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 AU980097Fairing · separated(AUS) MAIN ROTOR HEAD FAIRING (CHINAMANS HAT) SEPARATED FROM AIRCRAFT.SUSPECT FAIRING DEVELOPED A CRACK ALLOWING THE FAIRING TO FLEX AND LOOSEN THE ATTACHMENT SCREWS.SDR 98ZZZX1256Starflex · crackedDISCOVERED DURING DAILY INSPECTION, FOUND 2 EACH STARFLEX ARMS SPLINTERED.SDR HEEA0012575Starflex · wornSTARFLEX BALL JOINT WORN TEFLON AND SEAL UNBONDED.SDR HEEA0012555Spring · deterioratedM/R FLAPPING ELASTOMER CRACKING AND DETERIORATED. SERIAL NUMBERS REMOVED LK0092 AND LK0067.SDR HEEA0012486Cap Assy · wornAFT CAP ASSY HAS WORN RUBBER.SDR HEEA0012414Bearing · rustedBEARING FOUND RUSTY AND UNSERVICEABLE. SERIAL NUMBERS REMOVED ARE N0001 AND N0004.SDR HEEA0012385Freq Adapter · separatedTOP AND BOTTOM PLATES SEPARATED. SERIAL NUMBERS REMOVED ARE 5470, 5473, AND 5468.SDR CHI2012Bearing · spalledAFTER SHUTDOWN, NOTICED EXCESSIVE OIL LEAKING FROM AFT HEAD. CLOSER INSPECTION AND SUBSEQUENT REMOVAL OF RED HORIZONTAL HINGE PIN BEARING END CAP REVEALED METAL SHAVINGS COMING FROM RED LEADING HORIZONTAL BEARING. AFTER FURTHER DISASSEMBLY, FOUND A CRACKED HSDR HEEA0012350Hub · defectiveGRIPS AND LOWER CONE SEAT RETIRE. SCRAPPED PARTS.SDR HEEA0012348Bearing · separatedBEARING SEPARATED.SDR 98ZZZX1754Rod End · wornPREMATURE BEARING WEAR. REMOVED AND REPLACED 4 EACH.SDR HEEA0012340Bearing · crackedBEARING IS CRACKED UNDER MOUNTING SURFACE.SDR HEEA0012339Bearing · crackedBEARING IS CRACKED UNDER MOUNTING SURFACE.SDR HEEA0012259Lift Link Assy · separatedLIFT LINK BEARING SEPARATED.SDR 98ZZZX83Frahm Asy · defectiveINSPECTION FOUND M/R FRAHM ASSY HAD LOOSE SPRINGS. REPLACED WITH NEW FRAHM FROM BELL HELICOPTER.SDR CA971223016Strap Pack · broken(CAN) TOP SEGMENT OF STRAP PACK ON MAIN ROTOR HEAD FOUND BROKEN AT THE BLADE GRIP ATTACHMENT.SDR HEEA0012162Bearing · corrodedBEARING HAS CORROSION AND PITTING INSIDE OF BOLT HOLES. SERIAL NUMBERS REMOVED ARE RX1312 AND RX1293.SDR HEEA0012089Damper Assy · leakingDAMPER ASSY HAS LOW FLUID.SDR HEEA0012039Dampener · wornDAMPENER INNER BUSHING CAVITY OVERSIZED.SDR HEEA0012038Dampener · wornWEAR SPOTS ON INSIDE CYCLE WALL.SDR 98ZZZX740Frahm · failedAIRCRAFT TT: 198.7 HOURS. THE RUBBER BOOT CAME LOOSE AND SPRING ROTATED. UNABLE TO BALANCE HELICOPTER. REPLACED FRAHM AND BALANCED HELICOPTER.SDR HEEA0011967Screw · brokenBROKEN IN SMALLER THREADS AT THE END OF THIS BOLT. REPLACED WITH NEW BOLT.SDR 98ZZZX85Hub · vibrationERRATIC TRACK AND BALANCE .89 IPS AT 11:00 TO .15 AT 9:00 CHANGES BY SHAKING COLLECTIVE GRIP LENGTH. ALSO, APPEARS TO CHANGE BY PULLING ON BLADES.SDR AU971422Pin · cracked(AUS) MAIN ROTOR HEAD TENSION/TORSION PIN CRACKED.SDR HEEA0011785Damper Assy · leakingDAMPER ASSY HAS NO DAMPENING ACTION AND LEAKING.SDR HEEA0011784Damper Assy · defectiveDAMPER ASSY HAS NO DAMPENING ACTION AND LEAKING.SDR 97ZZZX4969Washer · crackedM/R HUB S/N JILM 5051. WASHER WAS FOUND CRACKED STRAIGHT OUT INSIDE DIAMETER TO OUTSIDE DIAMETER DURING HUB OVERHAUL. WASHERS ARE NOT SPECIFIED TO BE M.P.I. NORMAL OVERHAUL PROCEDURES ARE TO M.P.I. THESE ITEMS.SDR 97ZZZX4833Bearing · defectiveFOUR NEW M/R GRIP BEARINGS WERE RECEIVED FROM BELL HELICOPTER. A MECHANIC CLEANED THEM PRIOR TO PACKING WITH GREASE AND ON ONE BEARING FOUND THAT ONE ROLLER WAS MISSING, A SECOND BEARING HAD 7 ROLLERS THAT WOULD NOT ROLL IN THE CAGE (APPROXIMATELY 1 INCH SPANSDR HEEA0011742Ball Joint · wornSTARFLEX BALL JOINT BEARINGS WORN.SDR HEEA0011738Stop Assy · wornBEARINGS ARE WORN AND DETERIORATED. SERIAL NUMBERS REMOVED ARE 10426, 8824 AND 8836.SDR 97ZZZX4909Damper Assy · deterioratedDAILY INSPECTION FOUND FRAHM DAMPER ASSY RUBBER DETERIORATING AND STICKING OUT OF DAMPER.SDR HEEA0011722Bearing · wornM/R DAMPER BEARINGS WORN.SDR HEEA0011640Damper · leakingDAMPER LEAKING.SDR HEEA0011577Bolt · mismanufacturedMISMANUFACTURED. BOLT HOLE TOO SMALL FOR KEY.SDR HEEA0011532Frahm Assy · defective4 PER VIBRATION. FRAHM ASSY DEFECT.SDR HEEA0011492Starflex · wornSTARFLEX BALL JOINT WORN BEYOND LIMITS.SDR CA971113046Buffer Pad · disbonded(CAN) ROTOR HEAD ASSEMBLY RECEIVED FROM VENDOR TSO ZERO HOURS. SAME FOUND BUFFER PAD ON GRIP DEBONDED BY APPROXIMATELY 50 PERCENT.SDR HEEA0011407Frahm Assy · defectiveVIBRATIONS, UNABLE TO BALANCE M/R SYSTEM.SDR 97ZZZX5156Hub · wornDURING 100-HOUR INSPECTION, EVIDENCE OF FRETTING NOTED AT MAIN ROTOR HUB ATTACH BOLT THRUST WASHERS. DISASSSEMBLY REVEALED SEVERE WEAR ON MAIN ROTOR HEAD HUB BEARINGS AND THE JOURNALS RIDING INSIDE THESE BEARINGS WHICH ALLOWED RELATIVE MOTION BETWEEN M/R HUB SDR 97ZZZX4711Frahm Assy · wornRUBBER BOOT CAME LOOSE AND SPRINGS ROTATED INSIDE FRAHM. HELICOPTER HAD A 4 PER VIBRATION AND COULD NOT BE ELIMINATED. REPLACED FRAHM ASSY AND BALANCED HELICOPTER ROTOR SYSTEM TO ACCEPTABLE LEVELS.SDR HEEA0011222Bearing · wornWORN BALL BEARING SHOULDER ON ROD END. REPLACED ROD END AND PITCH HORN.SDR CA971113045Grip · corroded(CAN) CORROSION BEYOND LIMITS FOUND UNDER DEBONDED UPPER BLADE GRIP BUFFER PAD.SDR HEEA0011126Seat · crackedLOWER CONE SEAT CRACKED.SDR HEEA0011573Cone · wornREPLACED LOWER CONE AND CONE SET WITH SEAT P/N 407-010-107-103 ON 9-27-97.SDR HEEA0011572Cone · wornREPLACED LOWER CONE AND CONE SET WITH SEAT P/N 407-010-107-103 ON 9-27-97.SDR 97ZZZX4482Starflex · failedPILOT EXPERIENCED A VIBRATION WHILE IN APPROX 5 FOOT HOVER. GROUND OBSERVESENCES NOTED A SIGNIFICANT BLADE DEVIATION AT THE ONSET OF VIBRATION IN HOVER. PILOT LOWERED AIRCRAFT TO GROUND AND AT TOUCH DOWN, SEVERITY OF VIBRATION INCREASED. COLLECTIVE WAS BOTTSDR 97ZZZX4341Ring · misinstalledDURING AN ANNUAL INSPECTION, DISCOVERED THE DROOP STOP RING WAS PREVIOUSLY INSTALLED INVERTED. THE MAIN ROTOR HEAD WAS ASSEMBLED THREE YEARS AND 60 HOURS PRIOR TO THIS INSPECTION.SDR 97ZZZX4347Bracket Bolt · crackedDURING OVERHAUL OF THE MAIN ROTOR HEAD, A FLUORESCENT MAGNETIC PARTICLE INSPECTION REVEALED A TOTAL OF 4 CRACK INDICATIONS IN BOLT HEAD TO SHANK RADIUS. LARGEST CRACK IS 0.200 INCH IN LENGTH RADIALLY AROUND SHANK. THREE SMALL CRACKS ARE 0.040 INCH LONG EACH.SDR HEEA0011038Bearing · deterioratingMEMBER SEPARATING AND DETERIORATING.SDR 97ZZZX3989Rotor Grip · crackedMAIN ROTOR GRIP, DRAG BRACE ATTACHMENT, LOWER LUG CRACKED, 1.25 INCHES LONG. DEFECT IDENTIFIED VISUALLY DURING 5,000 HR/5 YEAR E-CHECK. DEFECT BECAME APPARENT DURING DISASSEMBLY. DEFECTIVE PART BEING RETURNED TO BELL FOR INVESTIGATION.
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