JASC 6310
Service difficulty reports · 772
Reports filed under 6310 · Engine/Transmission Coupling, newest first.
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 jasc_code = '6310' 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 jasc_code = '6310' 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 AU001012Clutch · cracked(AUS) ENGINE TO TRANSMISSION CLUTCH SHEAVE CRACKED FROM OUTER RETAINING BOLT. SEAL RETAINING PLATES ALSO CRACKED.SDR CA001108008Shaft · sheared(CAN) POWER OUTPUT SHAFT FOUND SHEARED AT THE THREADED END WHEN ENGINE WAS REMOVED FOR SCHEDULED MAINTENANCE. POSSIBLE CAUSE IS ENGINE DRIVESHAFT MISALIGNMENT - NEW SHAFT WAS INSTALLED ON ENGINE AND SHAFT ALIGNMENT CARRIED OUT ON REINSTALLATION OF ENGINE. (XSDR AU000957Belt · stretched(AUS) ENGINE TO TRANSMISSION DRIVE BELTS WERE STRETCHED AFTER THIRTEEN HOURS OF OPERATION. BELTS DID NOT COME OFF PULLEYS. (X)SDR 20001206SH003Shaft · wornDURING SEAL REPAIR, FOUND WORN SPLINES. (X)SDR CA001012012O-Ring · leaking(CAN) WE HAVE HAD 5 CASES OF UNACCEPTABLE GREASE LEAKAGE RATES FROM THE INPUT COUPLINGS.WHEN THE COUPLINGS WERE DISASSEMBLED THE O-RING P/N M83248-1-132 WAS FOUND TO BE EITHER FLAT OR DETERIORATED. ACRO (LANGLEY) TOLD ME THAT THEY DID A HARDNESS TEST ON THEIR SDR CA001205012Stud · failed(CAN) DURING INSTALLATION THERE WAS NO TORQUE OF THE FORWARD HOUSING NUTS, IT WAS NOTED THAT THE STUD WAS PULLING FROM THE HOUSING. THE UNIT WAS REMOVED AND SENT BACK TO ACRO FOR REPAIR.SDR 20001019SH024Freewheel Unit · slippedWHILE IN CRUISE FLIGHT, AIRCRAFT YAWED AND THE NOSE DROPPED. FOUND NR 1 TORQUE AT TOPPING AND NR 2 TORQUE AT ZERO. CONTROLLED RPM (ROTOR) WITH COLLECTIVE. FOLLOWED EMERGENCY CHECKLIST, RETURNED, AND LANDED. SUBSEQUENT PRELIMINARY INVESTIGATION REVEALED FRSDR 20001101SH016Coupling · brokenCOUPLING DISC HAD BROKEN INSERTS. (X)SDR 20001101SH018Freewheel Unit · failedMAIN GEARBOX FIREEWHEEL FAILURE CAUSING OVERTORQUE TO INTERMEDIATE GEARBOX. (X)SDR 20001101SH017Freewheel Unit · failedMAIN GEARBOX FREEWHEEL FAILURE. (X)SDR CA000907027Engine · failed(CAN) PRIOR TO DESCENT INTO YYC LOW OIL PRESSURE LIGHT ON FOR NR 2 ENGINE OIL PRESSURE DECREASING AND OIL QUANTITY DECREASING.ENGINE FAILURE AND SHUTDOWN FOLLOWED BY ONE ENGINE INOPERATIVE CHECKLIST CARRIED OUT. DECLARED EMERGENCY LANDING. TROUBLESHOOTING CARSDR CA000925028Spring · cracked(CAN) 600/YEARLY INSPECTION BEING CARRIED OUT ON MAIN DRIVESHAFT. UPON REMOVAL OF COUPLING CAP, FOUND SPRING BROKEN IN A DOZEN PIECES. THE PIECES DAMAGED THE INNER COUPLING RENDERING IT UNSERVICEABLE. THE CAP, SPRING AND INNER COUPLING WERE SCRAPED. (X)SDR AU000749Retainer · cracked(AUS) UPPER SHEAVE SEAL PLATE CRACKED. LIMITED INFORMATION PROVIDED. (X)SDR 20000907SH008Seal · leakingFREEWHEELING UNIT OUTPUT SEAL, BETWEEN ENGINE AND TRANSMISSION, REPLACED WITH NEW SEAL FROM BELL HELICOPTER. (X)SDR 20001019SH003Line · leakingFOUND SEEPAGE ON POST-FLGIHT INSPECTION, VERY HOT DAY. REPLACED HOSE. (X)SDR 20000808SH020Seal · leakingREPLACED ORIGINAL SEAL AT 383.1 HOURS SINCE NEW. REPLACED SECOND SEAL AFTER 106.1 HOURS. (X)SDR 20000807SH005Seal · leakingDURING DAILY INSPECTION, FORWARD SEAL LEAKING, CARBON PORTION PITTED. (X)SDR 20000718SH005Nut · overtorquedMECHANIC REPORTED THE M/R TRANSMISSION INPUT SHAFT ADAPTER RETAIING NUT SEEMED TO BE OVERTORQUED ON INSTALL OR PREVIOUS MAINTENANCE. ESTIMATED TORQUE WAS AT LEAST TWICE THE BHT M.M. SPEC FOR THAT PART. ADAPTER AND NUT MAGNAFLUXED FOR DEFECTS, NONE FOUND. SUSDR 20000808SH005Seal · leakingDURING DAILY INSPECTION, FOUND LEAKING, NO OBVIOUS DEFECTS. (X)SDR CA000606008Sprag Clutch · failed(CAN) DURING LOGGING OPERATIONS, NR 2 SPRAGUE CLUTCH FAILED TO ENGAGE ON APPROACH TO DROP ZONE. HELICOPTER WAS STABILIZED IN HOVER AND NR 2 ENGINE WAS SHUT DOWN. HELICOPTER LANDED ON BARGE WITHOUT FURTHER INCIDENT.SDR AU000416Retainer · cracked(AUS) CLUTCH SEAL PLATE CRACKED.SDR CA000530017Boot · torn(CAN)WHILE PERFORMING A POST-FLIGHT INSPECTION, THE PILOT NOTED GREASE ON THE FAN HOUSING (SCROLL ASSY). INSPECTION SHOWED A TEAR ON BOOT 269A-5473 INSTALLED ON ADAPTER 269A5411. DRIVESHAFT GREASE HAS LEAKED RADIALLY FROM BOOT. BOOT STILL CONTAINED SUFFICIESDR 20000619SH007Boot · tornTEAR ON RUBBER PART OF BOOT. NOTE: BOOT MFG DATE JULY 21, 1999. (X)SDR 20000619SH006Boot · tornTEAR ON RUBBER PART OF THE BOOT. NOTE: BOOT MFG DATE DECEMBER 11, 1998. (X)SDR 20000619SH005Boot · tornTHIS BOOT WAS REMOVED FROM STOCK AND FOUND THE RUBBER IN BAD CONDITION. HAD SEVERAL PLACES WHERE IT COULD TEAR. NOTE: BOOT MFG DATE JULY 21, 1999. (X)SDR AU000258Clutch · cracked(AUS) CLUTCH ASSEMBLY FREE WHEEL UNIT REAR FACE PLATE CRACKED.SDR AU000266Belt · faulty(AUS) DRIVE BELT SET FAULTY.SDR 20000412SH024Coupling · chippedDURING NORMAL 600-HOUR/12-MONTH INSPECTION AND REPACK OF MAIN ROTOR DRIVESHAFT, DISCOVERED A GEAR TOOTH (ON THE END) OF THE OUTER COUPLING WAS CHIPPED. SUBMITTER SIFTED THROUGH THE GREASE, BUT COULD NOT FIND ANY EVIDENCE OF THIRD CHIP. PART WAS RED-TAGGED ASDR AU000128Belt · faulty(AUS) ENGINE TO TRANSMISSION DRIVE BELTS FAILED. LIMITED INFORMATION PROVIDED.SDR LS1R066432Clutch · wornCLUTCH IS WORN EXCESSIVELY.SDR HEEA065900Carbon Seal · leakingCARBON SEAL LEAKING.SDR HEEA065864Coupling · crackedCOUPLING-BUSHES CRACKED.SDR 20000407SH008Bolt · backed outPOST-FLIGHT DAILY INSPECTION REVEALED ENGINE FREEWHEEL AT FLANGE ATTACH BOLT UNSCREWED FROM THE TORQUED AND SAFTIED POSITION. DAMAGED PIECES INCLUDE FREEWHEEL SHAFT, T/R SHORT SHAFT ASSY, AND FLANGES, AFT FREEWHEEL BEARING, AFT MAG SEAL, T/R LONGSHAFT SPLINESSDR 20001101SH019Freewheel Unit · failedMAIN GEARBOX FREEWHEEL FAILURE CAUSING OVERTORQUE TO TAILROTOR GEARBOX. (X)SDR 2000ZZZX377Seal · leakingSEAL LEAKING IN TRANSMISSION.SDR AU000977Drive Shaft · failed(AUS) ENGINE TO TRANSMISSION DRIVE SHAFT FAILED AND SEPARATED AT THE TRANSMISSION END. SUSPECT ATTACHMENT NUTS PN MS21043-4 HAD NOT BEEN CORRECTLY RETORQUED (LEFT FINGER TIGHT) FOLLOWING SERVICING AND GREASING OF THE SHAFT APPROXIMATELY ONE HOUR PREVIOUSLY. TSDR ERAA065662Shaft · damagedSPECIAL COATING ON FREEWHEEL SHAFT HAS A GROOVE WHERE SEAL RIDES.SDR ERAA065661Shaft · wornNEW FREEWHEEL SHAFT WITH 27.9 HOURS THAT HAS SPECIAL COATING WORN.SDR ERAA065660Shaft · wornSPECIAL COATING WORN OFF AND SHAFT ONLY HAS 32.6 HOURS TT.SDR ERAA065654Shaft · leakingFREEWHEEL SHAFT'S SPECIAL COATING WORN, CAUSING SEAL TO LEAK.SDR 20000406SH030Clutch · frozenCLUTCH LOCKED UP AND SEVERED NR 2 ENGINE DRIVESHAFT. REMOVED AND REPLACED. (X)SDR ERAA065652Shaft · wornFREEWHEEL SHAFT'S SPECIAL COATING WORN OFF, WHERE SEAL RIDES.SDR HEED065750Coupling · corrodedNR 2 ENGINE MAIN DRIVE SHAFT FORWARD COUPLING HAS SURFACE CORROSION PITTING BETWEEN DISC SEGMENTS. REPLACED UNIT.SDR HEED065708Filter · damagedTRANSMISSION OIL FILTER ELEMENT, O-RINGS P/N M832481-024.SDR ERAA065648Shaft · leakingFREEWHEEL SHAFT'S SPECIAL COATING WORN OFF CAUSING SEAL TO LEAK.SDR ERAA065647Shaft · leakingFREEWHEEL SHAFT'S SPECIAL COATING WORN CAUSING SEAL TO LEAK.SDR ERAA065646Shaft · leakingFREEWHEEL SHAFT HAS 542.5 HOURS AND INPUT SEAL IS LEAKING, SPECIAL COATING IS WORN OFF.SDR ERAA065424Seal · leakingINPUT SEAL LEAKING.SDR CA991229030Bearing · noisy(CAN) DURING ROUTINE INSPECTION, THE AME ROTATED THE MAIN INPUT SHAFT TO ENSURE PROPER FUNCTION ON FREEWHEEL UNIT AND HEARD UNUSUAL NOISES. FREEWHEEL UNIT WAS REMOVED AND THE INNER RACE OF THE BEARING WAS FOUND DAMAGED. NO OIL LEAK, DISCOLORATION OR METAL WAS SDR CA991229031Sprag Clutch · broken(CAN) DURING 300 HOUR INSPECTION OF THE O/R CLUTCH ASSY, THE SPRAG ASSY (S/N 5433) WAS FOUND TO HAVE A PIECE OF ONE OF THE SPAGS BROKEN OFF. THE PIECE WAS APPRX 1/4 X 1/4 INCH AND CAME FROM THE INSIDE DIAMETER OF THE SPRAG CLUTCH.
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