLIGHT. THE PILOT IMMEDIATELY DIVERTED TO A NEARBY AIRPORT & LANDED WITHOUT ANY FURTHER ISSUES. THE MECHANIC ARRIVED & INSPECTED BOTH UPPER & LOWER ACCESSORY GEARBOX CHIP DETECTORS. THEY BOTH SHOWED EXCESSIVE AMOUNTSJun 16, 2015 · N193AM · Bell 407 · Engine (Turbine/Turboprop)SDR CA150811006Engine · making metal(CAN) ENGINE CHIP LIGHT CAS ILLUMINATED. ACFT LANDED WITHOUT INCIDENT. INSPECTION OF CHIP DETECTORS FOUND LARGE AMOUNT OF DEBRIS ON UPPER AND LOWER PLUGS.Jun 15, 2015 · Bell 407 · Engine (Turbine/Turboprop)SDR 2A6D2015061011728Duplex Bearing · damagedMAIN TRANSMISSION HAD A CHIP LIGHT ILLUMINATE. MAIN TRANSMISSION WAS SENT TO THE OVERHAUL SHOP. UPON DISASSEMBLY IT WAS DISCOVERED THE DUPLEX BEARING FOR THE GEAR SHAFT ASSEMBLY WAS STALLING & IS THE SOURCE OF METAL CONTAMINATION IN THE TRANSMISSION. APPROXJun 10, 2015 · N911AL · Bell 407 · Main Rotor GearboxSDR QMLA2015060915046Solenoid · malfunctionedPILOT LEFT THE PAD TO PICK UP MEDICAL CREW. ON HIS WAY OVER, THE PEDAL STOP WARNING INDICATOR ON THE CAUTION WARNING PANEL ILLUMINATED, SO PILOT SLOWED HIS AIRSPEED BELOW 55 KNOTS & IMMEDIATELY RETURNED TO BASE. LESS THAN A MILE FROM THE BASE. RETURNING TO Jun 9, 2015 · N193AM · Bell 407 · Flight Control SystemSDR QMLA2015060715045Potentiometer · dirtyWHILE INFLIGHT, THE FADEC DEGRADE & RESTART LIGHT ILLUMINATED. THE PILOT RETURNED TO BASE WITHOUT INCIDENT. DOWNLOADED FAULT CODE & DETERMINED HMU PLA POTENTIOMETER ISSUE. CYCLED THE THROTTLE SEVERAL TIMES FROM CUT OFF THROUGH 100% TO CLEAN ANY DIRT OR GRIT Jun 7, 2015 · N223AM · Bell 407 · Fuel Controlling SystemSDR QMLA2015052915043Chip Detector · contaminatedTRANSMISSION CHIP LIGHT ILLUMINATED IN FLIGHT WHILE EN-ROUTE TO HOSPITAL. THE PILOT LOCATED A SAFE SPOT TO LAND, & LANDED WITHOUT INCIDENT. INSPECTED THE CHIP PLUGS & FOUND A SMALL METALLIC SLIVER ON THE BOTTOM CHIP PLUG. REMOVED & PERFORMED THE REQUIRED MXMay 29, 2015 · N223AM · Bell 407 · Rotor Drive Indicating SystemSDR HEER2015052900290Bearing · spalledENGINE REMOVED 5-22-15 DUE TO METAL IN OIL. NR 5 BEARING EXHIBITS A BROKEN SEPARATOR, SEVERELY SPALLING BALLS AND OUTER RACE. PART WILL BE SENT TO MFG FOR FURTHER EVALUATION.May 29, 2015 · N407PH · Bell 407 · Turbine SectionSDR HEER20150526288Bearing · spalledENGINE REMOVED 5-8-15 DUE TO SEAGULL STUCK INSIDE ENGINE INTAKE. THE NR 5 BEARING WAS REMOVED DUE TO PROBABLE SPALLING AT OUTER RACE SPLIT.May 26, 2015 · N441PH · Bell 407 · Turbine SectionSDR CA150519019Skin · unserviceable(CAN) AFTER A TRAINING FLIGHT, IT WAS NOTED THAT BOTH LT AND RT FIN ASSEMBLIES. VERTICAL FIN AT THE END OF HORIZONTAL STABILIZER ASSEMBLIES, PN 407-023-003-105 AND PN 407-023-003-107, WERE FOUND TO HAVE BEEN STRUCK BY MAIN ROTOR BLADES IN FLIGHT. THE ONLY DAMay 15, 2015 · Bell 407 · Rotorcraft Tail BoomSDR HEER20150505166Bearing · spalledENGINE REMOVED 4-24-15 DUE TO TURBINE OVERHAUL. TURBINE NR 5 BEARING SCRAPPED DUE TO PROBABLE SPALLING AT OUTER RACE SPLIT. REPLACED WITH NEW NR 5 BEARING.May 5, 2015 · N410PH · Bell 407 · Turbine SectionSDR HEER20150504156Bearing · spalledENGINE REMOVED 4-18-15 DUE TO METAL IN OIL. NR 5 BEARING EXHIBITS GROOVED AND SPALLING BALLS WITH PROBABLE OUTER RACE SPALLING AT SPLIT. INSTALLED NEW NR 5 BEARING. PART WILL BE SUBMITTED TO MFG FOR FURTHER EVALUATION.May 4, 2015 · N412PH · Bell 407 · Turbine SectionSDR CA150502001Panel · cracked(CAN) DURING AN INSPECTION, A 2.100", CRACK WAS FOUND ON THE UPPER RT SIDE TRANSMISSION DECK AREA. MORE SPECIFICALLY IT WAS BESIDE THE RT TRANSMISSION PYLON MOUNT AT LONG BS 11.50" TO 113.00" & LAT BS 11.00" TO 13.5". PART 9, E, PART CYCLES, 52761, IS TOTALMay 1, 2015 · Bell 407 · Fuselage Main, StructureSDR HEER20150430140Bearing · spalledENGINE REMOVED 4-18-15 DUE TO METAL IN OIL. COMPRESSOR NR 2 BEARING EXHIBITS SPALLING BALLS AND BROKEN RETAINING RING. INSTALLED NEW NR 2 BEARING. PART WILL BE SUBMITTED TO MFG FOR WARRANTY CREDIT.Apr 30, 2015 · N412PH · Bell 407 · Turbine Engine Compressor Section
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