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.

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.Jul 29, 1996 · N4493X · Bolkms BK117A3SDR 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.Jul 29, 1996 · N317MC · Bolkms BK117C1SDR 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 OFJul 27, 1996 · N611SJ · Bell 222USDR 96ZZZX4102Shaft · mismanufacturedNEW SHAFT RECEIVED FROM BELL FOUND TO BE MACHINED IMPROPERLY.Jul 23, 1996 · Bell 206BELLSDR CA970311026Gerarbox · making metal(CAN) POOR GEAR PATTERN CAUSED FUZZ ON CHIP PLUG. INPUT SEAL AND PITCH SEALS LEAKING.Jul 16, 1996 · Bell 206BSDR 96ZZZX4619Gear Box · chip lightTAIL ROTOR CHIP LIGHT ILLUMINATED, ATTEMPTED TO PULSE OFF THREE TIMES, LANDED, CONTACTED MAINTENANCE.Jul 11, 1996 · Bolkms BK117B1SDR 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.Jul 8, 1996 · N317MC · Bolkms BK117C1SDR 96ZZZX5751Bearing · scoredBEARING ROLLERS ARE SCORED.Jul 8, 1996 · N317MC · Bolkms BK117C1SDR 96ZZZX5749Bearing · scoredBEARING ROLLERS ARE SCORED.Jul 8, 1996 · N317MC · Bolkms BK117C1SDR 96ZZZX4662Bearing · scoredBEARING ROLLERS ARE SCORED.Jul 8, 1996 · N317MC · Bolkms BK117C1SDR 96ZZZX4661Bearing · scoredBEARING ROLLERS ARE SCORED.Jul 8, 1996 · N317MC · Bolkms BK117C1SDR 96ZZZX4660Bevel Gear Tooth · pittedPITTING ON TOOTH FACE IS REASON FOR REJECTION.Jul 8, 1996 · N317MC · Bolkms BK117C1SDR 96ZZZX3860Laminated Hinge · wornDURING ROUTINE MAINTENANCE, FOUND TEETERING BEARINGS WORN BEYOND LIMITS. REPLACED WITH NEW BEARINGS.Jul 8, 1996 · N911TX · Aerosp AS355ESDR ERAA96273Roller Bearing · failedOUTER RACE BREAKING DOWN.Jun 28, 1996 · N427EH · Bolkms BO105SSDR ERAA96272Roller Bearing · failedOUTER RACE BREAKING DOWN.Jun 28, 1996 · N427EH · Bolkms BO105SSDR HEEA967489Gearbox · corrodedPART IS CORRODED. (CORROSION ON DRIVE SPLINES) REMOVED FROM MAST S/N A13-01164, T.T. 4271:05.Jun 27, 1996 · N5748M · Bell 214STSDR HEEA967463Bearing · separatedRUBBER SEPARATED.Jun 21, 1996 · N4000L · Snias AS350B2SDR 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 REJun 21, 1996 · Bell 212SDR HEEA967409Gearbox · corrodedPART IS CORRODED. (OUTPUT SHAFT SPLINES CORROSION PITTED OR FRETTING DUE TO TAIL ROTOR BLADE ASSEMBLY RETAINING NUT LOSING TORQUE.Jun 12, 1996 · N3897N · Bell 214STSDR HCMA9631Lamification · worn excessPART IS WORN EXCESSIVELY. REMOVED AND REPLACED.Jun 10, 1996 · N312B · Snias AS350BASDR 97ZZZX2826Laminate Hinge · crackedRUBBER LAMINATE IS CRACKED 360 DEGREES AROUND PART.Jun 9, 1996 · N911NT · Snias AS350BSDR HCMA9629Bearing · worn excessPART IS WORN EXCESSIVELY.Jun 6, 1996 · N642BH · Snias AS350BASDR HCMA9628Bearing · worn excessPART IS WORN EXCESSIVELY.Jun 6, 1996 · N642BH · Snias AS350BASDR HEEA967385Bearing · failedBEARING SEPARATED. ORIGINAL EQUIPMENT RECEIVED INSTALLED ON N6100U ON 8-17-95.Jun 5, 1996 · N6100U · Snias AS350B2SDR HEEA967377Rod · bearing wornBEARING WORN. REPLACED WITH SERVICEABLE PART.Jun 5, 1996 · N60951 · Snias AS350B2SDR HCMA9624Lamification · crackedREAR ROTOR LAMIFICATION IS CRACKED.Jun 5, 1996 · N532BH · Snias AS350BASDR HCMA9623Lamiffcation · crackedREAR ROTOR LAMIFICATION IS CRACKED.Jun 5, 1996 · N532BH · Snias AS350BASDR HCMA9622Lamification · rubber tornLAMIFICATION RUBBER IS TORN BEYOND LIMITS.Jun 5, 1996 · N982BH · Snias AS350B2SDR HCMA9621Hinge Laminate · crackedREAR ROTOR LAMIFICATION IS CRACKED.Jun 5, 1996 · N972BH · Snias AS350B2SDR HCMA9620Hinge Laminate · crackedREAR ROTOR LAMIFICATION IS CRACKED.Jun 4, 1996 · N992BH · Snias AS350B2SDR HEEA967283Shaft · defectiveBOLT HOLES DO NOT ALIGN PROPERLY WITH THREADED HOLES OF BEVEL GEAR.May 30, 1996 · N27805 · Bell 212SDR HEEA967268Lever · wornTR GR BOX CONTROL LEVER SMALL BORE WORN.May 22, 1996 · N60951 · Snias AS350B2SDR 96ZZZX3238Laminated Hinge · bearing failedPREMATURE FAILURE OF LAMINATED TEETERING BEARING. T/R YOKE REMOVED AND REPLACED.May 15, 1996 · N911TM · Aerosp AS355F1SDR HEEA967230Bearing · defectiveDUPLEX BEARING CAGES SQUEEZE ON INNER RACE OF BEARING CAUSING A BIND ON INNER RACE AND DOESN'T TURN FREELY.May 14, 1996 · N2258F · Bell 412SDR ERAA96235Roller Bearing · making metalGEARBOX MAKING METAL.May 6, 1996 · N127EH · Bolkms BO105SSDR ERAA96234Conical Roller · making metalGEARBOX MAKING METALMay 6, 1996 · N127EH · Bolkms BO105SSDR ERAA96233Roller Bearing · making metalGEARBOX MAKING METALMay 6, 1996 · N127EH · Bolkms BO105SSDR ERAA96232Bearing · making metalBEARING WITH 16.7 HRS ROUGH, GEARBOX MAKING METAL.May 3, 1996 · N133EH · Bolkms BO105SSDR 96ZZZX3965Spider · defectiveTAIL ROTOR SPIDER ASSEMBLY HAS LOOSE BEARING BAFFLES. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Apr 19, 1996 · N96LG · Snias AS350B2SDR HEEA966991Spider · wornSPIDER BUSHINGS AND SPHERICAL BEARING ARE WORN.Apr 10, 1996 · N6100R · Snias AS350B2SDR HEEA966988Spider · bearing wornT/R SPIDER SPHERICAL BEARING WORN.Apr 10, 1996 · N6095S · Snias AS350B2SDR HEEA966940Output Shaft · paint peelOUTPUT SHAFT PAINT IS PEELING.Apr 8, 1996 · N131AE · Bolkms BO105SSDR 96ZZZX2797Chip Plug · failedKNOB ON CHIP PLUG SEPARATED FROM MAGNET. REMOVED AND REPLACED CHIP PLUG.Apr 8, 1996 · N365SJ · Aerosp SA365NSDR CA960502028Gearbox · wearing(CAN) OIL CONSTANTLY DARK AND PASTE FOUND ON CHIP DETECTOR REPEATEDLY.Apr 6, 1996 · Bell 206BSDR HEEA966932Gearbox · corroded300 HOUR INSPECTION DUE. NOTE: CORROSION FOUND BEYOND LIMITS)Apr 5, 1996 · N230UN · Bell 230SDR 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 DIREApr 1, 1996 · Bell 205A1SDR 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.Mar 30, 1996 · N1VH · Agusta A109A2SDR HEEA966843Spider · worn bearingPART IS WORN EXCESSIVELY. (WORN BEARINGS)Mar 13, 1996 · N350BZ · Snias AS350B2SDR ERAA96206Roller Bearing · making metalGEARBOX MAKING METAL. ROLLERS ARE ROUGH, METAL CHIPS FOUND ON ROLLERS.Mar 1, 1996 · N133EH · Bolkms BO105SSDR 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.Feb 28, 1996 · Snias AS350B2
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