JASC 6520
Service difficulty reports · 865
Reports filed under 6520 · Tail Rotor Gearbox, 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 = '6520' 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 = '6520' 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 ERAA081155Gearbox · misrepairedHOUSING RECEIVED WITHOUT THREAD SEALANT. CHECKED GEARBOX OUT ON HOLD BOARD, C/W PRELIMINARY INSPECTION. NO DEFECTS NOTED, DRILLED OUT LOCKS ON 2 STUDS, APPLIED LOCKTITE AND REINSTALLED ORIGINAL STUDS WITH NEW LOCKS. ATTACHED ORIGINAL YELLOW TAG TO GEARBOX RESDR AUS20021182Gearbox · making metal(AUS) TAIL ROTOR GEARBOX METAL CONTAMINATION.SDR KBMA116014Bearing · crackedBEARINGS ARE SPLIT AND CRACKED. REPLACED WITH NEW BEARING.SDR VY1R103157Bearing · failedBEARING, UNITS FAILED WITH 373.9 TT, REPLACED.SDR CA021029003Case · damaged(CAN) DURING A 600 HOUR INSPECTION OF AIRCRAFT, DAMAGE WAS FOUND ON THE UNDER SIDE OF THE T/R GEARBOX CASE. DUE TO A MIS-ALIGNMENT OF THE T/R PUSH PULL TUBE ADAPTER. DAMAGE WAS APPROX .020 DEEP & UPON INVESTIGATION IT WAS DETERMINED THAT PIN HAD EXCESSIVE WEARSDR CA021002010Gearbox · damaged(CAN) DURING A SCHEDULED 600 HOUR INSPECTION. DAMAGE WAS FOUND ON THE UNDER SIDE OF TAIL ROTOR GEARBOX CASE DUE TO A MIS-ALIGNMENT OF THE T/R PUSH PULL TUBE ADAPTER. DAMAGE WAS APPROXIMATELY .020 DEEP AND UPON INVESTIGATION IT WAS DETERMINED THAT PIN HAD EXCSDR YT2R110924Gearbox · making metalGEARBOX MAKING METAL.SDR YT22002F00000Gearbox · making metalGEARBOX MAKING METAL.SDR CA020801012Bevel Gear · failed(CAN) TAILROTOR GEARBOX BEVEL GEAR - LOSS OF TORQUE ATTACHING IT TO THE OUTPUT DRIVE SHAFT - ALL THE BOLTS WERE LOOSE CAUSING EXTREME BACKLASH IN GEAR SET. FOUND DURING GEARBOX REMOVAL/INSTALLATION. THE INPUT PINION, OUTPUT BEVEL GEAR, OUTPUT SHAFT ALL SCRAPESDR CA020828009Bearing · cracked(CAN) M/R TRANSMISSION CHIP LIGHT WAS REPORTED. CHIP PLUGS INSPECTED AND FOUND TO HAVE LARGE AMOUNT OF DEBRIS. SOURCE FOUND TO BE THE T/R O/P PINION ROLLER BEARING. THE INNER RACE WAS FOUND TO BE CRACKED AND HEAVY SPALLING WAS ALSO OCCURRING. THIS INNER RACE ISDR KBMA117650Bearing · wornBEARINGS ARE WORN. REMOVED AND REPLACED WITH NEW BEARINGS.SDR HEEA080229Spline Adapter · wornTAIL ROTOR SPLINE ADAPTER HAS WORN SPLINES.SDR HEEA080228Spline Adapter · wornTAIL ROTOR SPLINE ADAPTER HAS WORN SPLINES.SDR HEEA080320Bearing · wornSEVERE VIBRATION DURING FLIGHT. WORN FEATHERING BEARINGS. REPLACED PARTS AND REPAIRED.SDR HEEA080172Trunnion · wornTAIL ROTOR GEARBOX TRUNNION WORN.SDR HEEA080318Spline Adapter · wornWORN PITCH SHAFT SPLINES AND CORROSION ON CASE. REPAIRED.SDR CA020828007Bearing · cracked(CAN) M/R CHIP LIGHT WAS REPORTED. CHIP PLUGS INSPECTED AND FOUND TO HAVE LARGE AMOUNT OF DEBRIS. SOURCE FOUND TO BE THE T/R O/P PINION ROLLER BEARING. THE INNER RACE WAS FOUND TO BE CRACKED AND HEAVY SPALLING WAS ALSO OCCURRING. THIS INNER RACE IS PRESSED ONTSDR HEEA080303Bushing · wornTAIL ROTOR GEARBOX HAS A WORN BUSHING. REPAIRED.SDR CA020610008Case · damaged(CAN) DURING AN OVERHAUL ON MODEL 407 GEARBOX ASSEMBLY, WHICH AS THE SAME DETAIL CASE ASSEMBLY PART NUMBER AS THE MODEL 427,IT WAS FOUND THAT AN OIL PASSAGE WAS MISSING IN THE GEARBOX HOUSING BEARING BORE OF THE INPUT SHAFT DUPLEX BEARING. AFTER INVESTIGATION,SDR KBMA117627Bushing · wornSPLIT BUSHING WORN ON TAIL ROTOR SPIDER. REPLACED WITH SERVICEABLE SPIDER ASSEMBLY.SDR HEEA079551Gearbox · vibrationTAIL ROTOR GEARBOX HUM DETECTED. ABNORMALITY ON OUTPUT GEAR. REPLACED WITH SERVICEABLE PART.SDR HEEA079550Seal · leakingTAIL ROTOR GEARBOX HAS A LEAKING INPUT SEAL. REPLACED WITH SERVICEABLE PART.SDR HEEA079549Gearbox · leakingGEARBOX LEAKING. REPLACED WITH SERVICEABLE PART.SDR HEEA079548Gearbox · leakingLEAK OUTPUT SHAFT SEAL. REPLACED SEAL AND RETURNED TO SERVICE.SDR HEEA079547Seal · leakingTAIL ROTOR GEARBOX HAS A LEAKING INPUT SEAL. REPLACED SEAL AND RETURNED TO SERVICE.SDR HEEA079396Housing · leakingTAIL ROTOR SEAL HOUSING ON GEARBOX LEAKS. REPLACED WITH SERVICEABLE PART.SDR HEEA079163Seal · leakingTAIL ROTOR GEARBOX INPUT SEAL HAS AN OIL LEAK.SDR HEEA079161Seal · leakingTAIL ROTOR GEARBOX INPUT SEAL LEAKING.SDR HEEA078902Shaft · peelingPAINT PEELING FROM SHAFT.SDR HEEA078900Spline Adapter · wornSPLINE ADAPTER HAS WORN SPLINES.SDR HEEA078832Case · corrodedTAIL ROTOR GEARBOX HAS EXCESSIVE PITTING BETWEEN CHIP DETECTOR AND RIGHT FORWARD MOUNTING STUD.SDR CA020828008Bearing · cracked(CAN) DURING A SEAL CHANGE A CRACK WAS DETECTED ON THE INNER RACE OF THE T/R O/P PINION ROLLER BEARING. THIS INNER RACE IS PRESSED ONTO THE PINION WITH AN INTERFERENCE FIT.SDR YTRR078432Trunnion · wornTRUNNION WAS FOUND WORN BEYOND LIMITS DURING A 100 HR A/F INSPECTION.SDR HEEA078630Bearing · crackedTAIL ROTOR BEARING HAS RUBBER CRACKED AND DETERIORATED ON BEARING. SCRAPPED PER AEC.SDR HEEA078314Gearbox · corrodedTAIL ROTOR GEARBOX SPLINES PITTED ON OUTPUT SHAFT.SDR HEEA078313Gearbox · corrodedTAIL ROTOR GEARBOX OUTPUT SHAFT SPLINES CORRODED.SDR HEEA078206Seal · leakingTAIL ROTOR GEARBOX IS LEAKING.SDR ALG2002F00033Shaft · wornDURING REPAIR FOR LEAKING OUTPUT SEAL, FOUND SPLINES ON OUTPUT SHAFT WORN BELOW LIMITS, READING 1.3025, MIN 1.3035 (SHAFT SPLINES SOFTER METAL THAN TRUNNION SPLINES.)SDR CA030610003Tube · cracked(CAN) THE TUBE ASSEMBLY WAS REMOVED DURING A NORMAL INSPECTION AND FOUND TO HAVE EXCESSIVE WEAR ON THE SEAL JOURNAL. THE TUBE WAS SENT TO A REPAIR STATION TO HAVE THE JOURNAL REPLATED IAW TB 205-91-89. THE TUBE WAS INSPECTED BY MAGNETIC PARTICAL INSPECTION SDR HEEA078110Gearbox · wornTAIL ROTOR GEARBOX HAS WORN SPLINES.SDR HEEA078099Spline Adapter · wornTAIL ROTOR SPLINE ADAPTER SHAFT ASSY WORN. SCRAPPED IN HOUSE.SDR HEEA077879Seal · leakingTRANSMISSION SUPPORT SEAL LEAKING.SDR HEEA077869Shaft · corrodedEXCESSIVE CORROSION ON OUTPUT SHAFT DRIVE SPLINES.SDR HEEA077866Seal · leakingTAIL ROTOR INPUT SEAL LEAKING.SDR HEED089083Gearbox · vibrationUNEXPLAINED TAIL ROTOR VIBRATION AND GRITTY SUBSTANCE IN GEARBOX. REPLACE UNIT.SDR 2002FA0000350Pinion Gear · roughTEETH ON RING AND PINION DO NOT HAVE A POLISHED FINISH ON FACE OF TEETH. SURFACE IS NOT SMOOTH.SDR 2002FA0000349Gear · roughTEETH ON RING AND PINION DO NOT HAVE A POLISHED SURFACE ON FACE OF TEETH. SURFACE IS NOT SMOOTH.SDR HEEA077758Gearbox · vibrationTAIL ROTOR GEARBOX PRODUCING HIGH FREQUENCY VIBRATION.SDR HEEA077744Gearbox · corrodedTAIL ROTOR GEARBOX SHAFT SPLINES PITTED.SDR HEEA077464Rod End Bearing · wornPITCH CONTROL ROD SPHERICAL BEARING WORN.
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