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 97ZZZX2042Pushrod · loose endRUN-OUT CORE ENGINE THAT WAS DISASSEMBLED FOR PUSHRODS FOR C/W AD 95-3-10. THIS ENGINE HAD ONE SUPERIOR AIR PARTS PUSHROD WITH LOOSE END.SDR 97ZZZX2041Retainer · crackedNR 5 CYLINDER VALVE RETAINER DEFECT. CHECKED TWO CYLINDERS ON THIS RUN-OUT CORE. ONE GOOD AND NR 5 WAS NOT DUE TO INTAKE VALVE SPRING RETAINER CRACKED.SDR 97ZZZX1988Push Rod · crackedPUSH ROD CRACKED BOTH ENDS. CRACKS APPROXIMATELY .50 INCH LONG. AD'S 80-25-02K2 AND 95-03-10 DO NOT APPLY. ENGINE FACTORY REMANUFACTURED APPROXIMATELY 3300 HOURS AGO. FIELD OVERHAUL APPROXIMATELY 900 HOURS AGO. RECORDS WOULD INDICATE 3300 HOURS ON PUSH ROSDR 97ZZZX1934Valve Guide · failedEXHAUST VALVE GUIDE BROKE UP LETTING THE EXHAUST VALVE LOOSEN IN THE CYLINDER. EXHAUST VALVE DID NOT FAIL. PIECES FROM THE GUIDE JAMMED THE TURBOCHARGER TURBINE WHEEL DESTROYING THE TURBOCHARGER AND CAUSING LOSS OF POWER.SDR 97ZZZX2661Cylinder · failedWHILE PERFORMING A POWER OFF STALL TO FULL POWER RECOVERY, PILOT FELT ENGINE BEGIN TO RUN ROUGH. WHILE RETURNING TO AIRPORT, IT STARTED TO GET WORSE. PILOT SUCCESSFULLY LANDED AIRCRAFT. UPON INSPECTION, FOUND NR 3 CYLINDER SPLIT IN HALF ABOUT 2 INCHES UP FRSDR AU970703Cylinder · worn(AUS) NO6 CYLINDER FUEL INJECTOR NOZZLE HOLE WORN OUTSDR CA970715019Valve Seat · cocked(CAN) DURING INSPECTION #6 CYLINDER WAS FOUND TO HAVE ZERO COMPRESSION. ON REMOVAL OF THE CYLINDER IT WAS FOUND THAT THE EXHAUST VALVE SEAT HAD LIFTED AND WAS COCKED AT AN ANGLE HOLDING THE EXHAUST VALVE OPEN. THIS RESULTED IN LACK OF COMPRESSION AND CAUSED ADSDR 97ZZZX1949Cylinder · crackedNR 2 CYLINDER FOUND CRACKED AT THE MOLD LINE THROUGH THE SPARKPLUG HOLE OUT ONTO THE TOP OF THE CYLINDER, THE INTAKE SIDE, RIGHT ENGINE.SDR AU970281Valve · failed(AUS) NO3 CYLINDER EXHAUST VALVE HEAD FAILEDSDR AU970274Cylinder · worn(AUS) ENGINE CYLINDER (PNO 649168CEA3) BORES WORN BEYOND LIMITS - CYLINDERS ARE CERMICHROME TYPESDR 98ZZZX4461Valve Guide · wornDURING A ROUTINE COMPRESSION CHECK, EXCESSIVE LEAKAGE PAST THE PISTON RINGS WAS FOUND ON THE THE NR 2 CYLINDER. THE REMOVED CLYINDER WAS FOUND WORN OUT AND THE PISTON RINGS STUCK IN THE RING GROOVES. SUBMITTER SUGGESTED POSSIBLE CAUSE AS EXCESSIVE LEAD SLUDGSDR 97ZZZX1589Cylinder · head separatedDURING ANNUAL INSPECTION, FOUND NR 2 CYLINDER HEAD SEPARATING FROM BARREL. THE HEAD WAS TURNED COUNTERCLOCKWISE 4 DEGREES AND WAS .0625 INCH FARTHER FROM FIRST CYLINDER FIN THAN OTHER CYLINDERS. LEAK CHECK (PARAGRAPH C TCM SB 96-12) REVEALED LEAK. COMPRESSISDR AU970231Cylinder · stripped(AUS) ENGINE CYLINDER HEAD FUEL NOZZLE RETAINING THREADS STRIPPED - FUEL NOZZLE LOOSE - CYLINDER IS 0.0015IN PLUS OVERSIZE WITH UNKNOWN TOTAL TIME IN SERVICE - AD/CON/60 CARRIED OUT 50 HOURSPRIOR TO FAILURESDR 97ZZZX1367Cylinder · crackedWHILE EN ROUTE, ENGINE STARTED TO RUN ROUGH. ENGINE WAS SECURED. FOUND NR 11 CYLINDER HEAD CRACKED. REPLACED NR 11 CYLINDER WITH A YELLOW TAGGED UNIT. ENGINE OPS CHECKED SATISFACTORY.SDR CA970325002Cylinder Assy · cracked(CAN) DURING INSPECTION FUEL STAINS WERE FOUND ON ONE CYLINDER OF THE LH ENGINE AND ONE CYLINDER OF THE RH ENGINE IN THE AREA OF THE COOLING FINS. FURTHER INSPECTION FOUND THE CYLINDERS WERE CRACKED. MAINTENANCE HAVE CONCLUDED THE CYLINDERS ARE CRACKING AS A ASDR AU970278Cylinder · cracked(AUS) NO1 CYLINDER CRACKED FROM BOTH SPARK PLUG HOLES - CRACK LENGTHS 19.05MM (0.75IN) - EXHAUST VALVE SEAT BORE CRACKED - CRACK LENGTH 12.7MM (0.5IN)SDR 97ZZZX1583Spring · brokenENGINE WAS RECEIVED AT FACILITY FOR INSPECTION DUE TO METAL CONTAMINATION. UPON DISASSEMBLY OF THE CYLINDERS, NOTED THERE WAS ONE BROKEN VALVE SPRING ON EACH CYLINDER IN THE INTAKE POSITION. CYLINDERS NR 1, NR 3, AND NR 4 HAD BROKEN INNER VALVE SPRINGS AND CSDR 97ZZZX1582Spring · brokenENGINE WAS RECEIVED AT FACILITY FOR INSPECTION DUE TO METAL CONTAMINATION. UPON DISASSEMBLY OF THE CYLINDERS, NOTED THERE WAS ONE BROKEN VALVE SPRING ON EACH CYLINDER IN THE INTAKE POSITION. CYLINDERS NR 1, NR 3, AND NR 4 HAD BROKEN INNER VALVE SPRINGS AND CSDR 97ZZZX2613Cylinder · studs failedPOSSIBLE 'BOGUS' PARTS. ON 3-7-97, LT ENGINE WENT ROUGH WITH OIL LEAKING OUT OF COWLING. AFTER A ROUTINE LANDING, INSPECTION FOUND CYL NR 6 HAD SEVERAL HOLD-DOWN STUDS BROKEN. THE BROKEN UNITS WERE SENT TO LYC TO DETERMINE CAUSE OF FAILURE. REPORT LH10, 99SDR 97ZZZX1319Spring · brokeDURING ASSEMBLY OF THIS ENGINE, 6 SHROUD TUBE SPRINGS WERE INSTALLED, 3 BROKE WHEN THE NUT WAS TIGHTENED. THESE SPRINGS WERE SUPPLIED AS PART OF A PACKET SET FROM SUPERIOR AIR PARTS.SDR 97ZZZX1237Cylinder · defectiveAFTER THIS CYLINDER WAS INSTALLED, THE ENGINE OIL CONSUMPTION INCREASED. EVEN AFTER A SUFFICIENT BREAK-IN PERIOD, THE CONSUMPTION DID NOT DROP. AFTER APPROXIMATELY 162 HOURS, THE ENGINE RAN EXTREMELY ROUGH EVEN WITHOUT THE MAIN ROTOR ENGAGED. THE SPARK PLUGSDR 97ZZZX1233Cylinder · crackedWHILE PERFORMING TCM SB 96-12, CONTINUED AIRWORTHINESS INSTRUCTIONS FOR TCM CYLINDERS, BUBBLES WERE FOUND ACCUMULATING AROUND THE NR 2 CYLINDER UPPER SPARK PLUG HOLE. INSPECTION REVEALED A CRACK AT THE SPARK PLUG HOLE. THE CRACK ORIGINATED AT THE 3 O'CLOCK PSDR 97ZZZX1232Cylinder · crackedNR 3 CYLINDER WAS REMOVED DUE TO LOW COMPRESSION. THE CYLINDER WAS SENT FOR INSPECTION. THE CYLINDER INSPECTION REVEALED A CRACK WHICH BEGAN AT THE SPARK PLUG HOLE AND TERMINATED AT THE INTAKE VALVE SEAT.SDR CA970325001Cylinder Assy · cracked(CAN) DURING INSPECTION FUEL STAINS WERE FOUND AT THE COOLING FIN AREA ON ONE OF THE CYLINDERS. THE CYLINDER WAS REMOVED. FURTHER INVESTIGATION REVEALED A CRACK STARTING ABOVE THE VALVE SEAT UP AND TOWARD THE INTAKE PORT. THE CYLINDER WAS REPLACED.SDR CA970312008Cylinder · cracked(CAN) DURING INSPECTION THE #5 CYLINDER WAS FOUND CRACKED FROM THE FRONT SPARK PLUG HOLE TO THE REAR SPARK PLUG HOLE, ACROSS THE TOP OF THE CYLINDER BETWEEN THE COOLING FINS. THE CYLINDER WAS REPLACED.SDR 97ZZZX1102Cylinder · failedENGINE RAN ROUGH ON START. REMOVED COWLING. RESTARTED ENGINE. SHAKING VIOLENTLY. REMOVED ROCKER COVER. ENTIRE ROCKER ARMS, PINS, AND BOSSES FELL IN COVER. SUSPECT VALVE STUCK.SDR AU970219Cylinder · cracked(AUS) NO1, NO3 AND NO4 CYLINDERS CRACKED FROM LOWER SPARK PLUG HOLES -CRACKS HEADING TOWARDS EXHAUST VALVE SEAT - CYLINDERS WERE NITRIDED ITEMS AND HAD COMPLETED TWO ENGINE LIVESSDR 97ZZZX1838Cylinder · excess wornREMOVED ALL CYLINDERS FROM AN 850-HOUR FACTORY REMANUFACTURED (ZERO TIME) ENGINE DUE TO LOW COMPRESSION. FOUND ALL CYLINDERS WORN .009 INCH - .011 INCH OVER NEW SPECS. OPERATOR KEEPS OIL SAMPLES WITH NO INDICATIONS. NORMAL OIL CHANGES AND GOOD PILOT OPERATISDR 97ZZZX1641Cylinder · failedCYLINDER HEAD CAME OFF IN-FLIGHT 2-28-97. NO DAMAGE OR OIL LEAK OCCURRED. REPLACED CYLINDER.SDR 97ZZZX1153Cylinder · crackedWHILE TROUBLESHOOTING A LEAKING INTAKE VALVE GUIDE SEAL, FOUND A CRACK IN THE NR 1 CYL EXHAUST PORT. FOUND SAME CRACKS IN NR 4 AND NR 5 CYLINDERS. YOU CANNOT SEE THEM WITHOUT DROPPING THE EXHAUST STACKS OFF THE ENGINE. THESE CYLINDERS HAD APPROX 850 HOURS SDR 97ZZZX1159Piston · brokenINSTALL NEW TCM CYLINDER AND VALVE ASSY USED SA 631475 PISTON DUE TO WEIGHT DIFFERENCE (TO BALANCE PISTON SET). INSTALL TCM RING SET. FLEW 228.1 HOURS. REMOVE CYL DUE TO ENG MISSING. FOUND TOP OF PISTON AND 1ST RING GLAND BROKEN. TOP 2 RINGS BROKEN. REASOSDR 97ZZZX1133Cylinder · not to specDURING ASSEMBLY OF ENGINE, MEASURED DRY TAPPET CLEARANCE FROM .107 INCH TO .187 INCH. LYC OHM REQUIRES .028 INCH TO .080 INCH. RETURNED 6 CYLINDERS TO EC/SW WHERE THEY CUT/REMOVED MATERIAL FROM THE CYL FLANGE. CYLINDERS WERE RE-INSTALLED. THESE CYLINDERS JSDR 97ZZZX1063Cylinder · deterioratedINSTALLED 4 NEW CYLINDERS ON OVERHAULED ENGINE. COMPRESSION LOSS STARTED AT ABOUT 300 HOURS THROUGH RINGS AND EXHAUST VALVE SEAT. PULLED CYLINDERS, FOUND BADLY HEATED EXHAUST STEM AND EXHAUST SEAT. EXHAUST VALVES ERODED AND BADLY PITTED. INSTALLED ADDITIONSDR CA970228005Plug Piston Pin · broken(CAN) PILOT NOTICED RISE IN OIL TEMPERATURE AND SMOKE FROM #2 ENGINE. ENGINE WAS SHUTDOWN AND PRECAUTIONARY LANDING WAS CARRIED OUT. POST FLIGHT INSPECTION FOUND THE #2 ENGINE, #5 CYLINDER PISTON PIN PLUG BROKEN AND THE DEBRIS HAD SEIZED THE RINGS CAUSING THE SDR AU970417Cylinder · glazed(AUS) ENGINE CYLINDERS GLAZED - VALVE GUIDES WORN - NO2 CYLINDER ALSO CONTAINED A BROKEN OIL CONTROL RING - AIRCRAFT HAD NOT BEEN OPERATATED FOR SEVERAL YEARS AND IT IS SUSPECTED THAT THE ENGINES HAD NOT BEEN INHIBITED IN ANY WAYSDR AU970295Valve · faulty(AUS) NO4 CYLINDER EXHAUST VALVE FAULTY - FURTHER INVESTIGATION FOUND NO3 CYLINDER EXHAUST VALVE IN SIMILAR CONDITION - METAL CONTAMINATION OF OIL SYSTEMSDR CA970226005Cylinder · cracked(CAN) COMPRESSION CHECK AT INSPECTION REVEALED A CRACKED #1 CYLINDER. THE CRACK WAS AT THE LOWER SPARK PLUG HOLE.SDR 97ZZZX977Cylinder · wornDURING 100 HOUR INSPECTION, COMPRESSION CHECK REVEALED ALL SIX CYLINDERS LOW AS FOLLOWS: 35/57/50/51/49/51. CUSTOMER REPORTED USING 1 QUART PER HOUR PRIOR TO INSPECTION. REGULAR SOAP AT 50-HOUR OIL CHANGE REVEALED NO MAJOR PROBLEMS. TOTAL TIME 793.8 HOURS SDR 97ZZZX975Valve · wornDURING 100 HOUR INSPECTION, FOUND NR 1 CYLINDER READING 20/80 DURING COMPRESSION CHECK, ALSO, ALL OTHER CYLINDERS IN LOW SIXTIES. TOTAL TIME 824.8 HOURS SINCE TCM. ZERO TIME REBUILD.SDR 97ZZZX967Cylinder · wearDURING 100-HOUR INSPECTION, COMPRESSION CHECK REVEALED ALL SIX CYLINDERS LOW. TOTAL TIME 360.5 HOURS SINCE RAM CONVERSION TO STC SE3631SW ON ALL CYLINDERS. SUSPECT OVERLEANING.SDR 98ZZZX4459Valve Guide · crackedA ROUTINE COMPRESSION CHECK INDICATES LEAKAGE ON THE NR 2 CYLINDER. FURTHER INVESTIGATION REVEALS A CRACK ON THE CYLINDER HEAD THAT EXTENDS FROM THE FUEL INJECTOR HOLE TO THE SPARK PLUG HOLE. SUBMITTER SUGGESTED POSSIBLE CAUSE AS DEFECTIVE CYLINDER HEAD INSTSDR 97ZZZX1195Spring · brokenAFTER AN INITIAL TEST FLIGHT OF 1.1 HOURS, IT WAS NOTED THAT A LARGE AMOUNT OF OIL HAD COLLECTED ON THE RT SIDE OF THE ENG. FURTHER INSP REVEALED THAT THE PUSHROD HOUSING ON THE INTAKE SIDE OF THE NR 1 CYL RETAINING SPRING WAS FOUND TO BE BROKEN. WHEN THE RESDR 97ZZZX1146Spring · brokenRECEIVING INSPECTION OF A NEWLY OVERHAULED ENGINE FOUND PUSH ROD HOUSING COULD BE POPPED OUT OF SEAT. REMOVED ROCKER COVER AND FOUND HOLD-DOWN SPRING BROKEN. FURTHER INVESTIGATION FOUND 3 OF 4 PUSH ROD SPRINGS BROKEN. SUBMITTER SUSPECTS SPRINGS MISMANUFACTUSDR 97ZZZX976Valve · failedDURING FLIGHT, PILOT EXPERIENCED ROUGH RUNNING AND POWER LOSS UPON INSPECTION OF CYLINDERS. FOUND NO COMPRESSION NR 2 CYLINDER. REMOVED CYLINDER, FOUND PISTON HEAD DAMAGED AND EXHAUST VALVE HEAD MISSING. VALVE STEM SEIZED IN GUIDE. SUBMITTER STATED NEEDS BSDR AU970084Cylinder · worn(AUS) ENGINE CYLINDER BORES EXCESSIVELY WORN IN TOP AND BOTTOM AREAS OF THE CYLINDER. PISTON RING CAUGHT IN WORN GROOVE CAUSING IT TO BREAK. ENGINE HAS CHROMED CYLINDERS INSTALLED AND IT IS SUSPECTED THAT THE ENGINE WAS OPERATING WITHOUT ADEQUATE LUBRICATION.SDR 98ZZZX2683Cylinder · failedEXHAUST VALVE FAILURE IN NR 3 CYLINDER RESULTED IN THE INGESTING OF THE VALVE INTO THE CYLINDER BORE. THIS CAUSED EXTENSIVE DAMAGE TO THE COMBUSTION CHAMBER AND PISTON. METAL WAS THEN PASSED THROUGH ENTIRE ENGINE OIL SYSTEM. DAMAGED PARTS INCLUDE ALL BEARINSDR AU970110Piston · cracked(AUS) NO1, NO3 AND NO5 PISTONS CRACKED IN AREA OF SKIRT OPPOSITE TO THE PISTON PIN BOSS - NO1, N3 AND NO5 INDUCTION TUBES FOUND LOOSE ALLOWING UNMETERED AIR INTO ENGINE CAUSING SUSPECTED LEAN MIXTURE - NO5 CYLINDER SPARK PLUGS IN POOR CONDITION - PISTONS ARE HSDR 98ZZZX895Cylinder · crackedNR 1 CYLINDER HAD CRACK AT UPPER SPARK PLUG BOSS. THIS ENGINE HAS HAD C/W SID 97-2, SID 97-3, AND PROPER MAINTENANCE. BAFFLING, FUEL SYSTEM SET-UP AND GENERAL MAINTENANCE HAVE BEEN CAREFULLY CONTROLLED ON THIS ENGINE.SDR 98ZZZX894Cylinder · crackedNR 4 CYLINDER HAD CRACK AT UPPER SPARK PLUG BOSS. THIS ENGINE HAS HAD C/W SID 97-2, SID 97-3, AND PROPER MAINTENANCE. BAFFLING, FUEL SYSTEM SET-UP, AND GENERAL MAINTENANCE HAVE BEEN CAREFULLY CONTROLLED ON THIS ENGINE.SDR 98ZZZX875Cylinder · crackedNR 5 CYLINDER HAD CRACK AT UPPER SPARK PLUG BOSS. THIS ENGINE HAS HAD C/W SID 97-2, SID 97-3, AND PROPER MAINTENANCE DURING ITS LIFE. BAFFLING, FUEL SYSTEM SETUP, AND GENERAL MAINTENANCE HAVE BEEN CAREFULLY CONTROLLED ON THIS ENGINE.
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