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.
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
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 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.SDR 2026FA0000648Coupling · crackedCRACKED AROUND METAL ON COUPLINGSDR 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.SDR 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 FOUSDR QMLA2026032720024Warning Message · illuminatedTRANSMISSION CHIP CAUTION ILLUMINATED MULTIPLE TIMES WHILE IN CRUISE FLIGHT. CAUTION REMAINED ON FOR LAST 3 MINUTES OF FLIGHT.SDR 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 TESSDR 2025FA0000701Sheave · wornUPPER ANODIZED SHEAVE P/N A170-1 WORN. REQUIRES REPLACEMENT OF CLUTCH SHAFT ASSEMBLY P/N A018-1SDR 2025FA0000700Sheave · wornUPPER ANODIZED SHEAVE WORN. REQUIRES REPLACEMENT OF CLUTCH SHAFT ASSEMBLY.SDR 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.SDR 2025FA0000698Sheave · wornUPPER ANODIZED SHEAVE WORN. REQUIRES REPLACEMENT OF CLUTCH SHAFT ASSEMBLY.SDR 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 DISASSDR 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 SDR 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 FURTHSDR 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 LANDEDSDR 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 ISDR 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.SDR YV3R2023120100591Actuator · defectiveCUSTOMER REPORTED ACTUATOR ASSEMBLY P/N: A051-1 DOES NOT RETRACT WHEN SWITCH IS TURNED TO THE OFF POSITION AFTER FLIGHT.SDR 2025FA0000699Sheave · wornUPPER ANODIZED SHEAVE P/N A170-1 WORN. REQUIRES REPLACEMENT OF CLUTCH SHAFT ASSEMBLY P/N A018-1SDR 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. SDR YV3R2023092900579Actuator · defectiveCUSTOMER REPORTED ACTUATOR ASSEMBLY P/N: C051-2 ONLY HAD ONE TENSION PLATE WORKING.SDR 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.SDR 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. ASDR QMLA2023080620058Transmission · unknownTRANSMISSION CHIP LIGHT ILLUMINATED IN FLIGHT. FOUND INSIGNIFICANT DEBRIS, AS DEFIED IN BELL MM, CHAPTER 63.SDR QMLA2023072520055Transmission · making metalXMSN CHIP LIGHT CAME ON DURING CRUISE FLIGHT.SDR 8HBR20230730053Seal · faulty+DURING A 100 HOUR INSPECTION IT WAS FOUND THAT THE AFT SPRAG CLUTCH SEAL WAS MIGRATING OUT OF THE RETAINER HOUSING.SDR YV3R2023071000575Clutch · faultyCUSTOMER REPORTED HEAVY YAW MOVEMENTS WITH LOUD NOISES, C018-4 CLUTCH ASSEMBLY HAS ALUMINUM AND STEEL PARTICLES IN OIL.SDR YV3R2023061400571Switch · defectiveCUSTOMER REPORTED SWITCHES ASSEMBLY P/N: C053-2 HAS LOOSE CONNECTIONS.SDR YV3R2023061400569Actuator · defectiveCUSTOMER REPORTED ACTUATOR ASSEMBLY P/N: A051-1 STOPS AND STARTS WHEN UNDER LOW COMPRESSION.SDR 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.SDR YV3R2023051000566Actuator · defectiveCUSTOMER REPORTED ACTUATOR ASSEMBLY P/N: A051-1 SPRINGS ARE NOT WORKING.SDR 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 NORMASDR YV3R2023042700556Actuator · defectiveCUSTOMER REPORTED ACTUATOR ASSEMBLY P/N: A051-1 OPERATES INTERMITTENTLY.SDR 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.SDR HDNA20230222001Swashplate · crackedDURING THE PERFORMANCE OF A DAILY AIRWORTHINESS CHECK THE MAIN ROTOR SWASHPLATE SUPPORT WAS FOUND CRACKED. CRACKS ARE NOT ALLOWED ON THIS COMPONENT.SDR 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 TSDR YV3R2023031500552Actuator · defectiveCUSTOMER REPORTED ACTUATOR ASSEMBLY P/N: C051-2 FAILED SWITCH TEST.SDR 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.SDR 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 RSDR YV3R2022092300541Sheave · defectiveCUSTOMER REPORTED SHEAVE (LOWER) P/N: A493-1 HAS BUBBLING UNDER METALIZING MATERIAL.SDR 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 ANALYSDR QR9R20220801001Filter · damagedAFTER RECEIVING PART FROM SUPPLY AND PRIOR TO INSTALLATION, MAINTENANCE DETECTED THE FILTER ASSEMBLY MATING SURFACE WAS DAMAGED BEYOND LIMITS.SDR YV3R2022091300534Actuator · defectiveCUSTOMER REPORTED ACTUATOR ASSEMBLY P/N: A051-1 WAS INTERMITTENT IN OPERATION.SDR EVCA202207220002Mast · corrodedCORROSION FOUND INSIDE MAST DURING 12 MONTH INSPECTIONSDR 8HBR20220722045Seal · faultyPILOT FOUND THE AFT SPRAG CLUTCH SEAL MIGRATED OUT OF THE RETAINER DURING HIS POST FLIGHT INSPECTION.SDR EVCA202207220001Mast · corrodedCORROSION FOUND INSIDE MAST DURING 12 MONTH INSPECTIONSDR EVCA2022072100001Mast · corrodedCORROSION FOUND INSIDE MAST ON 12 MONTH INSPECTIONSDR 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 SDR 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. REMOVEDSDR 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 GSDR 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 R
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