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 HEEA0013157Roller Bearing · failed3000 HOUR OVERHAUL DUE. ROLLER BEARING ROLLOVER. SCRAPPED PART. REPLACED WITH SERVICEABLE PART.SDR HEEA0013156Bevel Gear · worn3000 HOUR OVERHAUL DUE. BEVEL GEAR WORN SEAT AREA. SCRAPPED PART. REPLACED WITH SERVICEABLE PART.SDR HEEA0013155Drive Shaft · worn3000 HOUR OVERHAUL DUE. WORN GEAR SET. SCRAPPED PART. REPLACED WITH SERVICEABLE PART.SDR HEEA0013154Sun Gear · spalled3000 HOUR OVERHAUL DUE. SUN GEAR SPALLING. SCRAPPED PART. REPLACED WITH SERVICEABLE PART.SDR HEEA0013153Elbow · corroded3000 HOUR OVERHAUL DUE. ELBOW HAS CORROSION. SCRAPPED PART. REPLACED WITH SERVICEABLE PART.SDR HEEA0013152Planetary Gear · corroded3000 HOUR OVERHAUL DUE. PLANETARY GEAR HAS CORROSION. SCRAPPED PART. REPLACED WITH SERVICEABLE PART.SDR HEEA0013151Accy Housing · corroded3000 HOUR OVERHAUL DUE. ACCY HOUSING CORROSION. SCRAPPED PART. REPLACED WITH SERVICEABLE PART.SDR HEEA0013150Sliding Sleeve · corroded3000 HOUR OVERHAUL DUE. SLIDING SLEEVE HAS CORROSION. SCRAPPED PART. REPLACED WITH SERVICEABLE PART.SDR HEEA0013149Sun Gear · corroded3000 HOUR OVERHAUL DUE. SUN GEAR FRETTING CORROSION. SCRAPPED PART. REPLACED WITH SERVICEABLE PART.SDR HEEA0013148Connecting Shaft · worn3000 HOUR OVERHAUL DUE. CONNECTING SHAFT DRIVE SPLINES WORN. SCRAPPED PART. REPLACED WITH SERVICEABLE PART.SDR HEEA0013147Planetary Axle · pitting3000 HOUR OVERHAUL DUE. PLANITARY AXLE PITTING. SCRAPPED PART. REPLACED WITH SERVICEABLE PART.SDR HEEA0013146Gear · spalled3000 HOUR OVERHAUL DUE. GEAR SPALLING. SCRAPPED PART. REPLACED WITH SERVICEABLE PART.SDR HEEA0013145Shaft · worn3000 HOUR OVERHAUL DUE. WORN CLUTCH AREA. SCRAPPED PART. REPLACED WITH SERVICEABLE PART.SDR HEEA0013143Washer · worn3000 HOUR OVERHAUL DUE. WASHER WORN. SCRAPPED PART. REPLACED WITH SERVICEABLE PART.SDR HEEA0013142Outer Deflection · cracked3000 HOUR OVERHAUL DUE. OUTER DEFLECTION CRACKED. SCRAPPED PART. REPLACED WITH SERVICEABLE PART.SDR HEEA0013138Seal · leakingSEAL LEAKING. REPLACED WITH SERVICEABLE SEAL.SDR HEEA0013120Upper Housing · crackedCRACK FOUND ON INBOARD RADIUS AND ACROSS RIB IN UPPER AREA OF HOUSING. REPLACED WITH SERVICEABLE PART.SDR 98ZZZX1779Seal · leakingSEAL CHIPPED AND LEAKING. REMOVED AND REPLACED.SDR 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.SDR 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.SDR HEEA0013027Transmitter · inoperativeOIL TRANSMITTER INOPERATIVE.SDR HEEA0013000Ring Gear · corrodedRING GEAR CORROSION ON UPPER AND LOWER FLANGES.SDR 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. SSDR HEEA0012813Bearing · pittedBEARING PITTED. REPLACED WITH SERVICEABLE BEARING.SDR HEEA0012765Bevel Gear · spalledFOUND SPALLING ON BEVEL GEAR TEETH. REPLACED WITH SERVICEABLE PART.SDR HEEA0012764Sun Gear · spalledFOUND SPALLING ON SUN GEAR TEETH. REPLACED WITH SERVICEABLE PART.SDR HEEA0012763Bearing · corrodedBEARINGS CORRODED. BEARING CAGE RUBBING AND TIGHTING UP ON INNER RACE. REPLACED WITH SERVICEABLE BEARING SET.SDR HEEA0012753Indicator · failedNO INDICATION ON PRESSURE SIDE.SDR 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 THICKESDR HEEA0012609Stop · brokenYOKE ASSY STOP BROKEN.SDR 98ZZZX1008Epicyclic · scoredEPICYCLIC SENT IN FOR MODERATE SCORING ON INNER RACE OF THREE GEARS AND SLIGHT PITTING ON ONE GEAR.SDR HEEA0012581Seal · defectiveMAGNETIC RING HAS NO MAGNETISM.SDR HEEA0012537Transmitter · failedINDICATES HIGH AND ALSO SHOWS 10-20 PSI STATIC.SDR HEEA0012524Ring Gear · corrodedFRETTING CORROSION ON FLANGE SURFACE AND PILOT DIAMETERS (UPPER AND LOWER)SDR HEEA0012504Gear Assy · wornGEAR ASSY HAS WORN SEAL RIDE.SDR HEEA0012499Adapter · corrodedADAPTER HAS CORROSION AT SEAL RIDE.SDR HEEA0012497Case Assy · corrodedCASE ASSY HAS CORROSION PITS ON LOWER FLANGE AND PILOT DATA SURFACES.SDR HEEA0012462Gearbox · corrodedMAIN GRBOX CASE CORROSION.SDR 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.SDR 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 OSDR HAIGJQR0158Chip Detector · defectiveNO GROUNDING POINTS THROUGH LOCKING PINS & CASE. REPLACED WITH NEW PART FROM BHTSDR 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 DISASSEMBLSDR 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 -SDR 98ZZZX1807Transmitter · erraticERRATIC NR 1 TRANSMISSION OIL PRESSURE INDICATION. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.SDR HEEA0012346Bearing · crackedBEARING CRACKED INNER RACE NEAR TANG.SDR HEEA0012267Oil Pump · crackedCRACKED HOUSING (CRACK SEEMS TO HAVE OCCURED WHEN THE OIL PUMP ASSY WAS INSTALLED INTO THE TRANSMISSION.SDR HEEA0012252Pump · leakingTRANSMISSION OIL PUMP LEAKING.SDR HEEA0012246Case Assy · wornMAIN CASE ASSY INPUT LINER WORN.SDR HEEA0012235Transmission · making metalTRANSMISSIONMAKING METAL.SDR HEEA0012215Center Case · wornCENTER CASE LINER LOOSE AND T/R BORE WORN.
Back to JASC 6320