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 96ZZZX4668Shaft · plating missingTAIL ROTOR GEARBOX OUTPUT SHAFT SILVER PLATING MISSING ON THREE SPOTS ON INSIDE DIAMETER OF SHAFT. NOT ACCEPTABLE IAW CURRENT REM 305 MANUAL. PART IS NO GOOD AS IS.SDR 96ZZZX4664Shaft · plating missingTAIL ROTOR GEARBOX OUTPUT SHAFT, SILVER PLATING IS MISSING ON ONE SPOT ON INSIDE DIAMETER OF SHAFT. NOT ACCEPTABLE IAW CURRENT REM 305 MANUAL. PART IS NO GOOD AS IS.SDR 96ZZZX4770Gearbox · making metalTAIL ROTOR GEARBOX CHIP LIGHT CAME ON IN-FLIGHT ACCOMPANIED WITH A HIGH PITCH INTERMITTENT SQUEAL. TOOK THREE ATTEMPTS WITH FUZZ BURNER SYSTEM TO EXTINGUISH THE LIGHT. FAILURE OF ONE OF THE INTERNAL BEARINGS OF THE 90 DEGREE GEARBOX. FOUND CHIP PLUG FULL OFSDR 96ZZZX4102Shaft · mismanufacturedNEW SHAFT RECEIVED FROM BELL FOUND TO BE MACHINED IMPROPERLY.SDR CA970311026Gerarbox · making metal(CAN) POOR GEAR PATTERN CAUSED FUZZ ON CHIP PLUG. INPUT SEAL AND PITCH SEALS LEAKING.SDR 96ZZZX4619Gear Box · chip lightTAIL ROTOR CHIP LIGHT ILLUMINATED, ATTEMPTED TO PULSE OFF THREE TIMES, LANDED, CONTACTED MAINTENANCE.SDR 96ZZZX5752Shaft · damagedHEAVY SCRAPE MARK ON I.D. OF SHAFT GOES THROUGH SILVER PLATING INTO THE BARE METAL AND THIS IS REASON FOR REJECTION IAW CORRECT REM 3095 MANUAL.SDR 96ZZZX5751Bearing · scoredBEARING ROLLERS ARE SCORED.SDR 96ZZZX5749Bearing · scoredBEARING ROLLERS ARE SCORED.SDR 96ZZZX4662Bearing · scoredBEARING ROLLERS ARE SCORED.SDR 96ZZZX4661Bearing · scoredBEARING ROLLERS ARE SCORED.SDR 96ZZZX4660Bevel Gear Tooth · pittedPITTING ON TOOTH FACE IS REASON FOR REJECTION.SDR 96ZZZX3860Laminated Hinge · wornDURING ROUTINE MAINTENANCE, FOUND TEETERING BEARINGS WORN BEYOND LIMITS. REPLACED WITH NEW BEARINGS.SDR ERAA96273Roller Bearing · failedOUTER RACE BREAKING DOWN.SDR ERAA96272Roller Bearing · failedOUTER RACE BREAKING DOWN.SDR HEEA967489Gearbox · corrodedPART IS CORRODED. (CORROSION ON DRIVE SPLINES) REMOVED FROM MAST S/N A13-01164, T.T. 4271:05.SDR HEEA967463Bearing · separatedRUBBER SEPARATED.SDR CA960729002Bearing · broken cage(CAN) WHILE INVESTIGATING AN OIL LEAK IN THE AREA OF THE TAIL ROTOR DRIVE QUILL AT THE REAR OF THE MAIN GEARBOX, THE AME REMOVED THE SUSPECTED LEAKING SEAL. IT WAS FOUND THAT THE INNER CAGE OF THE BEARING HAD BROKEN AND THE BALL BEARINGS WHERE LOOSE IN WHAT RESDR HEEA967409Gearbox · corrodedPART IS CORRODED. (OUTPUT SHAFT SPLINES CORROSION PITTED OR FRETTING DUE TO TAIL ROTOR BLADE ASSEMBLY RETAINING NUT LOSING TORQUE.SDR HCMA9631Lamification · worn excessPART IS WORN EXCESSIVELY. REMOVED AND REPLACED.SDR 97ZZZX2826Laminate Hinge · crackedRUBBER LAMINATE IS CRACKED 360 DEGREES AROUND PART.SDR HCMA9629Bearing · worn excessPART IS WORN EXCESSIVELY.SDR HCMA9628Bearing · worn excessPART IS WORN EXCESSIVELY.SDR HEEA967385Bearing · failedBEARING SEPARATED. ORIGINAL EQUIPMENT RECEIVED INSTALLED ON N6100U ON 8-17-95.SDR HEEA967377Rod · bearing wornBEARING WORN. REPLACED WITH SERVICEABLE PART.SDR HCMA9624Lamification · crackedREAR ROTOR LAMIFICATION IS CRACKED.SDR HCMA9623Lamiffcation · crackedREAR ROTOR LAMIFICATION IS CRACKED.SDR HCMA9622Lamification · rubber tornLAMIFICATION RUBBER IS TORN BEYOND LIMITS.SDR HCMA9621Hinge Laminate · crackedREAR ROTOR LAMIFICATION IS CRACKED.SDR HCMA9620Hinge Laminate · crackedREAR ROTOR LAMIFICATION IS CRACKED.SDR HEEA967283Shaft · defectiveBOLT HOLES DO NOT ALIGN PROPERLY WITH THREADED HOLES OF BEVEL GEAR.SDR HEEA967268Lever · wornTR GR BOX CONTROL LEVER SMALL BORE WORN.SDR 96ZZZX3238Laminated Hinge · bearing failedPREMATURE FAILURE OF LAMINATED TEETERING BEARING. T/R YOKE REMOVED AND REPLACED.SDR HEEA967230Bearing · defectiveDUPLEX BEARING CAGES SQUEEZE ON INNER RACE OF BEARING CAUSING A BIND ON INNER RACE AND DOESN'T TURN FREELY.SDR ERAA96235Roller Bearing · making metalGEARBOX MAKING METAL.SDR ERAA96234Conical Roller · making metalGEARBOX MAKING METALSDR ERAA96233Roller Bearing · making metalGEARBOX MAKING METALSDR ERAA96232Bearing · making metalBEARING WITH 16.7 HRS ROUGH, GEARBOX MAKING METAL.SDR 96ZZZX3965Spider · defectiveTAIL ROTOR SPIDER ASSEMBLY HAS LOOSE BEARING BAFFLES. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.SDR HEEA966991Spider · wornSPIDER BUSHINGS AND SPHERICAL BEARING ARE WORN.SDR HEEA966988Spider · bearing wornT/R SPIDER SPHERICAL BEARING WORN.SDR HEEA966940Output Shaft · paint peelOUTPUT SHAFT PAINT IS PEELING.SDR 96ZZZX2797Chip Plug · failedKNOB ON CHIP PLUG SEPARATED FROM MAGNET. REMOVED AND REPLACED CHIP PLUG.SDR CA960502028Gearbox · wearing(CAN) OIL CONSTANTLY DARK AND PASTE FOUND ON CHIP DETECTOR REPEATEDLY.SDR HEEA966932Gearbox · corroded300 HOUR INSPECTION DUE. NOTE: CORROSION FOUND BEYOND LIMITS)SDR CA960412011Output Shaft · cracked(CAN)DURING PREMATURE OVERHUAL INCLUDING A MAGNAFLUX OF THE OUTPUT DRIVESHAFT, A CRACK WAS DETECTED ON THE SHAFT IN THE TAIL ROTOR CONE AREA, JUST INBOARD OF THE SPLINES SUPPORTING THE TAIL ROTOR YOKE. THECRACK EXTENDED FOR 0.5 INCHES IN A CIRCUMFERENTIAL DIRESDR 96ZZZX1983Attach Fitting · crackedINSPECTION FOUND A CRACK IN THE 90 DEGREE GEARBOX ATTACH FITTING UPPER LT CORNER RUNNING LATERALLY ACROSS TO THE UPPER VERTICAL FIN ATTACH PLATE. ADDITIONAL PORTS CRACKED INCLUDE PN 109-0372-41-5 AND PN 109-0372-41-3.SDR HEEA966843Spider · worn bearingPART IS WORN EXCESSIVELY. (WORN BEARINGS)SDR ERAA96206Roller Bearing · making metalGEARBOX MAKING METAL. ROLLERS ARE ROUGH, METAL CHIPS FOUND ON ROLLERS.SDR HEEA966755Gear Set · making metalGEARS WERE INSTALLED ON GEARBOX S/N M-811 AT T.S.O. -0-. AFTER 112 HOURS METAL PARTICLES WERE FOUND ON CHIP DETECTOR. UPON DISASSEMBLY, FOUND UNUSUAL SCUFFING ON GEAR TEETH, NO OTHER DEFECTS WERE FOUND ON GEARBOX.
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