JASC 6300

Service difficulty reports · 637

Reports filed under 6300 · Main Rotor Drive System, 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 = '6300'
  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.

SDR QMLA2026091420065Chip Detector · inoperativeXMSN CHIP DETECTOR INOP CAME ON TWICE IN FLIGHT AND WENT OUT BEFORE LANDING, DURING RETURN LEG TO BASE, AFTER HALFWAY POINT. INSPECTED LH TRANSMISSION CHIP DETECTOR, VERIFIED CONDITION AND SECURITY. COULD NOT DUPLICATE.Sep 14, 2026 · N429HF · Bell 429SDR 2026FA0000648Coupling · crackedCRACKED AROUND METAL ON COUPLINGAug 17, 2026 · N4247V · Skrsky S58JTSDR 8HBR20260830086Sprag Clutch · damagedPILOTS FOUND A TEAR IN ONE OF THE DRIVE V-BELTS. UPON INSPECTION OF THE CLUTCH ASSEMBLY, THE UPPER SHEAVE HAD A SHARP STEP WORN INTO IT. AFTER DISASSEMBLY OF THE SPRAG CLUTCH DAMAGE WAS FOUND ON THE CLUTCH AND ONE OF THE CLUTCH SHAFT BEARINGS.Aug 10, 2026 · N924SH · Robsin R22BETASDR EVCA202607011Warning Light · false activationDEPARTED HOSPITAL, XSMN CHIP LIGHT ILLUMINATED APPROX 2 MIN AFTER DEPARTURE. ABORTED FLIGHT, CONDUCTED PRECAUTIONARY EMERGENCY LANDING AT AIRPORT. REMOVED AND INSPECTED UPPER AND LOWER TRANS AND FREE WHEELING CHIP DETECTORS, REMOVED AND CHECKED FILTER, AND FOUJul 1, 2026 · N728AE · Bell 407SDR QMLA2026032720024Warning Message · illuminatedTRANSMISSION CHIP CAUTION ILLUMINATED MULTIPLE TIMES WHILE IN CRUISE FLIGHT. CAUTION REMAINED ON FOR LAST 3 MINUTES OF FLIGHT.Mar 27, 2026 · N819LF · Urocop EC135P2SDR 2026FA0000086Sprag Assy · slippedTHE REPAIR STATION REPORTED COMPLETION OF AN OVERHAUL ON AN OVERRUNNING CLUTCH ASSY, OVERHAUL RECORDS INDICATE THAT BEARING P/N 369F5457-1 WAS INSTALLED IN LIEU OF THE SPECIFIED 369F5457-3. OVERHAUL DOCUMENTATION FURTHER INDICATES THAT POST OVERHAUL RUN-IN TESFeb 5, 2026 · N745B · Doug 600NSDR 2025FA0000701Sheave · wornUPPER ANODIZED SHEAVE P/N A170-1 WORN. REQUIRES REPLACEMENT OF CLUTCH SHAFT ASSEMBLY P/N A018-1Oct 10, 2025 · N115LE · Robsin R22BETAIISDR 2025FA0000700Sheave · wornUPPER ANODIZED SHEAVE WORN. REQUIRES REPLACEMENT OF CLUTCH SHAFT ASSEMBLY.Oct 10, 2025 · N150LE · Robsin R22BETAIISDR HEEA202501070001Gearbox · chippedAFTER LEVEL OFF AT 6000' OUTBOUND, APPROXIMATELY 15NM SOUTH OF HOUMA, MGB CHIP CAUTION CAME ON. PERFORMED "CHIP PULSE" PER THE CHECKLIST WITH NO EFFECT. RETURNED TO HOUMA AND CONTACTED MAINTENANCE.Jan 2, 2025 · N393PH · Bolkms BK117D2EUROSDR 2025FA0000698Sheave · wornUPPER ANODIZED SHEAVE WORN. REQUIRES REPLACEMENT OF CLUTCH SHAFT ASSEMBLY.Sep 24, 2024 · N3040K · Robsin R22BETAIISDR 2024FA0000495Clutch · making metalDURING AIRCRAFT INSPECTION AN AIRCRAFT MECHANIC QUESTIONED DISCOLORING OF THE OVERRUNNING CLUTCH OUTPUT BEARING GREASE. THE BEARING DID NOT DEMONSTRATE ANY ABNORMAL PLAY OR ROUGHNESS. THE CLUTCH HAD THE CORRECT AMOUNT OF OIL INSTALLED. IT WAS DECIDED TO DISASJul 9, 2024 · N842JH · Hughes 369ESDR M3XA2024070130009Transmission · making metalPILOT REPORTED A MAIN XMSN CHIP LIGHT IN FLIGHT AND PERFORMED A PRECAUTIONARY LANDING IN MANHATTAN, KS WITHOUT INCIDENT. MECHANIC INSPECTED ALL 3 CHIP DETECTORS AND FOUND NOTHING VISIBLE ON THE CHIP DETECTORS. XMSN IS CURRENTLY IN PROCESS OF REPLACEMENT DUE Jun 30, 2024 · N516MT · Bell 407SDR M3XA20240629008Transmission · making metalPILOT REPORTED A MAIN XMSN CHIP LIGHT IN FLIGHT AND PERFORMED A PRECAUTIONARY LANDING WITHOUT INCIDENT. MECHANIC INSPECTED ALL 3 CHIP DETECTORS AND FOUND ONLY SOME FUZZ ON THE LOWER SUMP CHIP DETECTOR. PERFORMED A SERVICEABILITY CHECK AND MOC WITH NO FURTHJun 29, 2024 · N516MT · Bell 407SDR QMLA2024010320001Unknown · unknownXMSN CHIP LIGHT ILLUMINATED WHILE IN CRUISE FLIGHT. I CHECKED THE TRANSMISSION OIL PRESSURE WHICH SEEMED TO BE FLUCTUATING +/- 0.2 PSI. I WAS LESS THAN A MILE FROM SPOKANE INTERNATIONAL AIRPORT AND, GIVEN THE INDICATIONS I HAD, DECLARED AN EMERGENCY AND LANDEDJan 2, 2024 · N958AL · Urocop EC135T2SDR 2023FA122200001Transmission · installedDURING A 135 TOUR OPERATION EXPERIENCED A MAIN ROTOR TRANSMISSION CHIP LIGHT RESULTING IN A PRECAUTIONARY LANDING. ANOTHER HELICOPTER WAS BROUGHT IN WITH MAINTENANCE PERSONNEL AND BROUGHT ALL PASSENGERS BACK TO THE AIRPORT. THE MAIN ROTOR CHIP DETECTORS WERE IDec 19, 2023 · N716KV · Hughes 369ESDR QMLA2023120520111Transmitter · unknownDURING RETURN FLIGHT FROM BAYSTATE HOSPITAL BACK TO BASE, WHILE OVER BRADLEY AIRPORT (KBDL) THE RIGHT-SIDE MAIN ROTOR TRANSMISSION PRESSURE INDICATION DROPPED TO 0. LANDING WAS PERFORMED AT KBDL MANAGEMENT, OCC, AND MAINT. WHERE THEN NOTIFIED.Dec 2, 2023 · N145HH · Bolkms BK117C2SDR YV3R2023120100591Actuator · defectiveCUSTOMER REPORTED ACTUATOR ASSEMBLY P/N: A051-1 DOES NOT RETRACT WHEN SWITCH IS TURNED TO THE OFF POSITION AFTER FLIGHT.Nov 20, 2023 · Robsin R22BETAIISDR 2025FA0000699Sheave · wornUPPER ANODIZED SHEAVE P/N A170-1 WORN. REQUIRES REPLACEMENT OF CLUTCH SHAFT ASSEMBLY P/N A018-1Oct 4, 2023 · N552LE · Robsin R22BETAIISDR 2023F00338Link · unknownPILOT REPORTED HEARING A LOUD (THUMP NOISE) WHEN THE AIRCRAFT WAS PICKED UP TO A HOVER DURING REPOSITIONING FROM ONE HELI-PAD TO ANOTHER @ KJRB OPERATIONS. WHEN THE TECH TEAM WAS DISPATCHED, THEY DISCOVERED THE BOTTOM AFT LH LIFT LINK HAVING EXCESSIVE PLAY. Aug 29, 2023 · N53ZA · Bell 206L4SDR YV3R2023092900579Actuator · defectiveCUSTOMER REPORTED ACTUATOR ASSEMBLY P/N: C051-2 ONLY HAD ONE TENSION PLATE WORKING.Aug 25, 2023 · Robsin R44RAVENIISDR 2023FA0000664Bearing Race · crackedF-DUTCH OUTER RACO PIN 369F5453-1 SIN 5640-0834 WAS ROTUMED FROM NDE PROFESSIONALS. INC. AS REJECTED DUO TO THREE MARKED CRACKS. ONE RUNNLNG THE LENGTH OF THE SPLINE.Aug 24, 2023 · N530WH · Hughes 369FSDR QR9R2023080900007Transducer · failedAFTER 2 HOURS INTO FLIGHT #1 TRANSMISSION PRESSURE INDICATION WENT TO .7 THEN TO NORMAL (CENTER OF BLACK), THEN WENT TO ZERO THEN BACK TO NORMAL. REDUCTION OF PRESSURE AND LANDING HAD NO CHANGE. REDUCING TO IDLE THEN TO 100% YIELDED NO CHANGE OF INDICATIONS. AAug 9, 2023 · Bolkms BK117C2SDR QMLA2023080620058Transmission · unknownTRANSMISSION CHIP LIGHT ILLUMINATED IN FLIGHT. FOUND INSIGNIFICANT DEBRIS, AS DEFIED IN BELL MM, CHAPTER 63.Aug 5, 2023 · N408LN · Bell 407SDR QMLA2023072520055Transmission · making metalXMSN CHIP LIGHT CAME ON DURING CRUISE FLIGHT.Jul 25, 2023 · N223AM · Bell 407SDR 8HBR20230730053Seal · faulty+DURING A 100 HOUR INSPECTION IT WAS FOUND THAT THE AFT SPRAG CLUTCH SEAL WAS MIGRATING OUT OF THE RETAINER HOUSING.Jun 5, 2023 · N924SH · Robsin R22SDR YV3R2023071000575Clutch · faultyCUSTOMER REPORTED HEAVY YAW MOVEMENTS WITH LOUD NOISES, C018-4 CLUTCH ASSEMBLY HAS ALUMINUM AND STEEL PARTICLES IN OIL.May 30, 2023 · Robsin R44SDR YV3R2023061400571Switch · defectiveCUSTOMER REPORTED SWITCHES ASSEMBLY P/N: C053-2 HAS LOOSE CONNECTIONS.May 19, 2023 · Robsin R44SDR YV3R2023061400569Actuator · defectiveCUSTOMER REPORTED ACTUATOR ASSEMBLY P/N: A051-1 STOPS AND STARTS WHEN UNDER LOW COMPRESSION.May 18, 2023 · N938SH · Robsin R22BETAIISDR 2023F00149Module · chippedAPPROXIMATELY 18 MILES FROM KHUM THE #2 INPUT CHIP LIGHT ILLUMINATED. EMERGENCY PROCEDURES WERE PERFORMED AND WE CONTINUED TO RWY 18. WE PERFORMED A ROLL ON LANDING AND TAXIED TO THE LINE.May 18, 2023 · N950PH · Skrsky S92ASDR YV3R2023051000566Actuator · defectiveCUSTOMER REPORTED ACTUATOR ASSEMBLY P/N: A051-1 SPRINGS ARE NOT WORKING.Apr 28, 2023 · Robsin R22BETAIISDR QMLA2023042520033Transmission · unknownWHILE IN CRUISE FLIGHT, TRANSMISSION CHIP DETECTOR LIGHT ILLUMINATED ALONG WITH A CAUTION LIGHT AND AUDIBLE ALERT.LANDED IMMEDIATELY AND MX INSPECTED CHIP DETECTORS. FOUND FERROUS METAL FLAKE MATERIAL ON MGB CHIP PLUG (LOWER) AND DETERMINED TO BE SIGN OF NORMAApr 24, 2023 · N208AM · Bell 407SDR YV3R2023042700556Actuator · defectiveCUSTOMER REPORTED ACTUATOR ASSEMBLY P/N: A051-1 OPERATES INTERMITTENTLY.Apr 5, 2023 · N476AT · Robsin R22BETAIISDR QMLA2023031520014V-Belt · unknownPL DUE TO ILLUMINATION OF SERVO AND HYD2 CAUTION LIGHT. CAUTION LIGHTS ILLUMINATED WHILE AT CRUISE FLIGHT. PL CONDUCTED TO THE NEAREST AIRPORT. POST FLIGHT INSPECTION REVEALED THE BELT FOR THE BELT-DRIVEN HYDRAULIC PUMP HAD SEPARATED.Mar 15, 2023 · N240SH · Urocop EC130T2SDR HDNA20230222001Swashplate · crackedDURING THE PERFORMANCE OF A DAILY AIRWORTHINESS CHECK THE MAIN ROTOR SWASHPLATE SUPPORT WAS FOUND CRACKED. CRACKS ARE NOT ALLOWED ON THIS COMPONENT.Feb 21, 2023 · N117CH · Bolkms BK117B1SDR 2023F00059Transmission · chippedDURING CRUISE, TRANSMISSION CHIP LIGHT ILLUMINATED. AT APPROXIMATELY 1310 IN CRUISE FLIGHT AT 1250FT ENROUTE TO EI11H, THE TRANSMISSION CHIP LIGHT ILLUMINATED. THE STUDENT FLYING RELINQUISHED THE CONTROLS TO ME. I MADE A MAYDAY CALL AND DECLARED AN EMERGENCY TFeb 18, 2023 · N418PH · Bell 407SDR YV3R2023031500552Actuator · defectiveCUSTOMER REPORTED ACTUATOR ASSEMBLY P/N: C051-2 FAILED SWITCH TEST.Feb 16, 2023 · Robsin R44RAVENIISDR QR9R2023020700002Transmitter · warning lightUPON STARTING THE #1 ENGINE, #1 TRANSMISSION OIL PRESSURE INDICATED 0. #2 OIL PRESSURE WAS 1.4. REMOVED AND REPLACED #1 TRANSMISSION OIL PRESSURE TRANSMITTER IAW AMM 63-41-00, 4-4. RUNUP COMPLETED IAW AMM 05-60-00, 6-12. TRANSMISSION PRESSURE NORMAL.Feb 7, 2023 · Bolkms BK117C2SDR QMLA2023011120003Friction Ring · damagedFOUND ON PRE-FLIGHT SUSPECT MOVEMENT BETWEEN SWASHPLATE UNI-BALL AND MAST AT TEFLON OUTER FRICTION RING. THE CORRECTIVE ACTION TAKEN BY THE MECHANIC ON DUTY AT THE TIME WAS “REMOVED TORN PEEL SHIM FROM TOP OF SWASHPLATE ASSEMBLY. REASSEMBLED TOP OF ROTATING RJan 6, 2023 · N493LG · Snias AS350B3SDR YV3R2022092300541Sheave · defectiveCUSTOMER REPORTED SHEAVE (LOWER) P/N: A493-1 HAS BUBBLING UNDER METALIZING MATERIAL.Sep 15, 2022 · Robsin R22BETAIISDR QMLA2022082920059None · noneDURING CRUISE FLT M/T CHIP CAUTION ILLUMINATED. 30 SECONDS LATER BATT DISCONNECT CAUTION ILLUMINATED. AIRCRAFT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE ARRIVED, REMOVED / INSPECTED / CLEANED M/T CHIP PLUG, FOUND CATEGORY "C" CHIP. SAVED CHIP AND OIL ANALYAug 26, 2022 · N916LH · Airbus A300*SDR QR9R20220801001Filter · damagedAFTER RECEIVING PART FROM SUPPLY AND PRIOR TO INSTALLATION, MAINTENANCE DETECTED THE FILTER ASSEMBLY MATING SURFACE WAS DAMAGED BEYOND LIMITS.Aug 1, 2022 · Bolkms BK117C2SDR YV3R2022091300534Actuator · defectiveCUSTOMER REPORTED ACTUATOR ASSEMBLY P/N: A051-1 WAS INTERMITTENT IN OPERATION.Jul 28, 2022 · Robsin R22BETAIISDR EVCA202207220002Mast · corrodedCORROSION FOUND INSIDE MAST DURING 12 MONTH INSPECTIONJul 22, 2022 · N726AE · Bell 407SDR 8HBR20220722045Seal · faultyPILOT FOUND THE AFT SPRAG CLUTCH SEAL MIGRATED OUT OF THE RETAINER DURING HIS POST FLIGHT INSPECTION.Jul 20, 2022 · N8340S · Robsin R22BETASDR EVCA202207220001Mast · corrodedCORROSION FOUND INSIDE MAST DURING 12 MONTH INSPECTIONJul 20, 2022 · N715AE · Bell 407SDR EVCA2022072100001Mast · corrodedCORROSION FOUND INSIDE MAST ON 12 MONTH INSPECTIONJul 20, 2022 · N196AE · Bell 407SDR QMLA2022071220040Gearbox · warning lightWE WERE RETURNING TO BASE AFTER COMPLETING AN INTERFACILITY TRANSFER. WE WERE FLYING ALONG, MINDING OUR OWN BUSINESS WHEN THE MGB CHIP LIGHT ILLUMINATED. I IMMEDIATELY STARTED LOOKING FOR A SAFE PLACE TO CONDUCT A PRECAUTIONARY LANDING. FOUND AN OPEN LIT AREA Jul 11, 2022 · N563AM · Snias AS350B2SDR QMLA2022051620028None · usedINTERMITTENT TRANSMISSION CHIP LIGHT. TRANSMISSION CHANGED OUT AT ACFT TT 2605+37 ON DATE 4/21/2022. INSPECTED CHIP DECTETECTORS FOUND SMALL A SLIVER OF METAL ON LWR CHIP DETECTOR. CLEANED ALL CHIP DETECTORS. DRAINED AND RESERVICED TRANSMISSION FUILDS. REMOVEDMay 13, 2022 · N357AM · Bell 407SDR QR9R20220420001Brake Pads · damagedAIRCRAFT RESTRICTED FROM USE OF ROTOR BRAKE DUE TO ROTOR BRAKE TOOK EXCESSIVE AMOUNT OF TIME, 3 MINUTES (25-50 SECONDS NORMAL STOPPING TIME 05-60-00,6-1) TO STOP MAIN ROTOR SYSTEM. UPON INVESTIGATION FOUND PIECES OF ROTOR BRAKE PADS LYING ON DECK, BRAKE DISC GApr 20, 2022 · Bolkms BK117C2SDR 2022F00174Drive Gear · crushedDURING A GROUND RUN IN PREPARATION FOR A FERRY FLIGHT, THE PILOT FELT A SIGNIFICANT VIBRATION IN THE AIRFRAME ACCOMPANIED BY AN ABNORMAL NOISE AND MGB CHIP CAUTION LIGHT. THE PILOT PERFORMED A NORMAL ENGINE SHUTDOWN AND INFORMED MAINTENANCE PERSONNEL. UPON RMar 31, 2022 · N352EV · Snias AS350B2
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