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 ERAA093702Transmission · making metalTRANSMISSION MAKING METAL. LOCK MISSING FROM BEARING RETENTION NUT ON ACCY AND T/R DRIVE QUILL. CLIP WAS THE CAUSE OF METAL. PIECES OF FAME SPRAY FROM PREVIOUS CASE REPAIR ALSO IN OIL FILTER BUT WAS NOT CAUSE FOR CHIP LIGHT. UPPER SUN GEAR AND SPIDER GEAR Jan 13, 2004 · Bell 412SDR KBM2004F00056Bearing · wornREMOVED MGB CROSSBEAM SUPPORT BAR DUE TO 2 EA. LAMINATED BEARINGS BEING WORN. REMOVED AND REPLACED.Jan 5, 2004 · N313LV · Snias AS350B2SDR KBM2004F00055Bearing · wornREMOVED MGB CROSSBEAM SUPPORT BAR DUE TO 2 EA. LAMINATED BEARINGS ARE WORN OUT. REMOVED AND REPLACED.Jan 5, 2004 · N313LV · Snias AS350B2SDR BAQA091880Mount · dischargedMAIN ROTOR MOUNT DEPRESSURIZED. PART REPLACED WITH SERVICABLE UNIT. 01/09/2004Dec 28, 2003 · N601FH · Urocop EC135P1SDR 2004FA0000067Housing · crackedCRACK-LIKE INDICATION DETECTED AT FLUID HOLE AREA. FP INSPECTION USED.Dec 23, 2003 · N8548F · Bell 47G3B1SDR ERAA094067Blower · wornFAN RUBBING, WORN BEARINGS. SLIGHT FREE FLOAT OF BEARINGS OBSERVED, SIGNS OF RUBBING INDICATED IN A 1INCH PORTION OF OUTER HOUSING. PULLEY TO BE VERIFIED FOR ALIGNMENT UPON INSTALLATION ON AIRCRAFT. BEARINGS REPLACED WITH NEW. L GAP ADDRESSED WITH APPROPRDec 22, 2003 · N563EH · Skrsky S61NSDR BAQA091747Mount · collapsedARIS MOUNT COLLAPSED. PART REPLACED WITH SERVICABLE UNIT. 01/06/2004Dec 12, 2003 · N577LF · Urocop EC135P1SDR BAQA091477Bearing · wornBEARINGS AND BUSHINGS WORN. REPLACED WITH SERVICEABLE UNIT.Dec 11, 2003 · N135ME · Urocop EC135P1SDR ALGA091409Retainer · defectiveFOUND BEARING RETAINER RING SEPARATING FROM BEARING. RETURNED TO VENDOR FOR WARRANTY CREDIT.Dec 9, 2003 · Clark 1000CLARKSDR CA031208008Bearing · mismanufactured(CAN) BRG IS ONE OF FOUR BABBITT BRS LOCATED IN INPUT HOUSING AND COVER OF MGB. BRG IN QUESTION IS LOCATED IN THE INPUT COVER IN THE NR 1 POSITION. THIS GB WAS BEING TEST RUN BY MFG AC, TEN MINUTES IN TO RUN TEST STAND SHUT DOWN BECAUSE OF AN OVERTEMP ON SUBJDec 8, 2003 · Skrsky S61NMSDR BAQA091571Bearing · wornBEARINGS AND BUSHINGS WORN. REPLACED WITH SERVICEABLE UNIT.Dec 8, 2003 · N135ME · Urocop EC135P1SDR ERAA093692Bevel Gear · deterioratedTRANSMISSION MAKING METAL. LT INPUT PINION AND BEVEL GEAR BREAKING DOWN, LT INPUT SEAL LEAKING. REMOVED AND SCRAPPED LT PINION AND BEVEL GEAR. INSTALLED SERVICEABLE LT INPUT PINION AND BEVEL GEAR, CLEANED AND INSPECTED ALL CENTER CASE AND LOWER CASE PARTS. Dec 4, 2003 · N298EH · Bolkms BO105SSDR JJWA0053223Lockwasher · defectiveTRANSMISSION CHIP LIGHT CAME ON ON LANDING. FOUND TANG FROM ACCESSORY DRIVE LOCK WASHER ON CHIP DETECTOR. VERIFIED ON TRANSMISSION DISASSEMBLY. ALL TRANSMISSION BEARINGS REPLACED 1/9/1998 . OTHER WASHER TANG NOT IN NUT SLOT AND BENT SUGGESTING IMPROPER INSDec 3, 2003 · N25PM · Bell 206BSDR AUS20031236Gearbox · contaminated(AUS) FOLLOWING STRANGE NOISES ON RUNDOWN THE MAIN ROTOR GEARBOX WAS INSPECTED. THE MAIN ROTOR GEARBOX AND CHIP DETECTOR WERE FOUND TO BE CONTAMINATED WITH METAL. CHIP DETECTOR DID NOT ILLUMINATE CHIP LIGHT BUT WAS TESTED SERVICEABLE.Dec 2, 2003 · Robsin R22BETASDR ALGA091288Pinion Gear · spalledFOUND SPALLING ON PINION GEAR TEETH. SENT PART TO VENDOR FOR WARRANTY CREDIT.Nov 26, 2003 · N518AL · Skrsky S76ASDR CA031222004Clutch · unserviceable(CAN) UNIT RECEIVED TO REINSPECT AFTER CUSTOMER REPORTED OIL LEAK FROM CLUTCH, (NEAR TO DRY) TO FACILITY FAA REPAIR STATION (THEY O/H THIS UNIT 88 HRS AGO). THIS FACILITY REPORTED TO THE CUSTOMER THAT THEY CHANGED THE SEAL, AND THAT WAS ALL THAT WAS NEEDED. Nov 12, 2003 · Hughes 369ESDR KBM2003F00081Drag Pin · looseDURING POST FLIGHT, FOUND MAIN GEARBOX DRAG PIN BEARING SHOOK LOOSE. REMOVED AND REPLACED.Nov 8, 2003 · N73DP · Bell 206BSDR RX8R2003002Thermoswitch · inoperativeWHILE PERFORMING THE 6 YR. 2000 HR. INSPECTION TO TEST THE MAIN GEARBOX OIL TEMPERATURE PROBE, IT WAS DETERMINED THAT THE PROBE WAS INOPERATIVE AND HAD TO BE REPLACED. WE PERFORMED THE SAME TEST ON ANOTHER AS350B2 AIRCRAFT (N4043L, SN 3015) ON OCT. 23, 2003 ANNov 6, 2003 · N4048L · Snias AS350B2SDR KBM2003F00077Bar · wornMGB REAR BAR, FOUND EXCESSIVE PLAY. REMOVED AND REPLACED WITH NEW.(K)Oct 21, 2003 · N115SH · Snias AS350B2SDR ERAA093706Quill Assy · wornQUILL ASSY HAS VERTICAL PLAY IN SHAFT. SPACER SET DAMAGED FROM APPARENT BEARING ROTATION IN LINER OF SLEEVE. DISASSEMBLED, CLEANED AND VISUALLY INSPECTED ALL PARTS. CHECKED SHIMMING AND REASSEMBLED, TORQUED AND SAFTIED IAW BHT 412-CR, 0 CHAPTER 63 INSTALLINGOct 1, 2003 · Bell 412SDR MDR03030Plate · crackedDURING THE MAGNETIC PARTICLE INSPECTION OF THE 2ND STAGE PLANETARY PLATE, A CRACK WAS DETECTED. THE CRACK IS LOCATED IN THE .125 INCH R. FROM THERE, IT TRAVELS TOWARDS THE SPLINE AT A 45 DEGREE ANGLE. THEN IT TRAVELS DOWN THE DRIVE SIDE TOOTH FILLET OF THESep 24, 2003 · N178AC · Skrsky S64FSDR AUS20030985Freewheel Unit · loose(AUS) FREEWHEEL UNIT LOOSE.Sep 19, 2003 · Hughes 269ASDR CA030918010Bearing · cracked(CAN) TAIL ROTOR O/P PINION ROLLER BEARING CRACKED AND SPALLED. SPUN ON T/R O/P PINION ROLLER BEARING JOURNAL. JOURNAL NOW UNDERSIZESep 18, 2003 · Hughes 369DSDR ALGA089171Spider · crackedTRANSMISSION DISASSEMBLED FOR METAL IN OIL, FOUND LOWER PLANETARY SPIDER CRACKED.REMOVED AND REPLACED LOWER PLANETARY SPIDER.Sep 12, 2003 · Bell 412SDR CA040806008Planetary Gear · spalled(CAN) EPI CYCLIC WAS MAKING METAL. SOURCE WAS THE PLANET GEAR INNER RACE WAS SPALLING AND MAKING METAL.Aug 30, 2003 · Aerosp AS355F1SDR 2003FA0000995Shaft · wornOPERATOR NOTICED CLUNK NOISE WHILE ROTATING DRIVE SYSTEM ON PREFLIGHT. NOISE WAS FROM THE M/R TRANS. DISASSEMBLY OF BOLT DRIVE SYSTEM REVEALED A LOOSE UPPER PULLEY STACK UP DUG TO LOOSE AFT PINION NUT WITH ALL THE ASSOCIATING FRETTING DAMAGE OF UPER PULLEY HAug 26, 2003 · N277DT · Scwzer 269DSDR ALGA088803Pinion Gear · corrodedFOUND CORROSION AND RUST PITTING AT ROOT OF GEAR TEETH. REMOVED AND REPLACED. REQUEST WARRANTY CREDIT DUE TO LOW TIME.Aug 20, 2003 · N31211 · Skrsky S76ASDR 2003FA0000918Hose · crackedAIRCRAFT WAS ENROUTE FOR REDEPLOYMENT OF FIREFIGHTING CREWS. AIRCRAFT DEVELOPED A LARGE OIL LEAK AND MADE A PRECAUTIONARY LANDING. AIRCRAFT SUSTAINED NO DAMAGE AND OCCUPANTS WERE NOT INJURED. INVESTIGATION FOUND A MAIN TRANSMISSION OIL LINE HAD RUPTURED AT Aug 19, 2003 · N265F · Skrsky S61NSDR ERAA094064Drive Shaft · damagedDRIVE SHAFT DAMAGED ; SLIPPAGE MARKS IAW MBB MM CHAPTER 11 SECTION 11-55 B DRIVESHAFT WAS INSPECTED, DISASSEMBLED, STRIPPED, REPAIRED AND RE MPI. RE COATED AND REBUILT USING NEW HARDWARE, BALANCED, INSPECTED.Aug 15, 2003 · N149EH · Bolkms BO105SSDR CA040223004Drive Shaft · broken(CAN) AFTER FIRST START OF THE DAY THE TRANSMISSION OIL PRESSURE LIGHT NEVER WENT OFF. ENGINE WAS SHUT DOWN TO INVESTIGATE THE SOURCE OF THE PROBLEM. IT WAS FOUND THAT THE NEWLY OVERHAUL OIL PUMP WAS NOT DELIVERING ANY PRESSURE. ON REMOVAL OF MAIN TRANSMISSAug 13, 2003 · Snias AS350BSDR CA030811001Freewheel Unit · failed(CAN) THIS TRANSMISSION RECEIVED FROM AN OPERATOR WITH PARTIAL DISASSEMBLY. LT FREEWHEEL CLUTCH SHATTERED. OUTER CAGE BROKEN IN ONE PLACE. INNER CAGE BROKEN IN TWO PLACES.ENERGIZING RIBBON BROKEN IN FOUR PLACES. FOUR SPRAGS DISLODGED FROM CLUTCH ASSY.Aug 8, 2003 · Bolkms BO105CBSSDR 2003F00583Filter · damagedPILOT REPORTED THAT THE INDICATOR LIGHT FOR THE MAIN GEAR BOX PRESSURE. PILOT REPORTED THAT HE FOUND A LANDING SPOT AND LANDED, BUT BEFORE HE LANDED THE LIGHT WENT BACK OUT. LOOKED THROUGH THE AMERICAN EUROCOPTER MM FOR THIS SITUATION AND FOUND NOTHING. CALAug 6, 2003 · N6052F · Snias AS350B2SDR HEEA088545Seal · leakingSEAL LEAKING. IN REPAIR.Aug 6, 2003 · N30KH · Bell 206L3SDR HEEA088636Outer Deflection · splitMAIN ROTOR GEARBOX OUTER DEFLECTION SPLIT IN THE BEND RADIUS. TO BE SENT TO VENDOR FOR CREDIT.Aug 4, 2003 · Bolkms BO105SSDR BAQA088269Mount · leakingMAIN ROTOR GEARBOX MOUNT LEAKING. REPLACED WITH SERVICEABLE UNIT.Aug 1, 2003 · N601FH · Urocop EC135P1SDR HEEA088531Bearing · wornMAIN ROTOR HEAD LINK ASSY HAS WORN BEARINGS. IN SHOP REPAIR.Jul 30, 2003 · N6603X · Bell 206L3SDR HEEA088528Bearing · wornLINK ASSY WORN BEARINGS. IN SHOP REPAIR.Jul 30, 2003 · N6603X · Bell 206L3SDR CA030731020Hose · ruptured(CAN) TRANSMISSION OIL HOSE SWOLLEN AND BLOWN APPROX.6 INCHES FROM FITTING.PILOT HAD LOW OIL PRESSURE WARNING LIGHTCOME ON AND CARRIED OUT PRECAUTIONARY LANDING TO INVESTIGATE. HOSE IS SUBJECT TO TENSION AND TORSION AS TRANSMISSION IS MOUNTED WITH LORD RUBBER Jul 29, 2003 · Bell 212SDR ALGA088196Bearing · failedTRANSMISSION DISASSEMBLED FOR 4500HR. OVERHAUL ,FOUND BEARING BREAKING DOWN DURING NORMAL INSPECTION PROCEDURE.Jul 24, 2003 · N168H · Bell 206B3SDR HEEA088532Pump · leakingMAIN ROTOR GEARBOX OIL PUMP LEAKING. IN SHOP REPAIR.Jul 22, 2003 · N2275Y · Bell 206B3SDR HEEA088486Pump · leakingMAIN ROTOR GEARBOX OIL PUMP LEAKING. REPAIRED.Jul 22, 2003 · N2275Y · Bell 206B3SDR ALGA088163Gear · spalledHEAVY SPALLING ON GEAR TEETH, DUE TO IMPROPER MESHING OF GEAR TEETH. REMOVED AND REPLACED.Jul 21, 2003 · N507AL · Bell 407SDR ALGA088162Pinion Gear · spalledHEAVY SPALLING ON GEAR TEETH,DUE TO IMPROPER MESHING OF GEAR TEETH.Jul 21, 2003 · N507AL · Bell 407SDR ALGA088105Gear · spalledREMOVED GEAR FOR EXCESSIVE SPALLING ON GEAR TEETH. REMOVED FOR WARRANTY CREDIT.Jul 15, 2003 · N587AL · Bell 407SDR ALGA088104Gear · spalledREMOVED GEAR FOR EXCESSIVE SPALLING ON GEAR TEETH.Jul 15, 2003 · N587AL · Bell 407SDR HEEA088472Pump · damagedTACH GEN SPLINED SHAFT STUCK IN OIL PUMP.Jul 14, 2003 · N7077F · Bell 206L4SDR ALGA088095Gear · inoperativeT/M GEAR REMOVED FOR INSPECTION IAW SBT-076 REMOVED AND REPLACED T/M GEAR.Jul 14, 2003 · N705AL · Skrsky S76ASDR CA030730007Bearing Race · spalled(CAN) LT INPUT ROLLER BEARING OUTER RACE SPALLING/PEELING. METAL CONTAMINATION CAUSED EXSTENSIVE DAMAGE TO OTHER INTERNAL TRANSMISSION BEARINGS.Jul 8, 2003 · Bolkms BO105SSDR HEEA088089Clutch Plate · overheatedCLUTCH WON'T HOLD AND OVERHEATED. REPLACED WITH SERVICEABLE PART.Jul 8, 2003 · N732AE · Aerosp AS355*SDR ALGA087937Bearing · spalledMAIN GEARBOX REMOVED FOR METAL IN OIL, FOUND BEARING BREAKING DOWN.Jul 8, 2003 · N741SW · Skrsky S76A
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