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 CA080303008Gearbox · making metal(CAN) UPON WALK AROUND OIL IN GEARBOX LOOKED DIRTY, OIL WAS DRAINED AND METAL WAS FOUND ON MAGNETIC PLUG, TAIL ROTOR GEARBOX WAS REMOVED FROM SERVICE AND OH ONE INSTALLED AND ACFT WAS RELEASED. MORE INFO WILL BE POSTED AS THE GEARBOX IS DISASSEMBLED.Feb 29, 2008 · Bell 47G2SDR CA071204008Bearing · overheated(CAN) ON FIRST FLIGHT OF THE DAY, AIRCRAFT WAS GROUND TAXIING TO TAKE OFF AREA WHEN GROUND CREW NOTICED SMOKE FROM TAIL ROTOR DRIVE INTERMEDIATE GEAR BOX AREA. AIRCRAFT WAS SHUT DOWN, AND INSPECTION REVEALED OVERHEATING IN THE INPUT BEARING AREA. SIKORSKY AND Nov 29, 2007 · Skrsky S61NSDR CA071019001Sight Glass · loose(CAN) DURING INSPECTION, IT WAS NOTED THAT THERE WAS FLUID LEAKING AROUND THE TAIL ROTOR GEARBOX SIGHT GLASS. THE PART WAS REMOVED AND REPLACED WITH A NEW PART. IT WAS FURTHER EXAMINED AND NOTED THE GLASS COULD ROTATE IN THE HOUSING, NO LONGER SECURE ALLOWING Oct 17, 2007 · Robsin R44RAVENIISDR 2007FA0000510Lock Nut · backed outDURING GROUND RUNUP, PILOT NOTICED TAIL ROTOR NOT SPINNING. AIRCRAFT SHUTDOWN AND RETURNED TO HANGER. UPON DISASSEMBLY IT WAS NOTED THAT THE NUT PN 269A6029 THAT ATTACHES THE DRIVE COUPLING TO THE GEARBOX HAD BACKED OUT COMPLETELY AND WORN A HOLE THROUGH THE AJun 18, 2007 · N27YS · Hughes 269CSDR CA070510006Gear · worn(CAN) GEAR SET, PINION GEAR AND BEVEL GEAR WEAR AND PRODUCED METAL. GEAR SET SCRAPPED DUE TO SPALLING. GEAR SET INSTALLED AT LAST OVERHAUL OF THE GEARBOX. TGB TSN 4632.8 / TSO 691.2 GEAR SET TSN 691.2 (TC NR 20070510006)May 10, 2007 · Snias AS350B2SDR CA070419004Bearing · making metal(CAN) DURING ROUTINE 100 HR INSPECTION THE OIL WAS FOUND TO BE DARKER IN COLOR THAN NORMAL, AFTER CLOSER INSPECTION AND CHECKING FOR STEEL WITH A MAGNET THE DARKNESS IN COLOR WAS ATTRIBUTED TO METAL CONTAMINATION IN THE OIL SO FINE THAT IT LOOKED LIKE METALLICApr 19, 2007 · Bell 47G2SDR CA070327009Gearbox · leaking(CAN) OIL LEAK. SHIPPED TO AUTHORIZED SERVICE CENTER FOR REPAIR AND RE-INSTALLATION. (TC NR 20070327009)Mar 13, 2007 · Bell 206LSDR BAQA200600001Nut · brokenDURING PRE-FLIGHT INSPECTION FOR A MAINTENANCE INDUCTION CHECK FLIGHT, FOUND PLAY IN THE TAIL ROTOR OUTPUT FLANGE. GROUNDED AIRCRAFT. REMOVED TAIL ROTOR OUTPUT FLANGE NUT FROM MAIN GEARBOX, AND FOUND THE LOCKING TABS BROKEN OFF OF THE NUT.Oct 9, 2006 · N164CF · Aerosp AS365N2SDR 2006FA0001136Bearing · cracked(REF NR MDR06-089) THE IGB CHIP DETECTOR INDICATED A CHIP LIGHT. IGB WAS REMOVED AND THE INNER RACE WAS FOUND TO BE CRACKED THROUGH AND SPALLED. PROBABLE CAUSE: UNKNOWN. (K)Oct 6, 2006 · N229AC · Skrsky S64FSDR AC2A110989Gearbox · looseDURING 50 HOUR INSPECTION, FOUND TAIL ROTOR GEAR BOX LOOSE ON ITS MOUNTING STUDS. INSPECTED TAILBOOM MOUNTING PADS VIA DIE PENETRANT, NO DEFECTS FOUND. INSTALLED SERVICABLE TAIL ROTOR GEAR BOX ASSEMBLY.Aug 16, 2006 · N427CU · Bell 427SDR PG9A110514Gearbox · making metalINTERMITTENT TGB CHIP LIGHT ILLUMINATION IN FLIGHT. INSPECTED CHIP PLUG, DRAINED, FLUSHED, AND SERVICED TGB. IAW EUROCOPTER EC130 MM CH 5-50-00, 6-1. HOVER CHECK GOOD, AIRCRAFT RETURNED TO SERVICE.Jul 27, 2006 · N130GC · Urocop EC130B4SDR CA060630006Gearbox · failed(CAN) TAIL ROTOR GEARBOX CHIP LIGHT ILLUMINATED IN FLIGHT. AIRCRAFT LANDED AND CHIP DETECTOR EXAMINED, MALL AMOUNT OF FERROUS MATERIAL ON DETECTOR. DETECTOR CLEANED AND SERVICEABILITY CHECK CARRIED OUT. ON RETURN TO LANDING SITE, SMALL AMOUNT OF FINE HAIR LIJun 27, 2006 · Snias AS350BASDR YTRR109168Gearbox · crackedDURING ROUTINE 100-HOUR AIRFRAME INSPECTION, FOUND TAIL ROTOR GEARBOX CASTING CRACKED.May 4, 2006 · N410RL · Bell 206L4SDR B652006F00000Bolt · shearedDURING COURSE OF AN ACCIDENT INVESTIGATION, IT WAS NOTED THAT BOLTS THAT CONNECT TAIL ROTOR DRIVE SHAFT TO INPUT THOMAS COUPLING OF INTERMEDIATE GEARBOX WERE SHEARED. SHEARING TOOK PLACE JUST BELOW GRIP LENGTH AREA OF BOLT . SHEARED BOLTS WERE STILL IN FLANGApr 13, 2006 · N202LF · Bolkms BO105LSA3SDR KBM2006F00092Stud · looseT/R GEAR BOX, UNIT HAS LOOSE STUD AT 12 OCLOCK POSITION, REMOVED AND REPLACED. (K)Feb 6, 2006 · N884SH · Snias AS350B2SDR KBM2006F00019Gearbox · making metalT/R GEARBOX CHIP LIGHT CAME ON DURING FLIGHT. REMOVED T/R GEARBOX CHIP DETECTOR FOUND METAL PASTE ACCUMULATION. REMOVED PASTE, SERVICED W/MODEL 254. PERFORMED GROUND RUN. REMOVED, INSPECTED AND REINSTALLED, NO DEFECTS. RETURNED TO SERVICE. (K)Jan 10, 2006 · N350SH · Snias AS350B2SDR KBM2006F00034Bearing · wornLAMINATED BEARINGS, BEARINGS ARE WORN. REMOVED AND REPLACED. (K)Jan 3, 2006 · N53SH · Snias AS350B1SDR AU510002144Gearbox · making metal(AUS) TAIL ROTOR GEARBOX METAL CONTAMINATION. INVESTIGATION FOUND THE INPUT SHAFT REAR BEARING PN 369D25417 TO BE UNSERVICEABLE. INPUT SHAFT PN 369D25434 CRACKED IN AREA UNDER BEARING. (CASA NR 510002144)Dec 12, 2005 · Hughes 369DSDR KBM2005F00337Ball End · wornBALL END WORN, REMOVED AND REPLACED. (K)Nov 15, 2005 · N1188P · Snias AS350BASDR KBM2005F00336Bearing · wornLAMINATED BEARINGS ARE WORN, REMOVED AND REMPLACED. (K)Nov 15, 2005 · N1188P · Snias AS350BASDR KBM2005F00332Bearing · cutLAMINATED BEARING, UNIT HAS MULTIPLE CUTS, REMOVED AND REPLACED. (K)Oct 30, 2005 · N37SH · Snias AS350BASDR KBM2005F00326Bearing · cutLAMINATED BEARING, UNIT HAS MULTIPLE CUTS. REMOVED AND REPLACED. (K)Oct 27, 2005 · N115SH · Snias AS350B2SDR KBM2005F00329Ball End · wornBALL END WORN. REMOVED AND REPLACED. (K)Oct 24, 2005 · N115SH · Snias AS350B2SDR KBM2005F00315Bearing · failedT/R HINGE LAMINATED BEARING HAD MULTIPLE CUTS IN RUBBER. REPLACED WITH NEW. (K)Oct 16, 2005 · N351WM · Snias AS350B2SDR KBM2005F00291Ball End · wornSPIDER BALL END WORN BEYOND LIMITS. REPLACED WITH OVERHAULED UNIT. (K)Sep 26, 2005 · N351WM · Snias AS350B2SDR KBM2005F00287Bearing · tornLAMINATED BEARING, UNIT RUBBER TORN, REMOVED AND REPLACED. (K)Sep 19, 2005 · N215LA · Snias AS350B1SDR KBM2005F00262Bearing · cutLAMINATED BEARING, UNIT HAS CUTS AROUND THE RUBBER, REMOVED AND REPLACED. (K)Sep 16, 2005 · N230SH · Snias AS350B2SDR KBM2005F00274Ball End · wornT/R BALL END WORN BEYOND LIMITS. REMOVED AND REPLACED WITH OVERHAULED UNIT. (K)Sep 15, 2005 · N751H · Snias AS350B2SDR KBM2005F00277Bearing · cutT/R HUB HINGE LAMINATED BEARING HAS MULTIPLE CUTS, REMOVED AND REPLACED. (K)Sep 4, 2005 · N884SH · Snias AS350B2SDR KBM2005F00238Bushing · debondedTAIL ROTOR GEAR BOX LEVER BUSHING HAD DEBONDED. REPLACED TRGB CONTROL LEVER WITH NEW. (M)Sep 1, 2005 · N966SH · Snias AS350B2SDR KBM2005F00241Ball End · wornBALL END HAS EXCESSIVE PLAY. REPLACED WITH O/H UNIT. (M)Aug 28, 2005 · N313LV · Snias AS350B2SDR KBM2005F00244Bushing · debondedTRGB LEVER CONTROL ARM BUSHING IS DEBONDED, REMOVED AND REPLACED. (M)Aug 20, 2005 · N1188P · Snias AS350BASDR AU510001577Shaft · wrong partTAIL ROTOR GEARBOX PINION SHAFT WORN AND INCORRECT PART. BELL 47 SI 428 CALLED FOR REPLACEMENT OF P/N 47-645-205-1 WITH P/N 47-645-205-3 SHAFT.Aug 6, 2005 · Bell 47G3B1SDR KBM2005F00163Bearing · crackedLAMINATED BEARING, UNIT HAS CRACKED AND BULGE AROUND THE RUBBER. REMOVED AND REPLACED. (K)Jul 10, 2005 · N313LV · Snias AS350B2SDR ALG2005F00043Chip Detector · malfunctionedIN CRUISE FLIGHT, THE T/R CHIP/HOT CAUTION LIGHT CAME ON, PILOT FOLLOWED EMERGENCY CHECK LIST AND LANDED. THE MECHANIC CLEANED AND INSPECTED THE CHIP PLUG AND COMPLIED WITH PENALTY RUN IAW MM AND AIRCRAFT WAS RETURNED TO SERVICE. (K)Jul 7, 2005 · N518AL · Skrsky S76ASDR 2005FA0001200Bevel Gear · crackedCASE CRUSHING OR SPALLING WITH CRACKS. COMPONENT COMING DUE 3600 HR TBO. SUBMITTED FOR ROUTINE OVERHAUL. DEFECTS FOUND DURING NORMAL DETAIL BENCH INSPECTION. COMPONENT HAS A 10,800 HOUR SERVICE LIFE LIMIT. (K)Jun 28, 2005 · N117BK · Bolkms BK117B2SDR CA050610003Gearbox · making metal(CAN) ON INSPECTION A SMALL BUT SIGNIFICANT QUANTITY OF FUZZ WITH SOME SMALL FLAKES WAS FOUND ON THE MAGNETIC CHIP DETECTOR. THE SAME HAD BEEN NOTICED ON THE PREVIOUS100 HOUR INSPECTION. NO CHIP LIGHT HAD BEEN REPORTED. THE OIL WAS DRAINED ON THE PREVIOUS INSPJun 9, 2005 · Bolkms BO105SSDR ALG2005F00033Chip Detector · contaminatedDURING TAKE OFF, TRANSMISSION CHIP LIGHT CAME ON DURING TAKEOFF, RETURNED TO DEPARTURE. MAINTENANCE REMOVED ALL CHIP PLUGS, FOUND NORMAL WEAR LINT LIKE PARTICLE ON LOWER PLUG. CLEANED PLUGS AND A 30 MINUTE PENALTY RUN WAS PERFORMED ALL CHECKS WERE GOOD. WORMay 27, 2005 · N527AL · Bell 407SDR 2005FA0000819Gear · crackedTGB AND SERVO ASSY REMOVED FROM ACRFT FOR MAKING METAL. GEARBOX DISASSEMBLED AND DURING VISUAL INSP OF OUTPUT GEAR, ONE TOOTH FOUND CRACKED. FRIVE SIDE OF TOOTH SHOWS THE MAJORITY OF CRACKING, STARTING FROM IB TO ALMOST MIDWAY ON TOOTH EXTENDING ACROSS TIP LApr 14, 2005 · N159AC · Skrsky S64FSDR CA050309003Spring · mismanufactured(CAN) OIL LEAK FROM T/R GEARBOX OUT PUT. THE SPRING INSIDE THE SEAL WHEN TO THE SEAL LIP AND MARK THE SLEEVE. THIS IS THE SECOND TIME IN 2 WEEKS, THE SPRING IS TO TIGHT AND PUSHES TO MUCH ON THE SEAL LIP .Mar 8, 2005 · Bell 206L1SDR EAHR200500001Spacer · crackedCRACK ON ID OF SPACER OF TAIL ROTOR GEARBOX.Mar 8, 2005 · Enstrm 280FXSDR KBM2005F00037Bearing · cutBEARING HAS MULTIPLE CUTS AROUND THE RUBBER. REMOVED AND REPLACED. (K)Mar 5, 2005 · N53SH · Snias AS350B1SDR KBM2005F00036Bearing · wornLAMINATED BEARINGS, WORN. REMOVED AND REPLACED. (K)Mar 4, 2005 · N345SH · Snias AS350B2SDR CA050309002Seal · leaking(CAN) T/R GEARBOX OUTPUT SEAL LEAKING, SENT FOR SEAL REPLACEMENT. THE SPRING INSIDE THE SEAL WAS AT THE SEAL LIP AND MARKED THE SLEEVE .Feb 28, 2005 · Bell 206L1SDR CA050312003Magnetic Seal · dislodged(CAN) AFTER LANDING, OIL WAS FOUND ALL OVER TAIL GEARBOX AREA, MAINTENANCE WAS CALLED AND T/R G/B WAS REPLACED WITH A RENTAL AND NO FURTHER PROBLEM WAS FOUND. UPON INSPECTION AT MAIN BASE THE VENT HOLE ON THE INPUT WAS FOUND PLUGGED UP , THIS WE FEEL WAS THE Feb 23, 2005 · Snias AS350DSDR KBM2005F00038Bearing · wornLAMINATED BEARING, WORN. REMOVED AND REPLACED. (K)Feb 2, 2005 · N1188P · Snias AS350BASDR CA050308014Gearbox · leaking(CAN) UPON A PREFLIGHT IT WAS NOTED THAT ALL OIL HAD EXITED THE TAIL ROTOR GEARBOX. THE INPUT SEAL WAS THE AREA WHERE THE OIL EXITED. THE GEARBOX WAS REPLACED AS A PRECAUTION.Jan 25, 2005 · Snias AS350B2SDR CA041226001Magnetic Seal · cracked(CAN) UPON LANDING AT DESTINATION AFTER A 40 MINUTE FLIGHT. PILOT CARRIED OUT A WALKAROUND AND NOTICED AN UNUSUAL AMOUNT OF OIL ON TAILBOOM FROM BELOW TAIL ROTOR GEARBOX. OIL LEVEL WAS CHECKED AND WAS FOUND TO BE DOWN A LITTLE BUT STILL IN ACCEPTABLE RANGE LDec 24, 2004 · Snias AS350B3SDR TXER098386Gearbox · making metalGEARBOX MAKING METALDec 6, 2004 · N588BP · Aerosp AS355NSDR VY12008F00000Gearbox · destroyedPERFORMED A PRELIMINARY REVIEW OF THE SERVICE HISTORY OF THE GEARBOX THAT WAS RECEIVED FOR OVERHAUL. IT WAS DETERMINED THAT THE GEARBOX WAS INVOLVED IN AN ACCIDENT. BASED ON THE ACCIDENT THAT OCCURRED ON 9 NOV 2004, MFG HAS DETERMINED THAT ALL DYNAMIC COMPONENNov 9, 2004 · N655TV · Snias AS350B
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