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 CA970902015Cylinder · cracked(CAN) PILOT REPORTED POWER LOSS AND TEMPORARY ENGINE FAILURE. POST FLIGHT INSPECTION FOUND NR1 CYLINDER CRACKED.SDR AU971541Valve Seat · separated(AUS) EXHAUST VALVE SEAT SEPARATED FROM CYLINDER HEAD.SDR 97ZZZX3419Valve · wrong partDURING AN ANNUAL INSPECTION, FOUND LEAKING EXHAUST VALVES ON NR 2, NR 4, AND NR 6 CYLINDERS, ON LT ENGINE. SINCE TOTAL TIME OF THIS ENGINE WAS ONLY 177.3 HOURS SINCE REBUILT, THE CUSTOMER DECIDED TO REMOVE ALL CYL'S FOR INSP AND/OR REPAIR. CYL'S DISASSEMBLEDSDR 97ZZZX3697Cylinder · crackedCYLINDER CRACKED FROM TOP SPARK PLUG HOLE TO BOTTOM SPARK PLUG HOLE AROUND THE EXHAUST VALVE. HEAD OPENED UP BY THE EXHAUST VALVE AND BLEW OUT THE SIDE AND BURNED FINS OFF THE CYLINDER. ENGINE SKIPPED AND RAN ON THE OTHER 5 CYLINDERS. CYLINDER BURNED PRETTYSDR 97ZZZX3736Valve · stickingDURING CRUISE FLIGHT, PILOT REPORTED ROUGH RUNNING ENGINE. PILOT REDUCED POWER AND LANDED SAFELY WITHOUT INCIDENT. MECHANICS INSPECTING THE ENGINE DISCOVERED A SEVERELY BENT PUSH ROD AND HOUSING ON NR 1 CYLINDER. FURTHER INSPECTION REVEALED THE EXHAUST VALVSDR 97ZZZX3435Rocker Boss · separatedCYLINDER HEAD EXHAUST ROCKER BOSS SEPARATED FROM HEAD. OCCURRED DURING TAKEOFF CLIMB. STUCK VALVE. CORRECT LEAD CONTENT OF FUEL.SDR 97ZZZX3703Cylinder · crackedDURING ANNUAL INSPECTION, THREE OF THE CYLINDERS WERE FOUND CRACKED IN THE EXHAUST PORTS. RESEARCH OF LOG BOOKS INDICATE CYLINDERS WERE OVERHAULED BY CHROME PLATE IN 1979.SDR 97ZZZX5142Cylinder · failedAKN - EN ROUTE AIRCRAFT EXPERIENCED ENGINE ROUGHNESS. PILOT LANDED AIRCRAFT AT REINDEER BAY, NAKNEK LAKE. PROBLEM WAS DETERMINED TO BE EXHAUST SIDE ROCKER CHAMBER CRACKED THROUGH ROCKER AXLE PIN BORES. SUSPECT CAUSES: COULD BE INCORRECT ROCKER AXLE TORQUE SDR CA970710004Head · cracked(CAN) DURING FLIGHT ENGINE BEGAN RUNNING ROUGH WITHOUT SUFFICIENT POWER TO CONTINUE TRIP, FORCED LANDING MADE IN FIELD. POST FLIGHT INSPECTION FOUND THE #1 CYLINDER HEAD CRACKED.SDR 97ZZZX3984Push Rod · brokenENGINE BEGAN RUNNING ROUGH. NR 1 CYLINDER EXHAUST ROCKER PUSH ROD BARREL PN 39288 WAS FOUND BROKEN JUST BELOW STEEL BALL FITTING PN 11473. PART FATIGUE COULD HAVE PLAYED A PART. TOTAL TIME ON PART UNKNOWN. TOTAL TIME ON ENGINE WAS 6256.3 HOURS. TIME SINCESDR 97ZZZX3495Valve Spring · failedTHE PILOT NOTICED A VIBRATION AT CRUISE POWER AFTER AN HOUR OF FLIGHT. AFTER LANDING, INVESTIGATION REVEALED THE RIGHT ENGINE WOULD INCREASE IN VIBRATION WITH AN INCREASE IN RPM AND NOT DEVELOP FULL RPM. TROUBLESHOOTING REVEALED THE NR 2 CYLINDER HAD BOTH INSDR 97ZZZX3386Cylinder · failedAIRCRAFT WAS AT 6,500 FEET MSL, CRUISE POWER SETTINGS. WHEN PILOT RETARDED THROTTLE FOR DESCENT, HE FELT A VIBRATION. HE TURNED TO AN ALTERNATE AIRPORT. THE ENGINE WAS RUNNING ROUGH AND ON SHORT FINAL, NR 6 CYLINDER SEPARATED FROM ENGINE CAUSING THE ENGINE TSDR 97ZZZX3334Piston · erodedSHORTLY AFTER TAKEOFF, PILOT LOST ENGINE POWER AND CRASH LANDED SHORT OF RUNWAY. POST-ACCIDENT INVESTIGATION REVEALED CYL NR 1 SHOWED SIGNS OF EXCESSIVE HEAT. UPON REMOVAL OF CYL ASSY, THE PISTON WAS FOUND SEVERELY ERODED AROUND MUCH OF THE UPPER PERIMETER. SDR CA970807050Cylinder · cracked(CAN) NR2 ENGINE BEGAN TO RUN ROUGH WITH VIBRATIONS. ENGINE WAS SHUTDOWN AND AIRCRAFT RETURNED TO BASE. POST FLIGHT INSPECTION FOUND THE NR9 CYLINDER CRACKED.SDR AU971366Cover · loose(AUS) ENGINE CYLINDER ROCKER COVER LOOSE. ONE ROCKER SCREW MISSING (FOUND IN COWL) AND THE OTHER FOUR SCREWS LOOSE ALLOWING OIL TO LEAK AT THE GASKET.SDR 97ZZZX3518Cylinder · crackedANC - FLT 80 - RETURNED TO ANC DUE NR 1 ENGINE BACKFIRED IN CRUISE, LOW COMPRESSION INDICATED NR 9 CYLINDER. MAINTENANCE REPLACED NR 9 CYLINDER AND RETURNED AIRCRAFT TO SERVICE. (X)SDR 97ZZZX3694Valve · failedVALVE FAILED, CAUSED LOW POWER, AIRCRAFT HAD A FORCED LANDING. VALVE PARTS AND SEAT SENT TO NTSB.SDR 97ZZZX3520Cylinder · crackedFLT 60 - SHUT DOWN NR 3 ENGINE DUE TO BACKFIRING. MAINTENANCE REPLACED NR 18 CYLINDER AND RETURNED AIRCRAFT TO SERVICE. (X)SDR 97ZZZX3343Intake Valve · failedINTAKE VALVE ON NR 5M CYLINDER CAME APART AND PUNCHED A HOLE IN FRONT TOP OF CYLINDER WALL AND HEAD.SDR 97ZZZX3551Rocker Shaft · failedLOOSE RETAINING NUTS WORKED OFF STUDS ALLOWING THE PORT COVER TO FALL OFF AND NR 2 CYLINDER INTAKE VALVE ROCKER ARM SHAFT TO FALL OUT OF THE ENGINE RESULTING IN A CRASH LANDING. SUGGEST REVIEWING ENSTROM PRODUCTION CERTIFICATE AND TIGHTEN THE INSPECTION PROCEDSDR 97ZZZX3521Cylinder · crackedANC - FLT 751 - RETURNED TO ANC DUE TO NR 2 ENGINE BACKFIRING AT POWER SETTINGS ABOVE 30 INCHES, RPM 2400. MAINTENANCE REPLACED NR 13 CYLINDER ASSEMBLY. ACCOMPLISHED OVERWEIGHT LANDING INSPECTION AND RETURNED AIRCRAFT TO SERVICE. (X)SDR 97ZZZX3151Valve Seat · looseLEFT ENGINE RUNNING ROUGH. CHECKED COMPRESSION, 0/80, NR 3 CYLINDER. CHECKED WITH BORESCOPE, FOUND EXHAUST VALVE SEAT LOOSE. REMOVED CYLINDER ASSY WHICH WAS OVERHAULED BY ECI. SUSPECT FIT BETWEEN CYLINDER AND SEAT WAS NOT TIGHT ENOUGH AT ASSEMBLY.SDR 97ZZZX3415Rocker Box Tab · wornROCKER PIN RETAINING TAB ON COVER WORN EXCESSIVELY. THIS ENGINE HAS 180 HOURS TSOH!SDR AU971332Cylinder · cracked(AUS) ENGINE CYLINDER CRACKED FROM INDUCTION TUBE FACE TOWARDS THE INLET VALVE SEAT. CRACK LENGTH 31.75MM (1.25IN)SDR AU970799Cylinder · distorted(AUS) NO6 CYLINDER EXHAUST FLANGE DISTORTED - 2MM (0.078IN) GAP ON FORWARD SIDE - FURTHER INVESTIGATION FOUND NO2 AND NO4 CYLINDERS WITH APPROXIMATELY 1MM (0.039IN) GAPS - HEAT DAMAGE TO ENGINE COWLS FROM LEAKING EXHAUST GASSES - NEW GASKETS HAD BEEN FITTED APSDR 97ZZZX3626Valve · failedNR 1 CYLINDER VALVE HEAD CAME OFF AND SPLIT CYLINDER HEAD. ALSO, DAMAGED PISTON.SDR 97ZZZX3436Push Rod · brokenAFTER NORMAL FLIGHT AND ON TURN-AROUND, ENGINE ON POWER CHECK RAN VERY ROUGH AND WOULD NOT RESPOND NORMALLY TO THROTTLE ADVANCE. FOUND NR 5 CYLINDER WITH ONE BROKEN (INTAKE) PUSH ROD AND EXHAUST PUSH ROD BENT. ENGINE SHOP ADVISED VALVE STEMS STUCK. 15W50 AESDR AU970688Cylinder · damaged(AUS) NO2 AND NO6 CYLINDERS DAMAGED BY INGESTION OF SEPARATED ALTERNATE AIR DOOR BRACKET. PERSONNEL/MAINTENANCE ERROR.SDR 97ZZZX3482Stud · brokenTHE LEFT ENGINE NR 1 CYLINDER HAD 5 BROKEN HOLD-DOWN STUDS (ALL 3 ON THE BOTTOM AND 2 FORWARD ON TOP) WHICH CAUSED A VIBRATION AND RPM REDUCTION AT FULL POWER. ALL THE STUDS WERE BROKEN JUST UNDER THE HOLD-DOWN NUTS. REPLACEMENT OF ALL STUDS ON THAT CYLINDERSDR 97ZZZX3525Cylinder · crackedFLT 80 - SHUT DOWN NR 2 ENGINE AT 0058Z DUE TO LOSS OF OIL. MAINTENANCE REPLACED NR 1 CYLINDER AND RETURNED AIRCRAFT TO SERVICE. (X)SDR 97ZZZX3095Cylinder · crackedINSPECTION FOUND NR 4 CYLINDER CRACKED. CRACK RUNS FROM EXHAUST.SDR CA970620019Cylinder · oil leak(CAN) PRIOR TO FIRST FLIGHT OF THE DAY DURING THE PREFLIGHT THE PILOT NOTICED AN OIL LEAK BETWEEN THE HEAD AND BARREL OF #1 CYLINDER. THE CYLINDER WAS REPLACED.SDR CA970620015Cylinder · cracked(CAN) DURING THE 600 HOUR INSPECTION AN ENGINE COMPRESSION TEST REVEALED A LEAK BETWEEN THE BARREL AND HEAD OF #7 CYLINDER. THE CYLINDER WAS REPLACED.SDR AU970665Piston Pin · failed(AUS) NO3 CYLINDER PISTON PIN FAILED RESULTING IN FAILURE OF NO3 PISTON. PARTS OF NO3 PISTON LODGED BENEATH NO4 CYLINDER EXHAUST TAPPET CAUSING IT TO FAIL ALSO. SECONDARY DAMAGE CAUSED TO CRANKCASE, CONNECTING RODS, CAMSHAFT, NO3 CYLINDER SKIRT AND NO1, NO2 ANSDR 97ZZZX3475Pin Plug · failedTHIS AIRPLANE MADE AN EMERGENCY LANDING ON A HIGHWAY AT NIGHT. NO DAMAGES TO THE AIRCRAFT OR THE PASSENGERS. A TEAR-DOWN INSPECTION OF THE ENGINE WAS COMPLETED WITH THE FOLLOWING RESULTS. NR 3 CYLINDER PISTON PIN PLUG SEVERELY WORN. ALUMINUM FROM THE PLUG SDR 97ZZZX2930Cylinder · defectiveFOLLOWING TOP OVERHAUL, NOTED A KNOCK FROM CYLINDERS 5 AND 2. FOUND NEW PISTONS WERE HITTING ON THE CYLINDER HEADS. FOUND THE CYLINDER HEAD TO BARREL DISTANCE IS SMALLER THAN OTHER CYLINDERS.SDR 97ZZZX3529Cylinder · crackedFLT 60 - SHUT DOWN NR 3 ENGINE AT 2058Z DUE TO BACKFIRING AND BMEP DROP. MAINTENANCE REPLACED NR 9 CYLINDER AND RETURNED AIRCRAFT TO SERVICE. (X)SDR 97ZZZX3516Cylinder · crackedSCC/FAI - ON FERRY FLIGHT, AIRCRAFT RETURNED TO SCC DUE TO INTERMITTENT DOUBLE SHORTED SECONDARY NR 4 ENGINE, NR 3 CYLINDER. MAINTENANCE REPLACED NR 4 CYLINDER AND RETURNED AIRCRAFT TO SERVICE. (X)SDR 97ZZZX2889Cylinder · failedPILOT NOTICED LEFT ENGINE COWLING BECOMING COVERED WITH OIL. ENGINE WAS UNCOWLED FOR INVESTIGATION AND FOUND NR 2 CYLINDER HEAD CRACKED COMPLETELY OFF THE CYLINDER BARREL. THE ONLY THING HOLDING THE CYLINDER HEAD IN PLACE WAS THE EXHAUST, INDUCTION TUBE, ANSDR CA970903003Cylinder Head · worn(CAN) EXHAUST VALVES ON NR1 CYLINDER (P/N 913425) AND NR2 CYLINDER (P/N 913435) WERE FOUND NOT SEATING PROPERLY, ALLOWING BLOW BY. SEAT REFACED AND NEW VALVES INSTALLED. NR1 AND NR2 CYLINDERS UNSERVICEABLE DUE TO BLOW BY. WEAR ON MATING SURFACES BEYOND ACCEPTASDR AU970850Valve · damaged(AUS) NO3 CYLINDER EXHAUST VALVE HEAD DAMAGED - APPROXIMATELY 50% OFTHE HEAD WAS MISSINGSDR CA970610004Cylinder · cracked(CAN) ENGINE WAS LEAKING OIL. INSPECTION FOUND THE #2 CYLINDER WAS CRACKED.SDR CA970612010Piston · broken(CAN) ENGINE WAS SHUTDOWN IN FLIGHT DUE TO ROUGH RUNNING ENGINE. POST FLIGHT INSPECTION FOUND THE #8 CYLINDER PISTON BROKEN. THE SUBMITTER SUGGESTS THAT A HYDRAULIC LOCK PREVIOUSLY MAY HAVE CONTRIBUTED TO THIS FAILURE.SDR CA970612002Cylinder · cracked(CAN) CYLINDER HEAD CRACKED FROM UPPER SPARK PLUG HOLE TO INSPECTION HOLE.SDR 97ZZZX2791Cylinder · loose studENGINE LOST POWER DURING FLIGHT. SAFE LANDING C/W. MAINT FOUND NR 2 CYLINDER PUSH ROD BENT. FURTHER INSPECTION REVEALED ROCKER ARMS ON THAT CYLINDER VERY LOOSE, ALMOST FELL OFF WHEN ROCKER COVER REMOVED. ROCKER SHAFT STUDS FOUND BACKED OUT. THERE ARE NO SASDR 97ZZZX3469Carb Socket · looseTHE CARBURETOR SOCKET VIBRATED LOOSE FROM THE INTAKE MANIFOLD. NO SAFETY WIRING OF THE CLAMPS AS RECOMMENDED BY ROTAX. CARBS HAD FELT SECURE ON PRE-FLIGHT INSPECTION.SDR 97ZZZX2921Valve Seat · looseDURING TAXI FOR TAKEOFF, PILOT REPORTED ENGINE RUNNING ROUGH. RIGHT ENGINE MANIFOLD PRESSURE HIGHER THAN NORMAL. COMPRESSION CHECK FOUND NR 1 CYLINDER LOW, 10/80. DISASSEMBLY OF CYLINDER FOUND LOOSE EXHAUST VALVE SEAT.SDR 97ZZZX2820Rocker Arm · failedNR 2 CYLINDER HAD INTAKE AND EXHAUST ROCKER ARM ASSEMBLIES SWITCHED. NR 2 EXHAUST VALVE MIGHT HAVE STUCK DUE TO NO LUBRICATION OR COOLING FROM THE DRILLED PASSAGEWAY BECAUSE THE EXHAUST ROCKER ARM WAS IN THE INTAKE VALVE POSITION. INTAKE ROCKER FAILED.SDR AU970560Valve Guide · worn(AUS) NO3 AND NO4 CYLINDER EXHAUST VALVE GUIDES WORN - AIRCRAFT IS INVOLVED IN PARACHUTING OPERATIONSSDR 97ZZZX2595Pushrod · mushroomedPILOT REPORTED ENGINE RUNS ROUGH. CHECKED VALVE CLEARANCE AND FOUND NR 2 EXHAUST TO BE .083 INCH. REMOVED NR 2 EXHAUST PUSHROD. PUSHROD FOUND MUSHROOMED AND BALL END WAS LOOSE. SUBMITTER SUGGESTS INSPECTING PUSHRODS FOR LOOSE BALL ENDS ANYTIME THE 100-HOUR
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