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.

SDR 98ZZZX4465Valve Guide · wornDURING A ROUTINE COMPRESSION CHECK, LEAKAGE WAS FOUND PAST THE EXHAUST VALVE ON THE NR 3 CYLINDER. THE REMOVED CYLINDER, EXHAUST VALVE AND GUIDE WERE FOUND WORN OUT. SUBMITTER SUGGESTED POSSIBLE CAUSE AS DEFECTIVE PARTS AND/OR ASSEMBLY PROCESS FROM THE FACTOMay 20, 1997 · N954CC · Cessna 182QSDR 97ZZZX3695Valve · stuckENGINE RAN ROUGH AT TAKEOFF, AIRCRAFT LOST POWER. AIRCRAFT SUSTAINED SUBSTANTIAL DAMAGE DURING A FORCED LANDING. EXAMINATION FOR THE ENGINE REVEALED AN OPEN EXHAUST VALVE, CYLINDER NR 4. ENGINE HAD A CYLINDER, NR 4 EXHAUST VALVE STUCK.May 20, 1997 · N6950V · Mooney M20FSDR 97ZZZX3422Valve · brokenPILOT EXPERIENCED LOSS OF POWER DURING CRUISE FLIGHT. EXCESSIVE VIBRATION AND POWER LOSS LED HIM TO MAKE A PRECAUTIONARY/EMERG LANDING IN WHICH AIRCRAFT WAS HEAVILY DAMAGED. FAA/NTSB INSPECTED ENGINE, FOUND NR 3 CYLINDER EXHAUST VALVE BROKEN OFF AT BASE OF May 20, 1997SDR 97ZZZX3344Bolts · shearedABRUPT ENGINE ROUGHNESS NOTED IN-FLIGHT. RETURNED TO AIRPORT, INSPECTION REVEALED THAT 3 EACH CYLINDER STUDS AND 2 EACH THROUGH-BOLTS ON THE NR 4 CYLINDER HAD SHEARED OFF. ALL ENGINE INSTRUMENTS GAVE NORMAL INDICATIONS. ENGINE REMOVED AND SENT TO AN ENGINE May 19, 1997 · N5246E · Cessna A185FSDR 97ZZZX2612Cylinder · leaksDURING 50-HOUR INSPECTION, MECH TURNED PROP AND NOTICED A 'HISSING' SOUND EMITTING FROM NR 4 CYLINDER ON LT ENGINE. UPON CLOSER INSP, THE HISS WAS DETERMINED TO BE COMING FROM THE CHT PROBE HOLE. SLIGHT SIGNS OF SOOT IN AREA. CYLINDER CHECKED WITH DIFFERENTMay 19, 1997 · N402BF · Cessna 402BSDR 97ZZZX2598Screw · strippedDURING CYLINDER INSTALLATION ATTEMPTING TO TORQUE ROCKER SHAFT HOLD-DOWN SCREWS RESULTED IN 2 SCREWS STRIPPING BEFORE THE MINIMUM TORQUE OF 180 INCH/POUND WAS REACHED. THIS IS THE 2ND OCCURRENCE ON THIS ENGINE. BOTH TIMES THE CORRECTIVE ACTION WAS REPLACING May 19, 1997 · N3251C · Beech E35SDR 97ZZZX2899Seal · leakAFTER TAKEOFF DURING CLIMB-OUT, PILOT NOTICED FINE SPRAY OF OIL MIST FROM RT ENGINE OUTBOARD SIDE AND TRACE OF OIL LEAK BEGIN TO FORM. PILOT MADE AN UNEVENTFUL LANDING AND ENGINEERING INVESTIGATION WAS CARRIED OUT. NR 3 CYLINDER EXHAUST PUSHROD LOCKING CLIP May 17, 1997 · N666AW · Piper PA31310SDR 97ZZZX2816Exhaust Valve · leakFORTY HOURS AFTER CYLINDER ASSY REPLACED, ALLL EXHAUST VALVES WERE LEAKING ON COMPRESSION CHECK ON ALL 4 CYLINDERS.May 17, 1997 · N72742 · Cessna 140SDR 97ZZZX2708Piston Pin · failedCATASTROPHIC FAILURE AFTER TAKEOFF FROM CLEAR LAKE, CA ON 5-14-97. PILOT TURNED BACK AND MADE UNPOWERED LANDING AT AIRPORT. FOUND CYLINDER BROKEN OFF ENGINE. PISTON BROKEN, CRANKSHAFT BROKEN. PISTON PIN BROKEN IN HALF.May 14, 1997 · N739ZL · Cessna 172NSDR 97ZZZX2659Pushrod · failedBALL END OF PUSHROD BROKEN OFF. SUBITTER STATED A POSSIBLE MANUFACTURE MACHINING DEFECT.May 14, 1997 · N738QZ · Cessna 172NSDR 97ZZZX2607Cylinder · failedON A TRAINING FLIGHT, THE ENGINE STARTED RUNNING ROUGH. INSTRUCTOR REQUESTED DIRECT RETURN. WHITE SMOKE CAME FROM ENGINE, A LOUD BANG, FOLLOWED BY VERY ROUGH ENGINE AND PARTIAL POWER LOSS. ENGINE STOPPED, SAFE LANDING, CYLINDER HEAD AND TOP ONE-THIRD OF BARMay 14, 1997 · N148EL · Cessna 150MSDR HAIHEEA9859Cylinder · defectiveCYLINDER DOES NOT PERFORM TO SPECS.May 13, 1997 · N6123A · Hughes 269CSDR CA970527001Push Rod · bent(CAN) DURING CRUISE #2 ENGINE PRODUCED A LOUD AUDIBLE BANG AT ALTITUDE. THIS OCCURRED DURING THE FRIST POWER REDUCTION FOLLOWED BY A ROUGH RUNNING ENGINE. ALL ENGINE PARAMETERS, PRIOR TO THE BANG, WERE NORMAL. THE AIRCRAFT CONTINUED AND HALF WAY INTO THE TRIP May 12, 1997 · Doug R4D8SDR 97ZZZX2343Cylinder · head separatedCYLINDER HEAD SEPARATED FROM BARREL IN FLIGHT. PILOT NOTICED ROUGH ENGINE AND MADE PRECAUTIONARY LANDING. FAILED CYLINDER WAS 'LIGHT' CASTING WHILE OTHER FIVE WERE 'HEAVY' CASTING. HEAD SEPARATION ALSO CAUSED FUEL LINE SEPARATION AND EXHAUST Y-PIPE DAMAGE. May 11, 1997 · N727NE · Cessna U206GSDR AU970705Cylinder · cracked(AUS) ENGINE CYLINDER CRACKED BETWEEN TOP SPARK PLUG HOLE AND INJECTOR NOZZLEMay 10, 1997 · Cessna 210MSDR AU970704Cylinder · cracked(AUS) ENGINE CYLINDER CRACKED BETWEEN TOP SPARK PLUG HOLE AND INJECTOR NOZZLE - SUSPECT CYLINDER HAD BEEN WELD REPAIREDMay 10, 1997 · Cessna 210MSDR AU970530Stud · broken(AUS) NO1 CYLINDER EXHAUST VALVE ROCKER STUD BROKEN - INLET VALVE BROKEN AND PUSHROD BENTMay 9, 1997 · Cessna 172NSDR AU970549Cylinder · broken(AUS) NO4 CYLINDER HEAD SEPARATED FROM THE BARREL - INVESTIGATION FOUND THAT THE FAILURE OCCURRED AT THE TOP OF THE THREADED SECTION OF THE HEAD TO BARREL JUNCTIONMay 8, 1997 · Cessna 182QSDR 97ZZZX2803Cylinder · crackedDURING AN ANNUAL INSPECTION OF ENGINE, CRACKS WERE FOUND IN THE TWO REAR CYLINDERS IN EXHAUST PORTS. ONE HAD CRACKS IN THE INNER (TOWARD CENTER OF HEAD) AND AFT. OTHER IN INNER ONLY. BOTH WERE INSTALLED DEC, '91 AND HAD ACCUMULATED APPROXIMATELY 300 HOURS.May 8, 1997 · N4749L · Piper PA28180SDR AU970565Piston Pin · galled(AUS) PISTON PIN PLUG LOOSE AND GALLING ON CYLINDER BOREMay 5, 1997 · Cessna 150BSDR 97ZZZX2660Cylinder · crackedDURING AN INSPECTION, CYLINDER WAS FOUND WITH LOW COMPRESSION/EXHAUST VALVE LEAKAGE. CYLINDER WAS REMOVED FOR REPAIR AND SENT TO ENGINE SHOP. AFTER CLEANING, NOTED THE HEAD WAS CRACKED FROM THE ROCKER COVER FLANGE THROUGH THE EXHAUST PORT AND ACROSS TO THE UMay 5, 1997 · N8220X · Cessna 172BSDR AU971333Cylinder · cracked(AUS) ENGINE CYLINDER CRACKED FROM INDUCTION TUBE MOUNT FACE TOWARDSTHE INLET VALVE SEAT. CRACK LENGTH 25.4MM (1IN).May 2, 1997 · Piper PA31PSDR 97ZZZX2097Retainer Key · mismanufacturedKEY NOT CUT ON ONE SIDE. PART IS IN A COMPLETE POWER SECTION. NEW CYLINDER KIT S/N 97-2806.May 2, 1997SDR 97ZZZX2620Cylinder · studs failPILOT HEARD AND FELT ABRUPT CHANGE IN ENGINE 10 MINUTES INTO FLIGHT. UNEVENTFUL RETURN TO BASE WITH ENGINE INSTRUMENTS NORMAL. NR 4 CYLINDER HAD SHEARED ALL 8 STUDS AND HAD SEPARATED .50 INCH FROM CASE. ENGINE HAD HISTORY OF PROP STRIKE TEAR-DOWN 460 HRS PRMay 1, 1997 · N5246E · Cessna A185FSDR CA970514004Cylinder · cracked(CAN) DURING INSPECTION #9 CYLINDER WAS FOUND CRACKED ON THE TOP BETWEEN THE TWO SPARK PLUG HOLESApr 30, 1997 · Dhav DHC2MK1SDR CA970506013Piston Pin · broken(CAN) CYLINDER WAS REMOVED DUE TO LOW COMPRESSION AND INCREASE IN OIL CONSUMPTION. INSPECTION FOUND THE HEADS OF THE PISTON PINS MUSHROOMED OVER. FURTHER INSPECTION REVEALED THE ALUMINUM PLUG BROKEN IN HALF. NO DAMAGE WAS FOUND ON THE STEEL PIN. INSPECTION OF Apr 30, 1997 · Cessna 340CESSNASDR AU970443Valve · failed(AUS) RH ENGINE NO1 CYLINDER EXHAUST VALVE FAILED - DAMAGE CAUSED TO PISTON AND CYLINDER HEAD - PART OF VALVE ALSO PASSED THROUGH THETURBOCHARGER TURBINE - NO3 CYLINDER EXHAUST VALVE ALSO CRACKEDApr 28, 1997 · Piper PA31350SDR 97ZZZX2941Valve · deformedAT 308 HRS SMOH, ANNUAL INSPECTION REVEALED NR 2 CYLINDER HAD NO COMPRESSION. CYLINDERS WERE ECI CERMINIL CYLINDERS. UPON REMOVAL, FOUND EXHAUST VALVE AND SEAT DEFORMED. NEW CYLINDER INSTALLED ALL OPS CHECK GOOD. 314 HRS SMOH, PILOT REPORTS AIRCRAFT SEEMS Apr 28, 1997 · N4182H · Mooney M20JSDR 97ZZZX2111Piston · burnedPILOT EXPERIENCED RPM DROP, LOSS OF OIL PRESSURE, AND ROUGHNESS. LANDED ON CITY STREET. NO AIRCRAFT DAMAGE. FOUND OIL APPARENTLY EXHAUSTED THROUGH CRANKCASE BREATHER. NR 4 CYLINDER PISTON BURNED THROUGH AFT SIDE UNDER RINGS .3750 INCH HOLE. NR 3 CYLINDER Apr 28, 1997 · N757CH · Cessna 152SDR AU970462Pushrod · distorted(AUS) NO4 CYLINDER EXHAUST VALVE PUSHROD BENT - NO4 AND NO5 CYLINDER EXHAUST VALVES STIFF - NO2 CYLINDER INLET VALVE ROUGH INOPERATION - NO4 CYLINDER PISTON HAD CONTACTED THE NO4 EXHAUST VALVE - CYLINDERS ARE SUPERIOR ITEMS PNO SA52000A1Apr 24, 1997 · Cessna 207SDR 97ZZZX2037Piston Pin · defectiveAD 97-01-03 AND LYC SB 527B DO NOT REFERENCE VO540 ENGINES IN MODELS AFFECTED, BUT 4 OF 6 PISTON PINS IN ENGINE HAD TO BE REPLACED IN C/W THE SB REQUIRED ACTION. NOTE: 6-CYLINDER HELICOPTER ENGINES ARE LISTED IN WARRANTY LABOR ALLOWANCE AND A VO540 ENGINE ISApr 24, 1997 · N62392 · Hiller UH12ESDR 97ZZZX2052Cylinder · crackedDURING ROUTINE MAINTENANCE, NR 1 AND NR 3 CYLINDERS WERE FOUND CRACKED IN THE INTAKE PORT AREA. CRACKS WERE BETWEEN FIRST AND SECOND COOLING FINS FROM THE TOP AND PROGRESSED TO THE THINNER AREA OF THE PORT. CRACKS NOTED BY A GREENISH TO BLACK STAIN LOOKING FApr 22, 1997 · N82606 · Piper PA31PSDR 97ZZZX2051Cylinder · crackedDURING ROUTINE MAINTENANCE, NR 1 AND NR 3 CYLINDERS WERE FOUND CRACKED IN THE INTAKE PORT AREA. CRACKS WERE BETWEEN FIRST AND SECOND COOLING FINS FROM THE TOP AND PROGRESSED TO THE THINNER AREA OF THE PORT. CRACKS NOTED BY A GREENISH TO BLACK STAIN LOOKING FApr 22, 1997 · N82606 · Piper PA31PSDR 97ZZZX2050Cylinder · crackedDURING MAINTENANCE WITH INTAKE PIPE REMOVED, INTAKE GUIDE WAS FOUND MOVING WITH THE VALVE. CYLINDER REPLACED, TEAR DOWN REPORT REQUESTED FROM ENGINE OVERHAULER. REPORT STATED A CRACK HAD CAUSED THE PROBLEM. OUT OF 4 ENGINES OF THIS TYPE MAINTAINED BY THIS FApr 22, 1997 · N82606 · Piper PA31PSDR 97ZZZX2044Cylinder · separatedACFT LOST NR 5 CYLINDER IN CRUISE FLIGHT TO JBR. CYLINDER SEPARATED ABOUT 1 INCH INBOARD OF THREADED AREA IN STEEL SLEEVE. AREA CRACKED IS 360 DEGREES AND EXPOSED TOP RINGS ON PISTON CAUSING METAL CONTAMINATION IN ENGINE. OIL PRESSURE WAS LOST 4 MINUTES BEFApr 22, 1997 · N421FC · Cessna 421CSDR 97ZZZX2071Cylinder · separatedRIGHT ENGINE NR 2 CYLINDER SEPARATED FROM CASE (HPN). REMOVED AND REPLACED ENGINE ASSY. CAUSE UNKNOWN AT THIS TIME.Apr 21, 1997 · N3643D · Piper PA60600SDR 97ZZZX2049Piston · wrong partUPON DISASSEMBLY OF ENGINE, FOUND WRONG PISTONS INSTALLED. RECORDS INDICATE PISTONS SOLD AS PART OF A TOP OVERHAUL KIT WITH CHROME CYLINDERS (4/1994). CYLINDERS REMOVED FOR GLAZING AND 3 PISTONS WERE SCORED ENOUGH TO REQUIRE REPLACEMENT. REPLACED ALL 6 WITHApr 21, 1997 · N6480N · Cessna T210NSDR 97ZZZX2001Cylinder · separatedAIRCRAFT EXPERIENCED A SUDDEN LOSS OF POWER. EMERGENCY LANDING MADE AT MOUNTAIN HOME AIR FORCE BASE. NR 9 CYLINDER HEAD HAD SEPARATED JUST ABOVE THE TOP OF PISTON TRAVEL. FATIGUE FRACTURE APPEARS TO ORIGINATE AT THE EXHAUST VALVE SEAT. 675 SMOH.Apr 21, 1997 · N4397S · Airtrc AT301SDR 97ZZZX2854Valve · failedVALVE MALFUNCTION OCCURRED DURING TAKEOFF AT APPROXIMATELY 2,450 RPM. (AIRPORT AT 5,100 FEET). OAT 20 DEGREES FAHRENHEIT.Apr 12, 1997 · N38X · Gulstm AA5BSDR CA970602002Cylinder · separated(CAN) DURING TAKEOFF AN OIL LEAK WAS DETECTED ON #2 ENGINE. TAKEOFF WAS ABORTED. MAINTENANCE FOUND THE CAUSE OF THE OIL LEAK WAS SEPARATION OF THE #2 CYLINDER HEAD FROM THE BARREL. THE CYLINDER WAS REPLACED.Apr 11, 1997 · Piper PA31350SDR AU970436Valve · unapproved part(AUS) WHEN FITTING A NEW CYLINDER KIT TO THE ENGINE IT WAS FOUND THAT THE INCORRECT EXHAUST VALVE WAS FITTED TO THE CYLINDER - EXHAUST VALVE PNO LW16740 (ANGLE VALVE CYLINDER) WAS FITTED INSTEAD OFTHE CORRECT PNO LW19001 - PERSONNEL/MAINTENANCE ERROR - UNAPPROApr 10, 1997SDR 97ZZZX1842Cylinder · separatedAIRCRAFT WAS EN ROUTE AT CRUISE POWER. PILOT REPORTED LEFT ENGINE STARTED RUNNING ROUGH. HE DIVERTED AND LANDED AT YNG. FOUND NR 13 CYLINDER HEAD SEPARATED FROM CYLINDER BARREL.Apr 10, 1997 · N907Z · Doug DC3CSDR AU970515Piston · burnt(AUS) PISTON BURNT AND TORCHED - ENGINE METAL CONTAMINATIONApr 7, 1997 · Beech 9555SDR AU970478Piston · burnt(AUS) ENGINE PISTON BURNT - ENGINE METAL CONTAMINATION - SUSPECT CAUSED BY POORLY OVERHAULED FUEL SYSTEMApr 7, 1997 · Beech 9555SDR AU970441Cylinder · cracked(AUS) NO4 CYLINDER CRACKED IN AREA BEHIND ROCKER COVERS - OIL LEAKApr 7, 1997 · Cessna 337FSDR 97ZZZX2838Intake Valve · wornTHE VALVE STEM UNDER THE KEEPER'S WAS HEAVILY WORN. THIS CONDITION WAS ALSO FOUND ON 4 OTHER VALVES (INTAKE) ALL HAVING THE SAME TOTAL TIME AND PART NUMBER. THE 6TH VALVE WAS A LYCOMING WITH THE SAME TIME AND INSTALLATION DATE. NO PROBLEM FOUND.Apr 7, 1997 · N36MV · Hiller UH12ESDR 97ZZZX1825Valve · failedTHE HELICOPTER WAS RUNNING ROUGH SO A COMPRESSION CHECK WAS RUN. THE NR 2 CYLINDER HELD NO COMPRESSION AND WAS REMOVED FOR INSPECTION. NOTED A .1250 INCH BY .25 INCH SECTION OF THE VALVE FACE WAS MISSING. THE MISSING SECTION WAS IRREGULAR IN SHAPE AND APPEAApr 7, 1997 · N36MV · Hiller UH12ESDR 97ZZZX2656Cylinder · crackedWHILE CHANGING PUSHROD SEALS, A CRACK WAS FOUND IN THE CYLINDER SLEEVE, THE CRACK IS ABOUT 1.5 INCHES LONG AND TRAVELED RADIALLY. THE CRACK IS ABOUT 2 INCHES UP FROM THE BASE FLANGE.Apr 4, 1997 · N45511 · Cessna 150MSDR 97ZZZX1846Rocker Shaft · failedON APPROACH, AIRCRAFT'S RIGHT ENGINE STARTED RUNNING ROUGH. FOUND NR 6 CYLINDER EXHAUST ROCKER SHAFT HAD CRACKED IN HALF CAUSING SHAFT TO FALL OUT OF THE CYLINDER. THIS CAUSED THE EXHAUST VALVE NOT TO OPEN.Apr 2, 1997 · N932H · Doug DC3CSDR 97ZZZX2043Retainer · crackedNR 3 AND NR 4 CYLINDER EXHAUST VALVE RETAINER CRACKED. 1 EACH CYLINDER. INSPECTED ALL OTHER CYLINDERS. NONE FOUND DEFECTIVE.Apr 1, 1997 · N1562G · Cessna 421B
Back to JASC 8530