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.
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
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
SDR ALGAR291144029Mount · crackedUPON DISASSEMBLY OF COMPRESSOR FOR 2000 HR INSP, FOUND CRACKING OF FWD FLANGE AT BOLT HOLES.SDR CA110211005Window · separatedRIGHT REAR EMERGENCY EXIT WINDOW BLEW OUT AND CONTACTED THE TAIL ROTOR. ON DESCENT, PILOT HEARD WHAT SOUNDED LIKE A WINDOW OPEN. AS HE LOOKED BACK OVER HIS SHOULDER, SAW THE RT REAR EMERGENCY EXIT WINDOW BLOW OUT. LANDED AND INSPECTED THE ACFT. AFTER CLSDR CA110208020Elt · malfunctionedWHEN SWITCHED TO THE ARM POSITION, ELT IS ACTIVATED. SENT TO REPAIR FACILITY.SDR CA110211009Release Cable · brokenWHILE APPROACHING HAD AN UNCOMMAND RELEASE OF THE CARGO HOOK. INVESTIGATION REVEALED THAT THE MANUAL RELEASE CABLE SHEATH HAD BROKEN ADJACENT TO THE SWAGE FITTING ON THE CARGO HOOK END. THE SHEATH BREAKING OFF NEAR THE SWAGED FITTING CHANGED THE RIGGING OF THESDR CA110211007Release Cable · brokenTHE PILOT TOOK OFF FROM STAGING WITH A LONG LINE ON CARGO HOOK WHILE IN CRUISE AN UNCOMMAND HOOK RELEASED OCCURRED. AFTER OCCURENCE THE ENGINEER INVESTIGATED THE DEFECT AND FOUND THE MANUAL RELEASE CABLE SHEATH HAD BROKEN AJACENT TO THE SWAGE FITTING ON THE CSDR ALGAR1271145515Mount · crackedFOUND CRACKING OF FWD FLANGE OF REAR SUPPORT.SDR CA110128007Bearing · delaminated(CAN) THE ENGINEER WAS TROUBLESHOOTING A VIBRATION WHEN IT WAS DISCOVERED, VISUALLY A DELAMINATION OF THE RUBBER COMPOUND OF THE SHEAR BEARING.SDR ALGA1191144766Mount · crackedCRACK OF FWD FLANGE THROUGH BOLT HOLES AND DOUBLER PLATE.SDR CA110225003Bearing · damaged(CAN) TRANSMISSION CHIP LIGHT EXPERIENCED IN FLIGHT, METAL FOUND ON TRANSMISION CHIP PLUGS. MAST ASSY REMOVED FOR INSPECTATION. MAST BEARING FOUND TO HAVE 1 UNSERVICEABLE BALL BEARING. NEW BEARING INSTALLED.SDR QMLA2011011211006Blade · crackedDURING ROUTINE AIRWORTHINESS CHECK FOUND 2 CRACKS IN THE L/E OF ONE OF THE MAIN ROTOR BLADES.SDR QMLA201101061003Indicator · malfunctionedPILOT STATED TORQUE WENT TO 110.6 FOR (1) SECOND DURING START. CLEARED FAULT FROM GAUGE IAW MM CH 76, PROPULSION INSTRUMENT GUIDE AND EMC-35A MX GUIDE. NO FADEC FAULTS NOTED. COMPLIED WITH MM 71-14, 71-7, 71-8, TABLE 95-4 AND MM 72-00-00 PARA 1.B, PAGE 622. SDR HEEA130015Bearing · spalledENGINE WAS REMOVED FOR A 2000 HR INSP AND A TURBINE O/H. NR 5 BRG EXHIBITED SPALLING ON OUTER RACE AT SPLIT. INSTALLED NEW NR 5 BEARING.SDR ALGA123010AFS1227Pinion Gear · crackedNUMEROUS CRACKS ON INNER SURFACE WHERE ROLLER SET RIDES.SDR ALGA122810587ALBleed Air Sys · smokeIN CRUISE FLIGHT, FRONT SEAT PASSENGER ALERTED PILOT AN ODOR OF SOMETHING BURNING THEN SAW SMOKE BY HIS FEET (HEATER VENT AREA). PILOT TURNED OFF HEATER AND RETURNED TO BASE. ACFT EQUIPPED WITH ENGINE BLEED AIR HEATER. SUSPECTING AN ENGINE INTERNAL SEAL FAILSDR CA101217004Bearing · failed(CAN) THE PILOT WAS FLYING AND A ENGINE CHIP LIGHT OCCURRED. HE LANDED THE AIRCRAFT. THE ENGINEER PULLED THE CHIP DETECTORS AND FOUND FERROUS METAL. CLEANED PLUGS, DRAINED OIL, CLEANED GEARBOX OIL FILTER, AND REPLACED SCAVANGE OIL FILTER. COMPLETED ANOTHER GRSDR CA101217002Bearing · failed(CAN) ACFT WAS CLIMBING UP A SLOPE AND PREPARING TO SET UP AN APPROACH FOR LANDING ON TOP OF A RIDGE WHEN THE ENGINE APPEARED TO HAVE LOST POWER OR QUIT. THE PILOT LOWERED THE COLLECTIVE AND DESCENDED TO SET UP FOR LANDING, FLARED FOR LANDING AND LANDED HARD.SDR HEEA129893Bearing · spalledENGINE REMOVED DUE TO METAL IN OIL. NR5 BRG OUTER RACE AND BALLS ARE SPALLED, SEPERATOR IS WORN AND CRACKED. INSTALLED REPLACEMENT PARTS.SDR CA101206022Servo · binding(CAN) THIS ACTUATOR WAS RECEIVED FOR REPAIR WITH COMMENTS "BINDING DURING INPUT". A FUNCTIONAL TEST WAS CARRIED OUT. DUE TO WEAR IN THE INPUT LINKAGE BUSHINGS AND BOLTS, THE SERVO VALVE TRAVEL WAS LIMITED ENOUGH TO RESTRICT THE SPEED OF THE ACTUATOR. WEAR IN TSDR 2010FA0001235Bearing · wornPILOT REPORTED M/R VIBRATION. FOUND BEARING WORN IN MAIN ROTOR HEAD.SDR HEEA129880Bearing · spalledENGINE REMOVED FOR TURBINE O/H. NR5 BRG EXHIBITED SPALLING ON OUTER RACE AND BALLS. REPLACED NR5 BRG.SDR FXGA74CHeater · crackedSHUTDOWN CABIN HEATER DUE TO POSSIBLE CO2 LEAK. REPLACED CABIN HEATER IAW AB LMM 27-55 PARA 2. OPS AND LEAK CHECK GOOD.SDR CA101026003Blade · crackedDURING 600HR/6 MONTH INSP CRACKS WERE FOUND ON THE L/E EROSION STRIP ON 2 OF THE 4 BLADES. THE CRACKS STARTED AT THE L/E AND GO TOWARD THE T/E. ALL THE CRACKS ARE ON THE TOP OF THE BLADE AND OTBD OF BLADE STA 138.0. BLADES WERE REMOVED FROM SERVICE FOR REPASDR HEEA129747Bearing · spalledENGINE REMOVED DUE TO METAL IN OIL. NR5 BEARING EXHIBITED SPALLING OF OUTER RACE, N1 COUPLING PN 23032345 IS OUT OF BALANCE, WASHER PN 6848996-3 IS WORN, CUP WASHER PN 6889319 HAD METAL FALLOUT AT SAFETY LOCATION. SCRAPPED PARTS AND REPLACED WITH NEW.SDR CA100927009Bearing · debonded(CAN) WHEN AIRCRAFT CAME IN FOR A 300 HOUR AIRFRAME INSPECTION ONE OF THE SNAGS REPORTED WAS A BLACK STREAK UNDER THE BLUE TRIANGLE BLADE GRIP. THE PILOT ALSO REPORTED THAT THE SEEMED TO BE GETTING A MORE OF A LATERAL AND VERTICAL. THIS DEFECT DREW THE MAINTSDR ALGA4417591710Flange · crackedFOUND CRACKING OF FWD FLANGE BEYOND REPAIRABLE LIMITS.SDR QMLRMD7081Seat Frame · chafedTHE 3 CREW SEAT BACK FRAMES EACH HAVE 2 CROSS TUBES EACH OF WHICH THE TUBE WALL THICKNESS HAS BEEN REDUCED BY ABRAISON AGAINST MATING ACFT STRUCTURE. EACH AREA OF ABRASION VAIRIES IN WIDTH FROM APPROX 2 TO 3 INCHES WIDE.SDR CA101019016Support · brokenCOMPRESSOR RECEIVED FOR GENERATING METAL. FOUND PORTIONS OF REAR SUPPORT BROKEN OFF AT NR 2 BEARING RETAINING RING GROOVE.SDR QMLRMD7082Support Angle · damagedRT CHIN WINDOW FRAME HAS A DEEP CREASE ON THE INBD SIDE, THE DOUBLER FOR THE EXTERNAL POWER RECEPTACLE HAS 3 EA, PUNCTURES 0.050" BELOW THE PITOT TUBE, A DEEP CREASE WHERE THE WINDOW MOUNTS, THE SUPPORT ANGLE ON THE INSIDE BELOW THE DRAIN TUBE HAS A 2.0" CRACKSDR ALGA991044688Shaft · crackedENGINE HAD HIGH OIL CONSUMPTION. DISASSEMBLED PT SECTION OF TURBINE AND DISASSEMBLED PT ROTOR. FOUND EXCESSIVE AMOUNT OF OIL BETWEEN PT INNER AND PT OUTER SHAFTS. CLEANED OFF PARTS AND INSPECTED. DISCOVERED CRACK IN INNER SHAFT BELOW INNER NUT THREADS WHICH CSDR CA100920011Bearing · failed(CAN) CUSTOMER REMOVED THE ENGINE FOR METAL IN OIL. UPON INSPECTION THE NR 2 BEARING SEPARATOR WAS FOUND CRACKED. THE BALLS OF THE BEARING ARE SPALLED. ENGINE OVERHAUL AT 1999.6 HRS. REPAIR FOR METAL IN OIL AT 2166.4 HOURS TSN, AT THIS REPAIR IT WAS NOTICESDR CA100907009Hose · leakingHOSE WAS FOUND ON DI TO TO WEEPING. CONTINUED TO GET WORSE TO THE POINT WHERE IT WAS BEYOND LIMITS AND GROUNDED THE ACFT.SDR ALGA082710697ALDrive Shaft · wornHYD SYS LIGHT ILLUMINATED IN FLIGHT. MX FOUND HYD PUMP DRIVESHAFT SPLINES AND TRANSMISSION OIL PUMP OUTPUT SHAFT SPLINES WORN AWAY. R & R HYD PUMP DRIVESHAFT AND TRANSMISSION OIL PUMP.SDR CA100818002Yoke · damagedDURING HIS WALK AROUND, THE PILOT DISCOVERED A HAIRLINE CRACK IN THE PAINT OF THE FWD EDGE OF THE TAIL ROTOR HUB (IN LINE WITH THE AXIS OF OUTPUT SHAFT OF THE TAIL ROTOR GEARBOX) AND ON THE ORANGE BLADE SIDE. AME 1 WASN`T HAPPY WITH THE WAY IT LOOKED ON PRELISDR CA100707002Blade · delaminatedPILOT REPORTED VIBRATION FELT. LANDED AND FOUND LOWER SURFACE OF BLADE SKIN DELAMINATED AND CURLED BACK FROM THE L/E. ACFT IS GROUNDED WAITING FOR A REPLACEMENT BLADE.SDR 2010F00141Blade · debondedLOWER MAIN ROTOR BLADES SKIN DELAMINATION FROM BLADE STATION 196 TO BLADE STATION 210.SDR CA100721011Bearing · making metalTHE PILOT WAS STARTING THE ENGINE AND AT IDLE GOT A WARNING OF A ENGINE CHIP LIGHT. THE ENGINE WAS SHUTDOWN AND THE ENGINEER VIEWED THE CHIP PLUGS. THERE WAS FERROUS METAL ON BOTH PLUGS MORE ON THE BOTTOM CHIP PLUG. THE TURBINE WAS REMOVED AND SENT TO A APPSDR HEEA128605Bearing · spalledENGINE REMOVED DUE TO METAL IN OIL, NR 5 BRG EXHIBITED EXCESSIVE SPALLING ON BALLS AND OUTER RACE AND WORN AND CRACKED SEPARATOR. ORDERED REPLACEMENT BEARING.SDR CA100612001Crosstube · crackedPILOT LANDED ON A LOG PAD IN A MARSHY AERA TO FACILITATE A CREW CHANGE. THE ACFT WAS SPOOLED BACK TO FLIGHT IDLE AND THE CREW MEMBERS DEPARTED AND THE OTHER CREW BORDED THE ACFT. AS PILOT WAS ROLLING THE THROTTLE BACK UP TO 100 PERCENT, THE PILOT HEARD A LOUSDR 2010FA0000525Bevel Gear · crackedMAIN ROTOR TRANSMISSION WAS MAKING VERY SMALL AMOUNTS OF METAL, BUT ENOUGH TO KEEP SETTING OFF THE CHIP DETECTOR. STRAINED OIL AND FILTER LOOKED NORMAL. TEAR DOWN INSPECTION, FOUND BEVEL GEAR COMPLETELY CRACKED THROUGH. THERE WHERE NO OVER TORQUE INDICATIONS. SDR HEEA128580Bearing Race · spalledENGINE REMOVED DUE TO METAL IN OIL. 5 BEARING EXHIBITS SPALLING OUTER RACE AND BALLS. RETURNED TO MFG FOR INVESTIGATION ON AFA714586.SDR ALGA641016868Bearing · bindingBEARING IS BINDING AND HAS AXIAL PLAY BEYOND LIMITS.SDR CA100607006Bearing · failedMAIN ROTOR CHIP LIGHT CAME ON, TRANSMISSION REMOVED AND SENT FOR REPAIR, MAST BEARING FOUND UNSERVICEABLE AND REPLACED.SDR ALGA051810A9076Bearing · bindingBEARING HAS BINDING, AXIAL PLAY, AND RATCHETING BEYOND LIMITS.SDR HEEA129892Bearing · spalledTURBINE HAS SPALLING BALLS AND OUTER RACE. REPLACED WITH NEW BEARING.SDR CA100505001Trim Tab · delaminatedAREA 3 INCHES AROUND TRIM TAB DELAMINATED, THIS TAB WAS REPLACED AT 2500 HOURS.SDR CA100429011Blade · cracked(CAN) UPON AN INSPECTION IT WAS NOTED THAT THAT A SURFACE CRACK WAS DEVELOPING NEAR THE BLADE BOLT HOLE . FURTHER INVESTIGATION REVEALED THAT THE CRACK HAD THIS RED/ORANGE PLASTIC MATERIAL COMING OUT OF IT.SDR CA100427004Hub · damaged(CAN) THREAD DAMAGED FOUND DURING ATTEMP TO REPLACE A DROOP STOP STUD. STUD IN QUESTION HAD ORIGINAL LOCKWIRE FROM FACTORY PRIOR TO REMOVAL OF STUD.SDR HEEA127901Channel · crackedCHANNEL IS CRACKED BEYOND REPAIRABLE LIMITS. REPLACED WITH NEW PART.SDR ALGA3/17/102536Bearing · overheatedBEARING PN 407-340-339-107, SN ZS25535, EXHIBITED SIGNS OF OVERHEATED CONDITION. EXPELLED GREASE WAS BLACK AND THE TEMP INDICATOR ON THE BEARING HANGER WAS BLACK.SDR ALGA3/17/102514Bearing · overheatedBEARING PN 407-340-339-107, SN ZV13231, TT 366.4 EXHIBITED SIGNS OF OVERTEMP CONDITION. EXPELLED GREASE WAS BLACK AND THE OVERHEAT TEMP INDICATOR ON THE BEARING HANGER WAS BLACK.
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