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 HEEA0013157Roller Bearing · failed3000 HOUR OVERHAUL DUE. ROLLER BEARING ROLLOVER. SCRAPPED PART. REPLACED WITH SERVICEABLE PART.Mar 3, 1998 · N967MB · Bolkms BO105SSDR HEEA0013156Bevel Gear · worn3000 HOUR OVERHAUL DUE. BEVEL GEAR WORN SEAT AREA. SCRAPPED PART. REPLACED WITH SERVICEABLE PART.Mar 3, 1998 · N967MB · Bolkms BO105SSDR HEEA0013155Drive Shaft · worn3000 HOUR OVERHAUL DUE. WORN GEAR SET. SCRAPPED PART. REPLACED WITH SERVICEABLE PART.Mar 3, 1998 · N967MB · Bolkms BO105SSDR HEEA0013154Sun Gear · spalled3000 HOUR OVERHAUL DUE. SUN GEAR SPALLING. SCRAPPED PART. REPLACED WITH SERVICEABLE PART.Mar 3, 1998 · N967MB · Bolkms BO105SSDR HEEA0013153Elbow · corroded3000 HOUR OVERHAUL DUE. ELBOW HAS CORROSION. SCRAPPED PART. REPLACED WITH SERVICEABLE PART.Mar 3, 1998 · N967MB · Bolkms BO105SSDR HEEA0013152Planetary Gear · corroded3000 HOUR OVERHAUL DUE. PLANETARY GEAR HAS CORROSION. SCRAPPED PART. REPLACED WITH SERVICEABLE PART.Mar 3, 1998 · N967MB · Bolkms BO105SSDR HEEA0013151Accy Housing · corroded3000 HOUR OVERHAUL DUE. ACCY HOUSING CORROSION. SCRAPPED PART. REPLACED WITH SERVICEABLE PART.Mar 3, 1998 · N967MB · Bolkms BO105SSDR HEEA0013150Sliding Sleeve · corroded3000 HOUR OVERHAUL DUE. SLIDING SLEEVE HAS CORROSION. SCRAPPED PART. REPLACED WITH SERVICEABLE PART.Mar 3, 1998 · N967MB · Bolkms BO105SSDR HEEA0013149Sun Gear · corroded3000 HOUR OVERHAUL DUE. SUN GEAR FRETTING CORROSION. SCRAPPED PART. REPLACED WITH SERVICEABLE PART.Mar 3, 1998 · N967MB · Bolkms BO105SSDR HEEA0013148Connecting Shaft · worn3000 HOUR OVERHAUL DUE. CONNECTING SHAFT DRIVE SPLINES WORN. SCRAPPED PART. REPLACED WITH SERVICEABLE PART.Mar 3, 1998 · N967MB · Bolkms BO105SSDR HEEA0013147Planetary Axle · pitting3000 HOUR OVERHAUL DUE. PLANITARY AXLE PITTING. SCRAPPED PART. REPLACED WITH SERVICEABLE PART.Mar 3, 1998 · N967MB · Bolkms BO105SSDR HEEA0013146Gear · spalled3000 HOUR OVERHAUL DUE. GEAR SPALLING. SCRAPPED PART. REPLACED WITH SERVICEABLE PART.Mar 3, 1998 · N967MB · Bolkms BO105SSDR HEEA0013145Shaft · worn3000 HOUR OVERHAUL DUE. WORN CLUTCH AREA. SCRAPPED PART. REPLACED WITH SERVICEABLE PART.Mar 3, 1998 · N967MB · Bolkms BO105SSDR HEEA0013143Washer · worn3000 HOUR OVERHAUL DUE. WASHER WORN. SCRAPPED PART. REPLACED WITH SERVICEABLE PART.Mar 3, 1998 · N967MB · Bolkms BO105SSDR HEEA0013142Outer Deflection · cracked3000 HOUR OVERHAUL DUE. OUTER DEFLECTION CRACKED. SCRAPPED PART. REPLACED WITH SERVICEABLE PART.Mar 3, 1998 · N967MB · Bolkms BO105SSDR HEEA0013138Seal · leakingSEAL LEAKING. REPLACED WITH SERVICEABLE SEAL.Mar 3, 1998 · N33008 · Bell 412SDR HEEA0013120Upper Housing · crackedCRACK FOUND ON INBOARD RADIUS AND ACROSS RIB IN UPPER AREA OF HOUSING. REPLACED WITH SERVICEABLE PART.Mar 3, 1998 · N3071K · Bolkms BO105SSDR 98ZZZX1779Seal · leakingSEAL CHIPPED AND LEAKING. REMOVED AND REPLACED.Mar 1, 1998 · N4UV · Bell 230SDR 99ZZZX900Retainer · crackedUPON TEAR-DOWN OF TRANSMISSION FOR INSPECTION, SCREEN ASSY WAS FULL OF NYLON PIECES. INVESTIGATION REVEALED RETAINERS ON PLANETARY GEAR, 1 EACH, COMPLETELY MISSING AND, 2 EACH, CRACKED.Feb 28, 1998 · N5000G · Bell 206L1SDR 98ZZZX1009Gearbox · bindingGEARBOX BINDING AND MAKING NOISE WHEN TURNED BY HAND. NON-METALIC CONTAMINATION FOUND ON OIL PUMP INLET SCREEN AND IN SUMP AND INTERNAL FILTER.Feb 25, 1998 · N5017H · Bell 212SDR HEEA0013027Transmitter · inoperativeOIL TRANSMITTER INOPERATIVE.Feb 11, 1998 · N57416 · Bell 407SDR HEEA0013000Ring Gear · corrodedRING GEAR CORROSION ON UPPER AND LOWER FLANGES.Feb 10, 1998 · N33008 · Bell 412SDR CHI2043Seal Ring · unbondedSEAL RING UNBONDED FROM SHAFT. THIS WAS DISCOVERED DURING A TRANSMISSION CHANGE. SUSPECT POOR QUALITY ADHESIVE USED DURING MANUFACTURE. THIS HAS BEEN A PROBLEM IN THE PAST. SUBMITTER HAS REPAIRED THIS BEFORE WITH 1442 B 1/2 IN THE FIELD AND AT OVERHAUL. SFeb 6, 1998 · N184CH · Kawski KV1072SDR HEEA0012813Bearing · pittedBEARING PITTED. REPLACED WITH SERVICEABLE BEARING.Feb 5, 1998 · N3897N · Bell 214STSDR HEEA0012765Bevel Gear · spalledFOUND SPALLING ON BEVEL GEAR TEETH. REPLACED WITH SERVICEABLE PART.Feb 5, 1998 · N4573B · Bolkms BO105SSDR HEEA0012764Sun Gear · spalledFOUND SPALLING ON SUN GEAR TEETH. REPLACED WITH SERVICEABLE PART.Feb 5, 1998 · N4573B · Bolkms BO105SSDR HEEA0012763Bearing · corrodedBEARINGS CORRODED. BEARING CAGE RUBBING AND TIGHTING UP ON INNER RACE. REPLACED WITH SERVICEABLE BEARING SET.Feb 5, 1998 · N2149S · Bell 412SDR HEEA0012753Indicator · failedNO INDICATION ON PRESSURE SIDE.Feb 2, 1998 · N612PH · Bell 407SDR 98ZZZX1260Packing · leakingAFTER ASSEMBLY OF TRANSMISSION AFTER 4,500 HOUR OVERHAUL AT PRESSURE CHECK, FOUND THE L-1523-1487 O-RING PACKING CHANGED APPROX 4 TIMES TO STOP THE INPUT QUILL FROM LEAKING. UPON EXAMINATION OF SEVERAL NEW PACKINGS, FOUND SOME PACKING APPROX 0.022 INCH THICKEJan 30, 1998 · Bell 206L1SDR HEEA0012609Stop · brokenYOKE ASSY STOP BROKEN.Jan 22, 1998 · N6097Z · Snias AS350B2SDR 98ZZZX1008Epicyclic · scoredEPICYCLIC SENT IN FOR MODERATE SCORING ON INNER RACE OF THREE GEARS AND SLIGHT PITTING ON ONE GEAR.Jan 21, 1998 · Snias AS350B2SDR HEEA0012581Seal · defectiveMAGNETIC RING HAS NO MAGNETISM.Jan 14, 1998 · Bell 412SDR HEEA0012537Transmitter · failedINDICATES HIGH AND ALSO SHOWS 10-20 PSI STATIC.Jan 6, 1998 · N5748M · Bell 214STSDR HEEA0012524Ring Gear · corrodedFRETTING CORROSION ON FLANGE SURFACE AND PILOT DIAMETERS (UPPER AND LOWER)Jan 6, 1998 · N2148K · Bell 412SDR HEEA0012504Gear Assy · wornGEAR ASSY HAS WORN SEAL RIDE.Jan 6, 1998 · N2148K · Bell 412SDR HEEA0012499Adapter · corrodedADAPTER HAS CORROSION AT SEAL RIDE.Jan 6, 1998 · N2148K · Bell 412SDR HEEA0012497Case Assy · corrodedCASE ASSY HAS CORROSION PITS ON LOWER FLANGE AND PILOT DATA SURFACES.Jan 6, 1998 · N2148K · Bell 412SDR HEEA0012462Gearbox · corrodedMAIN GRBOX CASE CORROSION.Jan 6, 1998 · N9151A · Aerosp SA315BSDR 98ZZZX914Bevel Gear · defectiveGEAR WOULD NOT GET A CONTACT PATTERN WITHIN ACCEPTABLE LIMITS WHEN MATED TO BEVEL. GEARSHAFT P/N 4639311043, S/N 797. REMOVED AND REPLACED.Jan 6, 1998 · Bolkms BK117C1SDR 98ZZZX1271Sun Gear · wornSUN GEAR AND GEARSHAFT WORN BEYOND LIMITS. TIME SINCE INSPECTED AND REPACKED, 1,379.4 HOURS. TT: 3,008.8 HOURS. SUBMITTER STATED REPACKED 4-27-91. GREASE OVER 6 YEARS OLD. SUGGEST PUTTING CALENDER TIME LIMIT ON SUN GEAR INSPECTION AND REPACK OF 3 YEARS OJan 5, 1998 · N2621 · Bell 206L1SDR HAIGJQR0158Chip Detector · defectiveNO GROUNDING POINTS THROUGH LOCKING PINS & CASE. REPLACED WITH NEW PART FROM BHTDec 31, 1997 · N98W · Bell 212SDR 98ZZZX734Ring Gear · brokenPILOTS REPORTED MAIN ROTOR TRANS CHIP LIGHT AND KNOCKING SOUND. CHECKED CHIP PLUGS AND FOUND DARK GRAY INTERNAL LOOKING METAL ON CHIP DETECTOR. REMOVED MAIN ROTOR TRANSMISSION FROM SERVICE. SENT MAIN ROTOR TRANSMISSION TO NAC IN LONG BEACH. WHEN DISASSEMBLDec 30, 1997 · N272MK · Hughes 369ESDR HEEA0012389Transmission · defectiveTRANSMISSION WILL NOT FIT ON AIRCRAFT. (COULD NOT INSTALL TRANS. RESTRAINT WITH HOLE IN JOURNAL BEARING POSITION AS FAR OUT AS POSSIBLE STILL COULD NOT INSTALL RESTRAINT. TRIED A NEW RESTRAINT, AND HAD SAME PROBLEM. TRIED STOP MOUNTS FROM OLD TRANSMISSION -Dec 29, 1997 · N10778 · Bell 206L1SDR 98ZZZX1807Transmitter · erraticERRATIC NR 1 TRANSMISSION OIL PRESSURE INDICATION. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.Dec 29, 1997 · N911VU · Bolkms BK117B1SDR HEEA0012346Bearing · crackedBEARING CRACKED INNER RACE NEAR TANG.Dec 15, 1997 · N7059J · Bolkms BK117B1SDR HEEA0012267Oil Pump · crackedCRACKED HOUSING (CRACK SEEMS TO HAVE OCCURED WHEN THE OIL PUMP ASSY WAS INSTALLED INTO THE TRANSMISSION.Dec 5, 1997 · Bell 206L4SDR HEEA0012252Pump · leakingTRANSMISSION OIL PUMP LEAKING.Dec 5, 1997 · N427PH · Bell 407SDR HEEA0012246Case Assy · wornMAIN CASE ASSY INPUT LINER WORN.Dec 5, 1997 · N210PH · Bell 206L3SDR HEEA0012235Transmission · making metalTRANSMISSIONMAKING METAL.Dec 3, 1997 · N404PH · Bell 407SDR HEEA0012215Center Case · wornCENTER CASE LINER LOOSE AND T/R BORE WORN.Dec 3, 1997 · N911EB · Bolkms BO105S
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