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 CA960614006Valve · broken stem(CAN)#3 CYLINDER EXHAUST VALVE STEM BROKEN JUST BELOW THE HEAD.Jun 5, 1996 · Cessna 421CSDR AU960777Cylinder · separated(AUS) RH ENGINE NO5 CYLINDER HEAD SEPARATED FROM BARREL - SUSPECT PRE-EXISTING CRACKJun 3, 1996 · Cessna 310QSDR CA960614013Cylinder · cracked(CAN)ROUGH RUNNING ENGINE WITH A SLIGHT POWER LOSS. #2 CYLINDER HAD A SMALL HOLE IN THE HEAD AND SEVERAL CRACKS RADIATING FROM BOTH PLUG HOLES, ALSO, A 6 INCH CRACK AROUND THE HEAD AT THE TOP OF THE BARREL .Jun 1, 1996 · Cessna 210JSDR 96ZZZX3077Cylinder · defectiveROCKER STUD BACKED OUT CAUSING EXCESSIVE VALVE CLEARANCE WHICH CAUSED THE PUSHROD TO GET JAMMED AND BENT. CYLINDER WAS IN C/W SB 412B (AD 77-20-07) WHICH REQUIRES STUDS TO BE LOCKTITE INTO POSITION. CYLINDER WAS MARKED IAW THIS PROCEDURE. SUBMITTER SUGGESTSMay 29, 1996 · N75616 · Cessna 172NSDR AU960808Exhaust Valve · failed(AUS) LH ENGINE NO5 CYLINDER EXHAUST VALVE FAILED - SUSPECT CAUSED BY EXCESSIVE LEANING OF ENGINEMay 28, 1996 · Piper PA34200TSDR 96ZZZX4808Cylinder · wornCOMPRESSION CHECK INDICATES ALL 4 CYLINDERS NOT SERVICEABLE DUE TO LOW COMPRESSION. TSO: 689 HOURS. TT: 4,544 HOURS.May 28, 1996 · N377LC · Piper PA28RT201SDR 96ZZZX4807Cylinder · wornCOMPRESSION CHECK INDICATES ALL 4 CYLINDERS NOT SERVICEABLE DUE TO LOW COMPRESSION AT 110 HOURS TSO. TT: 4,950 HOURS.May 28, 1996 · N377LC · Piper PA28RT201SDR CA960604003Cylinder · not firing(CAN)IN CRUISE AT 9.5K, ENGINE RAN ROUGH AND BACKFIRED, SHUTDOWN.May 24, 1996 · Cessna 337GSDR AU960725Cylinder · cracked(AUS) ENGINE CYLINDER CRACKED FROM SPARK PLUG HOLEMay 24, 1996 · Cessna A185FSDR AU960668Cylinder · cracked(AUS) NO2 CYLINDER CRACKED IN AREA OF EXHAUST PORT - CRACKING ALSO FOUND BETWEEN THE VALVE SEATSMay 23, 1996 · Piper PA28161SDR 96ZZZX3199Piston · rings wornLOWER SPARK PLUG FOWLED WITH OIL. REMOVED CYLINDER ASSY AND FOUND UPPER FACE OF RINGS KNIFE EDGED. REMOVED AND REPLACED CYLINDER ASSY.May 22, 1996 · N4170R · Piper PA32300SDR AU960673Cylinder · failed(AUS) ENGINE NO2 CYLINDER HAD NIL COMPRESSION - LOSS OF OIL QUANTITY AND PRESSURE - METAL CONTAMINATION OF OIL FILTERMay 20, 1996SDR 96ZZZX3384Spring · brokenDURING A SCHEDULED INSPECTION, A CYLINDER WAS IN THE PROCESS OF BEING CHANGED DUE TO LOW COMPRESSION. UPON REMOVAL OF THE ROCKER COVER, ALL 4 VALVE SPRINGS WERE FOUND BROKEN. AFTER REMOVAL OF ALL ROCKER COVERS, ONLY ONE VALVE SPRING WAS INTACT. THERE WERE NMay 20, 1996 · N3246M · Cessna 402CSDR CA960611006Rocker Shaft · broken boss(CAN)ON TAKEOFF, AT FULL POWER, ABORTED DUE TO SEVERE ENGINE VIBRATION. #4 CYLINDER VALVE ROCKER SHAFT BOSSES BROKEN ACROSS BOTH VALVES.May 17, 1996 · Cessna 150LSDR CA960606004Valve Guide · loose(CAN)ON 100 HOUR INSPECTION, LOW COMPRESSION IN CYLINDER. EXHAUST VALVE GUIDE LOOSE IN CYLINDER HEAD.May 17, 1996 · Cessna 182SDR 96ZZZX2997Piston · ring brokeFIRST OR SECOND COMPRESSION RING BROKE CAUSING RING LANDS TO WEAR BETWEEN FIRST AND SECOND RING LAND AND THROUGH PISTON HEAD. COMBUSTION HEAT BURNED HOLE LARGER DIRECTING PRESSURE TO ENGINE CASE. THIS PRESSURE BLEW THE ENGINE OIL OVERBOARD. THIS RESULTED INMay 17, 1996 · N6565 · Scwzer G164ASDR 96ZZZX3211Cylinder · crackedPILOT REPORTED OIL LEAK ON THE LT ENGINE FOLLOWING A FLIGHT OF APPROXIMATELY 1 HOUR. MAINTENANCE UNCOWLED ENGINE AND DISCOVERED AN EXHAUST STUD FROM THE NR 4 CYLINDER HAD BACKED OUT OF EXHAUST FLANGE. STUD BOUNCED AGAINST THE PUSH ROD HOUSING WEARING A HOLE May 15, 1996 · N350MP · Piper PA31350SDR 96ZZZM1056Cylinder Assy · crackedFLT 312 - SHUTDOWN NR 1 ENGINE AT 1830Z DUE TO BACKFIRING IN RICH AND MANUAL LEAN. AIRCRAFT FERRIED TO ANC FROM ENM. MX REPLACED NR 13 CYLINDER ASSY DUE TO CRACKED HEAD. AIRCRAFT RETURNED TO SERVICE. (M)May 15, 1996 · N779TA · Doug DC6ASDR 96ZZZX2856Valve · pittedEDGE OF INTAKE VALVE APPEARS TO BE BREAKING OFF. EDGE IS ALSO CRACKED IN SEVERAL PLACES. VALVE FACE HAS PITTING ON ENTIRE SEALING SURFACE. METAL ON VALVE APPEARS TO HAVE CONTAMINATES UPON INVESTIGATION WITH 30X MAGNIFIER.May 14, 1996 · N5120H · Cessna 152SDR 96ZZZX2648Cylinder · crackedTHE CONTINENTAL STEEL CYLINDER CRACKED FROM THE SPARK PLUG BOSS TO THE AREA BEHIND THE FUEL NOZZLE. THE CYLINDER HAD A TOTAL TIME OF ONLY 1,019.0 HRS. THE CYLINDER STILL HELD GOOD COMPRESSION, BUT WITH A SOAP CHECK, THE AIR LEAK WAS EVIDENT. SUBMITTER STATEMay 14, 1996 · N1847F · Beech 58SDR 96ZZZX2868Valve Seat · dislodgedON A SHORT FLIGHT, A ROUGHNESS DEVELOPED IN THE LEFT ENGINE. NO EMERGENCY ACTION WAS REQUIRED. AFTER PERFORMING A COMPRESSION CHECK, FOUND THE EXHAUST VALVE SEAT ON NR 2 CYLINDER HAD BECOME DISLODGED CAUSING THE EXHAUST VALVE TO REMAIN PARTIALLY OPEN. THE CMay 13, 1996 · N62992 · Piper PA31325SDR AU960620Piston Ring · wrong part(AUS) INCORRECT PISTON RING SETS FITTED TO ALL PISTONS - PNO 632932 PISTONS FITTED WHICH SHOULD HAVE RECTANGULAR TOP RINGS AS PER SB M91-4 - PISTONS WERE FITTED WITH TAPERED RINGS - DAMAGE TO PISTONS AND MINOR SCORING TO CYLINDERS - VALVE SEATS APPEAR TO BEINMay 10, 1996 · Cessna 182ESDR 96ZZZM1055Cylinder Assy · ringland failureFLT 601 - SHUT DOWN NR 3 ENGINE AT 2030Z DUE TO BACKFIRING. AIRCRAFT RETURNED TO ANC. MX REPLACED NR 18 CYLINDER ASSY DUE TO RINGLAND FAILURE. AIRCRAFT RETURNED TO SERVICE. (M)May 10, 1996 · N434TA · Doug DC6BSDR AU960761Piston · burnt(AUS) NO4 ENGINE NO 10 CYLINDER PISTON BURNT - ENGINE OIL VENTING OVERBOARDMay 9, 1996 · Doug C54ESDR CA960522002Cylinder · cracked(CAN)SHORTLY AFTER TAKEOFF, #1 ENGINE BEGAN TO SHAKE AND MISS. AIRCRAFT RETURNED WHERE #1 CYLINDER WAS FOUND CRACKED ACROSS THE EXHAUST EAR. THIS CYLINDER APPEARS TO HAVE BEEN PREVIOUSLY REPAIRED BY WELDIN G.May 8, 1996 · Doug DC3CS1C3GSDR 96ZZZX3419Studs · failedENGINE SUDDENLY STARTED RUNNING ROUGH, LOSS OF POWER (PARTIAL) WHILE IN CRUISE FLIGHT 210. FOUND NR 1 CYLINDER EXHAUST ROCKER SHAFT HOLD-DOWN STUDS BROKEN. INVESTIGATION REVEALED IMPROPER TORQUE ON ROCKER SHAFT HOLD-DOWN STUDS.May 8, 1996 · N231PB · Mooney M20KSDR 96ZZZX2879Cylinder · head separatedON TAKEOFF, NR 1 CYLINDER SEPARATED AT THE HEAD CAUSING ENGINE POWER LOSS. PILOT SHUT DOWN LEFT ENGINE AND RETURNED TO AIRPORT. ENGINE AND CYLINDER HAD 757 HOURS SINCE OVERHAUL WITH .010 INCH OVERSIZED BARRELS. CYLINDER TOTAL TIME UNKNOWN.May 8, 1996 · N49TD · Cessna 421CSDR AU960597Valve Guide · worn(AUS) ENGINE CYLINDER EXHAUST VALVE GUIDES (3OFF) EXCESSIVELY WORN - VALVE GUIDES WERE WITHIN SERVICE LIMITS BUT WOULD NOT LAST TO THENEXT TOP END OVERHAULMay 7, 1996SDR 96ZZZX2658Spring · brokenENGINE WAS ASSEMBLED AND TEST CELL RUN 1-24-96. ENGINE WAS NOT INSTALLED UNTIL 5-6-96. WHILE INSTALLING ENGINE, PUSH ROD TUBES ON NR 4 CYLINDER WERE FOUND LOOSE. REMOVAL OF VALVE COVER AND CLOSE INSPECTION FOUND SPRING BROKEN IN 2 PLACES.May 7, 1996SDR 96ZZZX3561Cylinder · crackedINSPECTION FOUND NR 1 CYLINDER CRACKED HORIZONTALLY THROUGH SPARK PLUG BUSHING ON FORWARD FACE.May 6, 1996 · N48395 · Scwzer G164ASDR 96ZZZX2765Piston Pin · failedIT APPEARS THE PISTON PIN BROKE AND THE PISTON HIT THE CRANKSHAFT COUNTERWEIGHT WHICH BROKE A LARGE HOLE IN THE TOP OF THE CRANKCASE. THE AIRCRAFT WAS ON A CROSS-COUNTRY FLIGHT AT NORMAL CRUISE. WHEN THE VIBRATION STARTED, THE PILOT REDUCED POWER, BUT THE VIMay 4, 1996 · N2615S · Cessna 337CSDR CA960522009Cylinder · cracked(CAN)IN THE CIRCUIT, PILOT REPORTED AN ENGINE VIBRATION. #2 CYLINDER ROCKER SHAFT BOSS CRACKED.May 3, 1996 · Cessna 150MSDR AU960933Valve · broken(AUS) ENGINE NO3 CYLINDER EXHAUST VALVE BROKEN - DAMAGE TO PISTON AND CYLINDER BORE - SUSPECT CAUSED BY OPERATING ENGINE AT CONTINUOUS HIGH TEMPERATURES WITH LEAN MIXTURESMay 3, 1996 · Parten P68CSDR AU960715Cylinder · corroded(AUS) ENGINE CYLINDERS CRACKED AND CORRODED:- 1. TWO CYLINDERS EXCESSIVELY CORRODED/RUSTED IN AREA OF CYLINDER BASE 2. ONE CYLINDER CRACKED IN AREA OF UPPER SPARK PLUG HOLE 3. ONE CYLINDER CRACKED FROM EXHAUST PORT BETWEEN COOLING FINSAND BADLY CORRODED IN May 3, 1996 · Parten P68BSDR 96ZZZX3004Valve · failedINSTRUCTOR AND STUDENT WERE FLYING APPROXIMATELY 5 MILES FROM AIRPORT WHEN THE ENGINE FAILED. BY ADJUSTING MIXTURE, THE INSTRUCTOR WAS ABLE TO GET THE ENGINE RUNNING AGAIN (1,600 RPM) WHICH GOT THEM BACK TO THE AIRPORT. THE ENGINE WAS GIVEN A COMPRESSION CHEMay 3, 1996 · N6132H · Cessna 152SDR AU960623Exhaust Valve · seized(AUS) EXHAUST VALVE STICKING IN VALVE GUIDE DUE TO CARBON BUILDUPMay 1, 1996 · Cessna A150MSDR AU960890Bolt · failed(AUS) ENGINE CYLINDER ROCKER SHAFT RETAINING BOLTS FAILEDApr 28, 1996 · Cessna 404CESSNASDR 96ZZZX2995Retainer · fracturedON REMOVAL OF NR 6 CYLINDER DUE TO METAL FOUND IN OIL FILTER, FOUND PIECES IN ROCKER AREA. THIS WAS VERIFIED AS CONTAMINANTS THROUGH T.C.M. NO SERVICE INFO ISSUED TO DATE ON AN ONGOING PROBLEM OF THIS PART.Apr 26, 1996 · N6908P · Piper PA46310PSDR 96ZZZX2580Cylinder · bolts failedENGINE WAS SHUT DOWN IN-FLIGHT BY PILOT. FOUND ROCKER SHAFT BOLTS BROKEN, AND BENT PUSH ROD. VALVES, GUIDES AND PISTON WERE INSPECTED. ALL PARTS FOUND IN GOOD CONDITION. REINSTALLED CYLINDER AND GROUND RUN. ALL FOUND GOOD.Apr 26, 1996 · N421CW · Cessna 421CSDR AU960584Piston · damaged(AUS) NO2 CYLINDER PISTON SEVERELY ERODED AND HOLED IN THE AREA OF THE OIL RING GROOVE - METAL CONTAMINATION OF OIL SYSTEM - NO4CRANKSHAFT BEARING ALSO TURNEDApr 25, 1996 · Cessna U206GSDR 96ZZZX2505Cylinder · crackedTHE CONTINENTAL CYLINDER CRACKED WITH ONLY 1,216.4 HOURS ON IT. THE CRACK ORIGINATED AT THE SPARK PLUG BOSS AND WAS TRAVELLING TO THE FUEL INJECTION NOZZLE. THE COMPRESSION WAS STILL IN THE UPPER 60'S. SUBMITTER STATED THEY HAVE BEEN EXPERIENCING ALOT OF THApr 25, 1996 · N3695V · Beech 58SDR 96ZZZX3342Helicoil · came looseSPARK PLUG UPPER HELICOIL CAME LOOSE WITH SPARK PLUG. REMOVED CYLINDER ASSEMBLY AND REPLACED WITH OVERHAULED CYLINDER ASSY.Apr 24, 1996 · N4170R · Piper PA32300SDR AU960677Exhaust Valve · failed(AUS) NO1 CYLINDER EXHAUST VALVE HAD APPROXIMATELY 33% OF THE VALVE HEAD MISSINGApr 18, 1996SDR 96ZZZX4142Cylinder · crackedHOBBS - 3,213.6 HOURS. OIL APPEARED AROUND NR 1 CYLINDER PUSH ROD TUBES. SEALS REPLACED, GROUND CHECK OPS GOOD. AFTER FLIGHT, OIL APPEARED AGAIN. REMOVED NR 1 CYLINDER, FOUND CYLINDER SLEEVE CRACKED APPROXIMATELY THREE-FOURTHS OF CIRCUMFERENCE. LOG REVEALApr 18, 1996 · N17PS · Piper PA31PSDR AU960503Exhaust Valve · leaking(AUS) ENGINE COMPRESSION LEAKAGE FROM EXHAUST VALVES ON ALL 6 CYLINDERS- FOUND DURING COMPRESSION CHECK IAW AD/ENG/4 AMDT 5 - ENGINECALENDER TIME SINCE OVERHAUL WAS 19 YEARSApr 16, 1996 · Cessna 310JSDR CA960502049Piston Pin · fractured(CAN) CLIMBING THROUGH 5,200 FEET, REAR ENGINE RPM STARTED FLUCTUATING 200-300 RPM. OIL PRESSURE DROPPED TO ZERO, ENGINE FEATHERED. ENGINE TEARDOWN REVEALED BROKEN PISTON PIN. SUPERIOR AIR PART.Apr 15, 1996 · Cessna 337GSDR 96ZZZX2371Cylinder · failedNR 3 CYLINDER BARREL BROKEN. BARREL FAILED 75 PERCENT OF RADIUS ABOUT 2 INCHES DOWN FROM TOP OF CYLINDER BARREL.Apr 15, 1996 · N39609 · Piper PA28181SDR AU960523Piston · failed(AUS) ENGINE NO5 PISTON DISINTEGRATED - RH CRANKCASE HALF CRACKED IN AREA BELOW PUSH ROD TUBES TO FRONT ENGINE MOUNT - CRACK LENGTH 76.2MM (3IN) - ENGINE WAS A CONTINENTAL REMANUFACTURED UNITApr 12, 1996 · Cessna 182QSDR CA960429001Mounting Bolt · loose(CAN)PILOT FOUND #3 ROCKER BOX LOOSE AND TWO NUTS INSIDE LOWER COWLING. MAINTENANCE FOUND #3 ROCKER BOX MOUNTING BOLTS HAD BACKED OFF AND FALLEN INTO BOX COVER. ALSO, THE MOUNTING BOLTS ON ALL THREE REMAINING ROCKER BOXES HAD LOST THEIR TORQUE LEADING TO BELIEApr 11, 1996 · Dhav DHC1B2SDR CA960422008Cylinder Head · cracked(CAN)FRONT ENGINE #5 CYLINDER CRACKED APPROXIMATELY 3 INCHES LONG ACROSS THE ROCKER ARM CAVITY AREA.Apr 11, 1996 · Cessna 337G
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