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.
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 HAI00000076Indicator · defectiveDURING 1500 TRANSMISSION SUN GEAR INSPECTION COMPLETED TB206L-95-183 PER BULLETIN. REPLACED WITH NEW PART FROM BHTSDR HEEA967267Bearing · pittedEXCESSIVE PITTING ON ROLLERS AND OUTER RACE.SDR 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 -FURTSDR AU960822Bearing · failed(AUS) MAIN TRANSMISSION COOLING FAN DRIVE BEARING FAILED - METAL CONTAMINATION OF TRANSMISSION OIL SYSTEMSDR 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.SDR HEEA967240Bolt · crackedAT NORMAL OVERHAUL FOUND MR GEAR BOX BOLT WITH CRACK INDICATIONS.SDR HEEA967239Shaft · crackedAT NORMAL OVERHAUL FOUND CRACK INDICATIONS.SDR HEEA967238Gear · crackedAT NORMAL OVERHAUL FOUND CRACK INDICATIONS.SDR HEEA967216Seal Assy · crackedFOUND CRACK ACROSS CARBON SEAL. SENT TO MAGNETIC SEAL CORP. FOR INSPECTION AND REPAIR.SDR HEEA967174Indicator · malfunctionPRESSURE READS HIGH AND TEMP NEEDLE STICKS. GLASS IS FOGGEDSDR HEEA967167Indicator · fluctuatesPRESSURE SIDE FLUCTUATES WHEN HOT.SDR 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.SDR HEEA967082Case Assy · defective#7 OIL JET BORE IMPROPERLY MACHINED, OIL JET WILL NOT FIT. REMOVED FROM CUSTOMER AIRCRAFT N703H.SDR 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 INISDR HEEA967063Cable · brokenCABLE BROKEN AT TRANSMISSION END.SDR 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, CHIPPEDSDR HEEA967003Pin Spacer · brokeM/R GR BOX EXPANSION PIN SPACER BROKE.SDR 96ZZZX2590Bearing · scoredFOUND LOWER MAST ALIGNMENT BEARING BAD WHEN PERFORMING THE SUN GEAR INSPECTION. TRANSMISSION, S/N BMC 00687.SDR 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.SDR HEEA966974Indicator · inopGR BOX INDICATOR NEEDLES INOPERATIVE.SDR HEEA966939Upper Housing · wornBUSHING BORE WORN BEYOND 151.04 MIN.SDR HEEA966938Lower Housing · liner looseSTEEL LINER ON RIGHT INPUT BORE LOOSE.SDR 96ZZZX3581Switch · malfunctionGEARBOX OIL PRESSURE SWITCH INOPERATIVE. CAUSES LOW PRESSURE WARNING LIGHT AT FLIGHT IDLE. REPALCED WITH NEW UNIT, CORRECTED PROBLEM.SDR 96ZZZX3136Transducer · defectiveTRANSDUCER UNIT CAUSES PRESSURE GAUGE TO FLUCTUATE 4 PERCENT TO 8 PERCENT. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.SDR 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.SDR 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 SDR 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.SDR 96ZZZX3580Switch · failedGEARBOX OIL PRESSURE SWITCH INOPERATIVE. LOW PRESSURE WARNING LIGHT WILL NOT COME ON AT SHUT-DOWN. REPLACED WTIH NEW UNIT, CORRECTED PROBLEM.SDR 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 THSDR 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.SDR 96ZZZX3155Transducer · defectivePRESSURE TRANSDUCER CAUSES PRESSURE GAUGE TO FLUCTUATE. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.SDR 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.SDR HEEA966753Switch · defectiveCAUSES MGBP LIGHT TO COME ON INTERMITTENTLY.SDR HEEA966733Bearing · failedBEARING BALLS AND RACER SPALLED CAUSING TRANSMISSION METAL IN OIL. REPLACED WITH SERVICEABLE BEARING.SDR ERAA96201Indicator · defectiveNO TEXTSDR 96ZZZX1171Transmission · seals leakTRANSMISSION REMOVED TO REPLACE ALL OIL SEALS DUE TO LEAKING.SDR 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.SDR 96ZZZX1058Sun Gear Tooth · failureTRANSMISSION SUN GEAR TOOTH FAILURE. REPLACED WTIH NEW FIXTURE.SDR HCMA966Chip Detector · shortedCHIP DET IS SHORTED OUT. REMOVED AND REPLACED WITH NEW.SDR HEEA966679Case Assy · corrodedTRANSMISSION IS CORRODED. (CORROSION BEYOND LIMITS ON FLANGE)SDR 96ZZZX1164Bearing · spalledMAIN ROTOR TRANSMISSION DISASSEMBLED AFTER CHIPS DISCOVERED ON THE CHIP DETECTOR. BEARING, 369D25140, FOUND HEAVILY SPALLED. REPLACED BEARING.SDR HEEA966645Chip Detector · defectiveNO CONTINUITY BETWEEN PINS A AND B WHEN BRIDGING CHIP GAP AND CHECK FOR LEAKS AT ELECTRICAL CONNECTORSDR 96ZZZX1168Transmission · making metalDURING ANNUAL INSPECTION, CHIPS FOUND ON UPPER CHIP PLUG. UNIT REMOVED AND SENT FOR REPAIR.SDR HAIGJQR0064Indicator · failedINDICATOR IS ERRATIC - WILL NOT READ ABOVE 50 DEGREE - DROPS TO ZERO DURING FLIGHT, UNRELIABLE. REPLACED WITH NEW INDICATOR FROM BELL.SDR GJQR9664Indicator · erraticINDICATOR IS ERRATIC - WILL NOT READ ABOVE 50 DEGREE - DROPS TO ZERO DURING FLIGHT, UNRELIABLE. REPLACED WITH NEW INDICATOR FROM BELL.SDR 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.SDR 96ZZZX1033Indicator · defectiveINDICATOR EXTENDS IN COLD WEATHER GIVING FALSE INDICATION OF BYPASS CONDITION IN M/R TRANSMISSION OIL FILTER. REPLACED WITH NEW P/N INDICATOR.SDR HEEA966519Indicator · stickingINDICATOR STICKING AT 50 DEGREES, METER MOVEMENT BROKEN ON TEMP SIDE.SDR HEEA966484Bearing · spalledBEARING INNER RACE, ROLLERS AND OUTER RACE SPALLING EXCESSIVELY.SDR 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 AR
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