JASC 6310
Service difficulty reports · 772
Reports filed under 6310 · Engine/Transmission Coupling, 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 = '6310' 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 = '6310' 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 8HBR20240509069Bearing · brinelledBRINELLED SPINDLE BEARINGS DISCOVERED APPROX 99.3 HOURS SINCE NEW, FOUND DURING ROUTINE MAINTENANCE INSPECTION.SDR 2024FA0000554Clutch · making metalDURING A SCHEDULED 100 HOUR MAINTENANCE INSPECTION ON THE AIRCRAFT. THE MECHANIC QUESTIONED THE DARK BURNT APPEARANCE OF THE GREASE IN THE • BEARING, OVERRUNNING CLUTCH BALL OUTPUT. PER OPERATOR REQUEST THE CLUTCH ASSEMBLY WAS DISASSEMBLED AND A SIGNIFICANT AMSDR EVCA09252023Support · damagedPERFORMED TRANSMISSION SHAFT BEARING SUPPORT 10HR REOCCURRING AD 2022-01-05, DISCOVERED SHEARED RIVET AND CRACKS ON REAR TRANSMISSION SHAFT BEARING SUPPORT.SDR 2024FA0000205Clutch Actuator · brokenAFTER PIC LANDED N31471 WITH THE COLLECTIVE FULL DOWN, THE CLUTCH LIGHT ILLUMINATED. AFTER LIGHT HAD BEEN ON FOR 10 SECONDS, PIC PULLED THE CLUTCH CIRCUIT BREAKER IN ACCORDANCE WITH THE R44 POH AND ROLLED DOWN THE THROTTLE. PIC THEN SHUT DOWN THE HELICOPTER IASDR 2023FA0000214Sheave · unknownBUMPS OR BUBBLES WERE FOUND IN THE UPPER SHEAVE GROOVES. THESE SEEM TO BE CORROSION POCKETS BETWEEN THE METALIZED PLATING AND THE CAST ALUMINUM BASE. IF THIS CONTINUED IN SERVICE, ACCELERATED DRIVE BELT WEAR WILL OCCUR.SDR 2022FA0000568Sprag Clutch · brokenINITIAL CLUTCH WAS REMOVED FOR A DIFFERENT DISCREPANCY AND WAS FOUND TO HAVE A BAD SPRAG CLUTCH 300 HOURS AFTER OVERHAUL. NEXT CLUTCH WAS FOUND TO HAVE A BAD SPRAG CLUTCH 82 HOURS AFTER OVERHAUL. NEXT CLUTCH WAS FOUND TO HAVE A BAD SPRAG CLUTCH 0 TSO .SDR CHIA5149Transmission · overtempWE JUST COMPLETED ABOUT 2 HOURS ON A FIRE FIGHTING MISSION 15NM WEST OF BECIN FOREST SERVICE BASE AND WERE RETURNING TO BECIN BASE FOR FUEL. ABOUT HALF WAY BACK TO BASE THE XMSN HOT LIGHT ILLUMINATED ON THE ANNUNCIATER PANEL. WE PULLED OUT THE CHECK LIST AND LSDR 2022F00242Freewheel Unit · failedTHE FREEWHEELING UNIT WAS FAILING CAUSING THE MAIN GEARBOX CHIP LIGHT TO INTERMITTENTLY ILLUMINATE. WHEN THE CHIP DETECTORS WERE INSPECTED THERE WAS NO METAL NOTED. NOTHING APPEARED IN THE OIL FILTER OR SCREEN DURING THE SERVICEABILITY CHECK.SDR JYDR20220120016None · brokenWHILE LANDING FROM A HOVER, AS THE WHEELS TOUCHED DOWN A VIBRATION WAS FELT. PILOTS PULLED EACH ENGINE BACK SEPARATELY AND FOUND VIBRATION COMING FROM #2 ENGINE. AFTER AIRCRAFT SECURE MECHANICS FOUND A PIECE MISSING FROM #2 ENGINE TO MAIN GEAR BOX DRIVE SHAFT SDR QMLA2021052420025Transmission · ratchetingON TAKEOFF PILOT HEARD A VERY LOUD "BANG" INSIDE THE CABIN. PILOT LOWERED POWER AND SET THE AIRCRAFT BACK DOWN WHERE IT STARTED FROM. DURING INSPECTION BY MAINTENANCE IT WAS FOUND THAT UNDER THE CORRECT CONDITIONS, ROTATING THE TAIL ROTOR CAUSING ROTATION OFSDR JYDR20201013282Attach Bolt · brokenPILOTS SUDDENLY FELT A VIBRATION AND HEARD A HOWLING NOISE. THEY RETURNED TO THE LANDING SITE AND SHUT DOWN. AT INSPECTION, MAINTENANCE FOUND 1 OF 3 NAS628-15 BOLT BROKEN IN HALF ON THE NR 2 HIGH SPEED SHAFT ON THE FORWARD END, WHERE IT ATTACHES TO THE FREE SDR N3XR20200827001Gearbox · contaminatedDURING A ROUTINE INSPECTION, THE GEAR BOX MAGNETIC PLUG CONTAINED LARGE PIECES OF METAL. THE GEAR BOX WAS REPLACED WITH A NEW UNIT.SDR N3XR20200827002Gearbox · making metalDURING A ROUTINE INSPECTION, SEVERAL LARGE PARTICLES WERE FOUND ON THE GEARBOX MAGNETIC DRAIN PLUG. THE GEARBOX WAS REPLACED WITH A NEW UNIT.SDR 2020FA0000319Sprag Clutch · abnormalOWNER COMPLAINED OF POWER LOSS DURING LEVEL OFF AND FLARE AFTER DESCENT. HE INSISTED THERE WAS NO "NEEDLE SPLIT". IN SPITE OF THAT, I SUSPECTED AN ISSUE WITH THE OVERRUNNING (SPRAG) CLUTCH. I FLIGHT TESTED AND ALL APPEARED NORMAL. AFTER CHECKING EVERYTHING THASDR N3XR20200827003Gearbox · making metalDURINE A ROUTINE INSPECTION, LARGE PIECES OF METAL WERE FOUND ON THE ENGINE GEAR BOX MAGNETIC PLUG. THE GEARBOX WAS REPLACED WITH A NEW UNIT.SDR YV3R2019021300022Clutch Actuator · malfunctionedCUSTOMER REPORTED CLUTCH ACTUATOR MOTOR IS SURGING AND RUNNING VERY SLOW.SDR 2AFA20170719001Clutch Actuator · crackedFAILURE OF ACTUATOR ASSEMBLY. THE BRACKETS DISCONNECTING THAT CAUSED THE UPPER BREAK.” MR. WEBSTER ALSO STATED THIS WAS A “MAINTENANCE ISSUE THAT SHOULD HAVE BEEN ADDRESSED. WE HAVE A SERVICE BULLETIN OUT JUST FOR THAT.” HOWEVER, UNDER THE CURRENT SERVICESDR EVGR201611080001Sprag Assy · making metalDURING THE 100 HOUR INSPECTION, THE CLUTCH LUBRICATION INSPECTION WAS PERFORMED PER ROBINSON MM 7.210. WHEN THE OIL WAS INSPECTED SEVERAL PIECES OF METAL WERE FOUND. ROBINSON WAS CONTACTED AND THE CLUTCH ASSEMBLY WAS REMOVED FROM THE AIRCRAFT AND AN OVERHASDR H44R2016051300001Cover Plate · wornDURING REPLACEMENT OF THE OVER RUNNING CLUTCH, A SPECIAL TOOL IS REQUIRED TO TORQUE THE INTERNAL WRENCHED RETENTION NUT INSIDE THE PTO SHAFT OF THE ENGINE. WHEN THE TOOL WAS WITHDRAWN PART OF IT REMAINED STUCK IN THE NUT, THE TECH DID NOT REALIZE THAT THIS HASDR CA151021003Sprag Clutch · cracked(CAN) FOUND CRACKED SPRAG CLUTCH DURING DISASSEMBLY.SDR CA150813007Boot · torn(CAN) ON A POST FLIGHT INSPECTION IT WAS NOTED THE FWD COUPLING BOOT, M/R TRANSMISSION END, HAD SOME SLIGHT GREASE LEAKAGE. THE DRIVE SHAFT WAS REPLACE WITH ANOTHER DRIVE SHAFT. THE BOOT WAS INSTALLED NEW ON FEB 14 2012 AND THE MFG DATE ON THE BOOT WAS FEB 5SDR CA150813003Flex Coupling · cracked(CAN) DURING SHUTDOWN, ROTORS TURNING LOUD CLICKING HEARD FROM COUPLING WHILE ROTORS WERE SLOWING DOWN. COUPLING FOUND CRACKED IN 3 PLACES ALL AROUND, AND GOING THROUGH THE CRIMPED BUSHINGS OF THE OUTER DISK.SDR CA150813004Boot · disintegrated(CAN) ACFT HAD A HARD LANDING AFTER A MAIN DRIVESHAFT COUPLING FAILURE. DURING THE INVESTIGATION IT WAS NOTED THERE WAS A HIGH POSSIBILITY OF A DRIVE SHAFT BOOT FAILURE WHICH LEAD TO THE DRIVESHAFT COUPLING, TRANSMISSION END, FAILURE DUE TO AN OVERHEAT. THESDR CA141212009Clutch · worn(CAN) DURING TRAINING, IT WAS NOTICED THAT THE TACH NEEDLES DID NOT SEPARATE WHEN THE THROTTLE WAS ROLLED BACK TO IDLE. FREEWHEEL ASSY WAS REMOVED AND SENT TO O/H SHOP FOR INSPECTION. DURING INSPECTION CLUTCH ASSY WAS DEEMED UNSATISFACTORY.SDR CA141103026Jackscrew · damaged(CAN) UPON START UP IN THE FIELD AT A REMOTE SITE, THE PILOT FIRED THE ENGINE AS NORMAL AND ENGAGED THE CLUTCH, AS HE WAS AWAITING THE CLUTCH ENGAGEMENT, HE REPORTED HEARING A LOUD BANG AND NOTICED HIS ENGINE RPM FLUCTUATED. HE IMMEDIATELY SHUTDOWN AND CALLEDSDR CA141103033Jackscrew · damaged(CAN) DURING STARTING PROCEDURE, IN A REMOTE SITE, THE PILOT FIRED THE ENGINE AS NORMAL, ENGAGED THE CLUTCH AND WAS WAITING FOR IT TO ACTUATE WHEN HE HEARD A LOUD BANG AND ENGINE RPM INCREASED. HE IMMEDIATELY SHUT THE ENGINE OFF AND CALLLED MAINTENANCE. FOLLSDR 2014FA0000435Belt · failedAT APPROXIMATELY 300 FEET ALTITUDE, PILOT HEARD A LOUD BANG AND EXPERIENCED AN IMMEDIATE LOSS OF POWER. ATTEMPTED EMERGENCY LANDING RESULTED IN SUBSTANTIAL DAMAGE TO AIRCRAFT BOOM AND MAIN ROTOR BLADES. INVESTIGATION AND ANALYSIS DETERMINED THE MAIN DRIVE BESDR CA140328008Housing · cracked(CAN) DURING OVERHAUL THE FREEWHEEL ASSEMBLY, IT WAS NOTICED THAT A LARGE CRACK HAD FORMED UNDER THE O-RING GROOVE OF THE CHIP DETECTOR HOUSING. SHOULD THE CRACK HAVE CONTINUED AND THE CHIP DETECTOR HOSING HAD BROKEN FREE OF THE FREEWHEEL UNIT, OIL UNDER PRESSDR CA140217004O-Ring · missing(CAN) THE OVER RUNNING CLUTCH WAS PURCHASED AS AN EXCHANGE UNIT. THIS UNIT WAS INSTALLED AT TTAF 16552.9 HRS. THE INSPECTION CRITERIA IS A VISUAL OIL CHECK EACH 100 HRS, 300 HR HOOK TIME INSPECTION AND A 1800 HR OVERHAUL PERIOD. THIS UNIT AT INSTALL WAS TSO OFSDR QMLA2014012214010Transmission · making metalMULTIPLE MAIN TRANSMISSION CHIP LIGHTS, AFTER FOLLOWING CSP 900RMM 2 CHAPTER 63-20-00 & TABLE 601. CHIPS INDICATED ALL UNDER THE LIMITS OF THE CHAPTER BUT COME ON EACH AIRCRAFT RUN UP.SDR CA130812004Sprag Clutch · failed(CAN) "SUDDEN YAW, GRINDING NOISE AND CLUTCH WARNING LIGHT IN STRAIGHT AN LEVEL FLIGHT, ALL WITHIN LESS THAN A SECOND. LANDED TO INSPECT THE ACFT, BUT COULDN`T FIND ANYTHING WRONG THAT WOULD HAVE BEEN VISIBLE. CONTINUED FLIGHT AFTER DISCUSSING THE ISSUE WITHSDR CA130731006Shaft · corroded(CAN) CORROSION WHERE THE FRONT SEAL RUNS ON OUTER DIAMETER OF THE INNER SHAFT.SDR CA130617012Actuator · worn(CAN) DURING ACFT INSPECTION MOVEMENT WAS NOTED BETWEEN THE CLUTCH ACTUATOR GEARBOX HSG AND SHAFT.SDR CA130521019Freewheel Unit · blocked(CAN) THE REPORTED HE FELT THE ACFT TWITCH, AND YAW, FOLLOWED BY THE NEEDLES ON THE GAUGES FLUCTUATING, GIVING INDICATIONS OF AN ENGINE FAILURE, OR IMPENDING ENGINE FAILURE. THIS WAS FOLLOWED BY A TRANSMISSION CHIP LIGHT INDICATION ON THE WARNING PANEL. ONCESDR CA121130005Wire · loose(CAN) PILOT REPORTED INTERMITTENT CLUTCH ACTUATOR WARNING. CLUTCH ACTUATOR REPLACED. CLUTCH ACTUATOR WAS FOUND TO HAVE A LOOSE WIRE ON THE UP LIMIT SWITCH.SDR CA121031007Seal · leaking(CAN) DURING INSPECTION OF THE ACFT OIL, WAS NOTED LEAKING FROM THE REAR SEAL OF THE CLUTCH ASSEMBLY. SEAL HAD DISLODGED FROM RETAINER AND MIGRATED ALONG CLUTCH SHAFT. CLUTCH ASSEMBLY REPLACED.SDR CA121011011Sprag Clutch · damaged(CAN) DURING THE 100 HOUR INSPECTION, THE ENGINEER NOTICED THAT THE OIL IN THE CLUTCH WAS VERY DARK. HE REMOVED THE ASSY AND DISASSEMBLED THE CLUTCH. THE SPRAG ELEMENTS WERE BROKEN DOWN FROM THE TOP.SDR CA121012003Actuator · failed(CAN) ACFT WOULD NOT START. FOUND CLUTCH ACTUATOR SWITCH HAD FAILED. CLUTCH ACTUATOR REPLACED.SDR CA120928004Actuator · failed(CAN) ON SHUTDOWN ELECTRIC CLUTCH ACTUATOR SWITCHED TO THE DISENGAGED POSITION BUT DID NOT RESPOND. DOWN LIMIT SWITCH TERMINAL WIRE FOUND BROKEN, BUT STILL COVERED WITH HEAT SHRINK. CLUTCH ACTUATOR REMOVED AND ALL 4 SWITCHES REPLACED NEW.SDR CA120813028Actuator · unserviceable(CAN) CLUTCH ACTUATOR SWITCH NOT WORKING. CLUTCH ACTUATOR ASSY REPLACED.SDR ALGA2012071302Adapter · corrodedDURING COMPLIANCE WITH 3000 HR O/H OF THE F/W UNIT ASSY, THE ADAPTER WAS DISCARDED DUE TO PITTING AND CORROSION BEYOND MFG LIMITS.SDR CA121015003Sprag Clutch · cracked(CAN) CLUTCH ASSEMBLY FOUND NOISY DURING OPERATION. UPON DISASSEMBLY FOUND SPRAG ASSEMBLY CRACKED IN MULTIPLE PLACES.SDR CA120618010Actuator · intermittent(CAN) CLUTCH ACTUATOR INTERMITTENT. CLUTCH ACTUATOR REPLACED.SDR CA120612011Actuator · intermittent(CAN) INTERMITTENT CLUTCH WARNING LIGHT IN FLIGHT. CLUTCH ACTUATOR REPLACED.SDR ALGA2012051803Adapter · corrodedADAPTER CORRODED BEYOND LIMITS.SDR ALGA2012051802Adapter · corrodedADAPTER CORRODED BEYOND LIMITS.SDR ALGA201204171201Adapter · corrodedFREE WHEEL UNIT ADAPTER CORRODED BEYOND LIMITS.SDR ALGA201203121206Adapter · corrodedFREE WHEEL UNIT ADAPTER HAS PITTING CORROSION BEYOND LIMITS.SDR ALGA201203121205Housing · corrodedFREE WHEEL UNIT HOUSING HAS PITTING CORROSION BEYOND LIMITS.SDR CA120228019Bearing · damaged(CAN) INPUT MODULE WAS REMOVED FROM ACFT DUE TO A RIVET HEAD FOUND ON THE INPUT MODULE CHIP DETECTOR. FINDINGS DURING DISASSEMBLY WERE, THE SOURCE OF RIVET HEAD WAS THE BEARING. THE CONDITION OF THE BEARING WAS UNSERVICEABLE AS IT HAD LOST THE MAJORITY OF IT
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