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 QR9R2025031900004Bearing · wornDURING INSPECTION OF NEEDLE BEARING, MAINTENANCE FOUND THE PROTECTIVE COATING WORN OFF OF BEARING (ROTOR STAR CONTACT POINT) CAUSING DAMAGE TO ROTOR STAR.SDR QR9R2025031900003Bearing · wornDURING INSPECTION OF NEEDLE BEARING, MAINTENANCE FOUND THE PROTECTIVE COATING WORN OFF OF BEARING (ROTOR STAR CONTACT POINT) CAUSING DAMAGE TO ROTOR STAR.SDR QR9R2025031900002Bearing · wornDURING INSPECTION OF NEEDLE BEARING, MAINTENANCE FOUND THE PROTECTIVE COATING WORN OFF OF BEARING (ROTOR STAR CONTACT POINT) CAUSING DAMAGE TO ROTOR STAR.SDR QR9R2025031900001Bearing · wornDURING INSPECTION OF NEEDLE BEARING, MAINTENANCE FOUND THE PROTECTIVE COATING WORN OFF OF BEARING (ROTOR STAR CONTACT POINT) CAUSING DAMAGE TO ROTOR STAR.SDR QR9R2025022100008Bearing · wornDURING INSPECTION OF NEEDLE BEARING, MAINTENANCE FOUND THE PROTECTIVE COATING WORN OFF OF BEARING (ROTOR STAR CONTACT POINT) CAUSING DAMAGE TO ROTOR STAR.SDR QR9R2025022100007Bearing · wornDURING INSPECTION OF NEEDLE BEARING, MAINTENANCE FOUND THE PROTECTIVE COATING WORN OFF OF BEARING (ROTOR STAR CONTACT POINT) CAUSING DAMAGE TO ROTOR STAR.SDR QR9R2025022100006Bearing · wornDURING INSPECTION OF NEEDLE BEARING, MAINTENANCE FOUND THE PROTECTIVE COATING WORN OFF OF BEARING (ROTOR STAR CONTACT POINT) CAUSING DAMAGE TO ROTOR STAR.SDR QR9R2025022100005Bearing · wornDURING INSPECTION OF NEEDLE BEARING, MAINTENANCE FOUND THE PROTECTIVE COATING WORN OFF OF BEARING (ROTOR STAR CONTACT POINT) CAUSING DAMAGE TO ROTOR STAR.SDR QR9R2025022100004Bearing · wornDURING INSPECTION OF NEEDLE BEARING, MAINTENANCE FOUND THE PROTECTIVE COATING WORN OFF OF BEARING (ROTOR STAR CONTACT POINT) CAUSING DAMAGE TO ROTOR STAR.SDR QR9R2025022100003Bearing · wornDURING INSPECTION OF NEEDLE BEARING, MAINTENANCE FOUND THE PROTECTIVE COATING WORN OFF OF BEARING (ROTOR STAR CONTACT POINT) CAUSING DAMAGE TO ROTOR STAR.SDR QR9R2025022100002Bearing · wornDURING INSPECTION OF NEEDLE BEARING, MAINTENANCE FOUND THE PROTECTIVE COATING WORN OFF OF BEARING (ROTOR STAR CONTACT POINT) CAUSING DAMAGE TO ROTOR STAR.SDR QR9R2025022100001Bearing · wornDURING INSPECTION OF NEEDLE BEARING, MAINTENANCE FOUND THE PROTECTIVE COATING WORN OFF OF BEARING (ROTOR STAR CONTACT POINT) CAUSING DAMAGE TO ROTOR STAR.SDR 2025F00040Bolt · wornTHE UPPER PC LINK BOLT ON ONE MRB BLADE WAS FOUND TO HAVE RED IRON STAINING ON MRH BLADE PITCH CHANGE HORN. PLAY NOT EASILY NOTICED UNLESS THE MRB WAS REPOSITIONED IN ORDER TO ATTEMPT TO UNLOAD THE PRESSURE ON THE PC LINK TO PITCH HORN CONNECTION. LESS THAN 0.SDR QMLA2024113020146Cap · crackedCRACK DISCOVERED ON POST FLIGHT. LOCATED ON MR HUB CAP FLANGE.SDR QMLA2024040220034Hub · wornEN ROUTE TO BASE, DEVIATED TO AIRPORT/COMPANY HANGAR DUE TO EXCESSIVE VERTICAL AND LATERAL VIBRATION IN FORWARD FLIGHT AT AND ABOVE 95KIAS. VIBRATION EXPERIENCED IN CRUISE, CLIMB, AND DESCENT. SUPPLEMENTAL INFORMATION.SDR 2024F00045Dampener · shearedAFTER COMPLETION OF A HOIST AT ~0159 AND IN CRUISE FLIGHT BACK TO THE AIRPORT I NOTICED A SLIGHT CHANGE IN THE AIRCRAFT'S NORMAL VIBRATIONS. I SLOWED THE AIRCRAFT TO SEE IF THERE WAS ANY CHANGE IN THE VIBRATION, AND THERE DIDN'T SEEM TO BE. AT THE TIME WE ALSOSDR 2024FA0000134Grip · crackedA CRACK WAS FOUND ON THE AFT ROTOR HEAD, RED PITCH HOUSING (GRIP) PART NO.:145R2075-16, SERIAL NO.: AM362 LOCATED FROM THE EDGE OF THE PITCH HOUSING DAMPER ATTACHMENT UPPER LUG, TRAVELING PAST THE BUSHING FOR THE DAMPER ATTACHMENT BOLT FURTHER INTO THE PITCH HSDR EVCA20231027002Blade · crackedVAN HORN M/R BLADE INBOARD TRIM TABS CRACKED.SDR EVCA20231018001Bushing · crackedORANGE MR BLADE GRIP ON MR HUB HAS CRACKED BLADE PIN BUSHING.SDR 2023FA0000526Bearing · brinelledIN FLIGHT VIBRATION REPORTED. FOUND SPINDLE BEARINGS BRINELLED. NO OVER SPEEDS REPORTED. SPINDLE & BEARING ASSEMBLIES P/N A158-3, S/N 2636 & S/N 2637 REMOVED FROM MRBS P/N A016-6, S/N 6851 & S/N 6860. MRBS & SPINDLES TSN: 342.3SDR 2023FA0000032Link · crackedDURING INSPECTION FOUND BLUE MAIN ROTOR TENSION LINKED CRACKED. INSTALLED NEW TENSION LINK.SDR QR9R2022111500002Nut · damagedPRIOR TO INSTALLATION, MAINTENANCE DETECTED AN INDENTATION ON BORE OF M/R NUT WHICH PREVENTED BOLT FROM SEATING PROPERLY.SDR 8HBR20221010049Bearing · brinelledPILOT REPORTED VIBRATIONS IN THE CYCLIC DURING AUTO ROTATIONS. THE MAIN ROTOR SPINDLE BEARINGS WERE INSPECTED AND FOUND TO BE BRINELLED. THE SPINDLE BEARINGS WERE REPLACED 34.5 HOURS PRIOR TO THIS EVENT. SEE SDR UNIQUE CONTROL #8HBR20220730046SDR 2022F00248Damper · crackedDURING PREFLIGHT AMT FOUND A CRACK AT THE INBOARD UPPER LUG OF ONE OF THE MAIN ROTOR DAMPERS. THIS WAS DETECTED VISUALLY WITH NO ENHANCEMENTS. DEFECTIVE DAMPER WAS REMOVED AND A SERVICEABLE DAMPER WAS INSTALLED.SDR 2022FA0000013None · brokenMAIN ROTOR HUB PN: 145R2004-20, SN: A5-223 WAS REMOVED FROM N40CU AT 8721.8 TAFT FOR OVERHAUL. DURING PRELIMINARY STEPS FOR DISASSEMBLY, WHILE DRAINING AND REMOVING ALL THE SAFETY WIRE FROM THE GREEN HORIZONTAL HINGE PIN AND OIL HUB FILL CAP, TOP HALF OF HORISDR 2021FA0000272Hub · wornDURING A PREFLIGHT INSPECTION ONE OF THE MAIN ROTOR HUB DROOP STOP FOLLOWER ROLLER SHAFTS WAS FOUND PROTRUDING DOWNWARD FROM THE PLUNGER ASSEMBLY. FURTHER INSPECTION FOUND THAT THE COTTER PIN HAD WORN INSIDE THE ROLLER SHAFT AND HAD LOST ITS RETAINING ABILITY.SDR 2021FA0000291Sleeve · crackedDURING ROTINE M/R BLADE INSTALLION, TECNICIAN FOUND LOWER SLEEVE BLADE PIN BUSH CRACKED.SDR AC2A2021052501Attach Bolt · shearedDURING AIRCRAFT SHUTDOWN THE UPPER ANTI-FLAP STOP RETAINING BOLTS SHEARED AND THE ANTI-FLAP STOP AND A PORTION OF THE SHIM PACK DEPARTED THE MAIN ROTOR HUB ASSEMBLY.SDR AC2A202105250137Bolt · shearedTHE UPPER ANTI-FLAP STOP RETAINING BOLT HEADS SHEARED ALLOWING THE ANTI-FLAP STOP AND HALF OF THE SHIM PACK TO DEPART THE MAIN ROTOR HUB.SDR QR9R20201215002Washer · crackedDURING M/R HEAD REMOVAL, MAINTENANCE FOUND 6 OUT OF 12 M/R HEAD MOUNT SPECIAL WASHERS CRACKED ON INNER RADIUS.SDR AC2A2020101513901Washer · crackedMAIN ROTOR LAG DAMPER OUTBOARD SPECIAL WASHER P/N 3G6220A05052 WAS FOUND CRACKED DURING DAILY VISUAL INSPECTION.SDR QMLA2020100520052Cap · missingIN CRUISE FLIGHT, PILOT AND CREW NOTED A BANG, FOLLOWED BY APPROX 45 SEC TO ONE MINUTE OF VIBRATION. VIBRATION WENT AWAY, AIRCRAFT WAS SAFELY LANDED AT KONA (WINONA MUNICIPAL AIRPORT). UPON POST FLIGHT WALK AROUND, DAMAGE TO YELLOW MR BLADE WAS OBSERVED AND SDR CHIR20209174693Tie Bar · crackedDURING DISASSEMBLY OF 234 FWD ROTOR HEAD ASSEMBLY P/N: 414R2001-18, S/N: A4-1425 ON SWO-060358-20, DISCOVERED GREEN TIE BAR ASSEMBLY HAS CRACK IN UPPER PLATE IN OUTER CIRCUMFERENCE OF OUTBOARD LUG AREA.SDR JYDR20200625174Hinge · crackedMAIN ROTOR HEAD WAS BEING OVERHAULED. DURING OVERHAUL MAGNETIC PARTICLE INSPECTION TWO VERTICAL HINGES HAD CRACKS IN PIN HOLES. VERTICAL HINGE SN F-1608 AND F-1768.SDR JYDR20200408092Hinge · crackedDURING OVERHAUL, AFTER REACHING TBO A CRACK WAS FOUND IN THE EAR DURING NDT PROCEDURE. PART SUBMITTED TO ENGINEERING FOR EVALUATION.SDR RV1R2020010800019Elastomer · failedFAILED ELASTOMER FOUND DURING REMOVAL FOR MAST SEAL REPLACEMENT. THIS PART CAN ONLY BE INSPECTED WITH MR HUB DISASSEMBLED AND THE ONLY REQUIREMENT FOR THIS INSPECTION IS LOCATED IN THE 2500 HOUR AIRFRAME INSPECTION. THE AIRCRAFT IN QUESTION ONLY HAS 1800 HOUSDR RV1R20191002466Bearing · separatedCOMPLETE SEPERATION OF THE PIVOT BEARING ELASTOMER FROM THE BASE. NOT VISABLE WITH THE BLADES INSTALLED, TOTAL FAIURE HAD NOT TAKEN PLACE 7.0 HOURS AGO.THIS ITEM HAS A FIRST INSPECTION INTERVAL AT 2500 HOURS, AIRCRAFT ONLY HAS 1800 BUT IS 13 + YEARS OLD RECOMESDR CHIR201909094132Sync Shaft · crackedDURING A ROUTINE FLUORESENT PENETRANT INSPECTION, (PART OF A SCHEDULED OVERHAUL, DOCUMENTED ON SWO-049059-19) NDT TECH. FOUND ONE CRACK ON THE SYNC SHAFT SUB-ASSEMBLY ADAPTER. DISC-203256-19 HAS BEEN CREATED TO CAPTURE FURTHER MAINTENANCE.SDR CA190619013Starflex · cracked(CAN) DURING VISUAL INSPECTION THE AME NOTICED A CRACK IN THE ADHESIVE BEAD OF THE STARFLEX ARM END BUSHING. FURTHER INVESTIGATION USING SOAP AND WATER (TO CREATE BUBBLES) CONFIRMED THAT THE END BUSHING WAS MOVING WHEN A LEADING/LAGGING FORCE IS APPLIED TO THESDR QMLA2019061019053Cover · crackedDISCOVERED CRACK ON MAIN ROTOR HUB ANTI VIBRATOR. CRACK WAS ON SIDE BRACKET COVERING SPRING. FOUND DURING AIRWORTHINESS CHECK.SDR BIGR20190208001Bearing · crackedWEAR OF TEETERING BUSHING RESULTING IN CRACKING OF TEETERING BEARING ON OPPOSITE SIDE OF CHORD WEIGHT ARM WAS FOUND DURING MRH BALANCE.SDR ALGA2018112747168Bearing · separatedDURING DAILY SERVICE CHECK MAIN ROTOR RETENTION BEARING SEPARATION WAS NOTED. UPON DISASSEMBLY OF SPINDLE IT WAS NOTED THAT CONTACT HAD BEEN MADE WITH MAIN ROTOR HUB AND SPINDLE NUTSDR CHIA201809243519Housing · crackedWHILE UNDERGOING SCHEDULED MAINTENANCE, UT INSPECTION OF FORWARD PITCH HOUSING ASSEMBLY DISCLOSED A REJECT-ABLE INDICATION OF THE UPPER VERTICAL BEARING LINER BORE. CONFIRMED INDICATION PITCH HOUSING P/N 145R2075-11, S/N C1E0003 HAS BEEN REMOVED FROM SERVICE ASDR QMLA2018071618084Hub · crackedWHILE PERFORMING AIRWORTHINESS CHECK OF THE MRH, IT WAS NOTICED A FINE LINE WITH SOME WEAR MUD. FURTHER INSPECTION LED TO THE CONFIRMATION OF A CRACK. APPROXIMATELY 1" LONG.SDR 7AJA2018082002Rivet · shearedFOUND THREE SHEARED RIVETS ON ANTI-VIBRATION ASSEMBLY. DURING REMOVAL FOR 600HR INSPECTION. ALL PARTS ARE CAPTURED AND THERE WAS NO RISK OF DEPARTURE IN FLIGHT BUT THE FAILURE HAS NOT BEEN OBSERVED AND IS UNCOMMON. AVA BASE WAS REPLACED WITH A NEW PART AND SDR QMLA2018061418071Damper · crackedDURING INSPECTION, FOUND THE MAIN ROTOR DAMPER ON THE YELLOW BLADE WAS CRACKED ALONG INBOARD MOUNTING FLANGE, COMPLETELY THROUGH THE UPPER FORK AND STARTING ON ONE END OF LOWER FORK. FOUND METAL FLAKES AROUND UPPER FORK. AFTER REMOVAL OF THE DAMPER, THE UPPSDR JYDR20180524141Spacer · crackedALL SIX SPACERS WERE FOUND CRACKED. AFTER VISUAL INDICATIONS WERE FOUND, FPI CONFIRMED THEY WERE CRACKED.SDR 7AJA20180517001Bushing · unsecureDURING THE 600 HOUR INSPECTION, FOUND A LOOSE BUSHING ON ONE OF THE STARFLEX ARMS. WHILE PERFORMING THE INSPECTION, MECHANIC GRABBED BUSHING AND FELT IT CLICKING ON THE ARM WHICH INDICATES A LOOSE CONDITION.SDR CHIR11820183122Bearing · galledAFT ROTOR HUB WAS REMOVED. ON DISASSEMBLY IT WAS REVEALED THAT THE YELLOW LAG BEARING WAS GALLED.SDR CA180104001Damper · delaminated(CAN) REPLACEMENT MAIN ROTOR DAMPER RECEIVED FROM A SUPPLIER. FORM 8130 INDICATED STATUS: `OVERHAULED` (COPY OF 8130 ATTACHED). UPON CLOSER INSPECTION, BEARING WAS FOUND TO BE DE-LAMINATED (SEE ATTACHED PHOTOS SHOWING CENTER BUSING DE-LAMINATED FROM ELASTOME
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