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 99ZZZX339Cylinder · wornDURING A ROUTINE 50 OIL CHANGE/COMPRESSION CHECK, THE NR 3 CYLINDER WAS FOUND TO HAVE LEAKAGE PAST THE EXHAUST AND PISTON RINGS. THE REMOVED CYLINDER WAS FOUND TO HAVE A WORN OUT EXHAUST VALVE, EXHAUST VALVE GUIDE, AND CYLINDER BARREL (NO CHOKE). THE CYLINDESDR AU981685Cylinder · cracked(AUS) DURING FLIGHT, THE ENGINE COMMENCED VERY ROUGH RUNNING. GROUND INVESTIGATION FOUND NR 1 CYLINDER HAD CRACKED THROUGH 360 DEGREES FROM THE ATTACHMENT FLANGE TO THE FIRST FIN. THE CYLINDER REMAINED ATTACHED AS ONE END CRACK WAS APPROXIMATELY 19 MM (0.75 ISDR 99ZZZX25Cylinder · crackedCRACK ACROSS EXHAUST PORT.SDR 99ZZZX137Valve · failedEXHAUST VALVE PART FAILED INSIDE CYLINDER CAUSING SUBSEQUENT ENGINE FAILURE AND EMERGENCY LANDING. VALVE FACE SEEMED TO SEPARATE FROM STEM IN SEVERAL PIECES. SUBMITTER STATED THIS IS THE SECOND FAILURE OF THIS TYPE IN 931 HOURS.SDR 99ZZZX123Cylinder · crackedCOMRPESSION TEST REVEALED NR 1 CYLINDER 30/80, NR 5 CYLINDER 52/80, AND NR 6 CYLINDER 42/80. UPON APPLICATION OF LEAK DETECTOR LIQUID, CRACKS WERE FOUND IN ALL THREE CYLINDER HEADS.SDR 99ZZZX122Cylinder · crackedCOMPRESSION TEST REVEALED 71/80 FOR NR 1 CYLINDER AND 25/80 FOR NR 2 CYLINDER. UPON APPLICATION OF LEAK DETECTOR LIQUID, A CRACK WAS FOUND IN NR 1 CYLINDER ADJACENT TO INTAKE PORT BETWEEN 16TH AND 17TH FIN. CRACK EXTENDS FROM EXHAUST VALVE TO SPARK PLUG HOLESDR 99ZZZX121Cylinder · crackedCOMPRESSION TEST REVEALED 71/80 FOR NR 1 CYLINDER AND 25/80 FOR NR 2 CYLINDER. UPON APPLICATION OF LEAK DETECTOR LIQUID, A CRACK WAS FOUND IN NR 1 CYLINDER ADJACENT TO INTAKE PORT BETWEEN 16TH AND 17TH FIN. CRACK EXTENDS FROM EXHAUST VALVE TO SPARK PLUG HOLESDR 99ZZZX120Cylinder · crackedCOMPRESSION TEST REVEALED 64/80 FOR NR 6 CYLINDER. USED LEAK DETECTOR LIQUID TO DETECT CRACK ADJACENT TO EXHAUST PORT BETWEEN 18TH AND 19TH FIN.SDR 99ZZZX117Cylinder · crackedCOMPRESSION TEST REVEALED 58/80 FOR NR 2 CYLINDER. USED LEAK DETECTOR LIQUID TO DETECT CRACK ADJACENT TO EXHAUST PORT BETWEEN 16TH AND 17TH FIN. CRACK EXTENDS FROM EXHAUST VALVE TO SPARK PLUG HOLE.SDR 98ZZZX4791Lifter · failedSPALLED LIFTER WAS FOUND AFTER NR 1 CYLINDER WAS REMOVED DUE TO LOW COMPRESSION. SUSPECT MANUFACTURING DEFECT OR OIL FILM FAILURE. ENGINE WAS USING AEROSHELL 15W-50.SDR 99ZZZX376Bolt · failedPILOT REPORTED RT ENGINE RUNS ROUGH. FOUND NO COMPRESSION NR 6 CYLINDER. FOUND METAL IN MAIN OIL SCREEN. FOUND NR 6 ROD BOLT BROKEN AND CONNECTING ROD BROKEN LOOSE FROM CRANKSHAFT. MAJOR DAMAGE TO CRANKCASE, CRANKSHAFT, ROD, AND CYLINDERS. SUBMITTER SUSPESDR 99ZZZX279Cylinder · crackedDURING FLIGHT, A VIBRATION WAS NOTED. THE PLANE LANDED. THE RIGHT ENGINE SHOWED ZERO COMPRESSION ON NR 4 CYLINDER. AFTER REMOVING CYLINDER, FOUND CRACK FROM EXHAUST TO SPARK PLUG.SDR AU981660Cylinder Head · cracked(AUS) DURING ENGINE INSPECTION, NRS 1 AND 2 CYLINDER HEADS WERE FOUND TO HAVE CRACKS WHICH STARTED AT THE TOP SPARK PLUG HOLE RUNNING BEHIND THE FUEL INJECTOR DOWNWARDS BETWEEN FIN NRS 17 AND 18 (COUNTED FROM THE BARREL JOINT). THE VERTICAL CRACK IN CYLINDER SDR 98ZZZX4662Valve · incompatibleEXHAUST VALVE STICKING AND MATERIAL TRANSFER DUE TO MATERIAL INCOMPATIBILITY. EXHAUST VALVE (P/N SA643873), STEM IS CHROME PLATED AND VALVE GUIDE (P/N SA631496), IS ALUMINUM BRONZE AND THE 2 MATERIALS ARE NOT COMPATIBLE. NI-RESIST VALVE GUIDE (P/N 643767) SHSDR 98ZZZX4661Guide · incompatibleEXHAUST VALVE STICKING AND MATERIAL TRANSFER DUE TO MATERIAL INCOMPATIBILITY. EXHAUST VALVE (P/N SA643873), STEM IS CHROME PLATED AND VALVE GUIDE (P/N SA631496), IS ALUMINUM BRONZE AND THE 2 MATERIALS ARE NOT COMPATIBLE. NI-RESIST VALVE GUIDE (P/N 643767) SHSDR 99ZZZX1557Valve · damagedEXHAUST VALVE STUCK IN GUIDE CAUSING PISTON STRIKE AND BENT PUSH ROD. AIRCRAFT MADE AN EMERGENCY ON AIRPORT LANDING. NO DAMAGE TO AIRCRAFT.SDR CA981207022Camshaft · worn(CAN) PRE-INSPECTION RUN-UP, FOUND THE ENGINE RUNNING ROUGH AT IDLE. COMPRESSION CHECK FOUND NR 1 AND NR 2 WITH LOW COMPRESSION. THE CYLINDERS WERE REMOVED FOR INSPECTION AND THE CAMSHAFT LOBES WERE FOUND WORN. THE INTAKE LIFTER ON NR 2 CYLINDER WAS ALSO FOUSDR 99ZZZX974Bearing Insert · worn outENGINE LOST OIL PRESSURE IN-FLIGHT. ENGINE TEAR DOWN FOUND NR 4 ROD INSERT WAS COMPLETELY BURNED OUT. INSERT COULD HAVE SPUN IN ROD CLOSING OFF OIL SUPPLY. THIS CAUSED THE ROD BOLT TO BREAK. THE ROD CAP WAS DRIVEN THROUGH THE BOTTOM OF THE CASE INTO OIL SUSDR 98ZZZX4792Crankshaft · out of toleranceWHILE INSPECTING CRANKSHAFT AND PERFORMING TRIAL ASSEMBLY OF GEAR PER TEXTRON LYC BULLETIN 475B AND FAA AD 91-14-22, NOTED THE GEAR WOULD NOT START INTO THE CRANKSHAFT COUNTERBORE DUE TO A DISCREPANCY BETWEEN RADIAL POSITION OF DOWEL IN CRANKSHAFT AND DOWEL HOSDR AU981527Pedestal · broken(AUS) NR 1 CYLINDER ROCKER PEDESTAL BROKEN.SDR AU981596Pin · wrong part(AUS) CYLINDER KITS (4OFF) USED TO SERVICE THE ENGINE HAD THE INCORRECT LIGHTWEIGHT PISTON PINS FITTED INSTEAD OF THE CORRECT HEAVYWEIGHT PINS. THE INCORRECT PINS WERE MARKED LW13445 WHICH IS THE PART NUMBER FOR THE CORRECT HEAVYWEIGHT PIN.SDR 98ZZZX4564Spring · brokenWHILE TROUBLESHOOTING AN OIL LEAK, FOUND NR 3 CYLINDER PUSH ROD HOUSING RETAINER SPRING BROKEN.SDR 98ZZZX4501Cylinder · failedAFTER TAKEOFF ON CLIMB, LEFT ENGINE STARTED TO SHAKE. FOUND NR 14 CYLINDER WITH BROKEN EXHAUST VALVE.SDR 99ZZZX191Cylinder Head · brokenCONDITION OCCURRED DURING CRUISE CONFIGURATION. PILOT REPORTED LOSS OF MANIFOLD PRESSURE AND DIMINISHED PERFORMANCE ON RT ENGINE. PILOT NOTED OIL COMING FROM ENGINE COWLING AND SHUT ENGINE DOWN. AN INSPECTION REVEALED CYL NR 4 HAD A BROKEN HEAD. THE BREAK SDR 99ZZZX1122Valve Springs · failedUPON AIRCRAFT AND ENGINES ROUTINE OPS 1 AND 2 (100 HRS) INSPECTIONS, COMPRESSION ON NR 5 CYLINDER WAS 52/80 AND LEAKING BY THE STATIC SEAL (EXHAUST VALVE). CYLINDER WAS DISSASSEMBLED AND VISUALLY INSPECTED. FOUND BOTH INTAKE AND EXHAUST VALVE INNER VALVE SPRSDR AU981656Cylinder · leaking(AUS) DURING INSPECTION, NR 4 CYLINDER FOUND LEAKING AT HEAD/BARREL JOINT. PART TC: 108.SDR 99ZZZX700Set Screw · malfunctionedAIRCRAFT AT CRUISE SPEED AT APPROXIMATELY 3,000 FEET, VALVE ADJUSTING SCREW COMPLETELY BACKED OUT OF ROCKER ASSY. LOSS OF INTAKE VALVE FOR THAT CYLINDER ENSUED CAUSING LOSS OF POWER, AND EMERGENCY LANDING OF AIRCRAFT.SDR AU981414Plug · worn(AUS) NR 1 CYLINDER PISTON PIN PLUG WORN EXCESSIVELY. PART TC: 1,773.SDR AU981404Spring · broken(AUS) NR 2 CYLINDER INLET VALVE PUSH ROD TUBE COVER RETAINING SPRING BROKEN. PART TC: 1,711.SDR 98ZZZX4779Cylinder · crackedDURING 100-HOUR INSPECTION COMPRESSION CHECK, FOUND NR 3 CYLINDER CRACKED FROM THE EXHAUST VALVE GUIDE TO THE SPARK PLUG HOLE.SDR CA981027005Cylinder · cracked(CAN) DURING CRUISE, THE FRONT ENGINE HAD A CYLINDER FAILURE. THE CYLINDER WAS REPLACED AFTER LANDING.SDR 98ZZZX4446Cylinder Head · crackedDURING INSPECTION FOR AN OIL LEAK, FOUND THE ENGINE CYLINDER HEAD CRACKED BEHIND THE ROCKER COVER AREA AND EXTENDING BEHIND THE INTAKE VALVE SPRING. ONE DAY BEFORE FOUND, SIMILAR CRACK AND DIFFERENT AIRPLANE WITH SAME MODEL ENGINE. AFTER CLOSE INSPECTION, UNSDR 99ZZZX491Cylinder · crackedDURING INSPECTION FOR AN OIL LEAK, FOUND THE ENGINE CYLINDER HEAD CRACKED BEHIND THE ROCKER COVER AREA AND EXTENDING BEHIND THE INTAKE VALVE SPRAY. ONE DAY LATER, FOUND SIMILAR CRACK ON A DIFFERENT AIRPLANE WITH THE SAME MODEL ENGINE. AFTER CLOSE INSPECTION,SDR CA981109002Piston · cracked(CAN) CRACK IN NR 3 PISTON ALLOWED PRESSURE IN THE CRANKCASE TO EXIT AROUND THE CRANKCASE SEAL AND CAUSE SMOKE AND FUMES TO EXIT THE ENGINE COWL. THERE WAS NO VISIBLE SIGN OF DETONATION OR PRE-IGNITION BY AN BURNING OR CHARRING.SDR AU981415Plug · worn(AUS) PISTON PIN PLUG WORN. PART TC: 471.SDR 98ZZZX4476Piston Pin · brokenENGINE DISASSEMBLED PER AD 98-19-02. FOUND NR 4 PISTON PIN BROKEN INTO TWO PIECES. REBUSHED NR 4 CONNECTING ROD, INSTALLED NEW PISTON AND RINGS. REPLACED ALL PISTON PINS WITH NEW.SDR AU981479Pin · worn(AUS) NR 2 CYLINDER PISTON PIN END PLUG WORN AND DAMAGED. METAL CONTAMINATION OF ENGINE OIL SYSTEM. PART TC: 654.SDR AU981384Tappet · misinstalled(AUS) ENGINE TAPPETS FITTED IN THE INCORRECT LOCATIONS. SUBMITTER SUSPECTED ALSO UNAPPROVED PARTS. PART TC: 740.SDR 98ZZZX3855Line · crackedINJECTION LINE NR 1 CYLINDER CRACKED AND SEPARATED AT INJECTION SERVO. HOBBS TIME 1,596.2 HOURS.SDR AU981385Exhaust Valve · worn(AUS) RIGHT ENGINE CYLINDERS (FIVE NEW - ONE USED) HAD THE INLET AND EXHAUST VALVES WORN BEYOND LIMITS. ALL EXHAUST VALVE GUIDES UNSERVICEABLE. PART TC: 289.SDR AU981263Cylinder · leaking(AUS) NR 1 CYLINDER LEAKING AT HEAD TO BARREL JOINT. CYLINDER HAD BEEN RECENTLY OVERHAULED, BUT COULD HAVE BEEN MANUFACTURED AS LONG AGO AS 1940.SDR CA981028007Cylinder · separated(CAN) DURING CLIMB, THE PILOT HEARD A LOUD BANG. A QUICK TURN AROUND WAS EXECUTED AND THE AIRCRAFT RETURNED TO ITS POINT OF DEPARTURE. POST-FLIGHT INSPECTION REVEALED ONE OF THE CYLINDERS HAD SEPARATED. THE ENGINE WAS REPLACED.SDR 98ZZZX4323Cylinder · crackedDURING ANNUAL INSPECTION, FOUND ALL SIX CYLINDERS CRACKED BETWEEN TOP SPARK PLUG BOSS AND FUEL INJECTOR NOZZLE BOSS.SDR 98ZZZX4231Exhaust Valve · failedCYLINDER NR 4 EXHAUST VALVE STUCK OPEN ON TAKEOFF. AIRCRAFT RETURNED TO AIRPORT AND MADE A SAFE LANDING. UPON INSPECTION, THE CYLINDER'S NR 4 EXHAUST ROTATER CAP WAS FOUND IN THE BOTTOM OF THE ROCKER BOX. INSPECTED VALVE PER LYC SB 388B. CLEARANCE FOUND TOSDR 98ZZZX4056Spring · brokenDURING ROUTINE MAINTENANCE, METAL FOUND IN OIL FILTER. TRACED TO BROKEN INNER VALVE SPRING OF NR 5 CYLINDER. BROKEN ENDS HAD STARTED TO EAT INTO CYLINDER HEAD. SUBMITTER SUGGESTED CAUSE AS METALLURIGICAL FAILURE OF SPRING STEEL. VALVE SPRINGS ARE A MANDATORSDR AU981510Spring · broken(AUS) NR 1 CYLINDER INLET VALVE OUTER VALVE SPRING BROKEN.SDR CA981014014Cylinder · cracked(CAN) ON FIRST START, ENG MIS-STARTED AND BACKFIRED. REMOVAL OF ENG COWLINGS AND INSP SHOWED NO DEFECTS. ACFT CARRIED ON WITH MISSION. ON RETURN AFTER 3.5 HRS OF FLT, PILOT REPORTED AN ENG VIBRATION, BUT UNSURE OF WHICH ENG. RUN-UP DETERMINED IT WAS NR 2 SDR CA981006029Seat · broken(CAN) CYLINDER REMOVED DUE TO ROUGH RUNNING ENGINE. INSPECTION FOUND THE UPPER EXHAUST SEAT CRACKED AND BROKEN AND THE EXHAUST VALVE WAS DESTROYED. THE PART NUMBER FOUND ON THE EXHAUST SEAT WAS LW-10076, WHICH, ACCORDING TO SB NR 435 AND AD 80-14-07, SHOULD SDR CA981001006Spring · broken(CAN) WHILE CARRYING OUT SERVICE BULLETIN CSB98-1B, THE OUTER VALVE SPRINGS ON NR 2 CYLINDER INTAKE AND EXHAUST, AS WELL AS ON NR 1 CYLINDER INTAKE VALVE WERE FOUND BROKEN. THE SPRINGS WERE REPLACED AND THE AIRCRAFT WAS RETURNED TO SERVICE.SDR AU981340Valve Guide · failed(AUS) ENGINE CYLINDER EXHAUST VALVE GUIDES TIGHT CAUSING VALVES TO STICK. CYLINDERS ARE NEW ITEMS FITTED APPROXIMATELY 184 HOURS PREVIOUSLY. PART TC: 184.
Back to JASC 8530