JASC 6320

Service difficulty reports · 1,931

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 HAI00000076Indicator · defectiveDURING 1500 TRANSMISSION SUN GEAR INSPECTION COMPLETED TB206L-95-183 PER BULLETIN. REPLACED WITH NEW PART FROM BHTMay 28, 1996 · N108W · Bell 206LSDR HEEA967267Bearing · pittedEXCESSIVE PITTING ON ROLLERS AND OUTER RACE.May 22, 1996 · N1546K · Skrsky S76ASDR AU960689Bearing · failed(AUS) MAIN TRANSMISSION LOWER SUN GEAR BEARING CAGE DISINTEGRATED - BEARING OIL PRESSURE JETS WERE ALSO FOUND TO BE BLOCKED WITH A NON FERROUS METAL (METAL DID NOT ORIGINATE FROM THE TRANSMISSION)- TRANSMISSION HAD BEEN FITTED FOR APPROXIMATELY 80 HOURS -FURTMay 21, 1996 · Bell 47G3BSDR AU960822Bearing · failed(AUS) MAIN TRANSMISSION COOLING FAN DRIVE BEARING FAILED - METAL CONTAMINATION OF TRANSMISSION OIL SYSTEMMay 20, 1996 · Bell 47G3BSDR 96ZZZX3404Case Assy · mfg defectPLUGS AT CASE-TO-MAST MATING SURFACE DRIVEN UP BY BOLTS DURING INSTALLATION OF MAST CHIP DETECTOR. DEBRIS IN PAN. SUBMITTER STATED IT WAS DETERMINED TO BE MANUFACTURING DEFECT.May 20, 1996 · Bell 206BELLSDR HEEA967240Bolt · crackedAT NORMAL OVERHAUL FOUND MR GEAR BOX BOLT WITH CRACK INDICATIONS.May 15, 1996 · N6161A · Bell 206L3SDR HEEA967239Shaft · crackedAT NORMAL OVERHAUL FOUND CRACK INDICATIONS.May 15, 1996 · N6161A · Bell 206L3SDR HEEA967238Gear · crackedAT NORMAL OVERHAUL FOUND CRACK INDICATIONS.May 15, 1996 · N6161A · Bell 206L3SDR HEEA967216Seal Assy · crackedFOUND CRACK ACROSS CARBON SEAL. SENT TO MAGNETIC SEAL CORP. FOR INSPECTION AND REPAIR.May 9, 1996 · N6603X · Bell 206L3SDR HEEA967174Indicator · malfunctionPRESSURE READS HIGH AND TEMP NEEDLE STICKS. GLASS IS FOGGEDMay 8, 1996 · N10814 · Bell 206L1SDR HEEA967167Indicator · fluctuatesPRESSURE SIDE FLUCTUATES WHEN HOT.May 8, 1996 · N107X · Bell 412SDR 96ZZZX2937Transmission · making metalTRANSMISSION GENERATING CHIP LIGHTS EVERY FIVE MINUTES OF OPERATION. TOOTH OF RING GEAR HAD CHUNK MISSING 1.25 INCHES LONG BY .25 INCH DEEP. INSTALLED ZERO TIME OVERHAUL TRANSMISSION.May 2, 1996 · N8626S · Enstrm F28FSDR HEEA967082Case Assy · defective#7 OIL JET BORE IMPROPERLY MACHINED, OIL JET WILL NOT FIT. REMOVED FROM CUSTOMER AIRCRAFT N703H.Apr 29, 1996 · Bell 212SDR 96ZZZX2923Thermostat · faultyAIRCRAFT IN FORWARD FERRY FLIGHT ATTITUDE. OIL COOLER SYSTEM FUNCTIONING PROPERLY. OVERTEMP OF MGB INDICATION OBSERVED ON MASTER CAUTION PANEL. FLIGHT CREW SECURED SAFE LANDING LOCATION AND OBTAINED SAFE LANDING WITHOUT INCIDENT IN LESS THAN 1 MINUTE OF INIApr 20, 1996 · N163AC · Skrsky S64FSDR HEEA967063Cable · brokenCABLE BROKEN AT TRANSMISSION END.Apr 19, 1996 · N6100U · Snias AS350B2SDR HEEA967062Transmission · defectiveREPLACEMENT PART INFORMATION LISTED BELOW: 1 EACH, P/N 222-340-044-001, BEARING,S/N J0154, T.T. 2560:55, SPALLED 1 EACH, P/N 222-040-112-103, SUN GEAR, S/N A187, T.T. 2560:55, GEARTEETH BROKEN 1 EACH, P/N 222-040-079-002, CASE, S/NA268, T.T. 2560:55, CHIPPEDApr 19, 1996 · N230UN · Bell 230SDR HEEA967003Pin Spacer · brokeM/R GR BOX EXPANSION PIN SPACER BROKE.Apr 16, 1996 · N6095S · Snias AS350B2SDR 96ZZZX2590Bearing · scoredFOUND LOWER MAST ALIGNMENT BEARING BAD WHEN PERFORMING THE SUN GEAR INSPECTION. TRANSMISSION, S/N BMC 00687.Apr 16, 1996 · N721LL · Bell 206L3SDR 96ZZZX2596Transmission · leakingREMOVED MAIN ROTOR TRANSMISSION FOR LEAKY INPUT SEAL. THIS IS THE SECOND TIME IN 102.8 HOURS THIS HAS BEEN DONE. SUBMITTER STATED THIS IS NOT AN ISOLATED INCIDENT EITHER.Apr 12, 1996 · N5074R · Hughes 369DSDR HEEA966974Indicator · inopGR BOX INDICATOR NEEDLES INOPERATIVE.Apr 8, 1996 · N7128R · Bell 412SDR HEEA966939Upper Housing · wornBUSHING BORE WORN BEYOND 151.04 MIN.Apr 8, 1996 · N721MB · Bolkms BO105SSDR HEEA966938Lower Housing · liner looseSTEEL LINER ON RIGHT INPUT BORE LOOSE.Apr 8, 1996 · N721MB · Bolkms BO105SSDR 96ZZZX3581Switch · malfunctionGEARBOX OIL PRESSURE SWITCH INOPERATIVE. CAUSES LOW PRESSURE WARNING LIGHT AT FLIGHT IDLE. REPALCED WITH NEW UNIT, CORRECTED PROBLEM.Apr 1, 1996 · N203LF · Bolkms BO105LSA3SDR 96ZZZX3136Transducer · defectiveTRANSDUCER UNIT CAUSES PRESSURE GAUGE TO FLUCTUATE 4 PERCENT TO 8 PERCENT. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Mar 30, 1996 · N901CF · Doug MD900SDR 96ZZZX2301Bearing · making metalUPON FINDING METAL IN OIL SCREEN, TRANSMISSION WAS REMOVED AND DISASSEMBLED. LOWER SUN GEAR BEARING WAS FOUND TO BE MAKING METAL. SUBMITTER STATES THIS HAS BEEN THE SIXTH FAILURE IN TRANSMISSION.Mar 28, 1996 · N615BH · Bell 47G5ASDR 97ZZZX915Gasket · misfitNEW GASKET FROM MFG DOES NOT FIT PROPERLY. SUBMITTER STATED THESE PARTS WHEN RECEIVED FROM A.E.C. ARE TOO SMALL IN DIAMETER TO CORRECTLY FIT. AMER EUROCOPTER SAYS TO SOAK THE GASKET OR TO TEAR THE OUTSIDE PART OF THE BOLT HOLES TO MAKE IT FIT. AFTER TRYING Mar 22, 1996 · N6095U · Snias AS350B2SDR CA960328003Ring Gear · failed(CAN)MAIN GEARBOX CHIP LIGHT ALONG WITH AUDIBLE SOUND CHANGE FROM MGB AREA. FOLLOWING SHUTDOWN INSPECTION OF COURSE SCREEN SHOWED SOME FERROUS AND NON FERROUS PARTICLES. ON DISASSEMBLY IT WAS FOUND THAT THE RING GEAR HAD FAILED.Mar 7, 1996 · Skrsky S61NSDR 96ZZZX3580Switch · failedGEARBOX OIL PRESSURE SWITCH INOPERATIVE. LOW PRESSURE WARNING LIGHT WILL NOT COME ON AT SHUT-DOWN. REPLACED WTIH NEW UNIT, CORRECTED PROBLEM.Mar 7, 1996 · N203LF · Bolkms BO105LSA3SDR CA960311001Bolt · cracked(CAN)UPON REMOVING L/H MGB COWLING FOR ROUTINE MAINTENANCE, THE FORWARD MGB ATTACHMENT BOLT WAS NOTICED TO BE RAISED UP FROM FEET. UPON REMOVAL OF THE BOLT IT WAS FOUND CRACKED IN HALF. THE REMAINING HALF OF THE BOLT WAS REMOVED WITH A BOLT EXTRACTOR AND A THMar 3, 1996 · Skrsky S76ASDR CA960502021Bevel Reduction · excess play(CAN) RADIAL AND AXIAL PLAY OF INPUT QUILL. REPORTED VIBRATION DURING POWER REDUCTION. NUT ON QUILL DOES NOT APPEAR TO HAVE BACKED OFF BUT WASHER BEHIND NUT CAN BE MOVED FREELY.Mar 1, 1996 · Snias AS350BSDR 96ZZZX3155Transducer · defectivePRESSURE TRANSDUCER CAUSES PRESSURE GAUGE TO FLUCTUATE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Mar 1, 1996 · N901CF · Doug MD900SDR CA960320002Sungear · spalled(CAN) SCHEDULED 1500 HOUR SPECIAL INSPECTION ON SUNGEAR REVEALED SPALLING OF SPLINES. FURTHER INVESTIGATION REVEALED DAMAGE TO CORRESPONDING INPUT SPIRAL BEVEL GEARSHAFT SPLINES.Feb 29, 1996 · Bell 206L3SDR HEEA966753Switch · defectiveCAUSES MGBP LIGHT TO COME ON INTERMITTENTLY.Feb 28, 1996 · N6100U · Snias AS350B2SDR HEEA966733Bearing · failedBEARING BALLS AND RACER SPALLED CAUSING TRANSMISSION METAL IN OIL. REPLACED WITH SERVICEABLE BEARING.Feb 26, 1996 · N5007Q · Bell 206L1SDR ERAA96201Indicator · defectiveNO TEXTFeb 26, 1996 · N177EH · Bell 412SDR 96ZZZX1171Transmission · seals leakTRANSMISSION REMOVED TO REPLACE ALL OIL SEALS DUE TO LEAKING.Feb 20, 1996 · N4571V · Hughes 369DSDR 96ZZZX1165Transmission · making metalPILOT GOT A FLICKER ON M/R TRANSMISSION CHIP LIGHT, THEN IT STAYED OUT. PILOT CHECKED CHIP PLUG ON LANDING WITH THE LIGHT STILL OFF AND FOUND SEVERAL LARGE CHIPS ON BOTH PLUGS. UNIT REMOVED AND RETURNED FOR REPAIR.Feb 20, 1996 · N5074R · Hughes 369DSDR 96ZZZX1058Sun Gear Tooth · failureTRANSMISSION SUN GEAR TOOTH FAILURE. REPLACED WTIH NEW FIXTURE.Feb 20, 1996 · N900BH · Bell 412SDR HCMA966Chip Detector · shortedCHIP DET IS SHORTED OUT. REMOVED AND REPLACED WITH NEW.Feb 12, 1996 · N992BH · Snias AS350B2SDR HEEA966679Case Assy · corrodedTRANSMISSION IS CORRODED. (CORROSION BEYOND LIMITS ON FLANGE)Feb 9, 1996 · Bell 212SDR 96ZZZX1164Bearing · spalledMAIN ROTOR TRANSMISSION DISASSEMBLED AFTER CHIPS DISCOVERED ON THE CHIP DETECTOR. BEARING, 369D25140, FOUND HEAVILY SPALLED. REPLACED BEARING.Feb 8, 1996 · N5074R · Hughes 369DSDR HEEA966645Chip Detector · defectiveNO CONTINUITY BETWEEN PINS A AND B WHEN BRIDGING CHIP GAP AND CHECK FOR LEAKS AT ELECTRICAL CONNECTORFeb 6, 1996 · N1546G · Skrsky S76ASDR 96ZZZX1168Transmission · making metalDURING ANNUAL INSPECTION, CHIPS FOUND ON UPPER CHIP PLUG. UNIT REMOVED AND SENT FOR REPAIR.Feb 2, 1996 · N5074R · Hughes 369DSDR HAIGJQR0064Indicator · failedINDICATOR IS ERRATIC - WILL NOT READ ABOVE 50 DEGREE - DROPS TO ZERO DURING FLIGHT, UNRELIABLE. REPLACED WITH NEW INDICATOR FROM BELL.Feb 1, 1996 · N108W · Bell 206LSDR GJQR9664Indicator · erraticINDICATOR IS ERRATIC - WILL NOT READ ABOVE 50 DEGREE - DROPS TO ZERO DURING FLIGHT, UNRELIABLE. REPLACED WITH NEW INDICATOR FROM BELL.Feb 1, 1996 · N108W · Bell 206LSDR 96ZZZX1391Bearing · failedDURING FLIGHT, BOTH GEARBOX AND REAR BEARING SUPPORT HOUSING CHIP LIGHTS ILLUMINATED. UPON DISASSEMBLY OF THE ENGINE, FOUND THE NR 2 BEARING ROLLER CAGE SPLIT IN TWO.Feb 1, 1996 · N587MC · Bell 222USDR 96ZZZX1033Indicator · defectiveINDICATOR EXTENDS IN COLD WEATHER GIVING FALSE INDICATION OF BYPASS CONDITION IN M/R TRANSMISSION OIL FILTER. REPLACED WITH NEW P/N INDICATOR.Jan 31, 1996 · N617DE · Bell 206L3SDR HEEA966519Indicator · stickingINDICATOR STICKING AT 50 DEGREES, METER MOVEMENT BROKEN ON TEMP SIDE.Jan 23, 1996 · N2258F · Bell 412SDR HEEA966484Bearing · spalledBEARING INNER RACE, ROLLERS AND OUTER RACE SPALLING EXCESSIVELY.Jan 19, 1996 · Bolkms BK117B1SDR 96ZZZX1031Housing · damagedREWORK PERFORMED TO SERVO MOUNT PADS BEYOND LIMITS OF OVERHAUL MANUAL SA4047-76-7-8. REWORK AREAS MEASURE IN LENGTH FROM .063 INCH LONG TO 2.957 INCH LONG, WIDTHS MEASURE FROM .063 INCH TO .352 INCH. DEPTHS MEASURE FROM .015 INCH TO .028 INCH AND REWORKED ARJan 16, 1996 · Skrsky S76
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