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 20000607SH013Transmitter · fluctuatesPRESSURE TRANSMITTER UNIT CAUSES PRESSURE GAUGE TO FLUCTUATE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X)SDR GJQR0000264Shaft · frettedFRETTING FROM GEAR IN CRACK AREA. (X)SDR GJQR0000266Seal · wornEXCESSIVE WEAR ON OIL PUMP DRIVE SHAFT. (X)SDR 2000ZZZX786Transmission · making metalTRANSMISSION MAKING METAL. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.SDR 20000502SH013Pinion Gear · galledUPON VISUAL INSPECTION, INSPECTED CHIP DETECTOR PLUGS AND FOUND METAL ON PLUGS. SPALLING AND GALLING IN PINION GEAR TEETH, POSSIBLE DUE TO IMPROPER MESHING OF GEAR TEETH. (X)SDR 20000502SH012Gear · galledUPON VISUAL INSPECTION, INSPECTED CHIP DETECTOR PLUGS AND FOUND METAL ON PLUGS. SPALLING AND GALLING ON TM GEAR TEETH, POSSIBLE DUE TO IMPROPER MESHING OF GEAR TEETH. (X)SDR 20000407SH019Housing · contaminatedPOST-FLIGHT DAILY INSPECTION REVEALED HYDRAULIC RESERVOIR FLUID LEVEL LOW AT SIGHT GLASS (.5). FURTHER INSP SUPPORT NO OBVIOUS EXTERNAL LEAKS ABOUT THE HYD SYS. NEXT POST-FLIGHT DAILY INSP REVEALED SAME SCENARIO WITH HYD SYS, SIGHT GLASS LOW, WITH NO OBVIOUSSDR HEEA065870Transmission · wornCOATING ON MAST WORN. P/N 704A33-651-158, S/N NR-1176; P/N 350A37-1290-03, S/N M4661 INCLUDED. (BUILT-UP UPPER TRANS. S/PLATE).SDR 2000ZZZX800Transmission · making metalUPON LANDING, PILOT REPORTED TRANSMISSION WARNING LIGHT ILLUMINATED. INSPECTED TRANSMISSION CHIP PLUG AND FOUND FERROUS AND NON-FERROUS MATERIAL. AC GROUNDED AND REPLACEMENT TRANSMISSION ORDERED. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.SDR GJQA065663Bevel Gear · crackedTRANSMISSION LOWER CHIP LIGHT ILLUMINATED IN-FLIGHT. AFTER LANDING, INSPECTION REVEALED FAIRLY LARGE FERROUS CHIP THAT APPEARED LIKE PIECE OF GEAR TOOTH. TEAR DOWN INSPECTION REVEALED INPUT SPIRAL BEVEL GEAR CRACKED 360 DEGREES THROUGH THE RING. THE CRACK PATSDR 20000516SH022Bevel Gear · crackedTRANSMISSION LOWER CHIP LIGHT ILLUMINATED IN-FLIGHT. AFTER LANDING, INSPECTION FOUND FAIRLY LARGE FERROUS CHIP THAT APPEARED LIKE PIECE OF GEAR TOOTH. TEAR-DOWN INSPECTION REVEALED INPUT SPIRAL BEVEL GEAR CRACKED 360 DEGREES THROUGH THE RING. THE CRACK PATSDR AGQA065688Gear · flakingGEAR IS FLAKING.SDR AGQA065687Gear · flakingGEAR IS FLAKING.SDR AGQA065686Gear · flakingGEAR IS FLAKING.SDR AGQA065685Sun Gear · flakingSUN GEAR IS FLAKING.SDR AGQA065684Gear · flakingGEAR IS FLAKING.SDR AU000085Gearbox · corroded(AUS) MAIN ROTOR GEARBOX LEAKING OIL FROM THE AREA OF THE ROTOR BRAKE ATTACHMENT LUGS. INVESTIGATION FOUND CORROSION AROUND THE STAINLESS STEEL SLEEVE.SDR HEEA065995Switch · failedPRESSURE SWITCH FAILED.SDR HEEA065642Switch · stickingPRESSURE SWITCH STICKS IN OPEN POSITION.SDR HEEA065620Switch · wornPRESSURE SWITCH WORN.SDR 20000413SH035Seal · leakingSEAL LEAKING. REMOVED AND REPLACED. (X)SDR HEEA065586Housing · mismanufacturedHOUSING ASSY MISMANUFACTURED. FILTER AREA NOT FINISHED, FILTER ELEMENT AREA CANNOT BE INSTALLED.SDR 2000ZZZX372Shaft · shearedDURING ROUTINE MAINTENANCE, METAL WAS FOUND IN SCREEN AND FILTER AND SENT TO LYCOMING. ENGINE TAKEN OUT RIGHT AWAY, AND SHAFT P/N 21668 THAT HOLDS GEAR P/N 71652 HAD FLANGE SHEARED OFF AT BOLT AND STUD AND SPACER. CAUSED MAJOR DAMAGE TO ALL GEARS, CRANKCASE, SDR HEEA065449Seal · scratchedSCRATCHED ALONG LONG SEAL AREA.SDR HEEA065445Pump · wornSPLINES WORN ON OIL PUMP.SDR 20000406SH014Seal · leakingSEAL LEAKING. REMOVED AND REPLACED. (X)SDR ERAA065650Stand · mismarkedTRANSMISSION STAND ISSUED TO AIRCRAFT BUT COULD NOT BE INSTALLED DUE TO PART BEING IMPROPERLY MARKED FROM AEC. ORDERED P/N 105-10157, BUT PART WAS MARKED 105-10156.SDR HEEA065393Seal · corrodedCORROSION ON SEAL.SDR HEEA065374Roller Set · mismanufacturedMISMANUFACTURED. ROLLER NOT STAMPED ON TOP SIDE.SDR HEEA065372Input Quil · mismanufacturedMISMANUFACTURED. PLATING WORN THROUGH TO PARENT METAL AND CAN BE FELT WITH .020 INCH PROBE.SDR HEEA065285Transmission · making metalFOUND METAL IN OIL.SDR HEEA065147Transmission · making metalFOUND METAL IN TRANSMISSION.SDR 20000406SH051Transmission · failedMAIN TRANSMISSION FAILED. REMOVED AND REPLACED. (X)SDR ERAA065411Bevel Gear · making metalTRANSMISSION MAKING METAL. LEFT PINION AND BEVEL GEAR BREAKING DOWN, LEFT INT SHAFT TEETH PITTED, LEFT FREEWHEEL WORN BEYOND LIMITS.SDR HEED064634Pump · failedLOW OIL PRESSURE AND CHECK VALVE ALLOWS THE OIL TANK TO DRAIN BACK INTO THE GEARBOX AFTER SHUTDOWN . REPLACED PART.SDR HEEA064933Switch · failedPRESSURE SWITCH WILL NOT TURN ON LIGHT.SDR HEEA064927Transmitter · fluctuatingENGINE OIL PRESSURE FLUCTUATES.SDR HEEA064922Pump · strippedSPLINES TO ADAPTER SHAFT STRIPPED.SDR CA000110024Gear · failed(CAN) HELICAL GEARS SENT OUT FOR NICKEL-SULFAMATE REPAIR OF PILOT BORES I.A.W. SIKORSKY S61 OVERHAUL MANUAL. HOWEVER, IT WAS LATER DETERMINED THAT THE REQUIRED MPI CRACK CHECKS AFTER GRINDING WERE NOT CARRIED OUT BY THE COMPANY THAT DID THE REPAIR PROCESS.SDR CA000301008Bevel Gear · broken(CAN) MAIN GEAR BOX BEVEL GEAR HAS A BROKEN TOOTH. BEVEL GEAR SENT TO ENGINEERING FIRM FOR ANALYSIS AS TO DETERMINE THE CAUSE OF FAILURE. FRACTURE OCCURRED AT HEEL OF THE TOOTH AND FAILURE OCCURRED AS A RESULT OF A FATIGUE MODE OF PROGRESSIVE FAILURE.SDR CA991112004Bevel Gear · broken(CAN) DURING SERVICING REMOVAL OF COARSE SCREEN, ENGINEER NOTICED SEVERAL SMALL PIECES OF NON-FERROUS METAL WHICH WAS FOUND IN PART OF THE BEVEL GEAR TOOTH .SDR CA991112002Ring Gear · cracked(CAN) ELEVEN TEETH WERE FOUND CRACKED ON 1,500-HOUR INSPECTION.SDR HEEA064874Transmitter · malfunctionedTRANSMITTER HAD HIGH OIL PRESSURE INDICATION.SDR HEEA064851Pressure Switch · failedSWITCH WILL NOT TURN ON WITH NO PRESSURE.SDR HEEA064837Transmission · making metalTRANSMISSION MAKING METAL.SDR HEEA064812Transmission · making metalTRANSMISSION ASSY MAKING METAL.SDR CA991027043Drive Shaft · separated(CAN) DURING CLIMB AT 80 PERCENT TORQUE, NR 1 ENGINE LOST POWER AND ROTORCRAFT LANDED ON SINGLE ENGINE. POST-FLIGHT INVESTIGATION REVEALED THAT NR 1 DRIVESHAFT HAD SEPARATED FROM THE TRANSMISSION INPUT DUE TO TRANSMISSION INPUT GEAR SEIZING.SDR CA991028025Pinion Gear · making metal(CAN) MAIN TRANSMISSION PINION GEAR PEELING. PINION GEAR REPLACED.SDR 99ZZZX4332Seal · delaminatedDURING REMOVAL OF TURBINE SECTION, A PREVIOUSLY REPAIRED AREA AROUND THE TURBINE SEAL BOSS ON THE GEARBOX COVER HAD DELAMINATED. REPLACED GEARBOX.SDR HEEA064713Seal · crackedCRACKED SEAL.
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