JASC 6320

Service difficulty reports · 1,930

Reports filed under 6320 · Main 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 = '6320'
  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 BAQA200700040Spacer · crackedPILOT REPORTED AT 11 PERCENT TORQUE A VIBRATION WAS FELT AND A CLUNK WAS HERD. INSPECTED MAIN ROTOR SYSTEM. LIFTED MAST AND FOUND .35 INCHES OF AXIAL PLAY. DISASSEMBLED MAST ASSEMBLY AND FOUND THE SPACER TUBE CRACKED IN (2) PLACES AND THE KEYS OF THE SPACERDec 4, 2007 · N911TS · Urocop EC135P1SDR CA071126010Gearbox · making metal(CAN) INTERMEDIATE GEAR BOX CHIP LIGHT ILLUMINATED IN FLIGHT. AFTER LANDING CHIP PLUG INSPECTION CONFIRMED METAL CONTAMINATION, AS WELL AS PAINT DISCOLORATION WAS NOTED IN THE INPUT BRG AREA. ASSY WILL BE SENT TO OH SHOP FOR INVESTIGATION. (TC NR 20071126010)Nov 22, 2007 · Skrsky S61NSDR 110107Warning Light · illuminatedDURING CRUISE FLIGHT MISSION, THE RT GEARBOX LIGHT CAME ON STEADY. THE ENGINE WAS SHUTDOWN IAW AFM PROCEDURES. THE AIRCRAFT LANDED UNEVENTFULLY, AND TAXIED TO THE RAMP. NO EMERGENCY WAS DECLARED.Nov 20, 2007 · N810CB · Gulstm G159SDR CA071115007Bearing · spalled(CAN) MGB REMOVED DUE TO MAKING METAL, THE ABOVE BEARING WAS FOUND TO BE SPALLED (TC NR 20071115007)Nov 14, 2007 · Skrsky S76CSDR CA071126011Fitting · broken(CAN) DURING THE INSPECTION OF THE LIFT LINK AREA, A CRACK WAS NOTED ON THE LIFT LINK FITTING. UPON FURTHER INVESTIGATION THE AFT EAR WAS COMPLETLY BROKEN FROM THE FITTING. THE BOLT SECURING THE LIFT LINK TO THE FITTING WAS INCORRECT FOR THAT PN OF FITTING. THNov 13, 2007 · Bell 205A1SDR CA071127011Fitting · cracked(CAN) ON ROUTINE INSPECTION, A CRACK WAS NOTED IN THE LIFT LINK FITTING. TRANSMISSION WAS REMOVED AND SENT FOR REPAIR. THE TSO FOR THE COMPLETE TRANSMISSION WAS AT 785.1 AND TT 19803.1. NO AVAILABLE INFORMATION FOR TT ON THE SUMP ASSY CASE. (TC NR 20071127011)Nov 5, 2007 · Bell 205A1SDR CA071102013Bearing Cage · making metal(CAN) DURING ROUTINE INSPECTION, SMALL AMOUNT OF BRASS WAS FOUND IN OIL SCREEN, THE TRANSMISSION WAS DISASSEMBLED TO LOCATE THE FAILED ITEM AND IT WAS FOUND TO BE ONE OF THE BEARING CAGES IN THE DUPLEX BEARING THAT THE UPPER SUN GEAR GOES THROUGH, THIS IS THE Nov 1, 2007 · Bell 47G2SDR 2007F00065Transmission · crackedCRACK FOUND ON MAIN GEARBOX (TRANSMISSION IN VERTICAL CAST WEBBING ABOVE ENGINE TO TRANSMISSION DRIVE QUILL. MILITARY TECHNICAL MANUAL ALLOWS .2500 INCH RADIUS/POLISH INTO WEBBING THIS CRACK HAS BEEN FOUND ON THREE (3 EACH) TRANSMISSIONS ON OTHER AC WITH ONE Oct 16, 2007 · N4040P · Bell UH1FSDR CA071114007Chip Detector · shorted(CAN) MAIN GEARBOX MAGNETIC CHIP PLUG SHORTED INTERNALLY. (TC NR 20071114007)Oct 12, 2007 · Urocop EC120BSDR Y5CR200700001Bevel Gear · brokenPART OF TOOTH ON INPUT BEVEL GEAR BROKEN OFF.Oct 5, 2007 · Doug MD500ESDR CA071023006Gearbox · making metal(CAN) APPROXIMATELY 5 MILES FROM DESTINATION, MAG NR1 LIGHT ILLUMINATED. PULSED OFF AND 2 MINUTES LATER LIGHT BACK ON. NR1 THROTTLE ROTATED TO IDLE, CONTINUED APPROACH TO DESTINATION, CRASH TRUCK ADVISED. ON FINAL, NR1 THROTTLE ADVANCED AND NORMAL LANDING CAROct 3, 2007 · Bolkms BO105SSDR CA071022006Gearbox · making metal(CAN) APPROXIMATELY 5 MILES FROM AIRPORT, MAGI NR1 LIGHT ILLUMINATED. PULSED OFF AND 2 MINUTES LATER LIGHT ILLUMINATED AGAIN. AN EMERGENCY LANDING WAS CARRIED OUT. BOTH NR1 AND NR2 MAGNETIC PLUGS CHECKED AND FOUND CONTAMINATED WITH METAL. THE GEARBOX WAS REPLAOct 3, 2007 · Bolkms BO105SSDR BAQA200700034Gearbox · misalignedWHILE PERFORMING THE FIRST SPACER TUBE INSPECTION SINCE OVERHAUL ON THE MAIN GEARBOX THE LOWER MOUNT P/N 117-12415-01 S/N KA-0267 WAS REMOVED AND HAD MECHANICAL DAMAGE DUE TO THE ANTI-ROTATION PINS ON THE SPACER ASSY. P/N 117-12418-01 BEING MISALIGNED ON THE MOct 1, 2007 · N296GL · Bolkms BK117B2SDR M7K2008F00088Oil Tank · leakingOIL LEAK FOUND ON DECK DURING POST FLIGHT INSP. CRACK FOUND AT OIL TANK FILLER NECK EXTERNAL WELD. THIS SIS A COMMON PROBLEM THAT OCCURS TO THIS COMPONENT AND IS AGGRAVATED BY CAP BEING INSTALLED TOO AGGRESSIVELY DURING OIL SERVICING. SUGGEST MFG IMPROVE EXSep 19, 2007 · N813MH · Urocop EC130B4SDR 2007FA0000812Quill Assy · wornQUILL INTERNAL SPLINES WORN AND DAMAGED IN QUILL TUBE CONTACT AREASep 19, 2007 · N3053Q · Bell UH1HSDR AC2A117290Transmission · warning lightA FEW MINUTES AFTER DEPARTING SP78B, THE TRANSMISSION CHIP LIGHT BRIEFLY ILLUMINATED AND THEN WENT OUT. COMPLETED A 180 DEGREE TURN TOWARDS SP78B AND THE LIGHT ILLUMINATED AND REMAINED, LANDED AND SHUTDOWN.Sep 12, 2007 · N53702 · Bell 206L3SDR CA070924002Drive Gear · broken(CAN) MAIN ROTOR TRANSMISSION REMOVED DUE TO CHIP LIGHT ILLUMINATION. TRANSMISSION RETURNED TO HELICOPTERS COMPONENT OVERHAUL SHOP FOR REPAIR. UPON DISMANTLE IT WAS DISCOVERED THAT THE I/P GEAR HAD FAILED AND EXHIBITED ONE COMPLETE TOOTH BROKEN OFF FROM THE GESep 11, 2007 · Hughes 369DSDR AC2A117321Transmission · making metalTRANSMISSION CHIP LIGHT ILLUMINATED. 1 VERY SMALL FLAKE AND 1 SMALL HAIR SLIVER ON LT TRANSMISSION CHIP DETECTOR. CHECKED AND CLEANED PLUG, ALSO CHECKED THE OTHER (2) CHIP DETECTORS AND FOUND TO BE CLEAN. PENALTY RAN AIRCRAFT FOR 1 HOUR WITH NO FURTHER CHIP LISep 10, 2007 · N427GT · Bell 427SDR HEER117214Transmission · corrodedDURING MAST REPLACEMENT FOUND INTERIOR SURFACES OF MAIN TRANSMISSION CORRODED AND RUSTED. REPLACED MAIN TRANSMISSION AND WILL BE SENT TO MFG FOR CORE EXCHANGE.Sep 3, 2007 · N343PH · Urocop EC135P2SDR AC2A117123Transmission · making metalXMSN CHIP / CHP PLTRY GB ILLUMINATED IN FLIGHT 8 MINUTES AFTER DEPARTURE FROM ICY HELIPORT. AIRCRAFT RETURNED TO ICY WITHOUT INCIDENT.SMALL AMOUNT OF METAL WAS FOUND ON TRANSMISSION PLANETARY CHIP DETECTOR. COMPLIED WITH SERVICEABILITY CHECK OF TRANSMISSION. Aug 27, 2007 · N430CH · Bell 430SDR CA070822006Transmission · making metal(CAN) SHORTLY AFTER TAKEOFF THE PILOT RECEIVED A CHIP LIGHT ON THE TRANSMISSION. LANDED THE AIRCRAFT. METAL WAS DISCOVERED ON THE SENSOR. THE AIRCRAFT WAS REMOVED FROM SERVICE AND THE TRANSMISSION WAS REPLACED WITH A SERVICEABLE UNIT. AIRCRAFT RETURNED TO SEAug 20, 2007 · Bell 206L1SDR CA071029004Housing · cracked(CAN) OIL FOUND ON TRANSMISSION DECK AFTER BRIEF DAILY INSPECTION, OIL LEAK FOUND FROM THE BOTTOM OF THE TRANSMISSION. UPON FURTHER INVESTIGATION TRANSMISSION REMOVED AND BOTTOM CASING FOUND TO BE CRACKED AT LOWER MAST SUPPORT BRG. (TC NR 20071029004)Aug 9, 2007 · Bell 206LSDR HEER117189Oil Jet · mismanufacturedMAIN GEARBOX REMOVED DUE TO METAL IN OIL AND DURING THE DETAIL INSPECTION FOUND THE OIL FEED HOLE OF THE LT INPUT OIL JET MISDRILLED. THIS MAY HAVE CONTRIBUTED TO THE LT INPUT PINION AND BEVEL GEARS UNACCEPTABLE TOOTH PATTERN WHICH MADE IT NECESSARY TO REPLACAug 8, 2007 · N764P · Skrsky S76ASDR HEEA117030Bearing · failedMGB CHIP PLUGS INDICATED A METAL IN OIL CONDITION. THE MGB WAS REMOVED AND SENT TO COMPONENT OVERHAUL SHOP TO DETERMINE CAUSE OF METAL. OHS COMPLETELY DISASSEMBLED THE MGB AND DETERMINED THE BEARING CUP IN THE LEFT HAND BEVEL SPUR GEAR ASSY WAS THE PRIMARY Aug 8, 2007 · N764P · Skrsky S76ASDR CA070719008Tube · cracked(CAN) OIL LINE CRACKED IN BEND JUST FWD TO FLARED FITTING. SUSPECT FATIGUE FROM IMPROPER TIGHTENING AT SOME POINT THROUGHOUT THE LIFE OF THE LINE. SUSPECT THIS TUBE WAS ORIGINAL EQUIPMENT. UNABLE TO DETECT LEAK ON GROUNG RUN LEAK CHECK AS THE MAINROTOR TRANSMIJul 19, 2007 · Bell 206L1SDR CA070807006Pin · worn(CAN) ON MAIN ROTOR GEARBOX REMOVAL SMALL PIN P/N 332A38-1015-21 FOUND INSTALLED IN LIEU OF LARGE PIN P/N 332A38-1019-21 IN LOWER POSITION OF FORWARD SUSPENSION BAR. RESULTANT, RADIAL PLAY 6 MM APPROXIMATELY. MFG CONTACTED TO DETERMINE FURTHER ACTION. RECORJul 14, 2007 · Snias AS332CSDR H3V2007F00000Pin · missingON JULY 8, 2007, HLH EXPERIENCED A HARD GROUND ROLLOVER OF AC. INITIAL INSPECTION OF THE WRECKAGE REVEALED A SERVO PIN, PN 6465-20201-101, FROM THE LT LATERAL SERVO, PN S1565-20421-042, WAS MISSING FROM THE TRANSMISSION LUG CAUSING THE SERVO TO REMOVE ITSELF Jul 8, 2007 · N44094 · Skrsky CH54ASDR EGI2007F00000Transmission · making metalDURING LOCAL TRAINING TRANSMISSION CHIP LIGHT CAME ON. AC WAS LANDED WITHOUT FURTHER INCIDENT. INVESTIGATION REVEALED NONFERROUS METAL FLAKES ON THE DEBRIS MONITOR. THE OIL WAS DRAINED THROUGH A STRAINER AND NO METAL WAS FOUND IN STRAINER. THE EXTERNAL FILJul 7, 2007 · N416EV · Bell 412EPSDR 2007FA0000557Gearbox · unknownMGB CHIP LIGHT CAME ON IN FLIGHT. INSPECTED CHIP PLUGS IAW AEC MWC AND SPM. NO FURTHER ACTION REQUIRED.Jun 28, 2007 · N808CP · Snias AS350B3SDR 2007FA0000556Gearbox · unknownMGB CHIP LIGHT CAME ON IN FLIGHT. INSPECTED CHIP PLUGS IAW AEC MWC AND SPM. NO FURTHER ACTION REQUIRED.Jun 28, 2007 · N808CP · Snias AS350B3SDR FAA070628001Gearbox · making metalMGB CHIP LIGHT CAME ON IN FLIGHT. REMOVED CHIP PLUGS FROM THE MGB AND THE MAST FOUND PARTICALS ON THE MGB PLUG LESS THAN LIMITS CALLED OUT IN AEC AS350B3 SPM 20.08.01.601 NOTHING ON THE MAST PLUG.PERFORMED 10 MIN. HOVER AND RECHECKED CHIP PLUGS AS PER AEC AS35Jun 28, 2007 · N808CP · Snias AS350B3SDR AS350B3Gearbox · warning lightMGB CHIP LIGHT CAME ON IN FLIGHT. REMOVED CHIP PLUGS FROM THE MGB AND THE MAST FOUND PARTICLES ON THE MGB PLUG LESS THAN LIMITS CALLED OUT IN AEC AS350B3 SPM 20.08.01.601 NOTHING ON THE MAST PLUG. PERFORMED 10 MIN. HOVER AND RECHECKED CHIP PLUGS IAW AEC AS350Jun 28, 2007 · N808CP · Snias AS350B3SDR CA070608010Shaft · damaged(CAN) S 76 MAIN GEARBOX REMOVED FOR GENERATING METAL. TSN 1556.5 THE METAL HAS BEEN SENT OUT FOR ANALYSIS TO ENSURE THAT IT IS THE TYPE CONSISTANT WITH THE DAMAGED PARTS. WE WILL ATTACH THE REPORT WHEN RECEIVED. (TC NR 20070608010)Jun 8, 2007SDR CA070604001Gearbox · seized(CAN) ENGINE CHIP ILLUMINATED, APPROX 3-4 SECONDS LATER ENGINE FAILED. (TC NR 20070604001)Jun 3, 2007 · Bell 407SDR BAQA200700016Gearbox · making metalDURING TAKEOFF, MAIN TRANSMISSION CHIP ILLUMINATED. CYCLED CHIP BURNER ONCE WITH NO SUCCESS. MECHANIC CALLLED. MECHANIC REMOVED AND INSPECTED MAIN GEARBOX AND COUPLING GEARBOX CHIP DETECTORS AND FOUND SMALL FLAKES ON BOTH UPPER AND LOWER CHIP PLUGS. ALL CHIPSMay 30, 2007 · N109UP · Agusta A109ESDR 07N101VU01Transmission · warning lightDURING CRUISE FLIGHT ENROUTE TO A LOCAL HOSPITAL FOR A PATIENT PICK UP, THE MAIN TRANSMISSION CHIP LIGHT ILLUMINATED. PERFORMED THE EMERGENCY PROCEDURE IAW THE AIRCRAFT CHECK LIST AND LANDED AT THE NEAREST AIRPORT WITHOUT INCIDENT. CREW WAS TRANSPORTED TO THE May 23, 2007 · N101VU · Bolkms BK117C2SDR FJ7A115620Gasket · crackedFIBERGLASS GASKET INSTALLED ON BOTH SIDES OF RING GEAR CRACKED AND PUSHED OUT CAUSING AN OIL LEAK.May 17, 2007 · N174AM · Urocop EC130B4SDR 0511070132Bearing Cage · failedTHE -CHIP LIGHT- WARNING WAS ILLUMINATED ON THE CAD. FOUND BROKEN BEARING CAGE MATERIAL LAYING IN THE BASE OF THE MAIN GEAR BOX. MATERIAL APPEARED TO COME FROM THE OIL COOLER BLOWER QUILL BEARING.May 11, 2007 · N533ME · Urocop EC135T1SDR CA070502006Case · cracked(CAN) ON INVESTIGATING AN OIL LEAKAGE, A CRACK WAS FOUND ON THE TRANSMISSION LOWER CASE (SIMILAR LOCATION AS SDR 20070216006) (TC NR 20070502006)Apr 26, 2007 · Bell 427SDR BAQA20070010Oil System · defectiveMAIN GEAR BOX OIL PUMP FAILED AD03-21-09-R1, DARK PURPLE COLORED OIL IN SIGHT GLASS. REMOVED AND REPLACED MAIN GEAR BOX CONTAINING OIL PUMP, COMBINER GEAR BOX, EPICYCLIC, AND ROTOR SHAFT ASSEMBLY IAW EMERGENCY ALERT SB 05.00.40 REV 2 DATED DECEMBER 20,2006Mar 23, 2007 · N5797X · Aerosp AS355F1SDR CA070411003Drive Gear · damaged(CAN) DURING THE INITIAL START UP OF THE DAY, AT APPROX 10 PERCENT ROTOR RPM, AN ABNORMAL NOISE WAS HEARD COMING FROM THE POWER TRAIN AND A TRANSMISSION CHIP WARNING LIGHT INDICATION. THE START WAS THEN ABORTED. THE ATTENDING AME INSPECTED THE TRANSMISSION SYSMar 17, 2007 · Kaman K1200SDR BAQA20070007Line · cutDURING POST FLIGHT WALK AROUND INSPECTION FOUND MAJORITY OF TAILBOOM OF AIRCRAFT COVERED IN BLACK OIL. REPAIRED CUT OIL LINE.Mar 8, 2007 · N942MS · Aerosp AS355F2SDR CA070216006Gearbox · cracked(CAN) FOUND A CRACK IN MAIN ROTOR TRANSMISSION, ON THE LT SIDE INPUT SHAFT. OIL STARTED TO SIP OUT OF THE TRANSMISSION. (TC NR 20070216006)Feb 7, 2007 · Bell 427SDR AC2A113940Transmission · making metalTRANSMISSION CHIP LIGHT. CALLED MECHANIC OUT TO AIRCRAFT TO CHECK AND VERIFY TRANSMISSION CHIP PLUG CONTAMINATION. MECHANIC FOUND THIN HAIRLIKE SLIVER OF METAL APPROX. .2500 INCH LONG ACROSS CONTACTS OF PLUG. CLEANED OF CHIP DETECTOR AND REINSTALLED. NO FURTHJan 27, 2007 · N427CU · Bell 427SDR CA070108004Case Half · worn(CAN) HALF SHELLS WERE WORN OUT DUE TO MOVEMENT OF THE SUN GEAR, WEARING S STEP INTO THE SHELLS. THERE IS NO PUBLISHED LIMITS ON THE SHELLS AND WE HAVE ASKED ECL FOR THIS INFORMATION. THERE IS NORMAL WEAR IN THIS AREA, THIS WAS A BIT EXCESSIVE WITH SLIVERS OF Dec 21, 2006 · Snias AS350B2SDR CA070115006Gearbox · malfunctioned(CAN) MAIN GEARBOX HAD SEVERAL OCCURENCES OF OIL PRESSURE DROPPING TO THE PRECAUTIONARY RANGE IN OPERATION. (TC NR 20070115006)Dec 14, 2006 · Skrsky S92ASDR BAQA200600010Gearbox · making metalMAIN GEARBOX CHIP LIGHT ILLUMINATED ON GROUND RUN UP DRAINED AND FLUSHED GEARBOX PERFORMED REQUIRED PENALTY RUN. CHIP LIGHT ILLUMINATED AGAIN. REMOVED AND REPLACED MAIN GEARBOX ASSEMBLY.Nov 29, 2006 · N942MS · Aerosp AS355F2SDR HEEA113076Transmission · making metalMETAL, THE CHIP LIGHT WAS CAUSED BY SLIVER OF METAL CREATED WHEN MFG INSTALLED BEARING 406-040-037-103 INTO THE LOWER MAST HOUSING 407-040-054-101. REPLACED TRANSMISSION. REQUESTS FOR WARRANTY CREDIT FOR PARTS AND LABOR DUE TO METAL SLIVER BEING CREATED DURNov 25, 2006 · N433PH · Bell 407SDR CA061124010Case · cracked(CAN) CRACKING AT INPUT QUILL BOSS OF MAIN ROTOR TRANSMISSION. (TC NR 20061124010)Nov 20, 2006 · Bell 205A1SDR HEEA111931Seal · unknownDURING FLIGHT TRANSMISSION OIL PRESSURE DROPPED TO ZERO. TRANSMISSION OIL PRESSURE CAUTION LIGHT CAME ON, TEMP ROSE TO 95 DEGREES C, LANDED ASAP- MP175. REPLACED FWU SEALS, AFT SEAL DETERMINED TO BE TRANSFERRING OIL TO ENGINE.Nov 2, 2006 · N41791 · Bell 206L3
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