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 95ZZZX1460Cylinder · guide looseDURING A ROUTE INPSECTION, NR 1 CYLINDER DISPLAYED LOW COMPRESSION. FURTHER INVESTIGATION, AFTER REMOVAL OF CYLINDER, REVEALED A LOOSE VALVE GUIDE IN THE CYLINDER HEAD. THIS ENGINE HAD BEEN OVERHAULED 70.0 HOURS PREVIOUS TO THE INSPECTION. CAUSE: INCORRECTSDR 95ZZZX1616Wrist Pin · failedPISTON WRIST PIN BROKE IN NR 3 CYLINDER CAUSED PISTON SKIRT TO BREAK. POLLUTED THE ENGINE WITH ALUMINUM. DAMAGED NR 3 CYLINDER, ROD, AND NR 4 PISTON WAS MARRED. THE ONLY INDICATION OF A PROBLEM WAS THE OIL PRESSURE DROPPED OFF TO HALF OF NORMAL DUE TO METALSDR 96ZZZX4725Valve · burnedPILOT REPORTED ENGINE STARTED MISSING AT 15,000 FEET FOLLOWED BY SURGING THAT MADE IT NECESSARY TO SECURE ENGINE. TROUBLESHOOTING FOUND NR 5, AND NR 6 CYLINDERS HAD 12-18 PSI COMPRESSION. PULLED CYLINDERS AND FOUND EXHAUST VALVE BURNED IN BOTH CYLINDERS. CASDR 95ZZZX1114Rocker Boss · failedCYLINDER EXHAUST AND INTAKE VALVE ROCKER BOSSES SEPARATED DURING FLIGHT RESULTING IN PRECAUTIONARY LANDING DUE TO LOSS OF ENGINE POWER. CYLINDER REPLACED AND AIRCRAFT RETURNED TO SERVICE. REF. AD 94-05-05.SDR 95ZZZX1684Valve · failedEXHAUST VALVE IN THE NR 9 CYLINDER NR 2 ENGINE FAILED CAUSING ENGINE TO RUN ROUGH. FURTHER INVESTIGATION FOUND METAL CONTAMINATION IN THE OIL SUMPS. THESE METAL FRAGMENTS WERE DETERMINED TO BE FROM PIECES OF THE DAMAGED VALVE. IT WAS THEN DECIDED TO REMOVE SDR 95ZZZX2666Cylinder · crackedROCKER ARM RETAINING STUD HELICOIL IMPROPERLY INSTALLED AND THE CYLINDER WAS CRACKED OUT OF SAME HOLE.SDR 95ZZZX1202Tube · hole chafedDURING ANNUAL INSPECTION, FOUND LT BAFFLE TIE ROD, PN 4197500, HAD RUBBED A HOLE IN BOTH INTAKE AND EXHAUST PUSH ROD TUBES ON NR 4 CYLINDER. THE ROUTING OF THE TIE RODS ARE VERY CLOSE TO THE PUSH ROD TUBES. SUBMITTER SUGGESTS THAT ALL BAFFLE TIE RODS BE LOOKESDR 95ZZZX1201Tube · hole chafedDURING ANNUAL INSPECTION, FOUND LT BAFFLE TIE ROD, PN 4197500, HAD RUBBED A HOLE IN BOTH INTAKE AND EXHAUST PUSH ROD TUBES ON NR 4 CYLINDER. THE ROUTING OF THE TIE RODS ARE VERY CLOSE TO THE PUSH ROD TUBES. SUBMITTER SUGGESTS THAT ALL BAFFLE TIE RODS BE LOOKESDR 95ZZZX1736Piston · failedPISTON WAS COMPLETELY DISINTEGRATING. ALL VALVES AND OTHER ENGINE PARTS COMPLETE AND ACCOUNTED FOR. SUSPECT CAUSE WAS METAL WAS TOO BRITTLE. PISTON PIN WAS IN ROD AND MOVING AROUND IN CYLINDER.SDR 95ZZZZ136Cylinder Head · crackedFLT 701 - SHUT DOWN NR 4 ENGINE DUE TO BACKFIRING AT 2358Z. REPLACED NR 1 CYLINDER. (Z)SDR 95ZZZX1007Intake Pipe · brokenDURING ROUTINE MAINTENANCE, MAINTENANCE PERSONNEL NOTED THAT NR 3 CYLINDER INTAKE PIPE WAS LOOSE AT CYLINDER. FOUND INTAKE PIPE BROKEN ABOUT 45 DEGREES AT THE FLANGE. REPLACED PART WITH A NEW INTAKE PIPE. OLD INTAKE PIPE HAD BEEN CHROMEPLATED BY UNKNOWN SHOSDR 96ZZZX5018Valve · failedDURING INVESTIGATION OF LOW CYLINDER COMPRESSION, NOTED THE TIP OF THE NR 4 CYLINDER EXHAUST VALVE WAS MUSHROOMED. ROCKER ARM IS DRILLED TYPE, PN 640944. WITH ROTOCOIL AND SPRINGS REMOVED, VALVE TIP COULD NOT BE WITHDRAWN FROM GUIDE. AFTER GRINDING TIP OF VSDR 95ZZZX822Rotor Coil · wornROTO-COILS EXTREMELY WORN, AND ELONGATED. FOUND DURING TOP OVERHAUL OF ENGINE.SDR 96ZZZX4738Cylinder · crackedAFTER LANDING, PILOT NOTICED NOISE FROM ENGINE, THOUGHT HE HAD EXHAUST LEAK. UPON INSPECTION, FOUND NR 3 CYLINDER HAD CRACKED AT TOP OF BARREL AND BURNED HOLE IN AREA OF CRACK. CRACK PROGRESSED THREE-FOURTHS WAY AROUND HEAD, AT TOP OF BARREL.SDR 95ZZZX2663Cylinder · crackedCRACKED CYLINDER FROM EXHAUST PORT AROUND CYLINDER HEAD TO SPARK PLUG HOLE, THREE-FOURTHS SEPARATED FROM BARREL.SDR 95ZZZX1427Cylinders · wornENGINE RUN SMOH WITH MOBIL AV-1 ENGINE OIL. ENG STARTED SHOWING HIGH READINGS OF IRON, CHROMIUM, ALUMINUN ON OIL ANALYSIS. CYLS REMOVED FOR INSP. ALL OIL CONTROL RINGS FND STUCK W/LEAD BUILD-UP & ALL CYL WALLS FND WORN UP TO .014 INCH. ENG REMOVED FROM ACFTSDR 95ZZZX803Retainer · brokenANOTHER OPERATOR OF CESSNA 421'S ADVISED THE NEED TO REMOVE VALVE SPRINGS TO CHECK THE SPRING RETAINER (PN 642343) FOR BREAKAGE DUE TO VALVE GUIDE NOT BEING INSTALLED ALL THE WAY - THEREBY CAUSED 'ROCKING' AS SEAT IS HELD OFF OF CYLINDER. THIS OPERATOR DISCOVESDR 95ZZZX2662Intake Pipe · crackedINDUCTION PIPE CRACKED, APPROXIMATELY 1.50 INCHES LONG.SDR 95ZZZX2435Piston · failedPISTON SKIRT FAILED AT LOWER RING LAND ON THRUST SIDE. DEBRIS EXTENSIVELY DAMAGED CRANKCASE, CRANKSHAFT, CAMSHAFT, RODS, ADJACENT PISTONS AND CYLINDERS. ALSO, THE ENTIRE OIL SYSTEM WAS CONTAMINATED.SDR 95ZZZX927Valve · brokeAPPROXIMATELY 10 MINUTES AFTER TAKEOFF A SLIGHT INTERRUPTION OF POWER WAS NOTED WHICH RETURNED IMMEDIATELY TO NORMAL. PRESSURES AND TEMPS INDICATED AN INCREASE IN OIL TEMP AND A DECREASE IN OIL PRESSURE. ENGINE WAS FEATHERED AND RETURNED A/C TO HNL. EXAMINASDR 95ZZZX636Rocker Arm · brokeWHILE IN CRUISE FLIGHT, ENGINE WOULD ONLY DEVELOP APPROXIMATELY 1300 PRM. AIRCRAFT MADE PRECAUTIONARY LANDING. INVESTIGATION SHOWED BOTH ROCKER ARMS BROKEN CYLINDER NR 2. EXHAUST ROCKER SHOWED EVIDENCE OF BEING CRACKED FOR LONG PERIODS OF TIME. BELIEVED THSDR 95ZZZX2127Rings · excess wornDURING HOT ENGINE START, A CARBURETOR FIRE RESULTED. FIRE EXTINGUISHED USING DRY CHEM. ENGINE WASHED DOWN AND FLOWN. EXCESS OIL CONSUMPTION NOTED (1 GALLON PER HOUR). TEAR DOWN OF ENGINE REVEALED WORN PISTON RINGS AND GUMMED-UP INTAKE VALVES PLUS GRIT IN OISDR 95ZZZX1221Valve Cover · crackedOPERATOR/OWNER COMPLAINED OF OIL LEAK ON LEFT ENG. REMOVED COWLING AND FOUND OIL AROUND 2-4-6 CYLINDER AREAS. WASHED DOWN ENGINE. RAN AND SHUT DOWN ENGINE, FOUND OIL SEEPING FROM AROUND NR 4 CYLINDER VALVE COVER/GASKET. WASHED AREA AND RAN ENGINE AGAIN. FSDR 95ZZZX739Pushrod · bentDURING FLIGHT, PILOT EXPERIENCED SUDDEN LOSS OF POWER AND ENGINE ROUGHNESS. AN UNEVENTFUL AIRPORT LANDING WAS MADE. INSPECTION BY MAINTENANCE PERSONNEL REVEALED NR 3 CYLINDER INTAKE PUSHROD BENT. OIL ADDITIVE, LW16702, ADDED 2 HOURS PREVIOUSLY. ENGINE MAJOSDR 95ZZZX605Valve · excess wearCONTINENTAL O470F ENGINE WITH ONLY 165 HOURS SINCE FACTORY REMANUFACTURE. EXHAUST VALVE STEMS SHOW EXTREME WEAR. FOUND VALVE GUIDES TO BE NITRALLOY.SDR 95ZZZX952Retainer · missingDISASSEMBLY OF THE CYLINDER DISCLOSED A MISSING RETAINER FOR THE EXHAUST VALVE SPRING. WEAR INTO THE ALUMINUM HEAD WAS NOTED. 'NR 2 CYLINDER'.SDR 95ZZZX1002Cylinder · crackedCYLINDER CRACKED BETWEEN INTAKE AND EXHAUST SEATS.SDR 95ZZZX1001Cylinder · guide failedACFT OWNER'S BOOK ON THE O300A CALLS FOR 80/87 FUEL. HOWEVER, THE LEAD HAS BEEN REMOVED FROM 80/87, SO NO LUBRICATION COULD TAKE PLACE. CONTINENTAL USES LEAD IN THE FUEL FOR LUBE. VALVE GUIDES TOTALLY WORE OUT CAUSING LOW COMPRESSION AND HIGH OPERATION TEMPSDR 95ZZZX1099Cylinder · crackedDURING A 200-HOUR INSPECTION ALL CYLINDERS OF LT ENGINE PASSED A DIFFERENTIAL COMPRESSION TEST. CLOSER INSPECTION OF CLYLINDER ASSYS REVEALED CRACKS BETWEEN COOLING FINS OF SEVERAL CYLINDERS IN THE EXHAUST PORT AREA. NOTE: CRACKS ORIGINATING IN THIS AREA ARSDR 95ZZZX687Valve · brokenTHE AIRCRAFT RETURNED SHORTLY AFTER TAKEOFF WITH A ROUGH RUNNING ENGINE. THE EXHAUST VALVE, THE UPPER VALVE SPRING SEAT, PN LW-16475, AND THE VALVE STEM CAP, PN 17C19386, WERE FOUND BROKEN.SDR 95ZZZX586Cylinder · defectiveROCKER ARM BOSS HELI-COIL THREADS STRIPPED. HELI-COIL WAS LOOSE IN THREADS.SDR 95ZZZX585Valve · excess wearINSPECTION FOUND 2 EACH, PN 646283, VALVES OUT OF A FACTORY REMANUFACTURED ENGINE WITH TEST CELL BREAK-IN TIME ONLY. (LESS THAN 3 HOURS). THE VALVE STEM ENDS WERE THE ROCKER ARM CONTACTS, THE VALVES WERE WORN EXCESSIVELY. THE VALVES WERE PITTED AND CONCAVE.SDR 95ZZZX584Piston Ring · stickingTHIS ENGINE HAD TEST TIME ONLY ON A FACTORY REMANUFACTURED ENGINE. ALL SIX BOTTOM PISTON RINGS WERE EMBEDDED WITH ALUMINUM CAUSING RINGS TO 'STICK'. THIS ALSO CAUSED THE PISTONS TO REJECT.SDR 95ZZZX635Cylinder · excess wearENGINE TT SINCE FACTORY OVERHAUL, 7726 HOURS. REBUILT 1-14-92. INSTALLED 2-12-92. CYLINDER HEAD DATES 8-91, ALL 6 CYLNDERS, LOW COMPRESSIONS ALL CYLINDERS. CYLINDERS ARE WORN BEYOND SERVICEABLE LIMITS AND SEVERE RING WEAR. ROCKER SHAFTS ARE SEVERELY WORN,SDR 95ZZZX1148Cylinders · excess wornFACTORY NEW CYLINDERS TT 581.4 HOURS. INSTALLED 2-1-91, LOW COMPRESSION ALL CYLINDERS. CYLINDERS ARE WORN BEYOND SERVICEABLE LIMITS AND HAVE SEVERE RING WEAR. ROCKER SHAFTS ARE SEVERELLY WORN AND UNAIRWORTHY.SDR 95ZZZX411Rings · defectiveOIL BLOWING OUT BREATHER. FOUND NR 1 CYLINDER AT 10/80. PULLED CYLINDER AND FOUND COMP. RINGS BROKEN IN MANY PIECES ABOUT .25 INCH TO 2.5 INCH. THESE RINGS ARE OF WRONG COMPOSITION. (BRITTLE).SDR 95ZZZX508Exhaust Valve · stickingLEFT ENGINE STARTED RUNNING ROUGH ON DESCENT INTO LEX. FOUND NR 5 CYLINDER WITH ZERO COMPRESSION, IT APPEARED THE EXHAUST VALVE WAS STICKING IN THE VALVE GUIDE AND NOT CLOSING COMPLETELY ON THE VALVE SEAT.SDR 95ZZZX490Valve · defectiveINSPECTION FOUND TWO INTAKE VALVES DEFECTIVE. ONE VALVE HAS OUT-OF-ROUND STEM. ONE VALVE HAS WARPED VALVE HEAD.SDR 95ZZZX488Rotor Cap · defectiveTHREE EACH VALVE ROTOR CAPS RECEIVED ON 3 NEW CYLINDERS. TWO OF THE 3 WILL NOT ROTATE. ONE OF THE 3 HAS NO INTERNAL PARTS. ONE VALVE ROTOR CAP BROKEN. TOTAL TIME 350 HOURS.SDR 95ZZZX414Cylinder · separationAIRCRAFT ENGINE, WHILE IN-FLIGHT, SUFFERED BARREL-TO-HEAD SEPARATION. SUSPECT CAUSE SEVERE METAL FATIGUE FROM WELDING MULTIPLE TIMES AND POSSIBLE IMPROPER WELDING PRACTICES AND MULTIPLE HEAT CYCLES. LYCOMING DOES NOT MANUFACTURE NEW CYLINDERS FOR THIS ENGINESDR 95ZZZX943Roto Coil · wornDURING TOP OVERHAUL, INSPECTION REVEALED WORN OUT EXHAUST AND INTAKE VALVE SPRING RETAINING ROTO-COILS.SDR 95ZZZX760Cylinder · excess clearanceDURING 100-HOUR ENGINE INSPECTION FOR AIRCRAFT ANNUAL INSPECTION, LOW COMPRESSION WAS NOTED ON CYLINDER NR 6. WHEN CYLINDER WAS REMOVED, SEVERE EXCESSIVE CLEARANCE WAS NOTED BETWEEN ROCKER SHAFT AND UNBUSHED ROCKER BOSSES ON A CYLINDER WITH 380 HOURS TT SINCE
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