JASC 8530
Service difficulty reports · 4,342
Reports filed under 8530 · Reciprocating Engine Cylinder 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 = '8530' 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 = '8530' 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 98ZZZX4473Valve Guide · wornDURING A ROUTINE COMPRESSION CHECK, THE EXHAUST VALVE ON THE NR 2 CYLINDER WAS FOUND LEAKING. THE REMOVED CYLINDER, EXHAUST VALVE AND GUIDE WERE FOUND WORN OUT. SUBMITTER SUGGESTED POSSIBLE CAUSE AS DEFECTIVE PARTS OR ASSEMBLY PROCESS AT THE FACTORY.SDR 96ZZZX948Cylinder · crackedCYLINDER CRACKED IN SPARK PLUG BOSS. CRACK WAS HEADING TO FUEL INJECTOR BOSS. ENGINE ONLY HAD 1,078.7 HOURS TOTAL TIME.SDR 96ZZZX869Piston · mismfgPURCHASED 6 EACH CYLINDER POWER PACKS FROM SUPERIOR AIR PARTS. P/N SA10200A23P. CONTINENTAL PISTONS WERE SUPPLIED WITH THE POWER PACKS. PISTONS ARE TOO LARGE FOR CYLINDER BORE AND CANNOT GET PROPER PISTON CYLINDER CLEARANCE BELOW 3RD RING. CONTINENTAL OVERSDR AU960256Exhaust Valve · worn(AUS) ENGINE EXHAUST VALVES PNO 646283 AND VALVE GUIDES PNO 643766 WORNAND LEAKINGSDR 96ZZZX1086Pushrod · brokenENGINE STARTED RUNNING ROUGH. FOUND NR 6 CYLINDER EXHAUST PUSHROD BROKEN IN TWO. THIS CAUSED EXHAUST VALVE IN NR 6 CYLINDER NOT TO OPEN.SDR 96ZZZX944Spring · brokenPILOT REPORTED A NOTICEABLE VIBRATION SHORTLY AFTER TAKEOFF AND DURING CLIMB AND INTO CRUISE. AFTER LANDING AT FINAL DESTINATION, MAINTENANCE PERFORMED A CYLINDER COMPRESSION CHECK. ALL CYLINDERS ON BOTH ENGINES SHOWED NO EVIDENCE OF LEAKAGE. AFTER FURTHER SDR 96ZZZX786Pushrod · wrong partENGINE WAS OVERHAULED BY FACTORY 2-20-95. DURING STC'D CONVERSION PRIOR TO INSTALLATION IN AIRCRAFT, ALL EIGHT PUSHRODS WERE FOUND TO BE P/N 73806 'V' PUSHRODS. SUBMITTER STATED AD 95-03-10 DOES NOT COVER THIS ENGINE (BUT SHOULD). FACTORY WAS NOTIFIED AND RSDR 96ZZZX775Pushrod · ball separation370 HOURS AFTER OVERHAUL, ENGINE VIBRATION WAS DETERMINED TO BE CAUSED BY BALL END SEPARATION FROM PN 73806-85 PUSHROD. PUSHROD WAS REPLACED AND ENGINE VIBRATION WAS BACK TO NORMAL. AD'S 80-25-02R2 AND 95-03-10 DO NOT PERTAIN TO THESE PUSHRODS.SDR 96ZZZX4292Cylinder · crackedDURING A ROUTINE ENGINE COMPRESSION TEST, CYLINDER NR 1 SHOWED 10/80. A VISUAL INSPECTION CONFIRMED A CRACK EMANATING FROM THE LOWER SPARK PLUG HOLE TO THE COOLING FINS, APPROXIMATELY 1.50 INCHES LONG. THIS IS A RECURRING ITEM, OPERATOR KNOWS OF AT LEAST 12 SDR AU960369Cylinder · over temp(AUS) LH ENGINE INTERNAL COMPONENTS EXHIBITED SIGNS OF OVERHEATING - STEEL ITEMS BLUED - ENGINE CYLINDER BORES GLAZED - SUSPECT CAUSEDBY GROUND RUNNING AT HIGH POWER SETTINGS DURING FAULT FINDING OF THE ELECTRICAL POWER SUPPLY SYSTEM - SEE MDR 96/0368 FOR SIMISDR AU960368Cylinder · over temp(AUS) RH ENGINE INTERNAL COMPONENTS EXHIBITED SIGNS OF OVERHEATING - STEEL ITEMS BLUED AND CYLINDER BORES GLAZED - SUSPECT ENGINE OVERHEATED DURING EXTENSIVE GROUND RUNNING AT HIGH POWER DURING FAULT FINDING OF THE ELECTICAL POWER SUPPLY SYSTEM - SEE MDR 96/0SDR 96ZZZX886Pushrod · defectiveFOUND PUSHROD HOLDING VALVE OPEN. CLEARANCE .000 INCH, CYLINDER NR 2 CLEARANCE .013 INCH SHOULD BE .028 INCH. SEVEN HOURS SINCE SUDDEN STOPPAGE.SDR 96ZZZX701Valve · excess wearFREQUENT FINDING OF LOW COMPRESSION ON EITHER FRONT OR REAR ENGINE WITH ONLY 808 HOURS TT. EACH TIME REPAIR WAS ACCOMPLISHED DUE TO THIS HISTORY, COMPLETE CYLINDER TEAR DOWN REVEALED EXCESS WEAR TO EXHAUST VALVES AND EXHAUST VALVE GUIDES. SUBMITTER SUSPECTS SDR 96ZZZX700Valve Guide · excess wearFREQUENT FINDING OF LOW COMPRESSION ON EITHER FRONT OR REAR ENGINE WITH ONLY 808 HOURS TT. EACH TIME REPAIR WAS ACCOMPLISHED DUE TO THIS HISTORY, COMPLETE CYLINDER TEAR DOWN REVEALED EXCESS WEAR TO EXHAUST VALVES AND EXHAUST VALVE GUIDES. SUBMITTER SUSPECTS SDR AU960250Piston · cracked(AUS) ENGINE PISTON CROWN CRACKED - THIS DEFECT WAS RECEIVED FROM THE AUF AND IS FOR INFORMATION ONLYSDR 96ZZZX718Push Rod · defectiveON INSPECTION OF AD 95-03-10, PUSH ROD OF ACCEPTABLE PART NUMBER PER AD WAS FOUND TO HAVE A LOOSE BALL END AND TUBE WAS MUSHROOMED. THIS ENGINE WAS DUE FOR OVERHAUL IN 42 HOURS AT NEXT 100-HOUR INSPECTION, AND THE HIGH TIS WAS SUSPECT CAUSE OF DEFECT.SDR 96ZZZX799Cylinder · excess wearFOUND CYLINDER EXCESS WEAR. THE NORMAL LIFE OF THIS CYLINDER IS AT 1,500 HOURS TBO. THIS CYLINDER LASTED 1,043 HOURS. PREMATURE WEAR FAILURE SEEMS TO BE AN UNFORTUNATE TREND FOR CERMICHROME CYLINDERS. SUBMITTER RECOMMENDS NORMAL OPERATIONS WATCHING ENGINE SDR 96ZZZX705Cylinder · failedTHE NORMAL LIFE OF THIS CYLINDER IS AT 1,500 HOURS TCO. THIS ONE LASTED 1,043 HOURS. THIS PREMATURE WEAR FAILURE SEEMS TO BE AN UNFORTUNATE TREND FOR CERMICHROME CYLINDERS. SUBMITTER RECOMMENDS NORMAL OPERATIONS WATCHING ENGINE PARAMETERS AND FREQUENT OIL CSDR AU960072Pin · fractured(AUS) ENGINE NO1 PISTON PIN FRACTURED IN CENTRE CAUSING PISTON PIN BOSSTO BREAK EVENLY ON BOTH SIDES OF PISTON - DURING THE 100 HOURLYINSPECTION THE OIL PRESSURE FILTER WAS FOUND TO CONTAIN LARGE AMOUNTS OF STEEL AND ALLOY AND THE ENGINE WAS STRIPPED - DAMAGESDR AU960078Cylinder · cracked(AUS) ENGINE CYLINDER CRACKED IN AREA BETWEEN THE SPARK PLUG HOLE AND THE EXHAUST VALVE SEAT - CRACK LENGTH 30MM (1.18IN)SDR 96ZZZX584Cylinder Assy · boss brokeFOUND NR 5 CYLINDER ROCKER ARM BOSSES BROKEN OFF ON EXHAUST VALVE.SDR 96ZZZX4415Cylinder · crackedFOUND SMALL CRACKS LEADING FROM SPARK PLUG HOLES AROUND TO THE EXHAUST PORTS ON NR 1, NR 3, AND NR 4 CYLINDERS. A BRIGHT FLASHLIGHT AND MAGNIFING GLASS WERE USED TO FIND THE CRACKS DURING A 100-HOUR INSPECTION. DYE CHECK WOULD NOT PICK UP ONE CRACK.SDR 96ZZZX1466Cylinder · crackedFLT 431 - SHUT DOWN NR 1 ENGINE AT 2245Z DUE TO RAPID BACKFIRING AND LOSS OF POWER. MAINTENANCE REPLACED NR 6 CYLINDER ASSY ON NR 1 ENGINE DUE TO CRACKED HEAD. AIRCRAFT RETURNED TO SERVICE.SDR CA960123022Valve · jammed(CAN) NON FERROUS METAL IN THE MAIN AND SUCTION OIL SCREENS. ZERO COMPRESSION ON #4 CYLINDER, SUSPECT A JAMMED VALVE. #4 CYLINDER REMOVED AND SENT FOR REPAIR.SDR 96ZZZX617Valve Guide · excess wearNR 1 AND NR 3 CYLINDERS FAILED LYC SB 388B TEST FOR EXCESS WEAR (.035 INCH AND .043 INCH RESPECTIVELY). THESE EXACT SAME TWO GUIDES AND CORRESPONDING VALVES HAD BEEN PREVIOUSLY REPLACED AT 408 HOURS SINCE NEW ENGINE. FOUR-PROBE EGT/CHT SHOWED ALL TEMPS NORMASDR CA960126038Valve · sticking(CAN)ENGINE HAD OIL LEAK #3 CYLINDER, AFTER REMOVING THE CYLINDER IT WAS FOUND THAT THE EXHAUST VALVE WAS STICKING AND THE PUSH ROD WAS BENT.SDR 96ZZZX583Bushing · crackedUPON REMOVAL OF NR 6 CYLINDER, THE CONNECTING ROD PISTON PIN BUSHING WAS FOUND CRACKED.SDR 96ZZZX577Cylinder · coating failedINSPECTION FOUND CERMINIL CYLINDER PROCESS HAS FAILED. PARTICLES COMING LOOSE IN SMALL PIECES. CONTAMINATION IS PASSING THROUGH ENTIRE OIL SYSTEM. BEARINGS ARE DAMAGED BEYOND FURTHER USE. CAMSHAFT AND LIFTERS ARE DAMAGED. SUBMITTER STATED ALL ACCESSORIES SDR 96ZZZX369Cylinder · head separatedIMMEDIATELY AFTER LIFT OFF HEARD A LOUD BANG FROM ENGINE COMPARTMENT, 3 MORE ENTERED CABIN, ABORTED TAKEOFF AND SHUT DOWN ENGINE. REMOVED COWL AND FOUND NR 1 CYLINDER HEAD SEPARATED FROM BARREL.SDR CA960206102Piston · cracked(CAN)PILOT REPORTED SMOKE IN COCKPIT AND A BIT OF OIL ON THE WINDSHIELD. AIRCRAFT RETURNED TO POINT OF DEPARTURE. POST FLIGHT INSPECTION FOUND #8 CYLINDER PISTON CRACKED AND PISTON RING BROKEN. THE PISTON WAS CRACKED FROM THE PISTON PIN HOLE TO OVER THE TOP OSDR 96ZZZX368Cylinder · head separatedNR 5 CYLINDER HEAD SEPARATED FROM TIRE BARREL DURING TAKEOFF AT POWER REDUCTION. EMERGENCY LANDING MADE. NO FURTHER DAMAGE FOUND.SDR AU960024Exhaust Valve · worn(AUS) ENGINE CYLINDERS HAD WORN EXHAUST VALVES PN 646286 AND VALVE GUIDES PN 643767 - VALVE STEMS ALSO NECKED - SUSPECT CAUSED BY USE OF MOGASSDR AU960007Pushrod · distorted(AUS) NO2 CYLINDER EXHAUST VALVE PUSHROD BENT - SUSPECT PUSHROD WAS SLIGHTLY BENT WHEN FITTED AT RECENT OVERHAULSDR 96ZZZX772Shaft · wornDURING REMOVAL OF A CYLINDER FOR REPAIR, THE ROCKER ARM SHAFTS WERE FOUND WORN DOWN .035 INCH ON ONE SIDE OF THE SHAFT. THIS CONDITION WAS FOUND ON ALL 12 SHAFTS FOR THIS ENGINE.SDR 96ZZZX671Engine · misoverhauledWHILE DISASSEMBLING THE ENGINE, THE CAM, ROCKER ARM SUPPORTS, AND CAM HOUSING WERE FOUND EXCESSIVELY WORN, METAL TRANSFER FROM THE CASE TO THE CAM, GALLING OF JOURNALS, ALL SEVEN BEARING SUPPORTS WERE DAMAGED. IT WAS ALSO NOTED THE ROCKER SUPPORTS THAT FORM ASDR 96ZZZX1084Cylinder · crackedPILOT REPORTED A ROUGH ENGINE AND A PARTIAL LOSS OF POWER. A PRECAUTIONARY LANDING MADE ON A COUNTY ROAD. NO DAMAGE TO AIRCRAFT, PERSONNEL, OR PROPERTY. FOUND NR 4 CYLINDER CRACKED AFTER CYLINDER REMOVED. CRACK WENT THROUGH VALVE GUIDE BOSS ALLOWING GUIDE SDR CA960126035Cylinder · cracked(CAN)IN CRUISE ENGINE BEGAN TO RUN ROUGH, AIRCRAFT LANDED AT NEAREST AIRPORT AND GROUND INSPECTION FOUND #5 CYLINDER CRACKED AT THE EXHAUST VALVE & SPARKK PLUG HOLE. CYLINDER REPLACED & AIRCRAFT RETURNED T O SERVICE.SDR 96ZZZM1128Cylinder · crackedFLT 43 - SHUT DOWN NR 3 ENGINE AT 1910Z DUE TO BACKFIRING IN CRUISE. MAINTENANCE REPLACED NR 18 CYLINDER ASSEMBLY ON NR 3 ENIGNE DUE TO CRACKED HEAD. AIRCRAFT RETURNED TO SERVICE. (M)SDR 96ZZZM1125Cylinder · crackedFLT 20 - SHUT DOWN NR 1 ENGINE AT 2029Z. MAINTENANCE REPLACED NR 18 CYLINDER ASSEMBLY ON NR 1 ENGINE DUE TO CRACKED HEAD. AIRCRAFT RETURNED TO SERVICE. (M)SDR 96ZZZX865Piston · defectiveIN C/W AD 78-08-07 INSPECTION FOR POSSIBLE SEPARATION OF CYLINDER HEAD AND BARREL, SIGNS OF BLOW-BY WERE NOTED. CYLINDER ASSY REMOVED AND RETURNED TO OVERHAUL FACILITY.SDR 96ZZZX866Piston · crackedTHE CYLINDER SHOWED LOW COMPRESSION AND EMITTED BLACK OILY EXHAUST. CYLINDER ASSY REMOVED. FOUND CRACKED PISTON. CRACK EXTENDED FROM PISTON PIN HOLE TO TOP OF PISTON. NO OTHER DAMAGE. CAUSE UNKNOWN.SDR 96ZZZM1126Cylinder · crackedFLT 70 - SHUT DOWN NR 4 ENGINE AT 2340Z DUE TO RAPID BACKFIRING AND ROUGH RUNNING. MAINTENANCE REPLACED NR 8 CYLINDER ASSEMBLY ON NR 4 ENGINE DUE TO CRACKED HEAD. AIRCRAFT RETURNED TO SERVICE. (M)SDR 96ZZZX389Valve · brokenON CLIMB-OUT OF EOK, RT ENGINE STARTED RUNNING ROUGH. DIRECTED TO SPI. FOUND NR 10 CYLINDER, RT ENGINE, WITH BROKEN EXHAUST VALVE.SDR 96ZZZM1130Cylinder · crackedFLT 43 - SHUT DOWN NR 3 ENGINE AT 2050Z DUE TO BACKFIRING AND OIL LOSS. MAINTENANCE REPLACED NR 18 CYLINDER ASSEMBLY ON NR 3 ENGINE DUE TO CRACKED HEAD. AIRCRAFT RETURNED TO SERVICE. (M)SDR 96ZZZX180Valve Guide · wornFOUND CYLINDER COMPRESSION AT 40/80. REMOVED CYLINDER AND FOUND EXHAUST VALVE GUIDE WORN OVER LIMITS. EXHAUST VALVE IN GUIDE CLEARANCE AS MEASURED IS 0.016 INCH. SERVICEABLE LIMITS ARE 0.006 INCH.SDR CA960110201Valve Seat · loose(CAN)IN CRUISE FLIGHT #4 ENGINE BEGAN TO RUN ROUGH ACCOMPANIED BY BACKFIRING THROUGH THE INDUCTION SYSTEM. THE ENGINE WAS SHUTDOWN. POST FLIGHT INSPECTION DISCLOSED THE #8 CYLINDER INTAKE VALVE SEAT HAD CA ME ADRIFT, PREVENTING THE INTAKE VALVE FROM CLOSING.SDR 96ZZZX603Valve · stickingDURING TAKEOFF, AIRCRAFT ENGINE BECAME VERY ROUGH. PILOT COULD NOT DUPLICATE ON GROUND. FURTHER INVESTIGATION FOUND NR 1 AND NR 2 CYLINDER EXHAUST VALVES STICKING. REMOVED AND CLEANED ALL FOUR CYLINDER EXHAUST VALVES AND GUIDES. THIS IS SECOND OCCURRENCE WSDR 95ZZZX7013Cylinder · head separatedDURING APPROACH, LEFT ENGINE STARTED RUNNING ROUGH. INSPECTION FOUND NR 11 CYLINDER HEAD HAD SEPARATED FROM BARREL.SDR 98ZZZX4522Guide · wornDURING A ROUTINE COMPRESSION CHECK, THE EXHAUST VALVE WAS FOUND LEAKING ON THE NR 1 CYLINDER. THE REMOVED CYLINDER HAD A WORN OUT EXHAUST VALVE AND GUIDE. SUBMITTER SUGGESTED POSSIBLE CAUSE AS DEFECTIVE PARTS OR ASSY PROCESS AT THE FACTORY.SDR 98ZZZX4521Valve · wornDURING A ROUTINE COMPRESSION CHECK, THE EXHAUST VALVE WAS FOUND LEAKING ON THE NR 1 CYLINDER. THE REMOVED CYLINDER HAD A WORN OUT EXHAUST VALVE AND GUIDE. SUBMITTER SUGGESTED POSSIBLE CAUSE AS DEFECTIVE PARTS OR ASSY PROCESS AT THE FACTORY.
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