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 98ZZZX505Cylinder · separationCYLINDER REMOVED DUE TO HEAD SEPARATION FROM THE CLYINDER BARREL. SUBMITTER NOTES THE CYLINDER WAS RE-MANUFACTURED IN JANUARY, 1994 (HEAD STAMP 1-94 AND THE OEM NUMBER IS OF A LATER DESIGN THAN CLYINDER P/N DESCRIBED IN SB M86-7 AND AD 86-13-04R3 RELATING TO Jan 30, 1998 · N36989 · Cessna 414ASDR 98ZZZX504Cylinder · crackedFACTORY NEW CYLINDER WITH MANUFACTURE DATE OF 12-1997 WAS REMOVED FROM THE NR 2 POSITION DUE TO OIL LEAKS. DURING DISASSEMBLY OF THE EXHAUST VALVE AND VALVE SPRING ASSEMBLY, A CRACK WAS NOTED BEWEEN THE 1ST AND 2ND FIN. CLOSER INSPECTION REVEALED THE FINS WEJan 30, 1998SDR 98ZZZX503Valve · wornCYLINDERS REMOVED FROM THE ENGINE DUE TO INCREASED OIL CONSUMPTION REPORTS. UPON REMOVAL, AN EXCESSIVE AMOUNT OF ROCKER ARM TO VALVE CLEARANCE WAS NOTICED ON THE NR 1, NR 2, AND NR 6 CYLINDERS. CLOSER EXAMINATION REVEALED TIPS OF THE EXHAUST VALVES HAD EXTREJan 30, 1998 · N297DB · Cessna 421CSDR 99ZZZX637Lifter · damagedTHREE INTAKE LIFTERS WENT FLAT. NR 3 WOULD NOT PUMP UP CAUSING SERIOUS VIBRATION. THE OTHER TWO DID EVENTUALLY PUMP UP. REPLACED ALL LIFTERS. TIME ON ORIGINAL PART, 10 HOURS. LIFTERS WERE FROM SUPERIOR AIRPARTS, INC.Jan 29, 1998 · N1935V · Cessna 182HSDR CA980311006Exhaust Valve · stuck(CAN) IN CRUISE AT 2,400 RPM THE ENGINE ABRUPTLY LOST 200 RPM AND BEGAN TO RUN VERY ROUGH. AFTER LANDING THE FAULT COULD NOT BE DUPLICATED. SUSPECT EXHAUST VALVE(S) STICKING INTERMITTENTLY. LYCOMING SERVICE BULLETIN 388B CARRIED OUT. ALL EXHAUST VALVE GUIDES WJan 26, 1998 · Cessna 172PSDR 98ZZZX824Cylinder Assy · wornDURING ANNUAL COMPRESSION CHECK, FOUND CYLINDERS COMP LOW. INSPECTED CYLINDERS, FOUND INTAKE VALVES SEAT EXCESSIVELY WORN. FURTHER INSPECTION FOUND ALL CERMACHROME ON CYLINDERS WORN AWAY. ALL CYLINDERS REPLACED WITH FACTORY NEW CYLINDERS.Jan 26, 1998 · N97523 · Cessna 182QSDR AU980334Valve · worn(AUS) ENGINE EXHAUST VALVES P/N 643873 (3 OFF) AND VALVE GUIDE P/N 643767 (1 OFF) WORN BEYOND LIMITS. CAM FOLLOWERS (5 OFF) P/N 646277 (EXHAUST) AND P/N 628488 (INLET) CORRODED ON FACE. PART TC: 171.Jan 23, 1998 · Cessna 182PSDR 98ZZZX548Piston Ring · mismarkedENGINE COMPONENTS INC., PISTON RING FOR VARIOUS TSIO-520 ENGINE WITH CHROME CYLINDERS. TOP COMPRESSION PISTON RING P/N 252501F-CC HAS BEEN FOUND STAMPED WRONG ON AT LEAST A HALF DOZEN RINGS IN THE LAST 6 MONTHS. IF RING INSTALLED AS MARKED, WHICH IS DIFFICULJan 22, 1998SDR 98ZZZX640Piston Ring · mismarkedENGINE COMPONENTS INC., PISTON RING FOR TSIO-520 SERIES WITH CHROME CYLINDERS. RING P/N 252501F-CC, THE PART NUMBER IS STAMPED ON BOTTOM OF RING INSTEAD OF TOP OF RING. IF INSTALLED AS MARKED, IT WILL NOT FIT IN THE PISTON RING LAND - TOP RING LAND POSITION.Jan 21, 1998SDR AU980035Cylinder · failed(AUS) NO2 CYLINDER ROCKER SHAFT BOSS FAILED. CRACK HAD EXISTED FOR SOME TIME BEFORE FAILURE.Jan 19, 1998 · Cessna 182PSDR 98ZZZX357Spring Seat · brokenREMOVED ROCKER COVER TO INSPECT FOR AD APPLICABILITY AND FOUND PARTICLES OF SPRING SEAT LAYING IN BOTTOM OF ROCKER COVER. DISASSEMBLED EXHAUST VALVE SPRING. FOUND SEAT BROKEN AROUND INNER RADIUS. SUBMITTER STATED EXHAUST VALVE GUIDE APPEARED TO BE .0625 INCJan 16, 1998 · N6822U · Cessna 414ASDR BIER9801049Ring · brokenAT 50 HOUR INSP DURING OIL SUCTION SCREEN INSP, FOUND .125 INCH METAL PIECE, CLOSER INSP REVEALED THAT IT WAS AN OIL RING PART. REMOVED CYL, FOUND OIL CONTROL RING BROKEN AND PISTON LAND BROKEN WITH HOLE WORN IN PISTON. SUBMITTER STATES THIS SHOWS THE IMPORTJan 14, 1998 · N3521S · Piper PA31350SDR 98ZZZX441Cylinder Assy · wornENGINE: 137 HOURS SOH (3-20-96). MODIFIED PER STC SE4985NM. NEW TCM CYLINDER ASSYS INSTALLED AT OVERHAUL AND MODIFICATION. COMP TEST: NR 1 - 55/80. NR 2 - 25/80. NR 3 - 75/80. NR 4 - 70/80. NR 5 - 75/80. NR 6 - 72/80. REMOVED ALL SIX CYLINDERS. ALLJan 14, 1998 · N1835M · Cessna 182PSDR 99ZZZX375Shaft · wrong partFOUND ENGINE OVERHAULED WITH INCORRECT ROCKER SHAFTS INSTALLED ON ALL CYLINDERS. NOTICED SHAFTS WERE DAMAGING ROCKER COVERS. UPON FURTHER INSPECTION, DETERMINED THE ROCKER SHAFTS WERE NOT THE CORRECT PART NUMBER, WERE TOO LONG, AND DID NOT CONTAIN THE PLASTIJan 8, 1998 · N9988B · Cessna 172RGSDR 98ZZZX691Rocker Adj Nut · looseAIRCRAFT REPORTED SUDDEN LOSS OF POWER ON TAKEOFF. UPON INSPECTION, FOUND ALL EXHAUST ROCKER VALVE ADJUSTING NUTS HAD INSUFFICIENT TORQUE. NR 3 CYLINDER ADJUSTMENT HAD BACKED OFF COMPLETELY. ENGINE HAS 90.9 HOURS SINCE OVERHAUL.Jan 7, 1998 · N49100 · Cessna 152SDR 98ZZZX196Cylinder · crackedENGINE STARTED RUNNING ROUGH. FOUND NR 7 CYLINDER EXHAUST PORT CRACKED ON CYLINDER HEAD.Jan 7, 1998 · N932H · Doug DC3CSDR 98ZZZX348Cylinder · crackedPILOT EXPERIENCED ROUGH ENGINE OPERATION AND RETURNED TO AIRPORT WITH UNEVENTFUL LANDING. INSPECTION BY MAINTENANCE PERSONNEL DISCOVERED NR 4 CYLINDER HAD ZERO COMPRESSION. CYLINDER WAS REMOVED AND FORWARDED TO ENGINE OVERHAUL SHOP WHERE FURTHER INSPECTION RJan 6, 1998 · N31754 · Piper PA28181SDR AU971628Cylinder · cracked(AUS) NO1 CYLINDER HEAD CRACKED.Dec 30, 1997 · Cessna 210LSDR AU971569Pushrod · loose(AUS) PILOT REPORTED REDUCTION IN RPM AND ROUGH RUNNING IN FLIGHT.INVESTIGATION FOUND THE NO2 CYLINDER EXHAUST PUSHROD END FITTINGS WERE LOOSE, WITH ONE END OF THE PUSHROD SPLAYED AND CRACKED.Dec 21, 1997 · Cessna 152SDR 98ZZZX4454Valve Guide · wornDURING A ROUTINE COMPRESSION CHECK, LEAKAGE WAS FOUND PAST THE EXHAUST VALVE ON THE NR 3 CYLINDER. THE REMOVED CYLINDER, EXHAUST VALVE AND GUIDE WERE FOUND WORN OUT. SUBMITTER SUGGESTED POSSIBLE CAUSE AS DEFECTIVE PARTS AND/OR ASSEMBLY PROCESS FROM THE FACTODec 15, 1997 · N952CC · Cessna 182PSDR 98ZZZX135Piston Pin · brokenINSPECTION FOUND PISTON PIN BROKEN AFFECTED BY AD 97-15-11.Dec 15, 1997SDR 98ZZZX1127Cylinder · failedFOLLOWING 45 MINUTES OF FLIGHT, ENGINE BECAME ROUGH. CARBURETOR HEAT APPLIED, BUT ROUGHNESS THE SAME. APPLIED FULL POWER AND RETURNED AND ON SHORT FINAL, TOWER REPORTED HEAVY SMOKE. INSPECTION FOUND ENGINE HAD ONLY 3 QUARTS OF OIL LEFT. NR 1 CYLINDER PISTODec 13, 1997 · N99295 · Cessna 172PSDR 98ZZZX148Cylinder · failedDURING A FLIGHT JUST AFTER TAKEOFF, PILOT REPORTED THE ENGINE PERIODICALLY LOST POWER AND VIBRATED. UPON LANDING, PILOT ALSO NOTICED A CONSIDERABLE AMOUNT OF OIL ON THE NACELLE. UPON INVESTIGATION, DISCOVERED THE NR 6 CYLINDER PUSH ROD WAS BENT AND PUSH ROD Dec 12, 1997 · N577W · Beech 58SDR 98ZZZX6Valve · wornCYLINDER NR 3 REMOVED DUE TO EXCESSIVE EXHAUST VALVE LEAKAGE DURING A COMPRESSION TEST. EXHAUST VALVE STEM WAS FOUND WORN .023 INCH AT TIP OF STEM TO ABOUT THE CENTER OF STEM. GUIDE WAS NOT WORN (NITRALOY). NR 2 CYLINDER WAS REMOVED FOR ANOTHER REASON AND TDec 10, 1997 · N3046K · Beech A36SDR 97ZZZX5174Valve · failedPILOT REPORTED THAT IN CRUISE FLIGHT, THE ENGINE BEGAN RUNNING ROUGH. IT WAS FOUND THE NR 1 CYLINDER HAD ZERO COMPRESSION. WHEN THE EXHAUST VALVE WAS REMOVED FROM THE ENGINE, DISCOVERED THE VALVE HAD A MISSING CHUNK. SUSPECT CAUSE - CARBON BETWEEN VALVE ANDDec 5, 1997 · N75703 · Cessna 207ASDR 98ZZZX52Roller · spalledVALVE TAPPET ROLLER WAS FOUND TO BE SPALLING AT THE TIME OF OTHER REPAIR TO THE ENGINE. METAL IN THE OIL SCREEN OR FILTERS, AND A CHIP DETECTOR LIGHT WOULD BE EARLY WARNING SIGNS OF A PROBLEM.Dec 4, 1997SDR 98ZZZX227Valves · pittedINSPECTION OF 6 NEW VALVES FOUND TWO OF THE VALVE STEMS WERE GENERALLY IN POOR CONDITION. FURTHER INSPECTION FOUND DEEP PITS AND SCRATCHES THAT APPEARED TO BE INCLUSIONS OR OTHER IMPURITIES.Dec 3, 1997 · N3527USDR 97ZZZX5203Cylinder · crackedEN ROUTE AT CRUISE POWER, LT ENGINE STARTED RUNNING ROUGH. FOUND NR 11 CYLINDER CRACKED ACROSS EXHAUST ROCKER HOUSING CAUSING EXHAUST VALVE NOT TO OPEN.Dec 2, 1997 · N9923S · Doug DC3CSDR CA971210003Valve · cracked(CAN) NR 2 ENGINE WAS REPORTED ROUGH RUNNING IN-FLIGHT. POST-FLIGHT INSPECTION FOUND THE EXHAUST VALVE OF NR 3 CYLINDER WAS CRACKED. THE NR 3 CYLINDER AND PISTON WERE REPLACED AND THE AIRCRAFT RETURNED TO SERVICE.Nov 27, 1997 · Doug DC3CS1C3GSDR AU971518Valve · sticking(AUS) NO4 CYLINDER EXHAUST VALVE STUCK OPEN. LOSS OF POWER AND ROUGH RUNNING RESULTED IN A FORCED LANDING IN THE BUSH.Nov 22, 1997 · Cessna 150GSDR 97ZZZX5162Valve Seat · failedNEW TCM CYLINDER ASSYS INSTALLED AT ENGINE OVERHAUL. DATE STAMPED ON ROCKER BOSS: 7-97. AFTER BREAK-IN FLIGHT AND TEST FLIGHTS, NR 2 CYL ON LT ENGINE WAS NOTED TO HAVE LOW COMPRESSION: 18/80. LEAKAGE DETERMINED TO BE PAST INTAKE VALVE. REMOVAL AND DISASSNov 21, 1997 · N6798V · Cessna 421CSDR CA980302002Cylinder · separated(CAN) THE TOP OF THE CYLINDER CONTAINING THE VALVES AND THE ROCKER ARMS SEPARATED FROM THE CYLINDER.Nov 20, 1997 · Piper PA34200TSDR 97ZZZX4964Piston Ring · failedEXCESSIVE OIL OUT OF ENGINE BREATHER PROMPTED ENGINE COMPRESSION CHECK WHICH REVEALED LOW COMPRESSION ON NR 1 CYLINDER. REMOVAL OF CYLINDER REVEALED TOP COMPRESSION RING SHATTERED INTO APPROX .25 INCH SEGMENTS AND SECOND COMPRESSION RING BROKEN IN SEVERAL PLANov 20, 1997 · N9773B · Cessna 172RGSDR 97ZZZX5098Pin Plug · brokenON REMOVAL OF NR 2 CYLINDER FOR LOW COMPRESSION, THE ONE-PIECE FORGED ALUMINUM PLUG IN THE CENTER OF THE WRIST PIN WAS FOUND BROKEN IN TWO, TWO INCHES FROM THE END.Nov 19, 1997 · N1528K · Beech A36SDR AU971467Valve Seat · separated(AUS) NO4 CYLINDER EXHAUST VALVE SEAT SEPARATED FROM CYLINDER. NO2 CYLINDER EXHAUST VALVE AND VALVE GUIDE UNSERVICEABLE. NO2 CYLINDER HEAD EXTENSIVELY CRACKED.Nov 18, 1997 · Bell 47J2ASDR CA971219030Cylinder · failed(CAN) ENGINE PROBLEMS IN-FLIGHT. THE AIRCRAFT DIVERTED. POST-FLIGHT INSPECITON FOUND THE NR 2 CYLINDER HAD FAILED AND CAUSED DAMAGE TO 1 AND 2 CYLINDERS, CASING AND CRANKSHAFT. ENGINE REPAIRED AND AIRCRAFT RETURNED TO SERVICE.Nov 17, 1997 · Cessna A185FSDR 98ZZZX520Piston Pin · brokenENGINE DISASSEMBLED FOR OVERHAUL. UPON NR 3 CYLINDER REMOVAL, PISTON PIN PN SA630046 FOUND BROKEN. NO OTHER DAMAGE NOTED.Nov 14, 1997 · N191WE · Beech E55SDR 97ZZZX4959Piston · crackedSIX ENGINE PISTONS FOUND CRACKED IN PISTON PIN BOSS. CRACKS WERE ALL IN SAME AREA, UPPER PIN BOSS RUNNING PARALLEL TO PISTON PIN. ONE PISTON HAD LOST ONE-FOURTH OF THE CASTING AROUND PIN. THIS CONDITION DID NOT CAUSE ANY OPERATIONAL PROBLEMS. JUDGING FROM Nov 14, 1997 · N3235S · Cessna 182GSDR 98ZZZX647Cylinder · crackedAT CRUISE, LEFT ENGINE BACKFIRED, LOSS OF 30 TPSI, THEN RETURNED TO NORMAL. REURNED TO AIRPORT UNEVENTFULLY. FOUND NR 11 CYLINDER CRACKED AROUND EXHAUST VALVE. REPLACED CYLINDER AND AIRCRAFT RETURNED TO SERVICE.Nov 11, 1997 · N87949 · Cvac 24017SDR 97ZZZX4879Piston · failedINSPECTION FOUND HALF OF PISTON SKIRT BROKEN AWAY AND MISSING FROM BOTTOM RING GROOVE TO JUST BEFORE EACH PISTON PIN BOSS. OWNER HAD REPORTED AN INCREASE IN OIL COMSUMPTION. VISUAL INSPECTION OF ENGINE WAS OK. CYLINDER COMP ALL CHECKED 70 OVER 80 OR BETTER.Nov 8, 1997 · N64874 · Cessna 152SDR AU971507Cylinder · incorrect assy(AUS) RH ENGINE CONTAINED THREE CYLINDERS WITH INCORRECT BARREL/PISTON RING COMBINATION. LH ENGINE HAD ONE CYLINDER WITH INCORRECT RINGS. THE AFFECTED CYLINDERS WERE CHROMED CYLINDERS (CERMICROME) BUT DURING THE PREVIOUS ASSEMBLY WERE MISTAKEN FOR NITRIDED CYLNov 7, 1997 · Gulstm 500SSDR CA971114001Cylinder · failed(CAN) ON APPROACH, THE CREW NOTICED A BMEP FLUCTUATION AND A "COUGHING" NOISE FROM NR 2 ENGINE. AS THE AIRCRAFT TOUCHED DOWN THE BMEP FLUCTUATED A SECOND TIME. ON A POST FLIGHT RUN-UP, THE REFERENCE RPM WAS LOW. FURTHER INSPECTION FOUND THE NR 2 CYLINDER EXNov 5, 1997 · Doug DC6ASDR 98ZZZX872Shroud Spring · failedTHE PUSHROD SHROUD TUBE SPRING RETAINER LOCATED UNDER THE VALVE COVER BROKE, AFTER ABOUT 8 HOURS OF SERVICE, ALLOWING THE SHROUD TUBE TO MOVE AND CREATE EXCESSIVE OIL LEAKAGE.Nov 4, 1997SDR 97ZZZX4796Cylinder · crackedTHE PILOT REPORTED A ROUGH ENGINE AND MADE A PRECAUTIONARY LANDING. A COMPRESSION GAUGE REVEALED THE NR 2 CYLINDER LEAKING BETWEEN THE HEAD AND BARREL (6 INCHES FROM THE MOUNTING FLANGE). THIS IS BETWEEN THE COOLING FINS AT THE BASE OF THE EXHAUST PORT. THENov 4, 1997 · N162ER · Piper PA28161SDR AU971394Valve · leaking(AUS) NO2 CYLINDER EXHAUST VALVE LEAKING.Nov 3, 1997 · Dhav DHC3SDR 98ZZZX2684Cylinder · failedEXHAUST VALVE FAILURE IN NR 1 CYLINDER RESULTED IN THE INGESTING OF THE VALVE INTO THE CYLINDER BORE. THIS CAUSED EXTENSIVE DAMAGE TO THE COMBUSTION CHAMBER AND PISTON. METAL WAS THEN PASSED THROUGH ENTIRE ENGINE OIL SYSTEM. DAMAGED PARTS INCLUDE ALL BEARINNov 1, 1997 · N611DF · Piper PA31350SDR 98ZZZX2118Piston Pin · failedPISTON PIN BROKE IN-FLIGHT CAUSING MASSIVE DAMAGE INTERNALLY IN ENGINE. THE CRACKSHAFT AND ONE CYLINDER WERE THE ONLY ITEMS SALVAGEABLE. PILOT NOTICED ENGINE ROUGNESS AND LOSS OF OIL PRESSURE. AIRPLANE LANDED WITHOUT DAMAGE TO AIRCRAFT OR PILOT. ENGINE QUINov 1, 1997 · N1144P · Mooney M20JSDR 97ZZZX4764Spring · brokenENGINE RAN ROUGH. INSPECTION FOUND NR 2 EXHAUST OUTER VALVE SPRING BROKEN.Oct 29, 1997 · N9469S · Beech 95C55SDR 97ZZZX4669Valve · wornINSPECTION FOUND THE NITRALOY GUIDES WORE THE EX VALVE STEMS LEAVING STEPS IN THE STEM AT THE ENDS OF TRAVEL IN THE GUIDE. ONE VALVE HAD .070 INCH WEAR. SUBMITTER STATED CONTINENTAL SHOULD ISSUE A BULLETIN OR SERVICE LETTER ALERTING MECHANICS OF THIS PROBLEMOct 23, 1997 · N97090 · Cessna 182QSDR 98ZZZX4462Valve Guide · wornDURING A ROUTINE COMPRESSION CHECK, LEAKAGE WAS FOUND PAST THE INTAKE VALVE ON THE NR 6 CYLINDER. THE REMOVED CYLINDER, INTAKE VALVE AND GUIDE WERE FOUND WORN OUT. THE VALVE LASH WAS ALSO FOUND TO BE EXCESSIVE ON THE NR'S 2, 4, AND 6 CYLINDERS. THE PUSH RODOct 21, 1997 · N961CC · Cessna 210N
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