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 CA991112006Cylinder · worn(CAN) CYLINDER BORE EXIBITED EXCESSIVE WEAR RIDGE, OPERATOR SUSPECTS OVERHEAT IN THE PAST.SDR 99ZZZX4153Bearing · failedAPPROX 15 MINUTES AFTER TAKEOFF FROM A RE-FUELING STOP ON A LONG CROSS-COUNTRY FLIGHT, OIL TEMP BEGAN A RAPID RISE AND OIL PRESSURE FELL TO 0-21 PSI (FLUCTUATING). AN OFF-FIELD LANDING WAS MADE WITH THE AIRCRAFT NOSEING OVER NEAR THE END OF THE LANDING ROLL. SDR CA991112034Piston Ring · failed(CAN) RIGHT ENGINE PISTON RING FAILED.SDR 99ZZZX4251Cylinder · crackedDURING INSPECTION, FOUND GREASE LIKE FLUID ON INDUCTION TUBES AND WHERE CYLINDER AND HEAD ATTACH. REMOVED AND SENT TO OVERHAUL SHOP. REPORTED CRACKED HEAD WILL COME OFF SOON. REMOVED AND REPLACED CYLINDER. SUBMITTER RECOMMENDED CHECKING THIS LOCATION AT CYSDR 99ZZZX4219Cylinder Head · separatedDURING THE COURSE OF NORMAL FLIGHT, THE PILOT NOTICED RIGHT ENGINE RUNNING ROUGH WITH A DROP IN ITS MANIFOLD PRESSURE. THE AIRCRAFT LANDED WITHOUT EVENT. MAINTENANCE WAS ABLE TO DETERMINE THAT THE NR 2 CYLINDER HEAD HAD SEPARATED FROM THE BARREL OF THE CYLINDSDR 99ZZZX4624Stud · brokenNR 2 CYLINDER HAD TWO BROKEN STUDS PREVIOUS TO THIS INCIDENT. SUBMITTER STATED SHOULD HAVE REMOVED THROUGH-STUDS ALSO AND HAD MAGNAFLUXED AND CHECKED BEFORE RE-INSTALLING CYLINDER AT THAT TIME.SDR CA991209028Exhaust Valve · failed(CAN) NR 1 EXHAUST VALVE FAILED. (X)SDR 99ZZZX4069Rocker Arm · crackedAPPROXIMATELY 2 MILES FROM AN AIR FIELD, THE ENGINE BEGAN TO RUN ROUGH. LANDED WITHOUT INCIDENT. INSPECTION REVEALED THE NR 4 CYLINDER EXHAUST ROCKER ARM HAD CRACKED AND SEPARATED, ON THE BOTTOM INBOARD SIDE, IN THE BUSHING AREA. THE BUSHING WAS NOT DAMAGED.SDR CA991007066Rod · corroded(CAN) CORROSION FOUND ON PISTON RODS AND IN CYLINDER FELT GROOVE DURING 6 YEAR CHECK.SDR 99ZZZX4048Lifter · pittedFACTORY NEW ENGINE DIS-ASSEMBLED FOR BALANCING. PITTING FOUND ON 6 INTAKE AND 2 EXHAUST LIFTER FACES.SDR 99ZZZX4059Stud · brokenROUGH ENGINE IN-FLIGHT. FOUND BROKEN CYLINDER HOLD DOWN STUDS NR 3 CYLINDER TOP RIGHT, BOTTOM RIGHT AND INSIDE, .3750 INCH STUDS ADJACENT ALSO BROKEN. OVERHAULED 8-18-93. PULLED AILERON AND CYLINDERS AND FOUND CYLINDER HOLD-DOWN BOLTS NOT PROPERLY TORQUED.SDR 99ZZZX4016Camshaft · failedIN CRUISE FLIGHT, ENGINE STARTED TO RUN ROUGH. ENGINE SHUT DOWN AND PROP FEATHERED. MAINTENANCE FOUND NO COMPRESSION ON REAR CYLINDERS. SUBMITTER SUSPECTED REAR CAM FAILURE. ENGINE TO BE REMOVED AND REPLACED.SDR 99ZZZX3926Pin Plug · destroyedOWNER NOTICED A SIGNIFICANT DROP IN OIL PRESSURE DURING FLIGHT AND MADE AN IMMEDIATE LANDING AT THE NEAREST AVAILABLE AIRPORT. UPON INSPECTION OF THE OIL FILTER, MUCH ALUMINUM WAS FOUND. UPON REMOVAL OF THE NR 1 AND NR 2 CYLINDERS, IT WAS EVIDENT THE PISTON SDR CA991004019Stud · broken(CAN) CYLINDER STUDS FAILED.SDR AU991080Piston Pin · failed(AUS) NR 2 CYLINDER PISTON PIN END CAP SHEARED OFF. ENGINE OIL SYSTEM CONTAMINATED WITH METAL.SDR 99ZZZX3651Gear · failedLEFT ENGINE QUIT IN-FLIGHT. UPON INVESTIGATION ON GROUND, FOUND NO OIL PRESSURE DURING ENGINE TEST RUNS. UPON FURTHER INVESTIGATION, FOUND DRIVE GEAR ON CAMSHAFT BROKEN OFF. REMOVED ENGINE SENT TO TCM FOR ANALYTIC TEAR-DOWN.SDR CA990915082Cylinder · cracked(CAN) NR 4 CYLINDER CRACKED.SDR CA990915079Insert · loose(CAN) EXHAUST ROCKER SHAFT INSERT FOUND LOOSE ON THE CYLINDER.SDR 2000ZZZX20Cylinder · crackedMASSIVE OIL LEAK REVEALED CRACKED CYLINDER BARREL ON LYCOMING P/N LW16703, 506.2 TTSN. DISCOVERED 9-9-99.SDR AU991070Exhaust Valve · worn(AUS) NR 1 CYLINDER EXHAUST VALVE P/N 652956 AND EXHAUST VALVE GUIDE P/N 643767 WORN BEYOND LIMITS.SDR CA991007085Rocker Boss · broken(CAN) BROKEN EXHAUST ROCKER BOSS ON NR 1 CYLINDER.SDR AU990939Valve Seat · loose(AUS) NR 1 CYLINDER EXHAUST VALVE SEAT DISLODGED AND HELD THE EXHAUST VALVE OPEN ALLOWING IT TO BE CONTACTED BY THE PISTON WHICH THEN SNAPPED THE VALVE HEAD OFF. DAMAGE TO NR 1 CYLINDER AND CONNECTING ROD.SDR 20000911SH023Cylinder · separatedCYLINDER HEAD SEPARATED COMPLETELY FROM BARREL IN-FLIGHT. FAILURE POSSIBLE DUE TO FATIGUE. TOTAL CYLINDER TIME IS UNKNOWN. TOTAL TIME SINCE CERMICHROME: 259.0 HOURS. (X)SDR CA991004031Cylinder · worn(CAN) POWER LOSS EXPERIENCED DUE TO STICKY VALVES.SDR CA990927017Cylinder · leaking(CAN) CRANKCASE CRACKED AT BOTTOM OF NR 3 CYLINDER.SDR 99ZZZX3592Cylinder · wornDURING A ROUTINE 100-HOUR INSPECTION, EXCESSIVE LEAKAGE WAS FOUND PAST THE PISTON RINGS ON THE NR 2 CYLINDER. THE REMOVED CYLINDER WAS FOUND WORN TO A BELL MOUTH CONDITION AT THE TOP OF THE CYLINDER BORE.SDR 99ZZZX3591Cylinder · wornDURING A ROUTINE 100-HOUR INSPECTION, EXCESSIVE LEAKAGE WAS FOUND PAST THE PISTON RINGS ON THE NR 6 CYLINDER. THE REMOVED CYLINDER WAS FOUND WORN TO A BELL MOUTH CONDITION AT THE TOP OF THE CYLINDER BORE.SDR 99ZZZX3577Valve · wornDURING A ROUTINE 100-HOUR INSPECTION, EXCESSIVE LEAKAGE WAS FOUND LEAKING PAST THE PISTON RINGS ON THE NR 4 CYLINDER. THE REMOVED CYLINDER WAS FOUND TO HAVE A WORN OUT EXHAUST VALVE, A WORN OUT VALVE GUIDE, AND WORN TO A BELL MOUTH CONDITION AT THE TOP OF THESDR CA990927052Cylinder · cracked(CAN) NR 5 CYLINDER CRACKED.SDR AU990905Cylinder · worn(AUS) CYLINDER EXHAUST VALVE AND VALVE GUIDE WORN. CYLINDER HAD TWO VALVES AND VALVE GUIDES REPLACED IN ONLY 474 HOURS OF OPERATION.SDR AU990875Cylinder · worn(AUS) CYLINDER EXHAUST VALVE AND VALVE GUIDE WORN PREMATURELY. THE CYLINDER HAD TWO VALVE AND VALVE GUIDE REPLACEMENTS FOR WORN ITEMS IN 474 HOURS OF OPERATION.SDR 99ZZZX3625Follower · brokeSTUDENT PILOT FLYING, HAD ENGINE QUIT WHILE DOING TOUCH AND GOES. A TEST RUN OF THE ENGINE AFTER RECOVERY REVEALED THE ENG WOULD MAKE 1,850 RPM'S WHEN LEANED OUT. INVESTIGATIVE DISASSEMBLY REVEALED THE NR 1 INTAKE VALVE STUCK OPEN APPROX .3750 INCH. THE VALSDR 99ZZZX3744Rocker Boss · failedCRUISE, LEVEL FLIGHT, ENGINE STARTED RUNNING VERY ROUGH; INSTRUCTOR LANDED SAFE IN GRASS FIELD. INSPECTION REVEALED NR 3 CYLINDER ROCKER SHAFT BOSS BROKEN OFF. ENGINE HAD 100 HRS TIS FROM MAJOR OVERHAUL.SDR AU990866Cylinder · misoverhauled(AUS) TWO OVERHAULED CYLINDERS WERE NOT WITHIN SERVICE LIMITS. THE CYLINDERS CONTAINED SERVICEABLE TAGS. THESE CYLINDERS WERE TO BE USED AS REPLACEMENT CYLINDERS FOR MDR 99/0865.SDR AU990865Cylinder · leaking(AUS) ALL ENGINE CYLINDERS LEAKING BETWEEN THE BARREL AND HEAD.SDR 99ZZZX3607Valve · failedREMOVED NR 3 CYLINDER DUE TO BROKEN EXHAUST VALVE. VALVE BROKE IN-FLIGHT AND ENGINE STARTED RUNNING ROUGH. REPLACED CYLINDER ASSEMBLY, PISTON AND RINGS. ENGINE HAS 888.41 HRS SMOH.SDR CA990907082Cylinder · cracked(CAN) NR 4 CYLINDER CRACKED AT EXHAUST VALVE.SDR CA990907019Cylinder · cracked(CAN) NR 6 CYLINDER CRACKED NEAR EXHAUST VALVE.SDR AU990871Cylinder · failed(AUS) NR 2 CYLINDER CONNECTING ROD BROKEN. CRANKCASE HOLED IN THE AREA BELOW THE MAGNETOS. NR 2 CYLINDER AND THE SURROUNDING AREA DAMAGED. SUBMMITTER SUSPECTED CAUSED BY INCOMPATIBILITY BETWEEN THE CYLINDER BORE SURFACE TREATMENT AND THE PISTON RING MATERIASDR AU990878Rocker Arm · fractured(AUS) NR 5 CYLINDER EXHAUST VALVE ROCKER ARM FRACTURED. SUBMITTER SUSPECTED ROCKER ARM BUSHING INCORRECTLY FITTED, COVERING THE OIL HOLE AND PREVENTING LUBRICATION. (X)SDR CA990907017Cylinder · cracked(CAN) CRACKED CYLINDER BETWEEN SPARK PLUG AND EXHAUST PORT.SDR AU990903Valve Guide · broken(AUS) NR 2 CYLINDER EXHAUST VALVE GUIDE BROKEN.SDR 99ZZZX3750Valve · failedDURING DESCENT FROM ALTITUDE AFTER A 2 HOUR CROSS COUNTRY FLIGHT AND 10 MILES FROM HOME BASE, THE ENGINE BEGAN TO RUN ROUGH. DESCENT WAS STOPPED AT 2.500 FEET TILL A SAFE LANDING WAS ASSURED. THE ENGINE, ALTHOUGH RUNNING ROUGH, RAN WITH GOOD OIL PRESSURE AND SDR 99ZZZX3398Valve · failedINSTALLED NEW VALVES AT TIME OF OVH. VALVE STEM END BROKE OFF DUE TO ABNORMAL WEAR.SDR CA990818007Stud · separated(CAN) TWO STUDS PN 304149 SEPARATED FROM REAR CYLINDER. EXHAUST MELTED THE PUSH ROD COVER CAUSING AN OIL LEAK AND SMALL FIRE. WARNING INDICATION IN COCKPIT RESULTED IN ABORTED TAKEOFF. NEW CYLINDER INSTALLED.SDR 99ZZZX3567Snap Ring · failedAIRCRAFT MADE AN OFF-AIRPORT LANDING DUE TO LOSS OF POWER. ENGINE WAS DISASSEMBLED. THE SNAP RING THAT HOLDS NR 1 CYLINDER EXHAUST ROCKER ARM WAS BROKEN ALLOWING THE ROCKER ARM TO COME OFF OF THE SHAFT.SDR 99ZZZX3172Valve · corrodedDURING A ROUTINE COMPRESSION CHECK, CYLINDER AIR PRESSURE ABOVE 6 PSI COULD NOT BE MAINTAINED IN NR 2 CYLINDER. AIR WAS FELT ESCAPING FROM THE INDUCTION AIRBOX. MECHANIC TAPPED ON INTAKE VALVE WITH A DRIFT. SUBSEQUENT COMPRESSION CHECKS FAILED AS WELL. CYLSDR 20000714SH021Plug · looseFOLLOWING MAJOR OVERHAUL, ALUM PARTICLES WERE FOUND IN THE OIL SCREEN AT 30, 55, AND 75 HOURS. CYLINDERS WERE REMOVED AND THE PISTON PIN PLUGS WERE FOUND WORN ON THE SHANK IN THE FORM OF A TAPER. THE PINS AND PLUGS WERE NEW AND CAME FROM A SET. THE OVERHAULSDR CA990907078Stud · broken(CAN) CYLINDER STUDS BROKEN ALLOWING SEPARATION OF CYLINDER.SDR 99ZZZX3278Piston · damagedDURING TOP OVERHAUL, NOTICED LOWER EDGE OF PISTON SKIRT ON SUPERIOR SL10545 PISTONS HAD BEEN CONTACTING OPPOSING CONNECTING ROD CAPS AT BOTTOM OF STROKE. THE NEW PISTON REPLACMENTS SL10545 HAVE DIFFERENT DIMENSIONS MEASURED FROM LOWER EDGE OF PISTON PIN HOLE
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