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 95ZZZX5111Gasket · leakingON 100-HOUR ENGINE INSPECTION, NR 1 CYLINDER WAS FOUND TO HAVE A LEAKING PUSHROD GASKET. UPON REMOVING ROCKER COVER TO REPLACE PUSHROD GASKET, THE SHROUD TUBE SPRING WAS FOUND BROKEN. UPON RESEARCH, FOUND THIS ENGINE WAS NOT EFFECTED BY LYCOMING SB 519, DUE SDR 95ZZZX5110Spring · brokenON 100-HOUR ENGINE INSPECTION, NR 1 CYLINDER WAS FOUND TO HAVE A LEAKING PUSHROD GASKET. UPON REMOVING ROCKER COVER TO REPLACE PUSHROD GASKET, THE SHROUD TUBE SPRING WAS FOUND BROKEN. UPON RESEARCH, FOUND THIS ENGINE WAS NOT EFFECTED BY LYCOMING SB 519, DUE SDR 95ZZZX3270Valve Guide · excess wearC/W INSPECTION ITEM NR 9. REMOVAL OF ROCKER BOX COVERS EA400 HOURS AND FOUND EXCESSIVE EXHAUST DEPOSITS ON AND AROUND VALVE SPRINGS. C/W LYC SB 388B. EXHAUST VALVE GUIDE WEAR TO BE VERY EXCESSIVE .050 INCH PLUS ON FIVE OF THE SIX CYLINDERS, 837.00 HOURS SINSDR 95ZZZX3247Guide · out of limitsSIX EACH EXHAUST VALVE GUIDES DEFECTIVE OUT OF 6 EACH NEW TCM CYLINDERS. ALL GUIDES ARE OUT OF NEW LIMITS AND TAPERED FROM TOP TO BOTTOM. TOTAL OF 18 EXHAUST GUIDES, PN 643767, REPORTED OUT OF LIMITS BY SUBMITTER.SDR 95ZZZX3246Guide · out of limitsINSPECTION OF NEW PARTS FOUND 6 EACH INTAKE VALVE GUIDES DEFECTIVE OUT OF 6 EACH NEW TCM CYLINDERS. ALL GUIDES ARE OUT OF NEW LIMITS AND TAPERED FROM TOP TO BOTTOM. TOTAL OF 18 INTAKE GUIDES, PN 643766, REPORTED OUT OF LIMITS BY SUBMITTER.SDR 95ZZZX3245Housing · bolt detachedHOUSING FOR YEARS HAS BEEN INSTALLED WITH 4 EACH STD 1875 BOLTS AND THE TWO INTERNAL BOLTS WERE STD 1890 DRILLED HEADS FOR SAFETY WIRE, STD 1890 NOW IS CHANGED TO STD 1875 UNDRILLED AND INSTALLED WITH A PLAIN WASHER, AN960, AND MS535333 STARLOCK WASHER. ONE SDR 96ZZZX5210Cylinder · failedINTAKE SIDE ROCKER SHAFT BOSS BROKE. SHAFT BUSHINGS HAD BEEN INSTALLED.SDR 95ZZZX3132Cylinder · separatedCYLINDER HEAD SEPARATED COMPLETELY FROM BARREL. TOTAL TIME SINCE RE-BARREL, 18 HRS.SDR 95ZZZX3265Cylinder · boss brokenPILOT COMPLAINED OF ROUGH RUNNING ENGINE. UPON INVESTIGATION, FOUND NR 4 CYLINDER ROCKER SHAFT BOSSES (3 EACH) BROKEN OFF. CYLINDER HAD ONLY 1283 HOURS SINCE OVERHAUL. SEE AD 94-05-05.SDR 97ZZZX1151Cover · holedA HOLE WAS FOUND IN THE VALVE COVER. THE SHAFT OF THE VALVE ROCKER ROTATED AND WORE THROUGH THE SIDE OF THE VALVE COVER. SUBMITTER STATED HAVE SEEN SIGNS OF THIS KIND OF WEAR, BUT NOT TO THIS DEGREE,3 OF THE REMAINING 6 CYLS SHOWED SOME SIGNS AND WERE REPLACESDR 95ZZZX3131Piston Pin · wrong partAFTER REMOVAL OF NR 5 CYLINDER DUE TO LOW COMPRESSION (PAST THE RINGS), NOTED THE PISTON PIN WAS SHORTER THAN USUAL. FROM ITS APPEARANCE, IT WAS FROM A SMALLER BORE CYLINDER LIKE AN O-470. SHORT PINS WERE ALSO FOUND IN NR 3, NR 4, AND NR 6.SDR 95ZZZM179Stud · brokenDEPARTED FROM INAGUA, BAHAMAS, AFTER ABOUT 20 MINUTES RT ENGINE OIL PRESSURE DROPPED TO RED LINE AND ENGINE WAS SHUT DOWN. THE AIRCRAFT RETURNED TO INAGUA. AFTER INSPECTION THE RT ENG, FOUND 4 STUDS ON NR 2 CYLINDER BROKEN. REMOVED THE CYLINDER AND REPLACEDSDR 95ZZZX2946Intake Tube · crackedON 100-HOUR INSPECTION, FOUND FUEL STAIN NR 6 INT PIPE - FOUND CRACKED 60 PERCENT OF FLANGE - REPLACED WITH NEW PN 633728 TUBE - THIS ENG HAS 684 HRS SINCE O/H AND APPEARS TO BE A SPRAY CAN OVERHAUL.SDR 95ZZZX3015Cylinder · failedNR 12 CYLINDER SKIRT CRACKED AND BROKE OFF IN-FLIGHT AFTER CHAFING MOST OF ONE SIDE OF PISTON AWAY.SDR 95ZZZX3146Cylinder · pittedUPON REMOVAL OF CYLINDERS (PN LW-1663) FOR ACCOMPLISHMENT OF STC SE792NW (INCREASE IN HORSEPOWER FROM 112 HP TO 125 UP), ALL FOUR CYLINDER WALLS SHOWED CONSIDERABLE PITTING. CAMSHAFT (PN 75706) LOBES AND LIFTERS (PN 71105) SHOWED FLAT SPOTTING, PITS, AND EXCESDR 95ZZZX3524Cylinder · head separatedPILOT REPORTED A LOUD 'BANG' AND IMMEDIATE ROUGH RUNNING ENGINE 10 MILES OUT FROM LANDING. AIRPORT AND LANDING WERE MADE WITHOUT INCIDENT. INSPECTION FOUND NR 5 CYLINDER HEAD HAD SEPARATED FROM CYLINDER BARREL. ANNUAL INSPECTION HAD BEEN COMPLETED 11 HOURS SDR 95ZZZX3505Piston Pin · fracturedWHEN REMOVING NR 2 AND NR 5 CYLINDERS TO CORRECT LOW COMPRESSION (LEAKING PAST RINGS), BOTH PISTON PINS WERE FOUND BROKEN IN TWO.SDR 95ZZZX3504Piston Pin · fracturedWHEN REMOVING NR 2 AND NR 5 CYLINDERS TO CORRECT LOW COMPRESSION (LEAKING PAST RINGS), BOTH PISTON PINS WERE FOUND BROKEN IN TWO.SDR 95ZZZX3063Cylinder · ring failureOTZ - FLT 43 - ABORTED TAKEOFF FROM OTZ DUE TO NR 3 ENGINE BACKFIRING. MAINTENANCE REPLACED NR 14 CYLINDER DUE TO RING LAND FAILURE.SDR 95ZZZX3062Rocker Assy · brokenFLT 80 - SHUT DOWN NR 1 ENGINE DUE TO CONTINUOUS BACKFIRING IN AUTO RICH AT 1827Z. MAINTENANCE REPLACED BROKEN EXHAUST VALVE ROCKER ASSY AND PUSHROD ON NR 10 CYLINDER.SDR 95ZZZX6700Cylinder · crackedTHE PILOT COMPLETED THE FIRST SWATH AND INITIATED A CLIMB TO REVERSE DIRECTION. WHILE THE AIRPLANE WAS IN A NOSE HIGH ATTITUDE AT ABOUT 200 FEET ABOVE THE GROUND, THE ENGINE LOST POWER. DURING THE FORCED LANDING TO A WHEAT FIELD, THE AIRCRAFT SUSTAINED STRUCSDR 95ZZZX3219Valve Key · brokenFOUND EXHAUST VALVE KEY HAD BROKEN AND WORN ABOUT ONE-THIRD OF THE DIAMETER OF THE VALVE STEM.SDR 95ZZZX3239Pushrod · tip failedPUSHROD TIP SEPARATION. SECOND FAILURE ON THIS ENGINE. TOTAL TIME 6696. ENGINE TSMOH 366. REMOVED PN 73806. REPLACED WITH NEW PUSHROD PN 73806, REV A.SDR 95ZZZX2725Retain Stud · backed outAFTER APPROXIMATELY 5 MINUTES IN CRUISE FLIGHT, THE PILOT REPORT A LOSS OF ENGINE POWER AND A SEVERE ROUGHNESS AND AN AIRPORT LANDING WAS MADE WITHOUT INCIDENT. INVESTIGATION REVEALED NR 4 CYLINDER INTAKE VALVE PUSH ROD AND SHROUD WERE BURNED AND LEAKING OIL.SDR 95ZZZX4263Ring · brokenOIL ANALYSIS SHOWING ALUMINUM HIGH. THEN IRON, NICKEL, CHROME. COMPRESSION GOOD, UNTIL TIME ON ENGINE OVER 600 HOURS AND COMPRESSION DROPPED TO 60/80 ON NR 2 CYLINDER. PULLED CYLINDER, FOUND BROKEN RING TOP COMPRESSION.SDR 95ZZZX4187Gasket · leakMANITA GASKET PMA PART FOR INTAKE GASKET FOR LYCOMING 0320. BLOWS OUT OF SIDE CAUSING INTAKE LEAK. FIRST ONE AT 150 HOURS SMO, AND SAMPLE AT 260 HOURS.SDR 95ZZZX2728Valve · wornENGINE RAN ROUGH AT IDLE AND LOUD MECHANICAL NOISES WERE REPORTED. VISUAL INSPECTION OF ENGINE BEFORE DISASSEMBLY SHOWED ZERO VALVE STEM TO ROCKER CLEARANCE. DISASSEMBLY OF CYLINDER SHOWED EXHAUST VALVE PN AL19001 WORN EXCESSIVELY IN THE RETAINER GROOVE. RESDR 95ZZZX2727Valve · wornENGINE RAN ROUGH AT IDLE AND LOUD MECHANICAL NOISES WERE REPORTED. VISUAL INSPECTION OF ENGINE BEFORE DISASSEMBLY SHOWED ZERO VALVE STEM TO ROCKER CLEARANCE. DISASSEMBLY OF CYLINDER SHOWED EXHAUST VALVE PN AL19001 WORN EXCESSIVELY IN THE RETAINER GROOVE. RESDR 95ZZZX3056Piston · ring failureFLT 40 - SHUT DOWN NR 3 ENGINE DUE TO BACKFIRING AND RUNNING ROUGH AT 2145Z. MAINTENANCE REPLACED NR 18 CYLINDER DUE PISTON RING LAND FAILURE.SDR 95ZZZX5945Rings · seizedTHE OPERATOR REPORTED EXCESSIVE OIL CONSUMPTION. COMPRESSION ON CYLINDERS 2, 4, AND 6 WAS BELOW MINIMUMS WITH BLOWBY BY PISTON RINGS. DISASSEMBLY REVEALED THE RINGS ON ALL THREE PISTIONS WERE SEIZED DUE TO CARBON BUILD-UP. THE ENGINE HAS BEEN SERVICED WITH SDR 95ZZZX2889Cylinder · crackedENGINE OPERATION BECAME ROUGH IN-FLIGHT. AIRCRAFT WAS LANDED TO INVESTIGATE THE PROBLEM. FOUND CYLINDER NR 4 HAD CRACKED AND THE HEAD HAD SEPARATED.SDR 95ZZZX2548Valve Guide · wornSIX EACH EXHAUST VALVE GUIDES OUT OF NEW LIMITS, .0006 (SIX-TENTHS OF ONE THOUSANDTH).SDR 95ZZZX2547Valve Guide · wornSIX EACH INTAKE VALVE GUIDES OUT OF NEW LIMITS, .0005 INCH (ONE-HALF THOUSANDTHS) AND TAPERED FROM TOP TO BOTTOM.SDR 95ZZZX3057Cylinder · crackedFLT 20 - SHUT DOWN NR 4 ENGINE DUE TO LOSS OF BMEP AT 1752Z ON CLIMB-OUT AND ROUGH RUNNING ENGINE. MAINTENANCE REPLACED NR 2 CYLINDER DUE TO CRACKED HEAD.SDR 95ZZZX2627Valve Guide · wornCYLINDER REMOVED DUE TO LOW COMPRESSION. FOUND .010 INCH WEAR IN EXHAUST GUIDE ALLOWING EXHAUST VALVE TO WEAR SEAT AND VALVE FACE. THIS WAS A FACTORY NEW ENGINE. VALVE GUIDE, PN 77160. VALVE, PN LW19001.SDR 95ZZZX2543Ring · stuckENGINE HAS BEEN RUN WITH MOBIL AV-1 ENGINE OIL. ENGINE STARTED TO BLOW OIL OUT OF BREATHER TUBE. ENGINE DISASSEMBLED AND INSPECTED TO DETERMINE CAUSE. FOUND ALL OIL RINGS STUCK IN PISTONS DUE TO LEAD BUILD-UP. FOUND CYLINDER WALLS WORN, FOUND EXCESSIVE SLUSDR 95ZZZX3060Cylinder · crackedFLT 80 - SHUT DOWN NR 1 ENGINE AT 2207Z DUE TO RUNNING ROUGH. REPLACED NR 4 CYLINDER DUE TO CRACKED HEAD.SDR 95ZZZX3216Ring · brokenENGINE SHUT DOWN IN-FLIGHT DUE TO LOSS OF OIL PRESSURE. INVESTIGATION REVEALED BROKEN COMPRESSION RINGS ON 1 CYLINDER AND SEVERELY WORN RINGS ON ANOTHER. THESE WERE NUCHROME CYLINDERS WITH 153.2 HOURS SINCE NEW. ENGINE OVERHAUL AGENCY INDICATED THEY HAVE SESDR 95ZZZX2680Valve · brokenWHILE IN CRUISE, EXHAUST VALVE BROKE APPROXIMATELY ONE-HALF WAY UP THE STEM. THE CYLINDER HEAD AND THE PISTON WERE RENDERED UNSERVICEABLE DUE TO THEIR COMBINED EFFORT TO BREAK THE VALVE INTO SMALL ENOUGH PIECES TO BLOW THEM OUT THE EXHAUST SYSTEM.SDR 95ZZZX2314Ring · brokenPISTON SCRAPER RING WAS BROKEN AT ASSEMBLY. PART OF THE BROKEN RING WAS IN THE OIL SUMP.SDR 95ZZZX2271Piston · ring brokenPISTON SCRAPER RING WAS BROKEN AT ASSEMBLY. PART OF THE BROKEN RING WAS IN THE OIL SUMP. THIS ENGINE HAS NEVER BEEN INSTALLED IN AN AIRCRAFT.SDR 95ZZZX3792Valve · failedWHILE IN-FLIGHT CRUISE, THE HEAD OF THE EXHAUST VALVE BROKE OFF THE VALVE STEM CAUSING INTERNAL ENGINE DAMAGE. THE AIRCRAFT MADE AN EMERGENCY LANDING ON A SHORT GRASS RUNWAY CAUSING SUBSTANTIAL DAMAGE TO AIRCRAFT. THIS INSPECTOR HAS WITNESSED THIS BEFORE ON SDR 95ZZZX2394Rocker Arm · misinstalledPERFORMED 400-HOUR VALVE INSPECTION, AND FOUND ALL ROCKER ARMS REVERSED ON ALL 6 CYLINDERS. EXHAUST ROCKER ARM OIL PORT SHOULD SPRAY OIL TOWARDS VALVE AND INTAKE ROCKER ARM OIL PORT SHOULD SPRAY OIL TOWARDS PUSH ROD ON THIS ENGINE.SDR 95ZZZX2675Cylinder · separatedNO LOG BOOKS AVAILABLE AT TIME OF REPORT. NR 5 CYLINDER HEAD COMPLETELY SEPARATED FROM BARREL. SEPARATION OCCURRED IN ALUMINUM HEAD AT EXTREME TOP OF STEEL BARREL. NO DAMAGE OCCURRED IIN BARREL THREADED AREA. CYLINDER PREVIOUSLY CHROME PLATED AND IS MARKEDSDR 95ZZZX2389Cylinder · crackedENGINE HAD MINOR OIL LEAK FOR APPROXIMATELY 100 HOURS. IN ONE WEEK, OIL LEAK BECAME SEVERE. FOUND NR 2 CYLINDER BARREL CRACKED ABOUT 4 INCHES FORM BASE OF CYLINDER. CYLNDER HELD 74 POUNDS OF COMPRESSION. SUBMITTER IS OF THE OPINION THE CRACK WAS CAUSED FROSDR 95ZZZX3084Cylinder · holeDURING AN APPROACH TO LANDING, PILOT REPORTED A VIBRATION IN THE LEFT ENGINE AND OIL LEAKING FROM THE COWLING. HE PERFORMED A PRECAUTIONARY SHUT DOWN AND MADE AN UNEVENTFUL LANDING. INSPECTION REVEALED A HOLE IN NR 1 CYLINDER UNDER THE INTAKE PUSHROD HOUSINGSDR 95ZZZX2429Cylinder · holedDURING AN APPROACH TO LANDING, PILOT REPORTED A VIBRATON IN THE LEFT ENGINE AND OIL LEAKING FROM COWLING. A PRECAUTIONARY SHUT DOWN MADE AND PILOT MADE AN UNEVENTFUL LANDING. INSPECTION REVEALED A HOLE IN NR 1 CYLINDER UNDER THE INTAKE PUSH ROD HOUSING. THESDR 95ZZZX2423Through-Bolt · failedSUBJECT NR 1 CYLINDER UPPER THROUGH-BOLT FOUND BROKEN DURING PRE-FLIGHT. DETECTED AS THE MAJOR REMAINING PORTION AND HOLD-DOWN NUT FOUND BACKED OUT OF POSITION AND LODGED AGAINST CYL FINS. INST NEW BOLT, SPACER, AND NUT. TORQUED PER LYCOMING S.I. 10293. BOLSDR 95ZZZX6142Pipe · crackedREPLACED PARTS RECEIVED BACK FROM OVERHAUL AGENCY FOLLOWING PROP STRIKE DISASSEMBLY INSPECTIONS, INCLUDED A PN SL-1024J PISTON AND SUBJECT NR 3 CYL INTAKE PIPE. PISTON EXHIBITED EARLY STAGES OF TYPICAL DETONATION DAMAGE ON THE HEAD, ADJACENT TO ITS O.D., AT TSDR 95ZZZX2427Intake Pipe · crackedREPLACED PARTS RECEIVED BACK FROM OVERHAUL AGENCY FOLLOWING PROP STRIKE DISASSEMBLY INSPECTIONS INCLUDED A PN SL-10204J PISTON AND SUBJECT NR 3 CYL. INTAKE PIPE. PISTON EXHIBITED EARLY STAGES OF TYPICAL DETONATION DAMAGE ON THE HEAD, ADJACENT TO ITS O.D. AT T
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