JASC 8540
Service difficulty reports · 167
Reports filed under 8540 · Reciprocating Engine Rear Section, 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 = '8540' 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 = '8540' 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 2022FA0000165Drive Shaft · crackedLH MAGNETO DRIVE SHAFT FOUND CRACKED 3/4 OF THE LENGTH OF THE DRIVE SHAFT. THIS MAGNETO DRIVE OPERATES THE AFTER MARKET SUPERCHARGER FROM FORCED AEROMOTIVE.SDR JU8S20210420255Impulse Coupling · looseTHIS ISSUE RELATES SPECIFICALLY TO THE CHAMPION MAGNETO IMPULSE COUPLING PART NUMBER M3163 INSTALLED IN THE CHAMPION PART NUMBER 4371 MAGNETOS. ON 10-14-2019, REVISED 02-14-2020 CHAMPION ISSUED SB2-19A WHICH DEALS WITH IMPULSE COUPLING RIVETS LOOSENING IN SERSDR 2020FA0000307Drive Gear · crackedDURING ROUTINE 100 HOUR INSPECTION THE MAGNETO WAS REMOVED FOR 500 HOUR SERVICE AND INSPECTION. SINCE THE MAGNETO WAS OUT OF THE WAY AND INSPECTION OF THE MAGNETO DRIVE CUSHIONS WAS REQUIRED, THE GEAR WAS REMOVED FROM THE ENGINE. ONCE THE CUSHIONS WERE REMOVEDSDR CA180925012Support · loose(CAN) AIRCRAFT SUFFERED AN UNCOMMANDED RIGHT ENGINE SHUT DOWN APPROXIMATELY 10 MINUTES INTO THE FLIGHT, PILOT EXECUTED AND ENGINE OUT SHUT DOWN AND FEATHERED THE PROPELLER, THEN DIVERTED. ON OPENING THE RIGHT ENGINE COWLS THE FOLLOWING WAS FOUND: THE TWO RETASDR CA151007022Gearbox · making metal(CAN) UNCOMMANDED POWER LOSS IN DEPARTURE LEG OF FLIGHT. PILOT REDUCED POWER TO 55% BUT NOTICED IT ACTUALLY REDUCED TO 35%. PROPELLER RPM DROPPED, ALTHOUGH DROP NOT RECORDED. PILOT CONTINUED FLIGHT TO A FULL STOP LANDING AT DEPARTURE AIRPORT. PILOT PROCEEDED TSDR CA111206006Bevel Gear · deformed(CAN) THIS PN 640802, GEAR WAS PURCHASED NEW FROM THE OEM. IT WAS RECEIVED IN ORIGINAL TCM PACKAGING. DURING ASSY OF THE ACCESSORY DRIVE ADAPTER, THE NEW PN 640802 GEAR WAS FOUND TO HAVE 6 MISFORMED TEETH. MACHINING OF THESE 6 GEAR TEETH APPEARS TO BE INCOMSDR 2011FA0000600Bushing · defectiveDEFECTIVE MAGENTO DRIVE BUSHINGS INSTALLED AT ENGINE O/H. CONTINUE HIS VFR FLIGHT BACK TO WHERE THE ACFT IS BASED. UPON REMOVAL OF THE VACUUM PUMP IT WAS NOTED THAT THE DRIVE SHAFT HAD MELTED/BURNED AWAY. REMOVED ACCESSORY DRIVE PAD AND NOTED THAT THE ACCESSDR CA110718001Valve Seat · missingACFT WAS SNAGGED FOR LOW OIL PRESSURE, AFTER INSPECTION, NOTICED THAT THERE WAS A SMALL CHIP ON THE OIL PRESSURE RELIEF VALVE SEAT THAT WAS MISSING. O/H REAR ACCESSORY CASE WAS INSTALLED AND OIL PRESSURE FOUND TO BE WITHIN MFG LIMITS.SDR FXTA20110405005Mount · crackedWHILE PERFORMING AN ENGINE INSPECTION TECHNICIAN DISCOVERED THE RT LOWER ENGINE/TURBO MOUNT BOLT LOOSE. AFTER REMOVING THE BOLT IT WAS DISCOVERED THE TURBO MOUNT BOSS CRACKED AND BROKEN IN SEVERAL PIECES.SDR 2009FA0000392Flange · warpedWHILE LOOKING FOR THE SOURCE OF AN OIL LEAK FOUND THE TACHOMETER DRIVE ADAPTER HOUSING FLANGE WARPED AND CRACKED.SDR 2007FA0000820Bearing · destroyedBEARING LW14227 CAGE DESTROYED AND APPROXIMATELY 50 PERCENT MISSING. THIS IS THE ENGINE SIDE BEARING OF THE LW15416 MAGNETO DRIVE ADAPTER (MAGNETO ISOLATION DRIVE FOR RIGHT HAND MAGNETO). ENGINE HAS 857 HOURS SINCE FACTORY OVERHAUL IN 2000.SDR 2007FA0000183Gear · looseDURING TAKEOFF AT 400 FT AGL ENGINE QUIT FORCING AN OFF AIRPORT EMERGENCY LANDING. INITIAL INSPECTION FOUND NO MOVEMENT OF ACCESSORIES AND VALVE MOVEMENT. REMOVED ACCESSORIES CASE AND FOUND DRIVE GEAR ON CRANKSHAFT MOUNT BOLT LOOSE AND PIN SHEARED. MARKS SHSDR 2007FA0000058Gearshaft · seizedREMOVED VACUUM DRIVE ASSEMBLY AND FOUND DRIVE GEAR SHAFT SEIZED AND (3) TEETH BROKEN OFF OF DRIVE GEAR. FURTHER INSPECTION REVEALED NO LUBRICATION PORT FOR PRESSURIZED ENGINE OIL TO LUBRICATE THE DRIVE GEAR SHAFT. ALL (3) TEETH WER FOUND IN THE OIL PUMP INLESDR 2006FA0000675Bushing · spunFOUND DURING ANNUAL INSP, AN ALUMINUM BUSHING THAT IS LOCATED IN ACCESSORY CASE, WHERE MAGNETO DRIVE GEAR IS LOCATED HAD BECOME LOOSE IN CASE AND SPUN. FOUND THIS PROBLEM, WERE NOT ABLE TO INSTALL MAGNETO CORRECTLY, WHEN MAGNETO WAS INSTALLED, IMPULSE COUPLSDR NACA20060039Case · separatedNR 1 ENGINE SHUT DOWN DUE TO OIL LOSS, QUANTITY AND PRESSURE. REPLACED NR 1 ENGINE DUE TO COLLECTOR CASE TO INTERMEDIATE REAR CASE SEPARATION PER NAC DC-6MM SEC V PG 1-9.SDR 2007FA0000212Sump · leakingDURING NEWLY OVERHAULED ENGINE INSTALLATION AN OIL LEAK WAS DISCOVERED. WHEN BREAK-IN OIL WAS ADDED TO OIL SUMP FOR INITIAL ENGINE RUN, OIL WAS OBSERVED LEAKING ONTO NOSE TIRE. FURTHER EXAMINATION REVEALED OIL LEAK WAS ORIGINATING FROM LEFT REAR OF ENGINE WHSDR AU510002007Drive Shaft · failedCSU DRIVE ASSEMBLY FAILED. INVESTIGATION CONTINUING.SDR 05308Seal · leakingDURING 100 HOUR INSPECTION, FOUND ENGINE VACUUM PUMP DRIVE LEAKING OIL AND CONTAMINATING VACUUM PUMP. REMOVED VACUUM PUMP AND ENGINE VACUUM PUMP ADAPTOR DRIVE ASSEMBLY. FOUND SEAL P/N STD-1774 NOT FULLY INSTALLED IN DRIVE ASSY. REPLACED SEAL AND VACUUM PUMP, SDR AU510001781Spring · brokenENGINE STARTER ADAPTER SPRING END TANG BROKEN OFF.SDR CA050222011Bolt · broken(CAN) UPON INSPECTION OF THE ENGINE DURING A SCHEDULED B-CHECK, ONE OF THE BOLTS HOLDING THE POWERCASE AND REAR ACCESSORY CASE TOGETHER WAS FOUND MIGRATING OUT OF THE POWERCASE BETWEEN CYLINDER NR4 AND NR5. ENGINE WAS REMOVED FOR REPAIR BY OVERHAUL SHOP.SDR 2005FA0000144Gear Shaft · brokenAT AIRCRAFT 100 HOUR ENGINE WAS FOUND WITH TIGHT SPOT. REMOVED ENGINE ACCYS AND FOUND GOVERNOR SHAFT NOT TURNING DISASSEMBLED ENGINE. FOUND GOVERNOR IDLER GEAR SHAFT (PN 70384) BROKEN IN 3 PARTS; ALL GOV GEARS HAD RG TEETH, 1 OF 2 KNOWN FAILURES, ON SHAFT (SDR 2004FA0000764Bushing · obstructedENGINE LOST POWER ON TAKE-OFF. PILOT LANDED IN BOG AND FLIPPED OVER. PRELIMINARY INSPECTION SHOWED DAMAGE TO INDUCTION IMPELLER. TEARDOWN REVEALED IMPELLER SHAFT SUPPORTED BY TWO BRONZE BUSHINGS WHICH ARE LUBRICATED BY AN .1250 INCH HOLE ON BOTH BUSHINGS ANSDR AUS20031062Seal · damaged(AUS) LT ENGINE HYDRAULIC PUMP DRIVESHAFT SEAL DAMAGED AND LEAKING. HYDRAULIC PUMP HAD BEEN CHANGED ON THE PREVIOUS DAY.SDR AUS20031054Bushing · separated(AUS) GOVERNOR IDLE SHAFT BUSHING BROKEN AWAY AND ENTERED ENGINE LUBRICATION SYSTEM CAUSING METAL CONTAMINATION.SDR 2003FA0001216Gear · wornTEETH TOO SHALLOW, TOOTH DEPTH WAS 0.152, NORMAL .0.180 TO 0.185.SDR AUS20031059Gear · wrong part(AUS) CRANKSHAFT GEAR INCORRECT PART. GEAR WAS NOT COMPLETELY MESHING WITH THE OIL PUMP DRIVE GEAR. PN 13S19648 FITTED INSTEAD OF CORRECT PN 13S19647. SUSPECT ENGINE HAD BEEN CONVERTED FROM EITHER AN IO-540 OR TSIO-540 MODEL, BOTH OF WHICH USED THE FITTED GEARSDR AUS20030891Spacer · worn(AUS) ENGINE OIL FILTER CONTAMINATED WITH BRONZE PARTICLES. INVESTIGATION FOUND THE TACHOMETER DRIVESHAFT SPACER HAD COME LOOSE FROM THE CAMSHAFT AND WAS WEARING ON THE SHAFT ROLL PIN.SDR J792003F00000Seal · wornDURING 100 HOUR INSPECTION, FOUND RT ENGINE PNEUMATIC PUMP COUPLING OILY. FURTHER INVESTIGATION REVEALED DRIVE SHAFT ADAPTER SEAL LEAKING OIL INTO PUMP COUPLING AND INTO PUMP. REPLACED SEAL (PN 25102) AND PRESSURE PUMP (442CW-12). SYSTEM OPS CHECK OK. RECSDR 2002FA0001032Collar · mismanufacturedAT INSTALLATION OF A NEW GOVERNOR OIL TRANSFER COLLAR IT WAS DISCOVERED THAT THE ASSEMBLY HALVES WERE IRREGULAR AT THE PARTING SURFACE. THE INSIDE DIAMETER LOOKED SMOOTH AND REGULAR WHEN REMOVED FROM THE PACKAGE. ONCE DISASSEMBLED AND REASSEMBLED AND TORQUEDSDR 2002FA0001030Gear · damagedDURING PRE-FLIGHT INSPECTION PROPELLER WAS ROTATED BACKWARDS BY HAND TO CHECK COMPRESSION OF CYLINDERS. PROPELLER PHYSICALLY STOPPED BY SOMETHING INTERNAL IN ENGINE. AFTER INSPECTION BY REMOVING THE STARTER ADAPTER ASSEMBLY, THE CRANKSHAFT GEAR WAS FOUND TO SDR AUS20021235Gasket · damaged(AUS) ENGINE FUEL PUMP/BLANK PLATE GASKET CUT BY LOCKWIRE WRAPPED AROUND THE TWO MOUNTING BOLTS. GASKET LEAKING ENGINE OIL. ENGINEWAS FITTED WITH A BLANKING PLATE AND NOT A FUEL PUMP. ENGINE WASA RECENTLY OVERHAULED AND FITTED UNIT. PERSONNEL/MAINTENANCEERROR.SDR 2002FA0000807Drive Gear · seizedMAGNETO DRIVE GEAR WAS SEIZED TO CRANKCASE BUSHING WHICH WAS SPINNING IN ITS CRANKCASE BORE. THIS ENGINE HAD ONLY 219 HOURS SINCE FACTORY REMANUFACTURE. THE OPPOSITE ENGINE WHICH ALSO HAD 219 HOURS SINCE FACTORY REMANUFACTURE EXHIBITED THE EXACT SAME PROBLEMSDR AUS20020789Screw · failed(AUS) ENGINE ACCESSORY DRIVE GEAR PNO 67609 TO STARTER DRIVE GEAR PNO 67583 ATTACHMENT STUDS (6OFF) PNO STD-2208 AND DOWELS (3OFF) PNO72139 SHEARED.SDR CA020611006Bevel Gear · failed(CAN) - VACUUM PUMP DRIVE NOT TURNING.- INSPECTION REVEALS NO TEETH ON DRIVE BEVEL GEAR.- METAL CONTAMINANTS CONTAINED INSIDE STARTER ADAPTER.- TCM SB 01-5 ADDRESSES PROBLEM.- TCM WARRANTS FULL REPLACEMENT.SDR CA021003008Nut · loose(CAN) DAILY INSPECTION REVEALED CLUTCH OIL ON BELT DRIVE ASSEMBLY, STATIC LEAK. INVESTIGATION REVEALED LT THREAD NUT/SEAL RUNNER WAS LOOSE.SDR 2002FA0000463Shaft · failedAIRCRAFT ENGINE EXPERIENCED A LOSS OF OIL PRESSURE AND SUBSEQUENT LOSS OF POWER. ENGINE TEARDOWN INSPECTION REVEALED A FAILURE OF THE STARTER ADAPTER SHAFT.SDR CA020307010Casting · corroded(CAN) WHILE REMOVING COMPONENTS OFF OF THE ACCESORIE CASE, (UN RELATED REPAIR) DISCOVERED VER DEEP PITTING AND CORROSSION AROUND THE RIGHT MAGNETO OPENING.CASTING WAS REPLACED.SDR AUS20020169Shaft · broken(AUS) STARTER SHAFT AND CRANKSHAFT GEAR HAD SEVERAL MISSING TEETH.SDR AUS20020170Bearing · failed(AUS) STARTER SHAFT BEARING BROKEN UP. BEARING DEBRIS LOCATED IN SUMP.CRANKCASE DAMAGED IN AREA OF BEARING SUPPORT. STARTER SHAFT AND CRANK GEARS EXHIBITED DEFORMATION OF PROFILE. THE ENGINE WASFITTED WITH PNO EQ6642 ADAPTER KIT AS PER AD/CON/71.SDR XGN2002F00000Crankcase · crackedHALF CIRCLE CRACKED AT NR 6 CYLINDER PAD. CRACK RUNS FROM UPPER PART OF CRANKCASE FROM CYLINDER BASE STUD AT 2 OCLOCK POSITION TO CYLINDER BASE STUD AT 10 OCLOCK POSITION. WITH SEVERAL CRACK RADIATING FROM THE HALF CIRCLE CAUSING A SMALL TRIANGULAR PIECE TOSDR LQU2002F00000Pin · missingRIGHT ENGINE RAN ROUGH AND VIBRATED BADLY IN FLIGHT, SHUT DOWN. VISUAL INSPECTION FOUND OPEN HOLE IN BACK OF CRANKCASE. IDLER GEAR SUPPORT PIN MISSING. FOUND PIN ON ENGINE NACELLE FLOOR UNDER ENGINE. NO VISUAL DAMAGE NOTED TO PIN. ENGINE NEEDS PIN TO HOLDSDR YWB2001F00001Adapter · failedDURING ROUTINE INSPECTION FOUND METAL (STEEL) IN FILTER. REMOVED STARTER ADAPTER AND FOUND SHAFT GEAR NEEDLE BEARING PN 630890 IN ENGINE CASE HAD FAILED. NEEDLES FROM FAILED BEARING HAD ALSO DAMAGED CRANKSHAFT AND IDLER GEARS. SOME DAMAGE DONE TO ENGINE CASSDR 2001FA0000230Bevel Gear · failedTROUBLESHOT LOSS OF VACUUM ON REAR ENGINE AND DETERMINE ACCESSORY DRIVE ASSEMBLY GEAR BOX FOR VACUUM PUMP AND HYDRAULIC PUMP INOPERABLE. REMOVE AND DISASSEMBLED GEAR BOX AND FOUND BEVEL GEAR PN 632617 STRIPPED OF ALL GEAR TEETH. ENGINE HAD BEEN RECENTLY OVERSDR 2001FA0000177Gear · brokenONE TOOTH ON GEAR SEPARATED AND LODGED BETWEEN CRANKSHAFT GEAR AND OIL PUMP HOUSING. THIS CAUSED THE REMAINING TEETH OF THE CRANKSHAFT GEAR TO ROUND OFF AND DISENGAGE FROM THE OTHER GEARS. THIS ALSO CAUSED 2 IDLER GEARS AND THE OIL PUMP DRIVE GEAR TO SHEAR SSDR AUS20010648Gear · failed(AUS) ENGINE DRIVE GEAR PNO 67583 HAD SHEARED ALL THE BOLTS ATTACHING IT TO ACCESSORY DRIVE PNO 67609.SDR 20010613CW005Drive Shaft · seizedAT 25 HR OIL CHANGE, INTERVAL OIL WAS FOUND VENTING OUT RIGHT ENGINE OVERBOARD DRAIN AND OIL DRAINED FROM ENGINE HAD METALLIC GLIMMER TO IT, ALTHOUGH CUTTING THE OIL FILTER DID NOT REVEAL ANY UNUSUAL AMOUNT OF METAL. OIL VENTING WAS TRACED TO ENGINE DRIVEN HYSDR 20010613CW004Bearing · seizedAT 25 HR OIL CHANGE, INTERVAL OIL WAS FOUND VENTING OUT THE RIGHT ENGINE OVERBOARD DRAIN AND THE OIL DRAINED FROM THE ENGINE HAD A METALLIC GLIMMER TO IT, ALTHOUGH CUTTING THE OIL FILTER DID NOT REVEAL ANY UNUSUAL AMOUNT OF METAL. OIL VENTING WAS TRACED TO SDR CA010301035Idler Gear · worn(CAN) THE IDLER GEAR BETWEEN THE CRANKSHAFT AND THE CAMSHAFT GEAR DISENGAGED DUE TO FRACTURING OF THE CRANKCASE AND ACCESSORY CASE. THESE FRACTURES ARE DIRECTLY OPPOSITE THE CRAN GEAR AND WOULD INDICATE THAT A SOLID OBJECT WENT IN BETWEEN THE CRANK GEAR AND IDSDR AU001135Shaft · failed(AUS) LT ENGINE STARTER ADAPTER GEAR SHAFT SHEARED IN AN AREA 16MM(0.629IN) FROM THE PILOT BEARING END OF THE SHAFT.SDR AU001098Gear · failed(AUS) VACUUM PUMP DRIVE GEAR FAILED. (X)
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