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 CA960614006Valve · broken stem(CAN)#3 CYLINDER EXHAUST VALVE STEM BROKEN JUST BELOW THE HEAD.SDR AU960777Cylinder · separated(AUS) RH ENGINE NO5 CYLINDER HEAD SEPARATED FROM BARREL - SUSPECT PRE-EXISTING CRACKSDR 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 .SDR 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 SUGGESTSSDR AU960808Exhaust Valve · failed(AUS) LH ENGINE NO5 CYLINDER EXHAUST VALVE FAILED - SUSPECT CAUSED BY EXCESSIVE LEANING OF ENGINESDR 96ZZZX4808Cylinder · wornCOMPRESSION CHECK INDICATES ALL 4 CYLINDERS NOT SERVICEABLE DUE TO LOW COMPRESSION. TSO: 689 HOURS. TT: 4,544 HOURS.SDR 96ZZZX4807Cylinder · wornCOMPRESSION CHECK INDICATES ALL 4 CYLINDERS NOT SERVICEABLE DUE TO LOW COMPRESSION AT 110 HOURS TSO. TT: 4,950 HOURS.SDR CA960604003Cylinder · not firing(CAN)IN CRUISE AT 9.5K, ENGINE RAN ROUGH AND BACKFIRED, SHUTDOWN.SDR AU960725Cylinder · cracked(AUS) ENGINE CYLINDER CRACKED FROM SPARK PLUG HOLESDR AU960668Cylinder · cracked(AUS) NO2 CYLINDER CRACKED IN AREA OF EXHAUST PORT - CRACKING ALSO FOUND BETWEEN THE VALVE SEATSSDR 96ZZZX3199Piston · rings wornLOWER SPARK PLUG FOWLED WITH OIL. REMOVED CYLINDER ASSY AND FOUND UPPER FACE OF RINGS KNIFE EDGED. REMOVED AND REPLACED CYLINDER ASSY.SDR AU960673Cylinder · failed(AUS) ENGINE NO2 CYLINDER HAD NIL COMPRESSION - LOSS OF OIL QUANTITY AND PRESSURE - METAL CONTAMINATION OF OIL FILTERSDR 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 NSDR 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.SDR CA960606004Valve Guide · loose(CAN)ON 100 HOUR INSPECTION, LOW COMPRESSION IN CYLINDER. EXHAUST VALVE GUIDE LOOSE IN CYLINDER HEAD.SDR 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 INSDR 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 SDR 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)SDR 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.SDR 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 STATESDR 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 CSDR 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 BEINSDR 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)SDR AU960761Piston · burnt(AUS) NO4 ENGINE NO 10 CYLINDER PISTON BURNT - ENGINE OIL VENTING OVERBOARDSDR 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.SDR 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.SDR 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.SDR 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 OVERHAULSDR 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.SDR 96ZZZX3561Cylinder · crackedINSPECTION FOUND NR 1 CYLINDER CRACKED HORIZONTALLY THROUGH SPARK PLUG BUSHING ON FORWARD FACE.SDR 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 VISDR CA960522009Cylinder · cracked(CAN)IN THE CIRCUIT, PILOT REPORTED AN ENGINE VIBRATION. #2 CYLINDER ROCKER SHAFT BOSS CRACKED.SDR 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 MIXTURESSDR 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 SDR 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 CHESDR AU960623Exhaust Valve · seized(AUS) EXHAUST VALVE STICKING IN VALVE GUIDE DUE TO CARBON BUILDUPSDR AU960890Bolt · failed(AUS) ENGINE CYLINDER ROCKER SHAFT RETAINING BOLTS FAILEDSDR 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.SDR 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.SDR 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 TURNEDSDR 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 THSDR 96ZZZX3342Helicoil · came looseSPARK PLUG UPPER HELICOIL CAME LOOSE WITH SPARK PLUG. REMOVED CYLINDER ASSEMBLY AND REPLACED WITH OVERHAULED CYLINDER ASSY.SDR AU960677Exhaust Valve · failed(AUS) NO1 CYLINDER EXHAUST VALVE HAD APPROXIMATELY 33% OF THE VALVE HEAD MISSINGSDR 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 REVEALSDR 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 YEARSSDR 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.SDR 96ZZZX2371Cylinder · failedNR 3 CYLINDER BARREL BROKEN. BARREL FAILED 75 PERCENT OF RADIUS ABOUT 2 INCHES DOWN FROM TOP OF CYLINDER BARREL.SDR 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 UNITSDR 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 BELIESDR CA960422008Cylinder Head · cracked(CAN)FRONT ENGINE #5 CYLINDER CRACKED APPROXIMATELY 3 INCHES LONG ACROSS THE ROCKER ARM CAVITY AREA.
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