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.

SDR 99ZZZX1605Keeper · wrong partWHILE INBOUND FOR LANDING, ENGINE BEGAN TO RUN ROUGH. PILOT LANDED SAFELY. MECHANIC REMOVED SPARK PLUGS. FOUND NR 2 CYLINDER PLUGS OILY. REMOVED ROCKER COVER TO FIND INTAKE ROCKER BROKEN. VALVE STEM REVEALED GALLING AND SHARP EDGES ON STEM. INTAKE VALVE Mar 13, 1999 · N16245 · Cessna 150LSDR 99ZZZX1554Valve · damagedEXHAUST VALVE STUCK CAUSING ZERO COMPRESSION AND BENT PUSH ROD. OVERHAUL SHOP REPORTED GALLING OF VALVE STEM AND GUIDE. NO INDICATION AS TO CAUSE.Mar 9, 1999 · N94PF · Piper PA28161SDR 99ZZZX1389Push Rod · failedTWO SEPARATE ENGINE FAILURES BEFORE CYLINDER REPLACED UNDER WARRANTY BY LYCOMING. SIGNIFICANT ALUMINUM FILINGS IN OIL SINCE REPLACEMENT.Mar 7, 1999 · N1083L · Mooney M20JSDR CA990401001Cylinder · separated(CAN) ON CLIMB-OUT, PILOT REPORTED THE ENGINE STARTED TO LOOSE POWER. PILOT RETURNED TO POINT OF DEPARTURE. POST-FLIGHT INSPECTION REVEALED THE NR 9 CYLINDER HAD SEPARATED. THE NR 9 CYLINDER WAS REPLACED AND THE AIRCRAFT RETURNED TO SERVICE.Mar 4, 1999 · Dhav DHC2MK1SDR 99ZZZX1456Pushrod · crackedUPON 100-HOUR INSPECTION TO DETERMINE APPLICABILITY TO AD 80-25-02 R2, NOTED THAT NR 4 CYLINDER INTAKE PUSH ROD P/N 73806T-T WHICH DOES NOT APPLY TO AD, WAS FOUND CRACKED AT END OF ALUMINUM TUBE THAT SWAGES ONTO BALL END OF PUSH ROD, TWO CRACKS WERE OBVIOUS VIMar 3, 1999 · N67975 · Cessna 152SDR AU990330Cylinder · cracked(AUS) NR 1 CYLINDER HEAD SEPARATED FROM BARREL.Mar 2, 1999 · Dhav DHC2*SDR 99ZZZX1217Line · crackedCRACKED/BROKEN ELBOW ADAPTER WELD. AREA AROUND WELD WAS CRACKED CAUSING ADAPTER TO BREAK OFF WITH MINIMAL FORCE. WHEN ADAPTER BREAKS OFF, A 1 INCH HOLE IS LEFT IN AIR INLET PIPE CAUSING A DROP IN M.A.P.Feb 27, 1999 · N481CA · Piper PA32R301TSDR 99ZZZX1989Cylinder · mismanufacturedNATIONAL VENDOR SUPPLIED A NEW FACTORY IO520 CYLINDER. INSPECTION OF CARTON, NO SIGNS OF DAMAGE. INSPECTION OF CYLINDER SHOWS WHAT APPEARS TO BE A HAMMER BLOW TO THE INTAKE ROCKER BOSS MAKING A NEW CYLINDER SCRAP. VENDOR SUPPLIED ANOTHER NEW CYLINDER AND INFeb 22, 1999SDR 99ZZZX1446Valve · inoperativeDAY/NB9 - EN ROUTE AT CRUISE POWER, LEFT ENGINE STARTED RUNNING ROUGH. DIVERTED TO TDZ. FOUND ALL REAR CYLINDER VALVES NOT MOVING. SUSPECT REAR CAM RING FAILURE.Feb 22, 1999 · N36AP · Doug DC3CSDR 99ZZZX1072Exhaust Valve · failedENGINE RAN ROUGH IN-FLIGHT. CHECKED ENGINE CYLINDER COMPRESSION, FOUND NR 2 CYLINDER HAS NO COMPRESSION. REMOVED CYLINDER AND FOUND BAD EXHAUST VALVE. INSTALLED AND OVERHAULED CYLINDER. ENGINE RUN-UP GOOD.Feb 22, 1999 · N6124J · Piper PA28181SDR CA990323005Cylinder · failed(CAN) DETONATION OF NR 4 CYLINDER CAUSED SEVERE MELTING AND DETERIORATION OF NR 4 PISTON RING AND AREA, PRODUCING AN OPENING INTO THE BOTTOM OF THE PISTON. METAL CONTAMINATION FROM NR 4 CYLINDER DETONATION CAUSED OIL STARVATION TO THE BEARING SURFACES OF NR 2Feb 20, 1999 · Cessna 421CSDR CA990308004Piston · failed(CAN) PILOT REPORTED VIBRATION FOLLOWED BY LOSS OF OIL PRESSURE. IN-FLIGHT SHUTDOWN CARRIED OUT. POST-FLIGHT INVESTIGATION INDICATED PISTON FAILURE DUE TO DETONATION. FURTHER REPORT TO FOLLOW.Feb 20, 1999 · Cessna 421CSDR CA990318050Cylinder · fractured(CAN) PILOT REPORTED ROUGH RUNNING ENGINE AT HIGH RPM. RUN-UP FOUND NR 4 CYLINDER WAS COLD. THE ROCKER COVER WAS REMOVED AND THE ROCKER SHAFT, ROCKERS AND BOSSES BROKEN. ALL FOUR CYLINDERS WERE REPLACED.Feb 18, 1999 · Fleet FLEET80SDR CA990226010Piston · worn(CAN) DURING INSPECTION THE COMPRESSION ON NR 1 CYLINDER WAS 67/80 AND THERE WERE NON-MAGNETIC PARTICLES IN THE OIL FILTER. CYLINDER NR 1 WAS REMOVED AND MANY PARTS OF THE PISTON HAD DISINTEGRATED AT THE TOP COMPRESSION RING. THE RING WAS BROKEN. THE TOLERAFeb 18, 1999 · Cessna 150MSDR AU990138Bolt · wrong part(AUS) CONNECTING ROD BOLTS INCORRECT PART. BOLTS P/N LW12596 (12OFF) WERE ORDERED. WHEN THE ORIGINAL LYCOMING PACKAGING WAS OPENED THE BOLTS APPEARED TO BE TORQUE TYPE BOLTS INSTEAD OF THE CORRECT STRETCH TYPE BOLTS.Feb 12, 1999SDR CA990330017Piston · cracked(CAN) IN CRUISE, THE ENGINE BEGAN TO RUN ROUGH. ENGINE WAS SHUT DOWN AND AIRCRAFT LANDED. POST-FLIGHT INSPECTION FOUND A CYLINDER PISTON CRACKED.Feb 11, 1999 · Cessna 337DSDR 99ZZZX1429Valve · wornAT ENGINE TT 378.8 HOURS, REMOVED ALL CYLINDERS AND HONED DUE TO 'GLAZING'. AT ENGINE TT 380.0 HRS, PILOT REPORTED ENGINE RUNNING ROUGH. REPLACED NR 6 CYLINDER ASSY DUE TO 'LOW' COMPRESSION 20/80 PSI. FURTHER INSPECTION OF CYLINDER REVEALED EXCESSIVELY WORN IFeb 11, 1999 · N4689U · Cessna U206GSDR 99ZZZX1405Piston · failedDURING CLIMB, ENGINE LOST POWER. AIRCRAFT MADE EMERGENCY LANDING. NR 2 PISTON HAD HOLE THROUGH SIDE IN RING LAND AREA. NOSE SEAL DISLODGED, ALL OIL LOST OVERBOARD. CRANKSHAFT BEARINGS OVERHEATED. BAD MAG DROP REPAIRED BY CLEANING PLUGS PRIOR TO FLIGHT.Feb 11, 1999 · N76SW · Amtr SEAWIND3000SDR CA990308005Cylinder · separated(CAN) PILOT REPORTED ENGINE BACKFIRING ON START/TAXI, ENGINE WAS RUN FOR 30 MINUTES. AFTER ENGINE SHUTDOWN, INSPECTION FOUND THE NR 6 CYLINDER HEAD, ON THE NR 2 ENGINE WAS SEPARATED FROM THE BARREL.Feb 10, 1999 · Piper PA31350SDR AU990097Valve · faulty(AUS) NR 6 CYLINDER EXHAUST VALVE STEM BREAKING UP. STEM COULD BE MARKED EASILY INDICATING SOFT MATERIAL. VALVE STEM WAS FOUND TO BE WORN BY 0.1778 MM (0.007 INCH) IN THE VALVE GUIDE CONTACT AREA. THE ENGINE HAD BEEN FACTORY REMANUFACTURED 284 HOURS PREVIOUFeb 5, 1999 · Beech 35B33SDR 99ZZZX918Cylinder · mismanufacturedAT INSTALLATION HOLE WHERE FUEL INJECTOR MOUNTS WAS FOUND TO NOT HAVE ANY THREADS. POSSIBLE CAUSE IS LACK OF QUALITY CONTROL IN THE MACHINING PROCESS AT THE FACTORY.Feb 5, 1999SDR 99ZZZX2387Piston Ring · mismanufacturedAT INSTALLATION, 5 OUT OF 6 SETS OF RINGS WERE DISCOVERED TO HAVE CHIPS IN THE CHROME ON THE OUTER CIRCUMFERENCE OF THE 2ND COMPRESSION RING. SUBMITTER SUGGESTED A POSSIBLE CAUSE AS LACK OF QUALITY CONTROL AT THE FACTORY.Feb 5, 1999SDR 99ZZZX963Stud · brokenPILOT REPORTED LOSS IN ENGINE POWER WHILE AIRCRAFT IN CRUISE POWER SETTING. INSPECTION REVEALED BROKEN CYLINDER HOLD-DOWN STUDS, CYLINDER NR 3. SUBMITTER SUGGESTED UNDER OR OVERTORQUE POSSIBLY A CONTRIBUTING FACTOR IN HOLD-DOWN STUDS FAILURE.Feb 3, 1999 · N333WS · Mooney M20ESDR 99ZZZX956Retainer · crackedUPON COMPLETION OF CSB 98-1A, FOUND THAT NR 2 CYLINDER EXHAUST ROCKER SHAFT RETAINER WAS CRACKED. SUBMITTER SUGGESTED A POSSIBLE CAUSE IS OVERTORQUING OF ROCKER SHAFT RETAINER NUT OR MANUFACTURER DEFECT.Feb 3, 1999 · N2610M · Piper PA28R201TSDR 99ZZZX1008Cylinder · misoverhauledUPON INSTALLING AN OVERHAULED CYLINDER, NOTED THE CYLINDER WAS NOT ALIGNED WITH THE ONE NEXT TO IT AT THE ROCKER BOX AREA. THE SHORTEST PUSH ROD WOULD NOT GO IN. IT WAS FOUND OUT THAT THE CYLINDER WAS TOO SHORT AFTER OVERHAUL. ANOTHER CYLINDER WAS PUT ON ANFeb 3, 1999 · N51RF · Gulstm 500SSDR 99ZZZX989Piston Pin · wornNEW CESSNA WITH 24.1 HOURS, DRAINED OIL AND REPLACED OIL FILTER. WHEN FILTER WAS CUT OPEN AND INSPECTED FOUND EXCESSIVE AMOUNT OF ALUMINUM IN FILTER. NOTIFIED CESSNA AND LYCOMING. THEY REQUIRED A PIECE OF FILTER TO ANALYZE. AFTER ANALYSIS, LYCOMING ADVISEDJan 28, 1999 · N494SP · Cessna 172SSDR 99ZZZX988Piston Pin · wornNEW CESSNA WITH 24.1 HOURS, DRAINED OIL AND REPLACED OIL FILTER. WHEN FILTER WAS CUT OPEN AND INSPECTED FOUND EXCESSIVE AMOUNT OF ALUMINUM IN FILTER. NOTIFIED CESSNA AND LYCOMING. THEY REQUIRED A PIECE OF FILTER TO ANALYZE. AFTER ANALYSIS, LYCOMING ADVISEDJan 28, 1999 · N494SP · Cessna 172SSDR 99ZZZX987Piston Pin · wornNEW CESSNA WITH 24.1 HOURS, DRAINED OIL AND REPLACED OIL FILTER. WHEN FILTER WAS CUT OPEN AND INSPECTED FOUND EXCESSIVE AMOUNT OF ALUMINUM IN FILTER. NOTIFIED CESSNA AND LYCOMING. THEY REQUIRED A PIECE OF FILTER TO ANALYZE. AFTER ANALYSIS, LYCOMING ADVISEDJan 28, 1999 · N494SP · Cessna 172SSDR 99ZZZX986Piston Pin · wornNEW CESSNA WITH 24.1 HOURS, DRAINED OIL AND REPLACED OIL FILTER. WHEN FILTER WAS CUT OPEN AND INSPECTED FOUND EXCESSIVE AMOUNT OF ALUMINUM IN FILTER. NOTIFIED CESSNA AND LYCOMING. THEY REQUIRED A PIECE OF FILTER TO ANALYZE. AFTER ANALYSIS, LYCOMING ADVISEDJan 28, 1999 · N494SP · Cessna 172SSDR 99ZZZX982Cylinder · damagedEXHAUST VALVE SEAT LOOSENED FROM CYLINDER HEAD CAUSING EXHAUST VALVE TO MISALIGN, AND DAMAGE CYLINDER HEAD. SUBMITTER STATED LOOSE INTERFERENCE FIT BETWEEN VALVE SEAT AND CYLINDER HEAD, AND HIGH CHT DUE TO PROBLEM IN TURBO SYSTEM MAY HAVE CAUSED PROBLEM TO DEJan 28, 1999 · N4081F · Piper PA31310SDR 99ZZZX940Cylinder · damagedHEAD SEPARATION AT BARREL THREADS. CRACK PRODUCED STARTING AT HEAD AND BARREL ATTACHING THREADS DUE TO AGING CYLINDER.Jan 28, 1999 · N1852T · Piper PA28140SDR AU990090Piston · damaged(AUS) NR 6 CYLINDER PISTON DAMAGED DUE TO DETONATION. METAL CONTAMINATION OF THE ENGINE. ENGINE FACTORY REMANUFACTURED 457.1 HOURS PREVIOUSLY. PART TC: 457.Jan 27, 1999 · Cessna 337GSDR CA990202011Lifter · worn(CAN) DURING INSPECTION, METAL WAS DETECTED IN BOTH ENGINE OIL FILTERS. THE METAL WAS SENT TO LYCOMING FOR ANALYSIS. IT WAS DETERMINED THE METAL CAME FROM THE HYDRAULIC LIFTER HOUSING. THE TWO ENGINES WERE TAKEN OUT OF SERVICE AND SENT FOR REPAIR.Jan 22, 1999 · Piper PA34200SDR AU990416035Rocker Boss · worn(AU) INSPECTION FOUND THERE WAS EXCESSIVE ROCKER SHAFT TO ROCKER SHAFT BOSS CLEARANCE ON THE INTAKE SIDE OF TWO SEPARATE CYLINDERS. THIS CLEARANCE WAS MEASURED AT 0.008 INCH.Jan 22, 1999 · Piper PA38112SDR 99ZZZX1387Cylinders · crackedCYLINDERS WERE FOUND CRACKED DURING COMPRESSION CHECKS. THE ONLY WAY THE CRACKS WERE FOUND WAS BY USING LEAK CHECK FLUID AS THE COMPRESSION CHECKS WERE GOOD. NR 6 CYLINDER WAS REPLACED AT 50.0 HOURS PRIOR TO THIS BECAUSE OF A CRACK. THE CRACKS ARE ALL EMANATIJan 22, 1999 · N27JR · Cessna 210LSDR 99ZZZX583Rod · failedENGINE STARTED EXTREME VIBRATION CLIMBING THROUGH 13,000 FEET. OIL LEAK OBSERVED COMING FROM LOUVERS. ENGINE WAS SHUT DOWN AND PROPELLER FEATHERED. INSPECTION REVEALED 2 HOLES IN CASE HALVES ABOVE NR 1 AND NR 2 CYLINDERS. NR 1 CYLINDER ROD BROKEN. SEVERALJan 15, 1999 · N637DT · Cessna 421CSDR 99ZZZX529Pin · wornEXCESSIVE PIN WEAR IN WALL OF CYLINDER IN 1,541 HOURS TOTAL TIME. ALL FOUR CYLINDERS WERE NEW STEEL CYLINDERS. ENGINE IS O320-H2AD. ENGINE PULLED BECAUSE OF CRACKED CASE.Jan 15, 1999SDR 99ZZZX523Valve · looseDURING FLIGHT, ENGINE STARTED RUNNING VERY ROUGH, HAD POWER LOSS. AFTER LANDING, INSPECTION FOUND NR 1 CYLINDER EXHAUST VALVE ROCKER ARM SHAFT RETAINING PLATE HAD COME OFF ALLOWING THE ROCKER SHAFT TO SLIDE OUT. THE ROCKER THEN WAS PUSHED OUT BY THE PUSH RODJan 15, 1999 · N200HM · Piper PA32R300SDR CA990219025Seal · leaking(CAN) INTAKE VALVE ON NR 3 CYLINDER LEAKING CAUSING ACCUMULATION OF FUEL IN EXHAUST, RESULTING IN VISUAL FLAME.Jan 8, 1999 · Cessna 404CESSNASDR CA990115029Valve · sticking(CAN) INTAKE VALVE STICKING OPEN CAUSING LOSS OF POWER.Jan 7, 1999 · Cessna 150MSDR 99ZZZX381Valve · brokePILOT REPORTED SUDDEN PARTIAL LOSS OF POWER, ENG RUNNING ROUGH. SWITCHED MAGS AND APPLICATION OF CARB HEAT, NO HELP. CONTINUED FLT TO HOME AIRPORT, MADE SUCCESSFUL LANDING. POWER REDUCED AFTER LANDING, ENG QUIT, COULD NOT BE RE-STARTED. INSP NR 3 CYL, NO CJan 6, 1999SDR CA990119044Bolt · fractured(CAN) THE NR 2 CYLINDER ROCKER COVER HOLD-DOWN BOLTS BROKE, SENDING INTAKE BOLT UPPER BROKEN HALF THROUGH THE ROCKER COVER. THE CYLINDER WAS REMOVED AND SENT FOR REPAIR. NO OTHER DAMAGE WAS FOUND TO THE CYLINDER OR THE PISTON. ALL OTHER HOLD-DOWN BOLTS WERE Jan 5, 1999 · Piper PA46310PSDR 99ZZZX365Crankcase · crackedDURING A PHASE 3 INSPECTION, A 1.50 INCH CRACK WAS NOTED ABOVE THE LEFT ENGINE, NR 2 CYLINDER. PER M90-17, THIS WAS IN A NON-CRITICAL AREA, SO THE CRACK WAS SCRIBE MARKED AND RETURNED TO SERVICE. DURING THE PHASE 4 INSPECTION, THE CRACK WAS NOTED TO HAVE PROJan 4, 1999 · N883FL · Cessna 421CSDR 99ZZZX398Plug · wornDURING A NIGHT TRAINING FLIGHT, THE CREW NOTICED AN ENGINE VIBRATION THAT BECAME VIOLENT OVER A SHORT PERIOD OF TIME. DURING LANDING, THE OIL PRESSURE WENT TO ZERO PSI. THE NR 4 PISTON WAS FOUND DESTROYED. THE PISTON PIN PLUGS (LYC P/N LW-11775) WERE WORN SDec 28, 1998 · N476ER · Cessna 172RSDR CA990115028Ring · broken(CAN) NR 3 CYLINDER REPLACED DUE TO BROKEN RING.Dec 23, 1998 · Parten P68CSDR AU981692Lifter · pitted(AUS) NR 6 CYLINDER VALVE LIFTER WAS REMOVED AND FOUND DEFECTIVE - LIFTER FACE DETERIORATING DUE TO PITTING. PART TC: 1,148.Dec 22, 1998 · Cessna 210NSDR 99ZZZX1556Valve · damagedEXHAUST VALVE STUCK CAUSING BENT PUSH ROD. ENGINE REPORTED ROUGH ON RUN-UP. ZERO COMPRESSION ON NR 2 CYLINDER. CYLINDER REMOVED AND OVERHAULED.Dec 22, 1998 · N94PF · Piper PA28161SDR 99ZZZX367Valve · failedENGINE STOPPED IN-FLIGHT. FOUND NR 4 CYLINDER INTAKE VALVE BROKEN, INTAKE VALVE PART NUMBER UNKNOWN. ENGINE TSMOH: 117.9 HOURS.Dec 21, 1998 · N75709 · Cessna 172NSDR 99ZZZX338Valve Guide · wornDURING A ROUTINE 100-HOUR INSPECTION, THE NR 4 CYLINDER WAS FOUND TO HAVE LEAKAGE PAST THE EXHAUST VALVE. FURTHER INVESTIGATION REVEALED A WORN OUT EXHAUST VALVE GUIDE. REPLACING THE GUIDE AND RE-FACING THE EXHAUST VALVE RESOLVED THE PROBLEM. SUBMITTER SUGGDec 21, 1998 · N954CC · Cessna 182QSDR CA990111001Stud · broken(CAN) DURING TAXI, A VIBRATION WAS FELT FROM THE ENGINE. INSPECTION AFTER RETURN TO RAMP FOUND ONE .50 INCH STUD AND THREE .3750 STUDS AT NR 1 CYLINDER BROKEN. ALL CYLINDERS WERE REMOVED AND INSPECTED FOR CRACKS AND CONFORMITY. ALL CYLINDERS WERE SERVICEABLDec 18, 1998 · Cessna 172P
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