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.
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 HE66088176Seal · leakingLEAKING HYDRAULIC DRIVE SEAL NOT ALLOWED TO CHANGE SEAL, MUST CHANGE ENTIRE GEARBOX.SDR HEEA088059Gearbox · making metalMAIN ROTOR TRANSMISSION CHIP LIGHT ILLUMINATED. REPLACED WITH SERVICEABLE PART.SDR ALGA087894Bearing · spalledTRANSMISSION REMOVED FOR METAL IN OIL, FOUND BEARING BREAKING DOWN.SDR M7103Bearing · failedAIRCRAFT EXPERIENCED CLUTCH LIGHT DURING FLIGHT AND MADE PRECAUTIONARY LANDING IN PARKING LOT. NO DAMAGE TO AIRCRAFT DUE TO LANDING. EXAMINATION OF AIRCRAFT FOUND LOWER DRIVE BELT PULLEY BEARING FAILURE. PART TT 838.6, OVERHAUL LIFE OF PART 2200 HOURS. BESDR HEEA087851Case · corrodedTRANSMISSION ASSY HAS CORROSION AT LOWER CASE MATING FLANGE. REPLACED WITH SERVICEABLE PART.SDR MDR03016Housing · crackedMGB, UPPER HOUSING, CRACKED UNDER NR 1 INPUT, LT SIDE. THE FIELD CREW NOTICED OIL LEAKING FROM MGB UPPER HOUSING UNDER NR 1 INPUT. INITIAL INSPECTION BY SHOP INDICATED OIL RESIDUE IN AREA, BUT NO CRACK WAS NOTICED. FPI INDICATED NO CRACK. HEAT GUNS WERE USSDR HEEA088026Magnetic Seal · leakingTRANSMISSION INPUT SEAL LEAKING. REPLACED MAG SEAL 206040156001 DUE TO PITTING. REPAIRED.SDR HEEA088084Uniball · wornTRANSMISSION HAS EXCESSIVE WEAR ON UNIBALL. REPLACED.SDR HEEA087860Tube · corrodedMAIN ROTOR GEARBOX OIL TUBE HAS CORROSION FOUND UNDER ADEL CLAMP NOT VISIBLE UNTIL REMOVED. REPLACED WITH SERVICEABLE PART.SDR HEEA087859Tube · corrodedMAIN ROTOR GEARBOX OIL TUBE HAS CORROSION FOUND UNDER ADEL CLAMP NOT VISIBLE UNTIL REMOVED. REPLACED WITH SERVICEABLE PART.SDR HEEA087503Seal · leakingOIL SEEPING FROM TRANSMISSION INPUT SEAL. REPLACED.SDR HEEA087383Tube · corrodedFRETTING CORROSION AT FLARE UNDER "B" NUT. TO BE SENT TO BELL HELICOPTER TEXTRON.SDR HEEA087347Tube · kinkedMAIN ROTOR GEARBOX OIL TUBE KINKED NEAR RADIUS.SDR HEEA087346Tube · leakingFLARE IS WORN AND UNABLE TO STOP LEAK.SDR AUS20030615Pinion Gear · failed(AUS) MAIN TRANSMISSION TAIL ROTOR DRIVESHAFT PINION FAILED IN AREA LOCATED JUST IN FRONT OF THE THREADED AREA ALLOWING THE TAIL ROTOR DRIVE TO SEPARATE. AIRCRAFT STRUCK THE GROUND CAUSING EXTENSIVE DAMAGE TO THE LANDING GEAR.SDR HEEA087180Case · corrodedCORRODED MOUNTING HOLES; LINER WORN; CORRODED ORING GROOVE.SDR HEEA087179Support · leakingMAIN ROTOR GEARBOX AFT SUPPORT LEAKING. REPAIRED.SDR HEEA087178Support · leakingAFT GEARBOX SUPPORT LEAKING. REPAIRED.SDR HEEA087175Seal · leakingGEARBOX OIL PUMP SEAL LEAKING. REPLACED SHAFT 357950110932 DUE TO WORN SPLINES. REPAIRED.SDR HEEA087174Bearing · wornBEARING SEAT WORN. SENT TO ABLE ENGINEERING FOR PARTIAL REPAIR.SDR HEEA087169Bushing · wornBUSHINGS WORN; BUFFER PADS UNBONDED. REPAIRED.SDR HEEA087168Bearing · wornWORN BEARING. REPLACED BEARING 206031594003 DUE TO WORN. REPAIRED.SDR HEEA087167Bearing · wornWORN CENTER BEARING. REPLACED BEARING 206031590003 DUE TO WORN; BUSHING 206-031-564-003 DUE TO WORN. REPAIRED.SDR HEEA087166Bearing · wornDRAG PIN ASSY BEARING WORN. REPAIRED.SDR MDR03015Bearing · disintegratedROLLER BRG FAILED. MGB, SN A6-032, REMOVED FOR MAKING METAL, INDICATED BY MGB CHIP LIGHT. INSP IN SHOP INDICATEDRATCHETING NOISE COMING FROM RT INPUT ASSY WHEN ROTATED. LG AMOUNT OF METALS WERE FOUND IN MGB SUMP. WHILE REMOVING RT 1ST STG PRIMARY INPUT ASSSDR HEEA087046Pump · wornTRANSMISSION OIL PUMP HAS SPLINE WEAR.SDR I05R087967Lever · wornMAIN ROTOR GEARBOX HAS A WORN BEARING, REPLACED PARTSSDR CA030530012Gearbox · making metal(CAN) MAIN TRANSMISSION CHIP LIGHT IN CRUISE, CHIP DETECTORS PULSED UNSUCCESSFULLY, PILOTS LANDED A/C. CHIP DETECTORS INSPECTED AND FOUND .1 FT X .05 FT FERROUS CHIP WITH SEVERAL FERROUS FLAKES. FILTERS INSPECTED, FOUND CONTAMINATED WITH FERROUS FLAKES. TRANSDR CA030613009Case · broken(CAN) WHILE CARRYING OUT A DAILY CHECK ON THE AIRCRAFT THE ENGINEER NOTICED THAT THE ONE EAR OF THE LIFT LINK SUPPORT ON THE TRANSMISSION SUPPORT CASE WAS BROKEN OFF. THE TRANSMISSION SUPPORT CASE WAS REPLACEDSDR HEEA086739Magnetic Seal · leakingGEARBOX MAGNETIC SEAL LEAKING. TO BE SENT TO VENDOR.SDR HEEA086732Friction Ring · leakingTRANSMISSION POWER TAKE OFF SEAL LEAKING. TO BE SENT TO VENDOR.SDR HEEA086667Seal · leakingMAIN ROTOR QUILL ASSY SEAL LEAKS. IN REPAIR.SDR HEEA086618Gearbox · making metalGEARBOX MAKING METAL. REPAIRED.SDR ALGA086418Universal · wornEXCESSIVE AXIAL PLAY.SDR CA030617003Fitting · cracked(CAN) SENT IN FOR OVERHAUL, DUE TO BEARING CHANGE NDT INSPECTION FOUND A 1 INCH CRACK AT BASE OF BEARING LUG TO BASE OF FRAME NEXT TO PIN.SDR 2003F00251Freewheel Unit · draggingDURING DAILY INSPECTION, MECHANIC NOTED FREEWHEELING UNIT STAYED ENGAGED WHEN MOVING MAIN ROTOR FORWARD OR BACKWARD. CONDITION WAS VERIFIED BY PERFORMING AUTO-ROTATION DURING OPS CHECK FLIGHT. MAIN GEARBOX TO BE REPLACED IAW MANUFACTURER.SDR CA030502005Lock · broken(CAN) LOCK FOR BEARING, FOUND BROKEN BY CUSTOMER. UNITS RETURNED FOR METAL CONTAMINATION. ROTOR SHAFT REPAIRED AND BEVEL GEARBOX AND EPICYCLIC OVERHAULED. BEARING PRELOAD IS IMPORTANT DURING REASSEMBLY TO ENSURE LOCK AND THRUST WASHER ARE PROPERLY UNDER LOADSDR I05R086285Oil Cooler · leakingOIL COOLER HAS FITTING LEAKING, REPLACED COOLER.SDR I05R086282Spacer · stuckSPACER STUCK IN LOOSE BUSHING OF SCISSOR LINK. REPLACED SCISSOR LINK AND BUSHING.SDR HEEA087858Tube · corrodedMAIN ROTOR GEARBOX OIL TUBE HAS CORROSION CAUSED BY DISSIMILAR METALS USED IN MANUFACTURING PROCESS. REPLACED WITH SERVICEABLE PART.SDR HEEA087857Line · corrodedCORROSION CAUSED BY DISSIMILAR METALS USED IN MANUFACTURING PROCESS. REPLACED WITH SERVICEABLE PART.SDR AC2A086262Connector · damagedTRANSMISSION SUMP CHIP LITE WOULD NOT PULSE. CLEANED MOISTURE FROM SUMP CONNECTOR PLUG. AIRCRAFT GROUND RUN O.K.SDR AC2A086261Pressure Switch · false indicationWHEN AIRCRAFT IS FLOWN THROUGH RAIN THE TRANSMISSON OIL, RED WARNING LIGHT COMES ON. THE LIGHT GOES OUT SHORTLY AFTER AIRCRAFT IS NOT IN RAIN. THE PRESSURE AND TEMPERATURE ARE IN THE NORMAL RANGE WHEN THE LIGHT COMES ON. CLEANED TRANSMISSION OIL PRESSURE SWSDR CA030528006Case · cracked(CAN) 1 SPLINE, ADJACENT TO 3 REWORKED SPLINES HAS SUSPECTED CRACK, IMPACT DAMAGE AND CORROSION PITTING OVER 40 PERCENT LENGTH OF SPLINE. 2ND ADJACENT SPLINE, ALSO HAS SUSPECTED CRACK AND CORROSION PITTING. CRACKS NOT IDENTIFIED ON INITIAL OH NDI ( FPI). SDR CA030405002Bearing · peeling(CAN) OUTPUT QUILL TAPERED ROLLER BEARING INNER RACE PEELING.SDR CA030405001Bearing · spalled(CAN) GEARBOX RECEIVED FROM A CUSTOMER IN THE USA. RT INPUT SPLIT INNER RACE BEARING PEELING/SPALLING. METAL CONTAMINATION CAUSED DAMAGE TO OTHER INTERNAL BEARINGS.SDR ALGA085884Pinion Gear · spalledDUE TO IMPROPER MESHING OF GEARS, PINION GEAR HAD EXCESSIVE SPALLING ON GEAR TEETH. REMOVED AND REPLACED.SDR CA030425003Bearing · making metal(CAN) DURING 600 HR TRANSMISSION INSPECTION INPUT QUILL WAS REMOVED TO FACILITATE MAINTENANCE. BEARING DEFECTS WERE IDENTIFIED THAT REQUIRED REPLACEMENT PRIOR TO AIRCRAFT WAS RETURNED TO SERVICE.SDR CA030401005Case · broken(CAN) GEARBOX RECEIVED FOR 1500 HOUR INSPECTION. TOP CASE REMOVED AND 10 TEETH FROM INVOLUTE SPLINES WERE BROKEN WHICH IS NOT IN ITSELF AN UNUSUAL OCCURRENCE. WHEN A NEW REPLACEMENT WAS OBTAINED FROM BELL THE LOCKWIRE HOLES FOR THE FILLER CAP AND CHIP PLUG HADSDR CA030327004Bearing · spalled(CAN) RT INPUT SPLIT INNER RACE BALL BEARING PEELING/SPALLING.VOLUME OF METAL CONTAMINATION CAUSED COLLATERAL DAMAGE TO ALL OTHER INTERNAL BEARINGS AND COMPONENTS.
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