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.
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
Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
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 SPACERSDR 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)SDR 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.SDR CA071115007Bearing · spalled(CAN) MGB REMOVED DUE TO MAKING METAL, THE ABOVE BEARING WAS FOUND TO BE SPALLED (TC NR 20071115007)SDR 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. THSDR 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)SDR 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 SDR 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 SDR CA071114007Chip Detector · shorted(CAN) MAIN GEARBOX MAGNETIC CHIP PLUG SHORTED INTERNALLY. (TC NR 20071114007)SDR Y5CR200700001Bevel Gear · brokenPART OF TOOTH ON INPUT BEVEL GEAR BROKEN OFF.SDR 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 CARSDR 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 REPLASDR 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 MSDR 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 EXSDR 2007FA0000812Quill Assy · wornQUILL INTERNAL SPLINES WORN AND DAMAGED IN QUILL TUBE CONTACT AREASDR 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.SDR 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 GESDR 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 LISDR 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.SDR 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. SDR 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 SESDR 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)SDR 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 REPLACSDR 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 SDR 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 TRANSMISDR 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. RECORSDR 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 SDR 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 FILSDR 2007FA0000557Gearbox · unknownMGB CHIP LIGHT CAME ON IN FLIGHT. INSPECTED CHIP PLUGS IAW AEC MWC AND SPM. NO FURTHER ACTION REQUIRED.SDR 2007FA0000556Gearbox · unknownMGB CHIP LIGHT CAME ON IN FLIGHT. INSPECTED CHIP PLUGS IAW AEC MWC AND SPM. NO FURTHER ACTION REQUIRED.SDR 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 AS35SDR 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 AS350SDR 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)SDR CA070604001Gearbox · seized(CAN) ENGINE CHIP ILLUMINATED, APPROX 3-4 SECONDS LATER ENGINE FAILED. (TC NR 20070604001)SDR 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 CHIPSSDR 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 SDR FJ7A115620Gasket · crackedFIBERGLASS GASKET INSTALLED ON BOTH SIDES OF RING GEAR CRACKED AND PUSHED OUT CAUSING AN OIL LEAK.SDR 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.SDR 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)SDR 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 20,2006SDR 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 SYSSDR BAQA20070007Line · cutDURING POST FLIGHT WALK AROUND INSPECTION FOUND MAJORITY OF TAILBOOM OF AIRCRAFT COVERED IN BLACK OIL. REPAIRED CUT OIL LINE.SDR 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)SDR 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 FURTHSDR 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 SDR CA070115006Gearbox · malfunctioned(CAN) MAIN GEARBOX HAD SEVERAL OCCURENCES OF OIL PRESSURE DROPPING TO THE PRECAUTIONARY RANGE IN OPERATION. (TC NR 20070115006)SDR 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.SDR 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 DURSDR CA061124010Case · cracked(CAN) CRACKING AT INPUT QUILL BOSS OF MAIN ROTOR TRANSMISSION. (TC NR 20061124010)SDR 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.
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