JASC 6220
Service difficulty reports · 2,052
Reports filed under 6220 · Main Rotor Head, 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 = '6220' 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 = '6220' 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 AU000425Main Rotor · damaged(AUS) MAIN ROTOR SPLIT CONE HALF INSTALLED UPSIDE DOWN. MAIN ROTOR TRUNNION CHAMFER DAMAGED BY SHARP EDGE OF CONE. MAST SPLIT CONE SEAT FRETTING.SDR 20000718SH017Bearing · damagedDURING DAILY SERVICE CHECK, FOUND ELASTOMERIC SEPARATED FROM SPINDLE. (X)SDR 20000609SH025Freq Adapter · crackedDURING 500-HOUR INSPECTION, FOUND YELLOW BLADE FREQUENCY ADAPTER CRACKED AT EDGE OF KEVLAR MATING SURFACE. THIS IS FIRST OCCURRENCE OF THIS TYPE ON THE 3 AIRCRAFT OF SAME TYPE OPERATED A TOTAL OF 1200 HOURS. NO REASON FOUND FOR DEFECT. (X)SDR 20000602SH011Frahm · damagedSPRING ROTATED RUBBER BUMPER MISSING FROM MAIN ROTOR HEAD. H.A.S. REPLACED WITH NEW FRAHM FROM BELL HELICOPTER. (X)SDR AU000384Strap · deteriorated(AUS) TENSION-TORSION (TT) STRAPS DETERIORATED. THE STRAPS WERE DISTORTED AND THE URETHANE COATING ADJACENT TO THE LATCH BOLT BUSHINGS WAS SPLIT REVEALING THE INTERNAL WINDINGS. (X)SDR CA000731021Bearing · flaking(CAN) VIRBATION, METAL FLAKES IN OIL. REDESIGN OF FLAPPING BEARING HUB IN PROGRESS.SDR CA000925003Bearing · failed(CAN) ROTOR SYSTEM VIBRATION, METAL NOTICED IN OIL AT OIL CHANGE MAINTENANCE.SDR AU000468Starflex · cracked(AUS) MAIN ROTOR STARFLEX HEAD ASSEMBLY CRACKED.SDR CA001013010Bearing · loose(CAN) BEARING FOUND LOOSE IN THE DRAG PIN, POOR STAKING SEEMS TO BE THE CAUSE.SDR 20000605SH003Ball Joint · wornTEFLON LINERS WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X)SDR 20000502SH020Scissors · crackedDURING INSPECTION OVERHAUL, THE END OF THE LEVER ASSY (ROTATING SCISSORS ASSY) WAS FOUND TO HAVE A CRACK AT THE BUSHING BOSS END APPROXIMATELY 1 INCH LONG. MATERIAL IS 2 INCHES THICK. (X)SDR CA001013005Shim · missing(CAN) DURING THE MAIN ROTOR BLADE REMOVAL, NOTICED THAT THE BLADE PINS WERE HARD TO REMOVE. AFTER INSPECTION, FOUND THAT THE SHIMS WERE MISSING FROM THE FREQUENCY ADAPTERS. ONCE THE SHIMS WERE INSTALLED THE BLADE PIN INSTALL WAS NORMAL.SDR 20000605SH010Ball Joint · wornSTARFLEX BALL JOINT - TEFLON LINERS WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X)SDR GJQR0000268Bearing · corrodedSTAIN AND CORROSION PITS ON ROLLERS. (X)SDR TI1R001452Bearing · inoperativeBEARING, REMOVED FROM NR 1 POSITION, REMOVED AND REPLACED.SDR CA000316001Nut · fractured(CAN) AFTER M/R BLADE STRIKE, A CONDITIONAL INSPECTION WAS CARRIED OUT. BOTH ACORN NUTS WERE CONFIRMED FRACTURED BY NDT. ACORN NUTS SENT OUT FOR ANALYSIS.SDR 20000424SH019Bearing · making metalMETAL FLAKES DETECTED ON MAGNETIC PICK-UP IN LOWER GEARBOX AND OIL PUMP MAGNETIC PICK-UP. DISASSEMBLED GEARBOX FOR INSPECTION. BEARING INNER AND OUTER RACES BOTH HAD AREAS THAT HAD FLAKED OFF METAL. (X)SDR 20000523SH003Bolt · wornPRIMARY BLADE REMOVED FOR WEAR. REMOVED AND REPLACED. (X)SDR HEEA066504Bearing · corrodedDUE GRIP RETIREMENT. AT INSPECTION OF PARTS FOUND CORROSION IN DAMPER BEARING BORE AND CORROSION UNDER PADS OF PITCH HORNS.SDR 20000605SH020Ball Joint · wornBALL JOINT, RIGHT THREAD, WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X)SDR 20000605SH019Ball Joint · wornBALL JOINT, STARFLEX - TEFLON LINERS WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X)SDR HEEA065926Bearing · wornBEARING WORN AND SHEARED RUBBER. SERIAL NUMBERS REMOVED ARE LK5157 AND LK5154. REPLACED WITH SERIAL NUMBERS LP7115 (DMR NR 65607101) AND LP5718 (DMR NR 65607102).SDR HEEA065881Frahm Assy · damagedSPRING BROKEN ON FRAM ASSY.SDR HEEA065876Bearing · wornBELLCRANK HAD WORN BEARINGS.SDR 20000407SH007Plate · separatedPOST-FLIGHT DAILY INSPECTION REVEALED LOWER WEAR PLATE, SUPPORTING MAIN ROTOR DROOP RING, BOND BROKEN FROM SCISSOR DRIVE ASSEMBLY. WEAR PLATE WAS BENT AWAY FROM ITS BONDED POSITION AT THE SCISSOR DRIVE ASSEMBLY APPROX 25MM. POSSIBLE CAUSE: FAILURE OF ADHESISDR 20000502SH011Pitch Horn · corrodedDURING DISASSEMBLY FOR 2,500 HOUR OVERHAUL, FOUND PITCH HORN CORRODED DUE TO ADHESIVE NOT COMPATIBLE. (X)SDR 20000502SH010Pitch Horn · corrodedDURING DISASSEMBLY FOR 2,500 HOUR OVERHAUL, FOUND PITCH HORN CORRODED DUE TO ADHESIVE NOT COMPATIBLE. (X)SDR 20000502SH009Adapter · corrodedDURING DISASSEMBLY FOR 2,500 HOUR OVERHAUL, FOUND ADAPTER CORRODED DUE TO PRIMER NOT COMPATIBLE. (X)SDR HEEA065976Stop Assy · crackedBEARINGS CRACKED AND SEPARATED. SERIAL NUMBERS REMOVED ARE 11534 AND 11705. REPLACED WITH SERIAL NUMBERS 0931 AND 0906.SDR 20000406SH053Counterweight · galledLEAD METAL FLAKING DISCOVERED AT SPHERICAL BEARING INSIDE OF FREQUENCY ADAPTERS. FURTHER INSP REVEALED BROKEN BOLT INSIDE OF ANTI-VIBRATOR SPRING HOUSING. UPON REMOVAL AND DISASSEMBLY OF ANTI-VIBRATOR ASSY, THE LEAD WEIGHTS WERE FOUND SEVERELY GALLED DUE TO SDR HEEA065635Bellcrank · damagedTAIL ROTOR CONTROL BELLCRANK ASSY HAD GROOVE WORN INTO CLEVIS FROM ROD ENDS (2 PLACES).SDR HEEA065628Bearing · damagedELASTOMER IN FLAPPING BEARING. PART SCRAPPED.SDR AGQA065550Dampener Pin · wornDAMPENER PIN RIDES UP.SDR HEEA065597Frahm Assy · damagedFRAM ASSY SPRING BROKEN.SDR 20000413SH019Ring · leakingMATING RING LEAKING. REMOVED AND REPLACED. (X)SDR 20000424SH016Bearing · wornTEFLON LINERS WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X)SDR 2000ZZZX749Ball Joint · wornTEFLON LINERS WORN BEYOND SERVICEABLE LIMITS. REPLACED WITH NEW UNIT, CORRECTED PROBLEM.SDR HEEA065462Stop · separatedSEPARATION. SERIAL NUMBERS REMOVED ARE 12839 AND 13244. REPLACED WITH SERIAL NUMBERS 0920 AND 0926.SDR HEEA065461Bearing · separatedBEARING SEPARATION.SDR HEEA065457Horn · corrodedREMOVED HEAD DUE TO GRIP RETIREMENT. AT INSPECTION OF ASSY FOUND PAD UNBONDED ON TWO EACH PITCH HORNS. CLEANED AND FOUND CORROSION BEYOND LIMITS. REMAINING TWO EACH FOUND UNBONDED AND REQUESTED TO BE SENT TO BELL FOR EVALUATION. SERIAL NUMBERS REMOVED ARESDR HEEA065456Horn · corrodedREMOVED HEAD DUE TO GRIP RETIREMENT. AT INSPECTION OF ASSY FOUND PAD UNBONDED ON TWO EACH PITCH HORNS. CLEANED AND FOUND CORROSION BEYOND LIMITS. REMAINING TWO EACH FOUND UNBONDED AND REQUESTED TO BE SENT TO BELL FOR EVALUATION. SERIAL NUMBERS REMOVED ARESDR HEEA065455Damper · corrodedREMOVED HEAD DUE TO GRIP RETIREMENT. AT INSPECTION OF ASSY FOUND CORROSION IN SHEAR BEARING BORE BEYOND LIMITS. REQUESTED DAMPERS TO BE SENT TO BELL FOR EVALUATION. SERIAL NUMBERS REMOVED ARE LK5540, LK5603, LK5654, AND LK5473. REPLACEMENT PART SERIAL NUMSDR 20000404SH024Bearing · roughBEARING ROUGH. REPLACED WITH NEW UNIT, CORRECTED PROBLEM. (X)SDR HEED065754Bearing Pad · separatedBEARING PAD SEPARATED. REPLACED UNIT.SDR 2000ZZZX272Strap · crackedMAIN ROTOR HUB STRAP PACK ASSY WAS FOUND WITH ONE CRACKED LEG AT 226.2 HOURS TSO, SECOND CRACK FOUND AT 542.1 HOURS. BOTH CRACKS WERE IN THE LAG (TRAILING EDGE) LEG OF THE SAME PACK. THIRD AND FAILING CRACK WAS FOUND AT 578.8 HOURS TSO. REPLACED WITH ZERO HRSDR HEED065724Pad Bearing · separatedELASTOMERIC SEPARATION ON AFT PAD.SDR HEEA065238Sleeve · gougedGOUGE IN SLEEVE NEAR BLADE BOLT BUSHING.SDR HEEA065178Yoke · damagedDEEP SCRATCH IN WEB OF YOKE EXCEEDS ALLOWABLE LIMITS.SDR HEEA065164Bearing · separatedDAMPER BEARING SEPARATION.SDR HEEA065161Hub · corrodedMAIN ROTOR HUB HAD CORROSION ON ALL FOUR PITCH HORNS.
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