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 QMLA2014111414132Chip Detector · contaminatedUPON DEPARTING, THE TRANSMISSION CHIP LIGHT ILLUMINATED. PILOT LANDED & CALLED MAINTENANCE TECHNICIAN. A VERY SMALL SLIVER WAS FOUND ON THE TRANSMISSION TOP PLUG. THE LOWER PLUG WAS CLEAN & THE FREEWHEELING UNIT PLUG WAS CLEAN. CLEANED THE TOP CHIP PLUG & Nov 14, 2014 · N223AM · Bell 407 · Rotor Drive Indicating SystemSDR HEER20141113432Bearing · making metalENGINE REMOVED 11-8-14 DUE TO IMPELLER RETIREMENT. TURBINE NR 5 BEARING REPLACEMENT DUE TO ISSUES WITH CAUSING METAL IN OIL. PART WILL BE RETURNED TO MFG FOR FURTHER EVALUATION.Nov 13, 2014 · N432PH · Bell 407 · Turbine SectionSDR HEER20141112417Bearing · spalledENGINE REMOVED 11-8-14 DUE TO METAL IN OIL. TURBINE NR 5 BEARING BALLS AND SEPERATOR SPALLING. INSTALLED NEW NR 5 BEARING. PART WILL BE SUBMITTED TO MFG FOR FURTHER EVALUATION.Nov 12, 2014 · N447PH · Bell 407 · Turbine SectionSDR HEER20141111416Bearing · spalledENGINE REMOVED 11-6-14 DUE TO METAL IN OIL. SPALLED OUTER RACE, SEVERAL BALLS AND WORN SEPERATOR POCKET.Nov 11, 2014 · N440PH · Bell 407 · Turbine SectionSDR HEER20141111429Bearing · spalledNR 5 BEARING SPALLED AT OUTER RACE SPLIT LINE. INSTALLED NEW NR 5 BEARING.Nov 11, 2014 · N411PH · Bell 407 · Turbine SectionSDR YTRA2014111832201Compressor · stalledON DEPARTURE THE ENG EXPERIENCED A COMPRESSOR STALL WITH SIGNIFICANT YAW.Nov 11, 2014 · N373RL · Bell 407 · Turbine Engine Compressor SectionSDR HEER20141105347Bearing · spalledENGINE REMOVED DUE TO METAL IN OIL. REMOVED TURBINE NR 5 BEARING DUE TO SPALLING AT OUTER RACE SPLIT AND BEARING BALLS, CAUSE OF METAL IN OIL. REPLACED NR 5 BEARING WITH NEW BEARING. WILL RETURN PART TO MFG FOR FURTHER EVALUATION.Nov 5, 2014 · N417PH · Bell 407 · Turbine SectionSDR YTRA2014110430801Throttle Cable · brokenTHROTTLE CABLE WAS BROKEN INTERNALLY.Nov 4, 2014 · N594RL · Bell 407 · Power LeverSDR HEER20141029324Bearing · unknownTURBINE REMOVED FOR OVERHAUL 10-16-14. REMOVED NR 5 BEARING DUE TO PROBABLE SPALLING ON OUTER RACE AT SPLIT. PART WILL BE RETURNED TO MFG FOR FURTHER EVALUATION.Oct 29, 2014 · N430PH · Bell 407 · Turbine SectionSDR HEER20141029325Bearing · spalledENGINE WAS REMOVED 10-24-14 DUE TO METAL IN OIL. NR 5 BEARING EXHIBITED HEAVY SPALLING ON BALLS. PART WILL BE RETURNED TO MFG FOR FURTHER EVALUATION.Oct 29, 2014 · N404PH · Bell 407 · Turbine SectionSDR K2D2014F00000Channel · crackedDURING ROUTINE SCHEDULED MX, A CRACK WAS FOUND IN THE FUSELAGE AFT UPPER LT CHANNEL PN 206-031-314-145. THE CRACK IS LOCATED WHERE THE CHANNEL & THE AFT UPPER LT LONGERON ARE RIVETED TOGETHER. THE CRACK SPANS THE ENTIRE WIDTH OF THE CHANNEL. PROBABLE CAUSE Oct 26, 2014 · N407WH · Bell 407 · Fuselage Miscellaneous StructureSDR K2DA407WH01Channel · crackedDURING ROUTINE SCHEDULED MAINTENANCE, A CRACK WAS FOUND IN THE FUSELAGE AFT UPPER LT CHANNEL. THE CRACK IS LOCATED WHERE THE CHANNEL AND THE AFT UPPER LT LONGERON ARE RIVETED TOGETHER. THE CRACK SPANS THE ENTIRE WIDTH OF THE CHANNEL.Oct 25, 2014 · N407W · Bell 407 · Fuselage Miscellaneous StructureSDR HEER20141020172Bearing · spalledENGINE REMOVED ON 10-9-14 DUE TO METAL IN OIL. NR 5 BEARING EXHIBITS HEAVY SPALLING ON NR 5 BEARING BALLS. PART RETURNED TO MFG FOR FURTHER EVALUATION.Oct 20, 2014 · N496PH · Bell 407 · Turbine SectionSDR HEER20141020173Bearing · spalledENGINE REMOVED ON 10-13-14 FOR TURBINE OVERHAUL. NR 5 BEARING EXHIBITS A SPALLING BALL. REPLACED BEARING. PART WILL BE RETURNED TO MFG FOR EVALUATION.Oct 20, 2014 · N491PH · Bell 407 · Turbine SectionSDR HEER20141020174Bearing · spalledENGINE REMOVED 10-14-14 DUE TO METAL IN OIL. NR 5 BEARING REMOVED DUE TO POSSIBLE SPALLING AT OUTER RACE SPLIT. REPLACED WITH NEW PART AND RETURNED TO MFG FOR FURTHER EVALUATION.Oct 20, 2014 · N501PH · Bell 407 · Turbine SectionSDR CA141024024Warning Light · illuminated(CAN) DURING FLIGHT, ENGINE CHIP LIGHT ILLUMINATED. PILOT THEN LANDED THE ACFT. PILOT REMOVED ENGINE CHIP DETECTORS AND CALLED MAINTENANCE PROVIDER.Oct 13, 2014 · Bell 407 · Engine (Turbine/Turboprop)SDR ALGA201410138459Bearing · deterioratedENGINE CHIP LIGHT. UPON TEARDOWN OF ENG IT WAS DETERMINED THAT THE NR 5 BEARING WAS BEGINNING TO FAIL.Oct 10, 2014 · N404AL · Bell 407 · Engine (Turbine/Turboprop)SDR ALGA201410098303Bearing · damagedENGINE CHIP LIGHT. UPON TEARDOWN NR 5 BEARING WAS FOUND TO BE DAMAGED.Oct 9, 2014 · N409AL · Bell 407 · Engine (Turbine/Turboprop)SDR ALGA100820148431Spring · brokenBROKEN SPRING & INTERNAL DAMAGE.Oct 6, 2014 · N408AL · Bell 407 · Main Rotor SystemSDR ALGA201410098452Bearing · spalledENGINE CHIP LIGHT. UPON TEARDOWN FOUND NR 5 BEARING TO HAVE HEAVY SPALLING ON BALLS.Oct 6, 2014 · N447AL · Bell 407 · Engine (Turbine/Turboprop)SDR CA141007003Fuel Control · malfunctioned(CAN) ACFT CURRENTLY LOCATED ON OFFSHORE PLATFORM WITH A RESTART FAULT AND DEGRADE. THE PILOT REPORTED THAT THE FAULTS ON THE G1000 WERE PRIMARY AND SECONDARY MGT DEGRADE.Oct 3, 2014 · Bell 407 · Fuel Control/Turbine EnginesSDR CA140930008Skid · broken(CAN) SKID ASSEMBLY, STINGER, NOTED AS LOOSE ON ACFT DAILY INSPECTION. FURTHER INSPECTION FOUND IT BROKEN AT SINGLE ATTACHMENT POINT. EVIDENCE OF FRETTING AND CORROSION. THIS IS THE 2ND RECENT FAILURE OF THIS PART ON THIS ACFT TYPE. RESTRICTED TO THIS MFG Sep 29, 2014 · Bell 407 · Rotorcraft Tail BoomSDR QMLA2014092814118Power Supply · shortedLAUNCHING ON A SCENE FLIGHT, ON STARTUP THE LANDING LIGHT CB POPPED & WAS RESET ONCE. THE STARTUP WAS COMPLETED. AFTER TAKEOFF THE NURSE SMELLED A BURNT WIRE SMELL & THEN THE REST OF THE CREW CONFIRMED THE SMELL. THE PILOT IMMEDIATELY RETURNED TO BASE APPROSep 28, 2014 · N408LN · Bell 407 · Passenger Compartment LightingSDR CA141006015Drain · leaking(CAN) FIRST CHECK FLIGHT AFTER REASSEMBLY, WITH THE FUEL TANK FULL, A STRONG SMELL OF FUEL WAS NOTED IN CABIN DURING FLIGHT, FUEL WAS FOUND LEAKING FROM DRAIN HOLE UNDER TANKS, ON ACFT BELLY.Sep 28, 2014 · Bell 407 · Fuel StorageSDR QMLA2014092714115Chip Detector · contaminatedEN ROUTE TO A PR EVENT, TAIL ROTOR CHIP LIGHT ILLUMINATE CAUSING AN UNSCHEDULED LANDING. REMOVED & EXAMINED THE MAGNETIC CHIP PLUG & FOUND A SMALL HAIR LIKE METAL SLIVER. THIS PARTICLE WAS REMOVED, CHIP DETECTOR CLEANED & THE PLUG REINSTALLED. GND RAN ACFT Sep 27, 2014 · N193AM · Bell 407 · Tail Rotor Drive Indicating SystemSDR CA140925002Bolt · cracked(CAN) WHEN INSTALLING THE MAIN ROTOR BLADES, FOUND VISUAL INDICATION OF A CRACKED MAIN ROTOR BLADE BOLT. COMPLETED A LIQUID PENETRATE INSPECTION ON ALL 8 BOLTS AND FOUND 2 BOLTS SUSPECTED OF BEING CRACKED. BOLTS WERE SENT TO FOR MAGNETIC PARTICLE INSPECTION,Sep 22, 2014 · Bell 407 · Main Rotor HeadSDR CA140916002Gearbox · making metal(CAN) ENGINE MAKING METAL WHILE AIRCRAFT RUNNING ON GROUND. METAL FOUND ON BOTH THE UPPER AND LOWER MAGNETIC CHIP PLUG LOCATED ON ENGINE GEARBOX.Sep 15, 2014 · Bell 407 · Accessory GearboxesSDR QMLA2014091114111Blade · crackedPAINT FOUND CRACKED BY MECHANIC WHILE PERFORMING A PREFLIGHT AIRWORTHINESS CHECK OF THE TAIL ROTOR BLADE PN 406-016-100-119, SN BH93897. UPON FURTHER INVESTIGATION BY REMOVING PAINT, IT WAS NOTED THAT CRACKS WERE EMANATING FROM THE BLADE & BLOCK BETWEEN THE TSep 11, 2014 · N905HA · Bell 407 · Tail Rotor BladesSDR CA141031002Warning Light · illuminated(CAN) ENGINE CHIP LIGHT ILLUMINATED DURING FLIGHT. OIL CHANGED, CLEANED DETECTORS, CHANGED OIL FILTER, NOTHING FOUND IN FILTER, AFTER GROUND RUN 30 MIN DETECTORS CHECKED AND FOUND CLEAN. AFTER 1 HR OF FLIGHT THE CHIP DETECTOR SIGNALED CHIPS AGAIN. ENGINE BEISep 1, 2014 · Bell 407 · Engine Indicating SystemSDR CA141031001Warning Light · illuminated(CAN) CHIP LIGHT ILLUMINATED AND BOTH CHIP DETECTORS HAD MORE THAN PERMISSIBLE AMOUNT AND DIMENSIONS OF CHIPS. ENGINE SENT, INFORMATION RECEIVED SAYS TORQUEMETER BEARING FAILURE.Aug 25, 2014 · Bell 407 · Engine BMEP/Torque IndicatingSDR QMLA2014082314102Ecu · faultedON APPROACH, ACFT EXPERIENCED FADEC DEGRADE & FAULT INDICATIONS. ACFT LANDED SAFELY. DOWNLOAD OF ECU REVEALED SEVERAL CODES COVERING VARIOUS SYS. IT WAS DETERMINED THAT THE OSCILLATOR IN THE ECU HAD FAILED & A REPLACEMENT WOULD BE REQUIRED. THIS ACFT REMAIAug 23, 2014 · N459AM · Bell 407 · Fuel Controlling SystemSDR QMLA2014073114096Gearbox · making metalDURING MAINTENANCE FLIGHT HAD T/R CHIP LIGHT ILLUMINATE CAUSING A UNSCHEDULED LANDING. REMOVED & EXAMINED MAGNETIC CHIP PLUG. SMALL HAIR LIKE METAL SLIVER FOUND. CLEANED & RE-INSTALLED PLUG & STILL HAD CAUTION LIGHT. CHECKED WIRING & FOUND TO BE SERVICEABLJul 31, 2014 · N193AM · Bell 407 · Tail Rotor GearboxSDR QMLA2014073014095Warning System · false activationDURING FLIGHT TORQUE MISCOMP LIGHT ILLUMINATED, REDUCED POWER & LIGHT WENT OUT. ACFT RETURN TO BASE & LIGHT CAME ON AGAIN DURING HOVER FOR LANDING. ACFT LANDED & LIGHT REMAINED ON ALONG WITH AN ALTN DATA FAIL LIGHT. TECH REP RECOMMENDED CHECKING THE PLUGS AJul 30, 2014 · N434AM · Bell 407 · Central WarningSDR QMLA2014072814094Engine · making metalAFTER LANDING & HOT OFF LOAD PILOT WAS REPOSITIONING ACFT ON HELIPAD. DURING HOVER ENG CHIP LIGHT ILLUMINATED. ON CALL MECHANIC RESPONDED & FOUND METAL DEBRIS & SHAVINGS OUT OF LIMITS IAW 250-C47B MM.Jul 28, 2014 · N152AM · Bell 407 · Engine (Turbine/Turboprop)SDR QMLA2014071614085Warning System · false activationDURING NORMAL SHUTDOWN A FADEC DEGRADE LIGHT AS THE THROTTLE WAS PLACED TO OFF. THE MECHANIC ARRIVED & VERIFIED OVERSPEED TEST 4 & 5 FAIL & AN OVERSPEED FAIL. VERIFIED ALL CONNECTORS TO BE CLEAN & SECURE IAW RR 250 C47B MM CHPT 73-25-01 FAULT ISOLATION MANUAJul 16, 2014 · N223AM · Bell 407 · Engine Fuel Indicating SystemSDR QMLA2014071514084Connector · saturatedTHE MGMT. MISCOMP AMBER CAUTION LIGHT ILLUMINATING ON START UP. THE PILOT IMMEDIATELY ABORTED THE START & CALLED THE MECHANIC. THE RECOMMENDATION WAS TO DISCONNECT THE FADEC & ENG WIRE HARNESSES ON FWD FIREWALL & ENG PAN AREA ON RT SIDE & CHECK FOR MOISTURE.Jul 15, 2014 · N459AM · Bell 407 · Engine Fuel System WiringSDR CA140715009Solenoid · inoperative(CAN) WATER ENTRAPMENT CAUSED THE PEDAL STOP SOLENOID TO BECOME INOPERATIVE. WHEN THE LOWER WSPS PANEL WAS OPEN, WATER WAS TRAPPED IN THE AREA JUST BELOW THE PEDAL STOP SOLENOID DUE TO THE DRAIN HOLE BEING PAINTED OVER & OBSTRUCTED BY PAINT.Jul 15, 2014 · Bell 407 · Tail Rotor Control SystemSDR QMLA2014070514081Adapter · malfunctionedFADEC FAULT, FADEC DEGRADE & RESTART FAULT ILLUMINATED. FADEC DOWNLOAD REVEALED THE FOLLOWING FAULTS OPENMVFLG, OSTST4FLT, OSTST7FLT & OSFLT. ALL FAULTS PERTAINED TO THE OVER SPEED ADAPTER & OVER SPEED TEST SWITCH. ABORTED THE MISSION & LANDED AT THE CLOSESJul 5, 2014 · N459AM · Bell 407 · Central WarningSDR CA140709008Skid · broken(CAN) ON FINAL APPROACH TO LANDING THE TAIL SKID, STINGER, WAS OBSERVED FROM THE GROUND AS HANGING AT AN UNUSUAL ANGLE. AFTER A NORMAL LANDING THE AME FOUND THE STINGER STEEL TUBE FRACTURED WITH 25 PERCENT CLEAN METAL AND 75 PERCENT RUST. SUSPECT THE FRACTUREJul 3, 2014 · Bell 407 · Auxiliary Gear (Tail Skid)SDR CA140714004Journal · spalled(CAN) AFTER REMOVAL OF MAST ASSY, TECH DISCOVERED SPALLING AT THE LOWER MAST JOURNAL AREA. MAST WILL BE SENT TO MFG FOR FURTHER INVESTIGATION.Jul 1, 2014 · Bell 407 · Main Rotor Mast/SwashplateSDR CA140625005Transmission · making metal(CAN) TRANSMISSION FOUND MAKING METAL ON CHIP PLUG AFTER 219.5 HRS SINCE LAST OVERHAUL.Jun 24, 2014 · Bell 407 · Main Rotor GearboxSDR CA140627015Combust Chamber · cracked(CAN) AME NOTICED CRACK IN RT ARMPIT AREA OF OUTER COMBUSTION LINER DURING DAILY INSPECTION, PRIOR TO NEXT DAY`S FLYING. CRACK IS 2.0" LONG, RUNNING HORIZONTALLY INTO WIRE MESH PATCH AREA. CONFIRMED ON ENGINE RUN UP, BLOWING AIR. ENGINE PERFORMANCE CHECKS HJun 24, 2014 · Bell 407 · Turbine Engine Combustion SectionSDR QMLA2014061214071Warning Light · illuminatedDURING A CREW NVG CURRENCY & TRAINING FLIGHT, THE PILOT RECEIVED AN ENG CHIP LIGHT ILLUMINATION WHILE IN CRUISE ATTITUDE. HE LANDED WITHOUT INCIDENT. THIS ACFT IS CURRENTLY OUT OF SERVICE AWAITING AN ENG TO ARRIVE AT THE TIME OF THIS SUBMISSION.Jun 12, 2014 · N247SM · Bell 407 · Central WarningSDR CA140617007Knob · loose(CAN) DURING THE INSPECTION OF NEW DELIVERY 407GX A KNOB AND SEVERAL WASHERS ARE FOUND IN THE RIGHT CHIN BUBBLE AREA.Jun 10, 2014 · Bell 407 · Indicating/Recording SystemSDR QMLA2014060814068Warning Light · illuminatedDURING CRUISE FLIGHT THE MGT MISCOMP LIGHT ILLUMINATED. ALERTED THE CREW & ADVISED THEM THAT THEY WOULD BE ABORTING THE FLIGHT & RETURNED TO BASE. THE RFM EMER PROCEDURE STATES TO AVOID HIGH POWER SETTINGS IF POSSIBLE & LAND AS SOON AS PRACTICAL. ONCE ON THJun 8, 2014 · N434AM · Bell 407 · Central WarningSDR QMLA2014060314070Unknown · failedPATIENT ON BOARD, COMM 1 & COMM 2 FAIL SIMULTANEOUSLY. PILOT COMMUNICATES WITH TOWER VIA HOSPITAL FREQ ON TDFM & RECEIVES TRANSPONDER SQUAWK & APPROACH INSTRUCTIONS. AFTER SHUTDOWN, POWER IS REAPPLIED. COMM 1 REMAINS INOPERATIVE, COMM 2 IS OPERATIONAL. DEFJun 3, 2014 · N408LN · Bell 407 · Communications SystemSDR QMLA2014060214061Warning System · false activationTHE PILOT REPORTED THAT DURING CRUISE FLIGHT THE MGT MISCOMP LIGHT ILLUMINATED. ABORTED THE FLIGHT & RETURNED TO BASE. FOUND NO FAULTS WITH THE PREVIOUS REPAIR THAT WAS REPORTED UNDER SDR QMLA2014053014060 FOR THIS SAME TYPE OF EVENT. AFTER A THOROUGH INSPEJun 2, 2014 · N434AM · Bell 407 · Central WarningSDR QMLA2014053014060Terminal Block · looseDURING CRUISE FLIGHT, THE PILOT REPORTED A MGT MISCOMP CAUTION LIGHT ILLUMINATE. ABORTED THE REMAINDER OF THE FLIGHT & RETURNED TO BASE. FOUND A TERMINAL BLOCK LOOSE BEHIND THE INSTRUMENT PANEL. THIS BLOCK & TERMINAL ENDS WERE SECURED & THE ACFT WAS RETURNEMay 30, 2014 · N434AM · Bell 407 · Engine ControlsSDR M3XA201405251405Chip Detector · contaminatedTRANSMISSION CHIP LIGHT, SAFE LANDING & VERY MINOR FUZZ. CLEAN PLUGS, 20 MIN PENALTY UNDER TORQUE, NO CHIP LIGHT, BIS.May 25, 2014 · N512MT · Bell 407 · Rotor Drive Indicating SystemSDR CA140526006Ecu · malfunctioned(CAN) FLIGHT CREW WAS PREFORMING TRAINING, ON THE GROUND AT 100 PERCENT NR THE FLIGHT CREW ACTIONED AN EXCESSIVE ELECTRICAL LOAD EMERGENCY PROCEDURE IAW FMS 3-7-B. THE TRAINING PILOT IN THE RT SEAT SELECTED GENERATOR SWITCH TO THE OFF POSITION AND THEN SELECTEMay 23, 2014 · Bell 407 · Fuel Controlling System
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