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 QMLA2012091912156Gearbox · making metalWHILE TRANSITIONING OVER AIRPORT, TAIL ROTOR GEAR BOX CHIP LIGHT ILLUMINATED. DECLARED AN EMERGENCY AND LANDED. ON FINAL, CHIP LIGHT EXTINGUISHED. LANDING WAS WITH OUT INCIDENT. FELT NO UNUSUAL PRESSURE OR VIBRATION IN THE CONTROLS. MECHANIC FOUND AN INSISep 19, 2012 · N490H · Snias AS350B3SDR CA120913006Support · cracked(CAN) MFG HAS RECEIVED A REPORT CUSTOMER, TT: 9930 HRS, OF A REPORTED 1 PIECE T/R GEARBOX SUPPORT CRACKED. THE CRACK WAS NOTED FOLLOWING AN INSPECTION AFTER THE PILOT REPORTED VIBRATIONS IN FLIGHT. THE AREA HAD BEEN PREVIOUS INSPECTED 30 HOURS PRIOR DURING TAug 28, 2012 · Bell 206B3SDR QMLA2012082212141Gearbox · making metalTAIL GEARBOX CHIP LIGHT ILLUMMINATED DURING FLIGHT. 3 MM CHIP WAS FOUND.Aug 22, 2012 · N392LG · Snias AS350B3SDR QMLA2012082012136Gearbox · making metalACFT RECEIVED A TAIL ROTOR GEARBOX CHIP LIGHT UPON ENGINE START UP THAT COULD NOT BE CLEARED USING CHIP PULSE. LIGHT ILLUMINATED BEFORE TAKEOFF WAS INITIATED AND BOTH ENGINES WERE SHUTDOWN NORMALLY. UPON INSPECTION, FOUND T/R GREARBOX CHIP DETECTOR TO HAVE MAug 20, 2012 · N880SL · Bolkms BK117B2SDR P4YA2012081000001Thermostat · failedAFTER TAKEOFF, CREW NOTICED TRANSMISSION OIL PRESSURE WAS BELOW THE MINIMUM CONTINUOUS LIMIT IAW THE RFM (35 PSI). CREW RETURNED TO BASE AND SHUTDOWN. MAINTENANCE REMOVED, DISSASSEMBLED, CLEANED AND REINSTALLED SNUBBER. ALSO, R & R THERMOSTAT. PERFORMED GAug 10, 2012 · N408RC · Skrsky S61NSDR QMLA2012070112110Chip Detector · dirtyDURING CRUISE FLIGHT, 4 MINUTES AFTER DEPARTURE TAIL ROTOR CHIP CAUTION SEGMENT ILLUMINATED. PILOT PERFORMED EMERGENCY PROCEDURE IAW FMS 9.2-15-5. TAIL ROTOR CHIP REMAINED ILLUMINATED. PILOT LANDED WITHOUT FURTHER INCIDENT, ACFT SHUTDOWN. MECHANIC REMOVED Jul 1, 2012 · N102VU · Bolkms BK117C2SDR QMLA2012062112104Gearbox · leakingDURING PIC WALKAROUND, NOTED EXCESSIVE AMOUNTS OF OIL THAT LEAKED OUT OF THE TAIL GEARBOX.Jun 21, 2012 · N197AM · Snias AS350B2SDR CA120612015Bearing · failed(CAN) CHECKED CHIP PLUG AFTER 1.5 HRS OPERATING TIME, DUE TO METAL FOUND ON PLUG DURING 100 HR INSPECTION, REMOVED T/R GEARBOX AND INSTALLED SPARE. CHECKED TGB CONTROL ROD AT 100 HR INSPECTION IAW ASB 05-00-61 R1, AND FOUND MEASUREMENT TO BE CORRECT, FLUSHED Jun 11, 2012 · Aerosp SA365N1SDR CA120829002Support · cracked(CAN) FOUND A CRACK ORIGINATING FROM HOLE ON TAIL ROTOR GEAR BOX SUPPORT. NO FURTHER DETAILS WERE PROVIDED. PART WAS REPLACED.Jun 2, 2012 · Bell 206L1SDR QMLA2012051812085Gearbox · making metalACFT RECEIVED A TAIL ROTOR GEARBOX CHIP LIGHT UPON DESCENT THAT COULD NOT BE CLEARED USING CHIP PULSE. A NORMAL LANDING WAS COMPLETED WITHOUT INCIDENT. UPON INSPECTION, FOUND TAIL ROTOR GREARBOX CHIP DETECTOR TO HAVE TWO LARGE OBJECTS OF DEBRIS ATTATCHED. AMay 18, 2012 · N911KD · Bolkms BK117B2SDR QMLA2012051412080Chip Detector · contaminatedACFT RECEIVED A TAIL ROTOR GEARBOX CHIP LIGHT DURING DESCENT THAT COULD NOT BE CLEARED USING CHIP PULSE. A NORMAL LANDING COMPLETED WITHOUT INCIDENT. INSPECTION FOUND TAIL ROTOR GEARBOX CHIP DETECTOR TO HAVE ONE SMALL SLIVER OF DEBRIS ATTATCHED. AFTER REVIEMay 14, 2012 · Bolkms BK117B2SDR QMLA2012051212079Gearbox · cokedPRIOR TO TAKEOFF, MASTER CAUTION & TAIL ROTOR CHIP LIGHT ILLUMINATED. ABORTED MISSION. MECHANIC INSPECTED TAIL ROTOR CHIP PLUG, CLEANED CHIP PLUG, REPLACED TAIL GEARBOX OIL, COMPLETED 10 MINUTE GROUND RUN, INSPECTED TAIL GEARBOX CHIP PLUG, RETURNED ACFT TO SEMay 12, 2012 · N612AM · Bolkms BK117B2SDR CA120507014Seal · leaking(CAN) INPUT SEAL LEAKING SO SEAL WAS REPLACED AND GROUND RUN TO CONFIRM NO LEAKS.May 5, 2012 · Snias AS350B2SDR CA120507015Seal · leaking(CAN) INPUT SEAL LEAKING. TGB REMOVED FOR REPAIR.May 2, 2012 · Snias AS350B2SDR QMLA2012041312060Casting · crackedFOUND OIL LEAKING AROUND VERTICAL FIN AREA. INSPECTED AREA AND FOUND TAIL ROTOR GEARBOX LEAKING AND NOTICED THAT TAIL ROTOR CASTING WAS ALSO CRACKED. UPON DISASSEMBLY FOUND THAT TAIL ROTOR HEAD BOLT HAS BEEN GALLED AND TEFLON FROM TORSION TENSION STRAP HAS BEApr 13, 2012 · N117NC · Bolkms BK117C1SDR 2012FA0000267Shaft · corrodedDURING 60 MONTH INSPECTION FOUND PITTING ON OUTPUT SHAFT ABOUT 4 INCHES INBD FROM END OF SHAFT. SHAFT DETERMINED TO BE UNSERVICEABLE.Apr 2, 2012 · N407LG · Bell 407SDR CA120221013Nut · backed out(CAN) FLANGE ROCKING ON SPLINES. RETAINING NUT APPEARS TO BE BACKED OFF ENOUGH TO ALLOW FLANGE MOVEMENT.Feb 16, 2012 · Snias AS350B3SDR CA120123006Swashplate · worn(CAN) DURING A REGULAR INSPECTION THE TAIL ROTOR SWASHPLATE BEARING WAS TURNED BY HAND AND FOUND TO BE ROUGH. THE TAIL ROTOR SWASHPLATE WAS REMOVED FROM SERVICE AND A SERVICEABLE UNIT WAS INSTALLED.Jan 20, 2012 · Hughes 369DSDR QMLA2012011912008Bolt · brokenWHILE PERFORMING A ZONE 4 INSPECTION IAW AMC AAIP, WHICH REQUIRES AN INSPECTION OF THE TAIL ROTOR GEARBOX FOR PROPER TORQUE OF ATTACHING HARDWARE. DURING THIS INSPECTION, ONE BOLT BROKE WITH MINIMAL EFFORT. REMOVED THE TAIL ROTOR GEARBOX TO INSPECT AND FOUNDJan 19, 2012 · N485UH · Bolkms BK117A4SDR QMLA2011112611113Gearbox · making metalUPON SEVERAL ATTEMPTS TO BALANCE THE TAIL BLADE ASSY, THE MECHANIC HAD NUMEROUS CHIP LIGHT EVENTS. THE LAST INSPECTION OF THE CHIP PLUG FOUND NUMEROUS FLAKES TO DEEM THE TAIL ROTOR GEARBOX AS UNAIRWORTHY. TAIL ROTOR GEARBOX WAS REPLACED AND THE ACFT WAS RETUNov 26, 2011 · N779LF · Bolkms BK117C2SDR CA111205015Support · cracked(CAN) DURING FIELD INSPECTION OF AFT TAIL ROTOR GEAR BOX SUPPORT, THE LT BOLT ATTACH HOLE THROUGH CASTING WAS FOUND TO BE CRACKED. DURING REPAIR OF DAMAGED PART, 3 RIVETS IN LOCAL AREA WERE FOUND TO BE SHEARED, AND SEVERED. AFTER ASSESSING THE DAMAGED AREA, INov 3, 2011 · Bell 206B3SDR CA111202005Control Lever · misinstalled(CAN) T/R CONTROL LEVER, PN 350A33-1526-00, FOUND NOT TO HAVE LOCK FLUID PRESENT ON BUSHINGS IAW MECHANICAL REPAIR MANUAL, 65-20-00-708, PAR 4.1. (A). UPPER AND LOWER BUSHINGS FOUND TO HAVE CAUSED ABNORMAL PLAY IN T/R CONTROL LEVER HOUSING.Nov 3, 2011 · Snias AS350*SDR CA111016001Magnetic Plug · damaged(CAN) IN CRUISE FLIGHT, PILOT SEES "GB CHIP" LIGHT FLASHING INTERMITTENTLY. HE LANDS SAFELY AND AFTER SHUTDOWN, DISCOVERS THE TAIL GEARBOX CHIP DETECTOR OUT OF ITS RECEPTACLE, HANGING BY THE ELECTRICAL CABLE. OIL LEVEL IN THE GEARBOX IS NORMAL, NO LEAK. THE Oct 13, 2011 · Urocop EC120BSDR CA111012005Output Seal · torn(CAN) UPON RECEIPT OF THE GEARBOX, THE SIGHT GLASS WAS VERY DARK IN COLOR. A BACKLASH CHECK WAS CARRIED OUT AND RECORDED AT .005 (WITHIN LIMITS). THE OUTPUT SHAFT RADIAL PLAY WAS RECORDED AT .003 (OUT OF LIMITS). INPUT/OUTPUT SHAFT ROTATIONS APPEARED TO BE Oct 11, 2011 · Bell 206L4SDR 2011FA0000673Bearing · failedFAILURE OF INPUT PINION TAPERED ROLLER BEARING OF TAIL ROTOR GEARBOX. FAILURE OCCURRED DURING GROUND RUN AFTER MX. REPLACEMENT OF TAIL ROTOR GEARBOX. TAIL ROTOR GEARBOX INPUT CASING DISCOLORED DUE TO OVERHEATING OF FAILED BEARING. INPUT PINION SEIZED.Sep 13, 2011 · N38MD · Urocop AS365N3SDR CA110727001Gearbox · damagedTAIL ROTOR FIPS SLIP RING WAS FOUND SEPARATED FROM THE GEARBOX AT THE DI. DAMAGE ALSO FOUND TO T/R GEARBOX.Jul 24, 2011 · Agusta AW139SDR CA110706001Gearbox · making metalTAIL ROTOR GEARBOX WARNING LIGHT ILLUMINATED IN FLIGHT. ACFT RETURNED TO DEPARTURE POINT. METAL WAS FOUND ON THE TAIL ROTOR GEARBOX CHIP PLUG. TAIL ROTOR GEARBOX REPLACED.Jun 15, 2011 · Snias AS350B2SDR QMLDMG2013Seal · leakingAFTER A MX FLIGHT, FOUND THE TAIL ROTOR GEARBOX LEAKING OIL. AFTER FURTHER INVESTIGATION FOUND THE GEAR BOX OUTPUT SEAL INNER SPRING BROKEN AND PIECES OF THE SEAL MISSING. REPLACING THE TAIL ROTOR GEAR BOX.Apr 21, 2011 · N135DU · Urocop EC135T2SDR CA110428013Magnetic Seal · leakingTAIL ROTOR GEARBOX INPUT SEAL STARTED LEAKING 21.1 HRS, AFTER INSTALLING THE REPAIRED GEARBOX.Apr 18, 2011 · Snias AS350B3SDR QMLA2011041511047Gearbox · making metalPILOT REPORTED A TAIL ROTOR CHIP LIGHT FLICKER AND THE LIGHT WENT ON SOLID AT LANDING. PILOT CALLED THE MECHANIC WHO INSPECTED THE CHIP DETECTOR AND FOUND A CHIP. MECHANIC THEN DRAINED THE GEAR BOX, SERVICED AND DID A 30 MINUTE GROUND RUN. INSPECTED THE CHApr 15, 2011 · N1174U · Bolkms BK117B2SDR CA110324008Output Seal · leaking(CAN) ON 100HR INSPECTION, FOUND OIL LEAK IN TAIL ROTOR GEARBOX FAIRINGS. AFTER REMOVING OUTPUT SEAL HOUSING, FOUND THE SPRING OF THE SEAL ON THE WEAR SLEEVE, AND WEAR SLEEVE WORN OVER 50 PERCENT THRU. AFTER CALLING REPS AND OTHER COMPANYS WE FOUND THAT THISMar 14, 2011 · Bell 206L4SDR RMXA20110220001Gearbox · failedWHILE IN FLIGHT, PILOT NOTICED SUDDEN VIBRATION IN TAIL ROTOR PEDALS AND CYCLIC. LANDED THE AIRCRAFT AND CALLED TECHNICIAN. TECHNICIAN CHECKED THE TAIL ROTOR AND SURROUNDING AREA. CHECKED TAIL ROTOR GEAR BOX FOR SECURITY AND ALSO THE TAIL ROTOR CHIP DETECTOR AFeb 20, 2011 · N94CH · Bell 206L4SDR CA110105004Seal · leaking(CAN) WITHIN LIMITS BUT UNECESSARY THIS SEEMS RELATED TO OIL TYPE MOST OF THE LEAKS START WHEN THE OIL IS CHANGED FROM SUMMER TO WINTER OILS. OUR BEST RESULTS OF NO LEAK IS WITH MOBIL 254 MIL-L-23699 WHICH IS ONLY APPROVED FOR SUMMER OPERATIONS. WHEN WE CHANGDec 2, 2010 · Snias AS350B3SDR 2010FA0001198Seal · unserviceableSEAL WAS LEAKING - HAVE NOTICED AN INCREASE IN T/R GEARBOX SEAL FAILURES.Nov 3, 2010 · N353MH · Snias AS350B3SDR CA101102009Magnetic Seal · leaking(CAN) TAIL ROTOR GEAR BOX INPUT SEAL LEAKING OIL. CHANGED SEAL TO AVOID RUNNING OUT OF OIL IN THE GEAR BOX.Oct 29, 2010 · Snias AS350B2SDR QMLA2010081610051Gearbox · making metalENROUTE TO DROP OFF PATIENT, PILOT REPORTED TAIL ROTOR GEARBOX CHIP WARNING LIGHT IN FLIGHT; FIRST IT FLASHED, THEN REMAINED STEADY. PILOT COMPLETED UNSCHEDULED LANDING AT NEARBY AIRPORT. WHEN MECHANIC INSPECTED T/R GB CHIP DETECTOR; MULTIPLE METAL FLAKES/SPLIAug 16, 2010 · N563AM · Snias AS350B2SDR CA100804015Gearbox · making metalTHE TAIL ROTOR GEARBOX WAS GENERATING METAL CONTAMINATION. TAIL ROTOR GEARBOX REPLACED.Jul 26, 2010 · Snias AS350BASDR QMLA2010011610001Fitting · crackedDURING INSP OF TAIL ROTOR GEARBOX CHIP DETECTOR DISCOVERED CRACK IN VERTICAL FIN NOSE RIB AT TAIL ROTOR GEARBOX ATTACHMENT POINT. FURTHER INVESTIGATION REVEALED THAT TAIL ROTOR GEARBOX FITTING WAS ALSO CRACKED AT UPPER LT CORNER. ACFT WAS REMOVED FROM SERVICJan 16, 2010 · N117J · Bolkms BK117B1SDR CA090714009Gearbox · making metal(CAN) T/R GEARBOX CHIP DETECTOR PICKED UP PARTICLES, PARTICLES. CHIP DETECTOR WAS CLEANED AND REFILLED, AFTER THE GROUND RUN PARTICLES FOUND AGAIN AND A WHITE FILM IN THE SIGHT GUAGE. T/R GEARBOX REPLACED.Jul 10, 2009 · Robsin R44RAVENIISDR CA090528003Gearbox · leaking(CAN) GEARBOX LEAKING EXCESSIVELY.May 13, 2009 · Bell 206BSDR CA090511009Seal · leaking(CAN) SEAL FOUND LEAKING DURING DAILY CHECK.May 4, 2009 · Bell 212SDR LEU2009F00000Gearbox · making metalACFT MADE A PRECAUTIONARY LANDING DUE TO THE ILLUMINATION OF A TAIL ROTOR GEARBOX CHIP LIGHT. INSP REVEALED A SMALL SLIVER AND ACFT WAS RETURENED TO SERVICE IAW THE MM. METAL MOST LIKELY CONTRIBUTED TO BEING A NEW RECENTLY INSTALLED GEARBOX. (K)Mar 25, 2009 · N373TC · Bolkms BK117C2SDR CA090213006Shaft · bent(CAN) TAILROTOR WAS UNABLE TO BALANCE, TROUBLESHOOTING REVEALED THE OUTPUT SHAFT WAS BENT.Feb 10, 2009 · Bell 206BSDR CA081212012Magnetic Seal · leaking(CAN) MAG SEAL LEAK AT INPUT SEAL OF TGB.Dec 1, 2008 · Snias AS350B3SDR 2008FA0000889Pinion Gear · deformedTHE MAIN TRANSMISSION WAS DELIVERED FOR OVERHAUL. THERE WAS NO NOTICE ABOUT AN INCIDENT OR A CHIP WARNING. CHIP DETECTOR AND OIL FILTER WERE CLEAN. AT THE BEGINNING OF THE DISASSEMBLY, MECHANIC NOTED THAT THE TAILROTOR DRIVE DIDN’T MOVE WHEN THE INPUT FLANGNov 19, 2008 · N315LS · Bolkms BO105LSA3SDR LEU2008F00000Chip Detector · shortedON 7/15/2008 AIRCRAFT MADE A PRECAUTIONARY LANDING DUE TO ILLUMINATION OF A TAIL ROTOR CHIP CAUTION LIGHT. INSPECTION REVEALED A DEFECTIVE CHIP DETECTOR WHICH GAVE A FALSE INDICATION. (K)Jul 15, 2008 · N373TC · Bolkms BK117C2SDR ZESA2008009Gearbox · making metalDURING FLIGHT, TAIL ROTOR CHIP LIGHT ILLUMINATED. THE PILOT LANDED ASAP AND COMPLIED WITH LJ AVIATION SOP BY REMOVING AND INSPECTING CHIP DETECTOR. FOUND SMALL HAIRLIKE SLIVER. CLEANED AND REINSTALLED CHIP DETECTOR WITH NEW O-RINGS, GROUND RUN PERFORMED SATJun 13, 2008 · N70AP · Bell 407SDR CA080516003Gearbox · leaking(CAN) 90 DEGREES, GEARBOX STARTED LEAKING AFTER 7.8 HOURS OF FLIGHT. UPON LANDING (TOTAL FLIGHT TIME OF 24.1 HOURS ON THE HOURMETER),THE OIL LEVEL WAS CHECKED IN THE 90 DEGREE AND FOUND TO BE EMPTY, WITH OIL SPLASHED ALL OVER THE GEARBOX. THE GEARBOX WAS FILLEMay 13, 2008 · Bell 412EPSDR AC2A119524Gearbox · crackedFLANGE MOUNTING EAR COMPLETELY CRACKED ON TAIL ROTOR GEAR BOX OUTPUT SLEEVE HOUSING.Apr 21, 2008 · N430CH · Bell 430SDR CA080327007Gearbox · leaking(CAN) TAILROTOR GEARBOX FOUND LEAKING FROM THE INPUT SEAL DURING DIMar 7, 2008 · Robsin R44RAVENII
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