JASC 6420

Service difficulty reports · 907

Reports filed under 6420 · Tail Rotor Head, 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 = '6420'
  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 CA080117002Bearing · unserviceable(CAN) FOUND TAIL ROTOR HUB ASSY OB BEARING CAGE INSERT OUT OF IS SOCKET. ASSY SEND FOR O/H. (TC NR 20080117002)Jan 17, 2008 · Bell 205A1SDR CA080107004Bearing · rough(CAN) WHILE DOING AD 2003-04-04 THE BEARINGS WERE FOUND ROUGH ON ROTATION. PART WAS REPLACED WITH NEW. (TC# 20080107004)Jan 2, 2008 · Robsin R22BETASDR CA071120004Shim · inoperative(CAN) T/R VIBRATION DISCOVERED AND SUBSEQUENT STROBING WAS NOT EFFECTIVE AT REMOVING THE VIBRATION. DURING INSPECTION OF THE T/R HUB ASSEMBLY WAS FOUND TO HAVE BOTH PRE AND POST (TB: 206-91-139) METHODS OF TRUNNION CENTERING PERFORMED. SHIM 120-006C15-0 AND THNov 16, 2007 · Bell 206BSDR 14011OCT3107Scissor Link · brokenUPON THE PILOTS DAILY INSPECTION HE FOUND THE SUSPECT PART APPERARED TO BE CRACKED. THE MECHANIC REMOVED THE PART FROM AIRCRAFT AND PART CAME APART AT ONE OF THE MOUNTING EARS.Oct 31, 2007 · N820NA · Agusta A119SDR N820NA103107Scissor Link · brokenUPON THE PILOTS DAILY INSPECTION, HE FOUND THE SUSPECT PART APPEARED TO BE CRACKED. THE MECHANIC REMOVED THE PART FROM AIRCRAFT AND PART CAME APART AT ONE OF THE MOUNTING EARS.Oct 31, 2007 · N820NA · Agusta A119SDR CA071023008Mechanism · worn(CAN) DURING THE TAIL ROTOR PITCH CHANGE MECHANISM PORTION OF THE 100 HOUR INSP, THE PITCH CONTROL TUBE BUSHING AND/OR BEARING WERE FOUND WORN BEYOND LIMITS ON THE CONTROL TUBE ASSY. AN EXHAUSTIVE CHECK OF PAPER WORK WAS CARRIED OUT FOR THE TSN AND TSO, THESEOct 22, 2007 · Bell 206BSDR AC2A118587Bearing · wornTAIL ROTOR HAS WORN FEATHERING BEARINGS.Oct 22, 2007 · N17238 · Bell 206L3SDR AC2A118586Bearing · wornTAIL ROTOR HAS WORN FEATHERING BEARINGS.Oct 22, 2007 · N17238 · Bell 206L3SDR CA070828004Bearing · worn(CAN) PILOT WAS FLYING HELICOPTER AND FELT TWO SLIGHT YAWS TO THE RT APPROXIMATELY 30 TO 40 SECONDS APART. AT FIRST THE PILOT SUSPECTED IT MIGHT HAVE BEEN A GUST OF WIND, BUT THE SECOND YAW ALERTED THE PILOT TO A PROBLEM WITH THE TAIL ROTOR AS IT WAS ACCOMPANIAug 21, 2007 · Bell 204BSDR 061907Control Arm · crackedTAIL ROTOR CONTROL LEVER FOUND CRACKEDJun 14, 2007 · N304ME · Bolkms BK117C2SDR 200706092204Bearing · bindingPILOT EXPERIENCED BINDING IN THE T/R CONTROLS. DIRT WAS FOUND IN T/R GRIP BEARINGS CAUSING BINDING IN CONTROL.Jun 9, 2007 · N112LL · Bolkms BK117A3SDR PG9A114592Tie Rod · brokenDURING A 100HR INSPECTION, FOUND TWO TT BARS WITH BROKEN LAMINATES. REPLACED WITH NEW.Mar 15, 2007 · N132GC · Urocop EC120BSDR BAQA2007004Bushing · debondedFOUND EXCESSIVE PLAY IN THE TAIL ROTOR HUB PITCH CHANGE ASSEMBLY. AFTER DISASSEMBLY WE FOUND BUSHING P/N 109-0133-07-101 DEBONDED FROM SLEEVE ASSEMBLY P/N 109-0130-70-119. WE ALSO FOUND DAMAGE TO THE TAIL ROTOR GEARBOX OUTPUT SHAFT P/N 109-0445-08-115.S/N 55Jan 12, 2007 · N109UP · Agusta A109ESDR CA070123007Cone · split(CAN) ON 06 JAN 07, THE TAIL ROTOR HEAD WAS IN PROCESS OF BEING REPLACED WHEN IT WAS NOTICED THAT THE IB SET OF SPLIT CONES WHICH CENTER AND SUPPORT THE TAIL ROTOR HUB LOADS WERE MISSING. FURTHER INVESTIGATION FOUND THAT WHEN THIS TAIL GEARBOX WAS INSTALLED 59Jan 6, 2007 · Skrsky S92ASDR AC2A112005Scissors · damagedDAMAGED TO SCISSORS FROM CONTACT OF LONG COUPLING, REPLACED SCISSORS.Nov 11, 2006 · N139CW · Agusta AB139SDR AC2A112004Scissors · damagedDAMAGED TO SCISSORS FROM CONTACT OF LONG COUPLING, REPLACED SCISSORS.Nov 11, 2006 · N139CW · Agusta AB139SDR CA060828004Bearing · worn(CAN) PITCH LINKS WERE FOUND TO BE CONTACTING THEIR SPACERS, CAUSING THEM TO WEAR INTO THE STAKING AROUND THE BEARING ON THE PITCH LINKS. TAFT 53.1 HOURS. ALL HARDWARE WAS PROPERLY INSTALLED. (TC NR 20060828004)Aug 27, 2006 · Robsin R44RAVENIISDR CA060828005Bearing · worn(CAN) PITCH LINKS WERE FOUND TO BE CONTACTING THEIR SPACERS, CAUSING THEM TO WEAR INTO THE STAKING AROUND THE BEARING ON THE PITCH LINKS. TAFT 161.6 HOURS. ALL HARDWARE WAS PROPERLY INSTALLED. THIS WAS THE SECOND OCCURENCE OF THIS ON OUR FLEET IN 2 DAYS. TAug 26, 2006 · Robsin R44RAVENIISDR CA060807002Bearing · noisy(CAN) FOUND DURING 500 HOUR INSPECTION. ABNORMAL BEARING NOISE, AXIAL WEAR BEYOND LIMITS. (TC NR 20060807002)Aug 6, 2006 · Snias AS350BASDR KBM2006F00104Ball End · wornT/R SPIDEER BALL END WORN BEYOND LIMITS. REMOVED AND REPLACED. (K)Feb 24, 2006 · N37SH · Snias AS350BASDR KBM2006F00096Bearing · delaminatedLAMINATED BEARING, UNSERVICEABLE AT INSPECTION, REMOVED AND REPLACED. (K)Feb 21, 2006 · N884SH · Snias AS350B2SDR KBM2006F00086Bearing · shearedT/R YOKE HUB HINGE ARE SHEARED AROUND THE RUBBER, REMOVED AND REPLACED. (K)Feb 16, 2006 · N751H · Snias AS350BASDR KBM2006F00100Ball End · wornBALL END, UNIT WORN BEYOND LIMITS, REMOVED AND REPLACED. (K)Feb 9, 2006 · N966SH · Snias AS350B2SDR ALG2006F00011Pitch Link · looseIN FLIGHT, TAIL ROTOR PRODUCED A VIBRATING NOISE. TIGHTEN T/R PC LINK CAP NUT ONE FLAT. INSPECTED SYSTEM AND CHECKED WITH VIBRATION GEAR. EVERYTHING CHECKED OK. ALL WORK IAW MM. (K)Jan 24, 2006 · N497AL · Bell 407SDR KBM2006F00016Magnetic Seal · leakingMAG SEAL LEAKING ON NR 5 OUT PUR DRIVE FOR TAIL ROTOR, REMOVED AND REPLACED. (K)Jan 6, 2006 · N345SH · Snias AS350BASDR KBM2006F00018Bushing · wornT/R PITCH LINK, BUSHING WORN BEYOND LIMITS, REMOVED AND REPLACED. (K)Jan 1, 2006 · N350SH · Snias AS350B2SDR KBM2006F00001Ball End · wornT/R SPIDER BALL END CONSISTS OF EXCESSIVE PLAY, REMOVED AND REPLACED. (K)Dec 30, 2005 · N250SH · Snias AS350B2SDR AU510002066Washer · failed(AUS) TAIL ROTOR FORK ASSEMBLY NUT TABWASHER FAILED ALLOWING THE NUT TO WORK LOOSE. AIRCRAFT THEN SUFFERED A LOSS OF TAIL ROTOR CONTROL WHICH RESULTED IN A FORCED LANDING WITH MINOR AIRCRAFT DAMAGE. INVESTIGATION FOUND A BROKEN INTERNAL TAB ON THE TABWASHER.(Dec 12, 2005 · Hughes 369ESDR AU510001926Trunnion · cracked(AUS) TAIL ROTOR HUB ASSEMBLY TRUNNION CRACKED ON INNER BEARING RACE. (OTHER CAUSE: MATERIAL ) (CASA NR 510001926)Dec 12, 2005 · Bell 205BSDR CA051123003Bushing · crackedDURING THE DAILY INSPECTION, IT WAS NOTICED BLACK T/R BLADE FLAPPING HINGE HADE A LITTLE MORE RESISTANCE, (SIDE TO SIDE MOTION) THAN THE OTHER BLADES. AFTER FURTHER INVESTIGATION IT WAS FOUND THAT THE BUSHING HAD SOME BRINELLING, WHEN THE BUSHING WAS REMOVED Nov 22, 2005 · Snias AS332LSDR CA051107001Bushing · cracked(CAN) UPON VISUAL INSPECTION, THERE WAS CORROSION FOUND ON THE INSIDE DIAMETER OF THE INNER STEEL BUSHING. THE CORROSION WAS REMOVED AND THE CRACKS WERE THEN VISIBLE. THE CRACKS WERE FOUND RUNNING AXIALLY. THE PITCH LINK WAS REPAIRED IN 2003, AND HAS 804.4 HNov 6, 2005 · Snias AS350BASDR CA050914003Bearing Race · brinelled(CAN) TAIL ROTOR HUB ASSY WAS REMOVED TO REPLACE TX BLADES. TO ALLOW A PROPER STATIC BALANCE THE YOKE WAS TAKEN APART AND CLEANED. ONE INNER RACE ON THE YOKE WAS SERVICEABLE, THE OTHER RACE WAS FOUND BADLY BRINELLED. THE ASSEMBLY LOOKED TO BE PROPERLY GREASSep 14, 2005 · Bell 206BSDR KBM2005F00264Link · wornT/R P/C LINK, WORN BEYOND LIMITS. REPLACED WITH SERVICEABLE UNIT. (K)Aug 30, 2005 · N313LV · Snias AS350B2SDR KBM2005F00253Bearing · bulgedUNIT HAS CUTS AND BULGING. REMOVED AND REPLACED LAMINATED BEARING. (M)Aug 10, 2005 · N751H · Snias AS350B2SDR KBM2005F00215Pitch Link · crackedUNIT HAS MULTIPLE CRACKS IN BUSHING, REMOVED AND REPLACED. (K)Aug 5, 2005 · N115SH · Snias AS350B2SDR KBM2005F00168Pitch Link · damagedUNIT APPEARS TO BE DAMAGED IN IB BEARING ATTACHMENT. BEARING WORN. REMOVED AND REPLACED. (K)Jul 29, 2005 · N115SH · Snias AS350B2SDR CA050715002Turnbuckle · unsecureLOCKWIRE LEFT UNLOCKWIRED RESULTING IN TURNBARREL BECOMING UNDONE RESULTING IN TAILROTOR PITCH CHANGE FAILURE. SPEED RIGS WERE LOCK WIRED ON THE ONE END BUT THE ENGINEER DIDN'T RECOGNIZE THE OTHER END REQUIRED LOCKWIRE.Jul 10, 2005 · Bell 204BSDR KBM2005F00116Ball End · wornT/R SPIDER END BEARING WORN. REMOVED AND REPLACED. (K)Jun 21, 2005 · N115SH · Snias AS350B2SDR 2005FA0000827Bearing · brinelledAT OVERHAUL, REMOVED HUB BEARING INNER RACES AND FOUND (1 EACH) CRACKED ABOUT 1.5 INCHES DUE TO SEVERE BRINNELING. PROBABLE CAUSE COULD BE DUE TO GREASE (MINIMAL AMOUTS). RECOMMEND DAILY PURGING OF HUB BEARING TO PREVENT ANOTHER OCCURENCE. (K)Jun 1, 2005 · N1043T · Skrsky S61ASDR CA050524002Bearing · failed(CAN) 1) BEARING ROUGH. 2) REPLACED SPIDER.May 10, 2005 · Snias AS350BASDR KBM2005F00064Hub · cutT/R HUB HAS CUT AROUND THE RUBBER, REMOVED AND REPLACED. (K)Apr 5, 2005 · N115SH · Snias AS350B2SDR CA050418006Housing · worn(CAN) DURING INSPECTION THE TAIL ROTOR CONTROL WAS REMOVED AND INSPECTED FOR WEAR. WEAR WAS FOUND BEYOND LIMITS IN THE HOUSING. THIS ITEM IS A 1000 HOUR OVERHAUL INTERVAL.Apr 4, 2005 · Bell 204BSDR KBM2005F00073Bearing · wornLAMINATED BEARINGS WORN. REMOVED AND REPLACED. (K)Mar 24, 2005 · N215LA · Snias AS350B1SDR YTRR099951Hub · looseTAIL ROTOR HUB ASS'Y TRUNNION WAS FOUND LOOSE IN THE PILLOW BLOCKS. ON INSPECTION FOUND THE THRUST PLUGS COMPRESSED. TAIL ROTOR HUB ASS'Y WAS PURCHASED NEW.Mar 22, 2005 · N209RA · Bell 206B3SDR S6G2005F00000Pin · crackedAFTER DISASSEMBLY OF T/R HUB ASSY, REQUIRED DUE TO SCHEDULED 600 HOUR INSPECTION AND RETENTION STRAP REPLACEMENT (CLOSE TO RETIREMENT LIFE), FOUND STRAP PIN (PN 109-8131-08-1, TSN 4070) AND RETENTION STRAP (PN 109-8131-07-1 TSN 1735). ALSO, REPLACED STRAP PIJan 6, 2005 · N60NM · Agusta A109CSDR TXER099450Hub · wornWEAR LIMITS EXCEEDED ON TAIL ROTOR HUB.Dec 17, 2004 · N120TX · Urocop EC120BSDR KBM2005F00004Bearing · wornHALF SHELLS WORN, REMOVED AND REPLACED.(K)Dec 4, 2004 · N53SH · Snias AS350B1SDR KBM2005F00006Bearing · wornTAIL ROTOR HALF SHELLS, BEARINGS WORN. REMOVED AND REPLACED. (K)Nov 20, 2004 · N966SH · Snias AS350B2SDR CA041007002Tail Rotor · misrigged(CAN) TAIL ROTOR FLAPPING ANGLE FOUND SET TO 18 DEGREES INSTEAD OF THE CORRECT ANGLE OF 12 DEGREES ALLOWING POSSIBLE COTACT WITH TAILBOOMOct 6, 2004 · Bell 206BSDR CA041005004Hub · oversized(CAN) T/R HUB FOUND TO HAVE 1.6255 - 1.6260, INTERNAL DIAMETER FOR ELASTOMERIC FLAPPING BEARING INSTALL, OVERSIZE FROM .0002 TO .0007.Sep 23, 2004 · Bell 407
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