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 95ZZZX4393Rotor · defectiveFOUND EXHAUST VALVE ROTOR CAP WILL NOT ROTATE. THIS VALVE ROTOR WAS OUT OF A CYLINDER VALVE ASSY.SDR CA951215012Cylinder · separated(CAN)ENGINE WAS RUNNING ROUGH ON TAKEOFF. POST FLIGHT INSPECTION FOUND A CYLINDER BROKEN/SEPARATED AT THE TOP OF THE BARREL . THIS ENGINE HAS BEEN OPERATING USING AUTOMOTIVE GASOLINESDR CA951215010Cylinder · separated(CAN)ENGINE WAS RUNNING ROUGH ON TAKEOFF POST FLIGHT INSPECTION FOUND #6 CYLINDER HAD A BAD OIL LEAK AT THE BARREL/HEAD AND WAS STARTING TO SEPARATE .THE VALVE GUIDES AND VALVE SEATS WERE WITHIN LIMITS THIS ENGINE HAS BEEN OPERATING USING AUTOMOTIVE GASOLINESDR CA951215009Cylinder · separated(CAN)ENGINE WAS RUNNING ROUGH ON TAKEOFF POST FLIGHT INSPECTION FOUND THAT #3 CYLINDER HAD A BAD OIL LEAK AT THE BARREL/HEAD AND WAS STARTING TO SEPARATE THERE WERE FUEL STAINS AT THE INTAKE PORT THE CY LINDER HAD BEEN RUNNING HOT AND THE EXHAUST VALVE GUIDESDR CA951215007Cylinder · separated(CAN)ENGINE WAS RUNNING ROUGH ON TAKEOFF. POST FLIGHT INSPECTION FOUND #1 CYLINDER SEPARATED AT THE BARREL/HEAD AT THE LAST THREAD. THE CYLINDER DOME AND EXHAUST PORT WERE OIL FOULED. THERE WAS A BAD FUEL LEAK AT THE INTAKE PORT. THE VALVES, VALVE GUIDES AND SDR 95ZZZX4428Push Rod · defectiveENGINE LOW STATIC. FOUND PUSH ROD WITH BOTH ENDS LOOSE AND TUBE MUSHROOMED. REPLACED PUSH ROD. INSPECTED ALL OTHER FOR PROPER ADJUSTMENT - OK.SDR 95ZZZX4181Pushrod · mushroomedCYLINDER NR 3 REMOVED FOR LOW COMPRESSION, FOUND EXCESSIVE CLEARANCE BETWEEN EXHAUST VALVE AND ROCKER ARM CAUSED BY PUSHROD THAT HAD MUSHROOMED UNDER BALL END.SDR CA951215008Cylinder · separated(CAN)ENGINE WAS RUNNING ROUGH ON TAKEOFF POST FLIGHT INSPECTION FOUND #3 CYLINDER SEPARATED AT THE BARREL/HEAD, BARREL WAS BROKEN OFF AT THE LAST THREADTHE DOME AND THE EXHAUST PORT WERE OIL FOULED THEEXHAUST VALVE WAS POUNDED INTO THE SEAT. THIS ENGINE IS BSDR CA951026016Top Ring · broken(CAN)DURING 100 HOUR INSPECTION #1, #5 & #6 CYLINDERS WERE FOUND WITH VERY LOW COMPRESSION AND IT WAS DECIDED TO REPLACE THE CYLINDERS. SHORTLY BEFORE THIS THE ENGINE HAD HIGH OIL COMSUMPTION AND #2, #3 & #4 CYLINDERS HAD TO BE REPLACED. ON ALL CYLINDERS THE SDR 95ZZZX5104Piston Pin · brokenNR 2 CYLINDER PISTON PIN FAILED AT MIDSECTION (BROKEN IN HALF). SUBSEQUENT FAILURE OF NR 2 PISTON AND METAL CONTAMINATED SUPERIOR AIR PARTS SUPPLIED PISTON PIN WITH A SHIP DATE OF 11-8-94. CAUSE UNKNOWN.SDR 95ZZZX4432Valve Guide · looseINSPECTION FOUND EXHAUST VALVE GUIDE EXCESSIVELY LOOSE IN CYLINDER.SDR 95ZZZX4584Valve · failedVALVE STEM CRACKED JUST BELOW HEAD OF VALVE. THE HEAD OF THE VALVE FALLING INTO THE CYLINDER CAUSED MAJOR DAMAGE TO THAT CYLINDER. SUBMITTER SUGGESTS DETONATION MAY HAVE BEEN A FACTOR. NOTE: AUTO FUEL WAS BEING USED.SDR 95ZZZX4378Piston · damagedAT 6,500 MSL-10 MI E OF DSM, RT ENGINE CHIP DETECTOR LIGHT CAME ON WITH ENGINE VIBRATION. FEATHERED RT ENGINE, PRECAUTIONARY. LANDING NORMAL. FOUND VALVE AND PISTON DAMAGE NR 9 CYLINDER. REPLACED CYLINDER, RECHECKED BOTH ENGINES FOR VALVE CLEARANCE, CHANGESDR CA951215006Cylinder · failed(CAN)ENGINE WAS RUNNING ROUGH ON TAKEOFF. POST FLIGHT INSPECTION FOUND LOW COMPRESSION ON #1 CYLINDER, BARREL WAS IN GOOD CONDITION WITH NO OIL LEAKS AT HEAD AND BARREL. EXHAUST VALVE GUIDE WAS WORN OUT AND THE EXHAUST VALVE WAS POUNDED INTO THE SEAT AND BADLYSDR 95ZZZX5648Ring · brokenPILOT MADE EMERGENCY LANDING DUE TO POWER LOST. FOUND NR 1, NR 3 BOTTOM SPARK PLUGS OIL FOULED. REMOVED THE CYLINDERS AND FOUND BROKEN COMPRESSION RINGS. TSO NR 1 CYLINDER, 1600 HRS. TSO NR 3 CYLINDER, 777 HRS.SDR 95ZZZX4355Piston Pin · brokenDISASSEMBLING ENGINE FOR SEALING OIL LEAKS. WHEN NR 3 PISTON PIN WAS PUSHED OUT IT WAS FOUND BROKEN IN HALF RIGHT IN THE MIDDLE OF THE CONNECTING ROD BUSHING. FOUND LIGHT (0.002 INCH - 0.003 INCH DEEP) SCORING IN CONNECTING ROD BUSHING. APPARENTLY, THE PIN HSDR 95ZZZX4489Cylinder · failedCYLINDER HEAD HAD CRACKED ON THE EXHAUST ROCKER BOX ASSEMBLY AREA CAUSING ENGINE TO QUIT AND AIRCRAFT CRASHED.SDR 95ZZZX4310Gear · teeth shearedROTARY VALVE GEAR OIL SUMP FASTENER BROKE AND SUMP FELL TO A LOWER LEVEL THAN THE CRANKSHAFT. LACK OF LUBRICATION FROM SUMP CAUSED BRASS ROTARY VALVE GEAR TO SHEAR OFF ITS TEETH. RESULT WAS THE ROTARY VALVE SLIPPED AND BECAME OUT OF TIME WITH ENGINE; THUS, RSDR CA960311024Cylinder · cracked(CAN) DURING FLIGHT, ENGINE MALFUNCTIONED. AIRCRAFT LANDED ON FLOATS WITHOUT INCIDENT. CYLINDER FOUND CRACKED. CYLINDER REPLACED.SDR 95ZZZX4024Tube · detachedHELICOPTER DEPARTED SCK AIRPORT AND MADE A FORCED LANDING IN A FIELD. INVESTIGATION FOUND AN INDUCTION TUBE HAD COME LOOSE. RECOMMEND DURING OVERHAUL, ALL TUBES BE RE-SWAGED.SDR 95ZZZX5750Cylinder · defectiveJUST AFTER TAKEOFF, THE LEFT ENGINE BEGAN TO RUN ROUGH. THE AIRCRAFT RETURNED FOR LANDING AND A COMPRESSION CHECK WAS PERFORMED. THE NR 6 CYLINDER HAD LOW COMPRESSION DUE TO LEAKAGE PAST THE EXHAUST VALVE. THE EXHAUST VALVE APPEARED NORMAL EXCEPT FOR DISCOLSDR 95ZZZX4492Cylinder · failedCYLINDER CRACKED TWO PLACES BETWEEN SPARK PLUG AND EXHAUST SEAT. EXHAUST SEAT CRACKED. CYLINDER CRACKED ALSO, THREE-QUARTERS AROUND. SUBMITTER RECOMMENDS CYLINDER TT SHOULD BE TRACKED AND CYLINDERS BE RETIRED AFTER 3 ENGINE T.B.O.'S. THIS IS A RECURRING PRSDR 95ZZZX3817Piston · crackedAFTER POST-FLIGHT INSPECTION, PILOT REPORTED OIL DRIPPING FROM NR 6 CYLINDER EXHAUST STACK. REMOVED CYLINDER, FOUND NR 6 PISTON CRACKED SPANWISE ACROSS PISTON TOP CAUSING OIL TO DRAIN OUT EXHAUST STACK. THERE WERE NO OTHER SIGNS OF DAMAGE TO CYLINDER OR LINKSDR 95ZZZX3860Rocker Shaft · crackedDURING THE CHANGING OF THE PUSHROD HOUSING TUBE SEALS WHICH INVOLVES REMOVING THE ROCKER BOXES, FOUND THE VALVE ROCKER SHAFT ON THE EXHAUST SIDE OF CYLINDER NR 3 CRACKED ABOUT ONE-HALF THE WAY AROUND AND .25 INCH FROM THE END.SDR 95ZZZX4191Cylinder · worn outOIL BLOWN OVERBOARD IN-FLIGHT (APPROX 3 QUARTS LOW). RESEARCH FOUND THE NR 1 CYLINDER LOW ON COMPRESSION. THE CYLINDER WAS FOUND WORN OUT AT THE UPPER ONE-THIRD AREA. CHROME PLATING IS WORN THROUGH. BOTH COMPRESSION RINGS WERE FOUND DESTROYED, SHATTERED INSDR ERA00010Nr 3 Cylinder · failedRT ENGINE EMITTING GRAY SMOKE ON CLIMB FROM ANC. F/F LOW, SPUTTERING AND DETONATION, SHUTDOWN RT ENGINE AND MADE UNEVENTFUL LANDING AT ANC. REPLACED NR 3 CYLINDER AND CHECKED OIL SCREENS. GROUND OPS CHECK GOOD.SDR 95ZZZX4019Valve · bindingINSPECTION REVEALED VALVE STEM TIGHT IN GUIDE DUE TO EXCESSIVE CARBON BUILD-UP. AFTER CLEAN-UP OF GUIDE, THE CLEARANCE WAS MEASURED AND DETERMINED TO BE IN LIMITS. CAUSE OF CARBON BUILD-UP, POSSIBLE RICH CARBURETOR. INSPECTION OF 3 REMAINING CYLINDERS ON ENSDR 95ZZZX3518Rotor Coil · brokenSUPERIOR AIR PARTS VALVE ROTOR FAILED. NR 5 CYLINDER EXHAUST VALVE POSITION CAUSING ENGINE METAL CONTAMINATION.SDR 95ZZZX3517Rotor Coil · failedSUPERIOR AIR PARTS VALVE ROTOR FAILED. NR 3 CYLINDER EXHAUST VALVE POSITION CAUSING ENGINE METAL CONTAMINATION.SDR 95ZZZX3516Rotor Coil · brokenSUPERIOR AIR PARTS VALVE ROTOR FAILED. NR 3 CYLINDER EXHAUST VALVE POSITION CAUSING ENGINE METAL CONTAMINATION.SDR 95ZZZX3509Rotor Coil · failedSUPERIOR AIR PARTS VALVE ROTOR FAILED. NR 2 CYLINDER EXHAUST VALVE POSITION CAUSING ENGINE METAL CONTAMINATION.SDR 95ZZZX3508Rotor Coil · failedSUPERIOR AIR PARTS VALVE ROTOR FAILED. NR 6 CYLINDER EXHAUST VALVE POSITION CAUSING ENGINE METAL CONTAMINATION.SDR 95ZZZX3791Piston Pin · brokenPISTON REMOVED ALONG WITH CYLINDER NR 3 DUE TO CYLINDER HEAD CRACKS. WHEN INSPECTING PISTON, FOUND PIN PLUG (NON-REMOVABLE, FORGED-IN TYPE) TO BE BROKEN IN MIDDLE WITH ONE END LOOSE. SUBMITTER STATES, OBSERVED THIS TWICE BEFORE ON SIMILAR ENGINES.SDR 95ZZZX3662Cylinder · wornNR 4 CYLINDER FOUND TO HAVE CHOKE BORE OUT OF TOLERANCE. SUSPECT CAUSE FOUND TO BE 2 INCH SCAT HOSE COLLAPSED BLOCKING OFF COOLING AIR.SDR 95ZZZX3658Pushrod · failedPUSHROD FAILED AND WAS NOT MARKED WITH THE PROPER P/N PER THE A.O. 80-25-02 LYCOMING ADVISED THAT THE PROPER PUSHRODS WERE INSTALLED DURING ORIGINAL ASSEMBLY. ALL PUSHRODS REMOVED AND INSPECTED. ALL FOUND TO HAVE THE WRONG P/N. NO RECORDS OF THE PUSHRODS BESDR 95ZZZX3653Cylinder · crackedLEFT ENGINE NR 3 CYLINDER CRACKED AT BOTH SPARKPLUG HOLES. SUBMITTER KNOWS OF MANY EXAMPLES OF IDENTICAL FAILURES THROUGHOUT FLEET AIRCRAFT.SDR 95ZZZX3494Push Rod · corrodedRECEIVED 3 EACH PUSH ROD ASSEMBLIES FROM DISTRIBUTOR. PUSH ROD ASSEMBLY HAS EXCESSIVE WEATHERING CORROSION AND PITTING ON THE OUTER SURFACE ON THE RODS. REFERENCED TO THE VENDOR FOR INSPECTION AND DISPATCH. ROD ASSEMBLIES WERE NOT PRESERVED IN ANY TYPE OF ASDR 95ZZZX4268Guide · brokenDURING CYLINDER REPAIR, A HALF-MOON SHAPED SECTION OF THE EXHAUST VALVE GUIDE THAT MEASURED APPROXIMATELY .3125 INCH X .25 INCH WAS FOUND MISSING FROM THE LOWER PORTION OF THE GUIDE.SDR 95ZZZX4267Guide · brokenDURING CYLINDER REPAIR, A RECTANGULAR SECTION OF THE EXHAUST VALVE GUIDE THAT MEASURED APPROXIMATELY .3125 INCH X .25 INCH WAS FOUND MISSING FROM THE LOWER PORTION OF THE GUIDE.SDR 95ZZZX4266Guide · crackedDURING CYLINDER REPAIR, THE EXHAUST VALVE GUIDE WAS FOUND CRACKED AT BOTH THE TOP AND BOTTOM PORTIONS OF THE GUIDE. THE CRACKS WERE NOT CONNECTED.SDR 95ZZZX4264Rocker Arm · obstructedWHILE CLEANING THE ROCKER ARM, SOLVENT FLOW THROUGH THE OIL PASSAGE WAS FOUND TO BE RESTRICTED. INSPECTION REVEALED A BROKEN DRILL BIT TIP TO BE THE OBSTRUCTION IN THE OIL PASSAGEWAY. WHEN THE DRILL BIT TIP WAS REMOVED, NORMAL FLUID FLOW WAS OBSERVED.SDR 95ZZZX3657Cylinder · exitedTHE AIRCRAFT MADE AN EMERGENCY LANDING WITH THE RIGHT ENGINE FEATHERED. THE COPILOT HAD NOTED NR 4 CYLINDER EXIT THROUGH THE SIDE COWLING IN A DOWNWARD DIRECTION. THE CONNECTING ROD WAS STILL ON THE CRANK, BENT SLIGHTLY AFT AND THE PISTON PIN BOSS WAS ELONGASDR 95ZZZX3471Cylinder · failedSTUDENT PILOT REPORTED ENGINE RAN ROUGH ON RUN-UP. FOUND NR 3 EXHAUST VALVE STUCK OPEN. ALSO, FOUND INTAKE ROCKER ARM (WITH NO OIL ORIFICE) INSTALLED ONE EXHAUST SIDE - POSSIBLY CONTRIBUTING TO STUCK VALVE. SEE CONT SB M77-19. OTHER AIRCRAFT HAVE BEEN FOUNSDR 95ZZZX3283Rocker Arm · wornROCKER ARM BEARING WORN BEYOND LIMITS. SUSPECT DUE TO AGE AND OIL STARVATION TO THIS PART.SDR 95ZZZX3282Rocker Arm · bearing wornROCKER ARM BEARING WORN BEYOND LIMITS. SUSPECT DUE TO AGE AND OIL STARVATION TO THIS PART.SDR 95ZZZX3269Rocker Arm Pin · wornROCKER ARM PINS WERE WORN ON ONE SIDE BEYOND LIMITS. SUSPECT WEAR WAS DUE TO AGE OF PARTS AND POSSIBLE OIL STARVATION.SDR 95ZZZX5985Cylinder · failedDURING AN INSPECTION OF THE ENGINE, THE NR 5 CYLINDER WAS FOUND CRACKED BETWEEN THE TOP SPARK PLUG HOLE AND INJECTOR NOZZLE HOLE. INVESTIGATION REVEALED THE MAGNETO TO ENGINE TIMING WAS 10 DEGREES ADVANCED. AFTER THE NR 5 CYLINDER WAS REMOVED, THE PISTON, PISDR 95ZZZX5642Tube · dislocatedDURING WILDLIFE SURVEY, ENGINE BECAME ROUGH AND WAS SHUT DOWN. AIRCRAFT LANDED ON RIVER LEVEE. CARBURETOR TO MANIFOLD TUBE HAD BECOME DISLODGED. REPLACED TUBE, ENGINE FUNCTIONED NORMALLY. THIS AIRCRAFT FUEL SYSTEM IS GRAVITY FLOW AND IS PLACARDED TO TURN OSDR 95ZZZX3267Valve · wornENGINE WAS OVERHAULED 7-25-94. SPIRIT AIR VALVES, PN AL19001 AND AL73938, WERE INSTALLED NEW AT THAT TIME. AT 165.0 HOURS TSO, ENGINE RAN ROUGH. INSPECTION REVEALED ALL EXHAUST VALVES, PN AL19001, HAD ABNORMAL WEAR, ONE BEING EXTREME AND VERY NEAR FAILURE. SDR 95ZZZX3213Bushing · splitFOUND NR 1 PISTON PIN ROD BUSHINGS CRACKED CIRCUMFERENCE WISE .3750 INCH AND SPLIT ABOUT .0312 INCH. FOUR OUT OF 6 BUSHINGS CRACKED. NR 2 CYLINDERS WERE REMOVED FOR LOW COMPRESSION AT ANNUAL.
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