JASC 8530
Service difficulty reports · 4,341
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 2025FA0000508Exhaust Rocker · shearedDURING FLIGHT THE NR 4-CYLINDER EXHAUST ROCKER ARM HOLD DOWN STUDS BROKE CAUSING THE NR 4-CYLINDER EXHAUST VALVE TO NOT OPEN. THIS CAUSED EXTREME VIBRATION AND A SIGNIFICANT LOSS OF ENGINE POWER. AIRCRAFT WAS WITHIN GLIDING DISTANCE OF RUNWAY AND LANDED SAFELYSDR 2025FA0000415Cylinder Head · crackedAD2020-16-11 PREVIOUSLY COMPLIED WITH ON 11/12/24 AT 2158.7 FLIGHT TIME (536.5 SFRM) TO PREVENT CYLINDER CRACKS. SEVEN MONTHS AND 64.5 HOURS LATER, CYLINDER #5 CRACKED AND BROKE FREE WHILE AIRBORNE AT 12,000 FEET APPROXIMATELY 18.5 MILES WEST-NORTHWEST OF MGWSDR 2025FA0000400Valve Guide · cokedCREW REPORTED ROUGH RUNNING ENGINE/VIBRATION IN CRUISE FLIGHT LASTING 2-3 MINUTES ALONG WITH A # 2 CYLINDER EGT FLUCTUATION. TROUBLESHOT PROBLEM TO FIND # 2 CYLINDER EXHAUST VALVE STICKING.SDR 2025FA0000296Exhaust Valve · stuckEXTREME VIBRATION OF AIRCRAFT ENGINE AFTER START UP. TROUBLESHOT AND FOUND #4 CYLINDER EXHAUST VALVE STUCK OPENSDR 2025FA0000282Cylinder Head · crackedCRACKS / SEPARATION OF CYLINDER EVEN AFTER COMPLYING WITH AD 2020-16-11 OVER 5 YEARS AGO.SDR 2025FA0000279Rocker · wornFOUND BRONZE COLORED PARTICLES IN OIL FILTER. OPENED ENGINE FOR INSPECTION AND DETERMINED THE PARTICULATES WERE FROM THE ROCKER ARM BUSHINGS. INSPECTED ALL BUSHINGS, DETERMINED INBOARD 1/3 TO 1/2 OF THE ROCKER ARM BUSHING CIRCUMFERENCE WAS WORN AND DAMAGED. BUSDR N3XR20250414001Cylinder Head · out of toleranceDURING TAKEOFF OFF THE #1 (LT. ) ENGINE MADE A LOUD POPPING NOISE AND WAS ROUGH. AFTER CONSULTATION WITH MANUFACTURER, THE CYLINDER HEAD ASSEMBLY WAS CHANGED. THE CONDITION DID NOT OCCUR ON POST MAINTENANCE FLIGHT ANDSUBSEQUENT FLIGHTS.SDR 2025FA0000149Rocker Cover · crackedROCKER BOX COVER ON NUMBER 5 CYLINDER HEAD LEAKING OIL THROUGH HAIRLINE CRACK AT THE STAMPING MARK. THE LINE THAT UNDERLINES THE STAMPED "LYCOMING" LETTERS HAS A CRACK ALLOWING SLOW SEEPAGE OF ENGINE OIL AT ALL TIMES.SDR 2025FA0000133Cylinder Head · crackedENGINE CYLINDER #2 CRACKED ACROSS COOLING FINS. CREW NOTICED LOSS OF POWER/SHUDDER. BURNING SMELL COMING THROUGH CABIN AIR VENTS.SDR 2025FA0000110Piston · failedENGINE SEIZED UP ON RUN UP. PISTON IN # 3 CYLINDER BROKE INTO TWO PARTS AT THE PISTON PIN BORE. CYLINDER ASSEMBLY P/N 658815A1 PISTON P/N 654726.SDR 2025FA0000112Cylinder · crackedCYLINDER #3 WAS LEAKING OIL. UPON FURTHER INVESTIGATION, IT WAS DISCOVERED THAT THE CYLINDER WAS CRACKED. THE CRACK WAS DISCOVERED IN THE CROSSFLOW AREA THAT WAS BLENDED AS PER AD 2020-16-11. AD 2020-16-11 WAS ACCOMPLISHED ON THIS ENGINE ON 9/25/2020.SDR 2025FA0000010Cylinder Head · burnedENGINE COMPRESSION CHECK CYLINDER #5 WAS 10/80 PSI. REMOVED CYLINDER, PISTON WAS BURNED BADLY AROUND THE OUTSIDE EDGES. TOP SPARK PLUG PORCELAIN WAS BROKEN AND DAMAGED.SDR 2025FA0000008Piston Ring · missingHAESL REPORTED THAT 1 EA. PISTON RING AND 2EA. SEAL RINGS WERE FOUND MISSING ON ESN 51327 (AMERICAN AIRLINES) UPON DISASSEMBLY ON 06 JAN 2025. ESN51327 WAS INDUCTED TO HAESL FOR SHOP VISIT (SHOP VISIT TYPE: MATURE REFURBISHMENT) ON 16 DEC 2024. THIS IS THE 4THSDR 2024FA0000961Cylinder · crackedI PREVIOUSLY REPORTED THIS CYLINDER FOR A LOOSE VALVE GUIDE (CONTROL # 2024FA0000818). UPON FURTHER INSPECTION, THIS CYLINDER IS ALSO CRACKED IN THE TARGET AREA OF AD20-16-11. CRACK CONFIRMED BY 10X MAGNIFIER AND FLORESCENT PENETRANT INSPECTION. THIS CYLINDERSDR 2024FA0000943Exhaust Valve · brokenTURNING DOWNWIND FROM CROSSWIND THERE WAS A SINKING FEELING TO THE PLANE IN WHICH I TOOK OVER CONTROLS IMMEDIATELY CHECKED TO SEE IF POWER WAS FULL. THE POWER HANDLE WAS FULL BUT IT FELT AS IF WE HAD A LOSS OF THRUST, THEN THE RPM’S BEGAN TO RAPIDLY DROP AND SSDR 2024FA0000942Cylinder · crackedTHIS REPORT PERTAINS TO AD 20-16-11. THE CURRENTLY INSTALLED #5 CYLINDER, PN: 658595 SN: AC18DA103 WAS AFFECTED BY AD 20-16-11. THE CORRECTIVE ACTION, RADIUS THE TARGET AREA TO RELIEVE STRESS AND PREVENT CRACKING, HAD PREVIOUSLY BEEN COMPLIED WITH. HOWEVER, SDR ENHA20241205001Cylinder · crackedDURING PREFLIGHT PILOT NOTICED THE ENGINE HAD AN OIL LEAK. MAINTENANCE INSPECTED AND DETERMINED THAT THE CRANKCASE NEAR NUMBER 6 CYLINDER WAS CRACKED NEAR THE FORWARD UPPER CYLINDER HOLD DOWN STUD.SDR 2024FA0000818Valve Guide · loosePILOT REPORTED AN UNUSUAL VIBRATION DEVELOPING IN FLIGHT BETWEEN 2200-2400 RPM. I FOUND THE #5 CYLINDER EXHAUST VALVE GUIDE, PN: 636242P005, WAS LOOSE, FLOATING IN THE CYLINDER. LOGBOOKS INDICATE THE #5 CYLINDER WAS AN OVERHAULED CYLINDER. THE CYLINDER WAS OSDR N3XR202411040001Piston · crackedDURING CLIMB-OUT, THE CREW REDUCED POWER TO 92% AND NOTICED THAT "L ECU A" AND "L ECU B" FAIL WARNINGS APPEARED, ACCOMPANIED BY A LOSS OF POWER. THE CREW CONTINUED THE CLIMB, AND BOTH "L ECU A" AND "L ECU B" FAIL WARNINGS CLEARED, ALTHOUGH OIL WAS OBSERVED LEASDR 2024FA0000821Cylinder · seized#4 TOP SPARK PLUG (TEMPEST) WAS SEIZED IN THE CYLINDER HEAD. SPARK PLUG APPEARS TO BE TORQUING AGAINST THE BASE OF THE HELICOIL RATHER THAN AT THE SPARK PLUG FLANGE AND THE GASKET. THE SPARK PLUG COULD NOT BE REMOVED WITH HEAT OR PENETRATING OIL, EVEN WITH MAXSDR 2024FA0000775Cylinder Head · crackedPILOT REPORTED THAT THEY TOOK OFF AT KESN AND SHORTLY HAD A SIGNIFICATE LOSE OF POWER AND FELT ROUGH. TURNED AROUND AND LANDED BACK AT KESN. AFTER REMOVING COWLING FOUND THAT #3 CYLINDER LOWER EXHAUST SIDE OF CYLINDER HEAD WAS CRACKED HAD BROKEN FREE. THE ONLSDR 2025FA0000421Cylinder Head · crackedWHILE APPROACHING INTENDED DESTINATION OF SSI, LEVEL AT 5,000 FEET, THE PLANE STARTED VIBRATING/SHAKING WITH A LOSS OF PERCENT POWER AND MANIFOLD PRESSURE, AMONG OTHER INDICATIONS. CYLINDER #6 EGT WENT OFFLINE, INDICATING A PROBLEM WITH THAT CYLINDER. TURNEDSDR 2025FA0000352Cylinder Head · crackedFAILURE OF CYLINDER HEAD ALLOWING COOLANT TO ENTER THE CYLINDERS AND CRANKCASE. NO PRIOR WARNING FROM FADEC CONTROL AND WARNING SYSTEM.SDR 2024FA0000750Piston · crackedENGINE POWER & RPM LOSS IN FLIGHT. FUMES COMING THROUGH AIR VENT. EMERGENCY LANDING INTO KHFY. FOUND #1 PISTON CRACKED. TERMINATING ACTION FOR AD2024-05-01 WAS TAKEN ON 2/8/2024 AT 722.1 ETT. AD 2024-05-01"FUEL INJECTOR CHANGE" WAS COMPLIED WITH ON 3/10/202 ATSDR 2024FA0000740Intake Pipe · looseMY SHOP HAS SEEN TWO OF THESE ISSUES IN A VERY SHORT TIME ON TWO DIFFERENT AIRCRAFT. THE FIRST WAS THE LISTED AIRCRAFT (N2155J), THE SECOND IS ON N406CV. SAME ENGINES (TIO-540-AK1A) WITH APPROXIMATELY THE SAME TIME SINCE OVERHAUL (1200 HOURS) FROM TWO DIFFERENSDR 2024FA0000727Cylinder · damagedALL CYLINDERS WERE FOUND TIGHTLY INSTALLED TO THE ENGINE CASE AND REMOVED FOR EXAMINATION. CYLINDERS NUMBER 1, 2, AND 6 WERE REMOVED WITH MINOR RESISTANCE ONCE ATTACHING HARDWARE WAS REMOVED. CYLINDERS 3, 4, AND 5 WERE MET WITH RESISTANCE DURING THE REMOVAL PRSDR 2024FA0000630Stud · shearedAIRCRAFT ON RETURN FROM SORTIE EXPERIENCED ROUGH RUNNING ENGINE AND SEVER VIBRATION. PILOT ELECTED TO SHUT DOWN THE ENGINE AND LAND IN A FIELD NEAR THE PUEBLO COLORADO AIRPORT. MAINTENANCE RECOVERED THE AIRCRAFT AND BROUGHT BACK TO PUEBLO CO. CAE MAINTENANCE FSDR 2024FA0000665Cylinder · defectiveWHILE IN FLIGHT PILOT EXPERIENCED POWER AND RPM LOSS WITH SUBSTANTIAL VIBRATION, EMERGENCY LANDING ACCOMPLISHED. FOUND #1 CYLINDER EXHAUST VALVE STUCK OPEN AND #3 CYLINDER EXHAUST VALVE STICKING. #1 CYLINDER EXHAUST PUSHROD FOUND BENT.SDR 2024F00194Exhaust Valve · nonePILOT REPORTED: NORMAL: WEIGHT AND BALANCE CHECK, PREFLIGHT, FUELING (35 FRNT 35 CTR 05 REAR) PAX LOADING/BRIEFING, TAXI FOR SE DEPART, AND RUN UP. PREFLIGHT CHECKLIST: FUEL SELECTOR CTR TANK, FLAPS AND TRIM SET TO TAKEOFF, WATER RUDDERS RETRACTED, CARB HEAT SDR 2024FA0000838Cylinder Head · separatedWHILE IN NORMAL CRUISE FLIGHT, THE PILOT/OWNER REPORTED THE ENGINE BEGAN RUNNING ROUGH WITH ASSOCIATED LOSS OF POWER. EXECUTED AN UNSCHEDULED LANDING AT PWM AIRPORT AND WE TOOK IN SUBJECT AIRPLANE FOR REPAIRS AND RETURN TO SERVICE. INSPECTION REVEALED THE #2 CSDR 2024FA0000504Cylinder · crackedTHE EXHAUST ROCKER ARM AND CYLINDER CASTING SEPARATED FROM CYLINDER IN CRUISE FLIGHT. POWER WAS REDUCED AND AIRCRAFT LANDED AT AN ALTERNATE AIRPORT.SDR 2NVA202407090010Intake Valve · failedABOUT 30 MINUTES INTO A TOUR, PILOT HEARD A SOUND AND EXPERIENCED LOSS OF POWER AND HIGH MANIFOLD PRESSURE. INITIATED POWER ON LANDING ON AN ADJACENT OPEN FIELD. VISUAL INSPECTION REVEALED OIL LEAK NEAR CYLINDER # 6. UPON REMOVAL OF VALVE COVER A BROKEN OFF VASDR 2025FA0000380Screw · shearedPILOT WAS FLYING WHEN THE ENGINE STARTED SHAKING AND CYLINDER 1 CHT AND EGT WENT COLD. PILOT DECLARED AN EMERGENCY AND LANDED AT KRDG. UPON REMOVAL OF THE COWLING THE INSPECTOR NOTED THERE WAS A HOLE PUNCTURED IN THE CYLINDER #1 ROCKER COVER. IT APPEARS ONE SDR 2024FA0000501Cylinder · crackedDURING INSPECTION/TROUBLESHOOTING OF ENGINE FOR ROUGH OPERATION/BACKFIRING, FOUND EXHAUST ROCKER LOBE OF THE #9 CYLINDER CRACKED THRU EXHAUST PORT AND AROUND EXHAUST VALVE SEAT. TOTAL TIME OF CYLINDER IS UNKNOWN. ENGINE IS 1157 HOURS SINCE MAJOR OVERHAUL. CYLISDR 2024FA0000484Exhaust Valve · brokenDURING CLIMB OUT FROM RIGBY, ID, AIRCRAFT EXPERIENCED PARTIAL ENGINE POWER LOSS. POST INCIDENT INSPECTION REVEALED #3 CYLINDER EXHAUST VALVE WAS DAMAGED/MISSING.SDR 2024FA0000367Cylinder Head · crackedCYLINDERS 1, 3 AND 5 EXHIBIT CRACKS IDENTICAL TO SDR MSB09-1B, ALTHOUGH THEY ARE NOT INCLUDED IN THE SERVICE BULLETIN. CYLINDER PNS ARE UNREADABLE BUT SNS ARE AS FOLLOWS: • CYLINDER 1 - ACO6CA702, CYLINDER 2 - AC04HC272, CYLINDER 3 - AC05BB268, CYLINDER 4 - ACSDR AYKA20240403108Retainer · crackedROCKER ARM SHAFT RETAINER CONTINENTAL P/N # 631996. FOUND CRACKED RETAINERS DURING ANNUAL INSPECTION WHILE PERFORMING VISUAL INSPECTION. ORDER REPLACEMENTS. OLD PARTS ARE CAST AND NEW STYLE REPLACEMENT WITH SAME PART NUMBER LOOKS TO BE BILLET.SDR 2024FA0000277Retainer · crackedROCKER SHAFT RETAINERS CRACKED. X 8 4 ON LEFT ENGINE AND 4 ON RIGHT ENGINE.SDR 2024FA0000268Cylinder Head · separatedTHE PILOT REPORTED A LOSS OF MANIFOLD PRESSURE IN FLIGHT ALONG WITH A REDUCTION IN POWER AND CRUISE SPEED. THE AIRCRAFT SAT UNTIL THE 28TH OF MARCH AWAITING MAINTENANCE. UPON INVESTIGATION, THE CYLINDER HEAD WAS FOUND TO HAVE SEPARATED FROM THE CYLINDER BODY ASDR HYIA20240319001Cylinder · failedPILOT REPORTED ROUGH ENGINE AND SMOKE COMING FROM THE EXHAUST. MAINTENANCE INSPECTED AND FOUND CYLINDER #3 EXHAUST ROCKER ARM PIN RETAINING COVER HAD FALLEN OFF AND PIN HAD MIGRATED OUT, CAUSING ROCKER ARM TO BECOME DISLODGED AND PUSH ROD TO CONTACT ROCKER COVSDR 2024FA0000065Piston · failedFOLLOWING A FLT TEST, IN PATTERN WITH ACFT & NEW ENG, DEPARTED KLUD FOR THE 2ND BREAK-IN FLT IAW SERVICE INSTRUCTIONS. MADE A FULL-STATIC POWER RUNUP & INITIATED TAKEOFF IN KLUD. CLIMBOUT NORMAL, ENTERED LT PATTERN & DEPARTED NORTH FROM LT DOWNWIND VFR AT APPRSDR EVGR2024040900001Piston Ring · stuckBETWEEN 24 & 49 HRS OIL CONSUMPTION WAS 8.7 HRS/QT. OIL CONSUMPTION WAS LOWEST AT 10 HRS PER QUART AT 240 HRS AND THEN INCREASED. AT 370 HRS IT WAS 6 HRS/QT. AT 513 HOURS WAS 4.4 HRS/QT. AT 567 HRS (100HR INSP) IT WAS 2.1 HRS/QT OVER 50 HOURS BUT WAS INCREASINSDR 8HBR20231216054Plug · wornALUMINUM SHAVINGS WERE FOUND IN THE OIL FILTER DURING 100HR INSPECTION. FOUND THIS TO BE A RESULT OF ALL PISTON PIN PLUGS BEING WORN ON ALL OF THE CYLINDERS AND THE CYLINDER WALLS HAVING A “RIDGE” AT THE BOTTOM OF THE RING TRAVEL.SDR 8HBR20231216055Plug · wornALUMINUM SHAVINGS WERE FOUND IN THE OIL FILTER DURING 100HR INSPECTION. FOUND THIS TO BE A RESULT OF ALL PISTON PIN PLUGS BEING WORN ON ALL OF THE CYLINDERS AND THE CYLINDER WALLS HAVING A “RIDGE” AT THE BOTTOM OF THE RING TRAVEL.SDR 8HBR20231216059Plug · wornALUMINUM SHAVINGS WERE FOUND IN THE OIL FILTER DURING 100HR INSPECTION. FOUND THIS TO BE A RESULT OF BOTH PISTON PIN PLUGS BEING WORN ON #1 CYLINDER AND THE CYLINDER WALL HAVING A “RIDGE” AT THE BOTTOM OF THE RING TRAVEL.SDR 8HBR20231216058Plug · wornALUMINUM SHAVINGS WERE FOUND IN THE OIL FILTER DURING 100HR INSPECTION. FOUND THIS TO BE A RESULT OF BOTH PISTON PIN PLUGS BEING WORN ON #1 CYLINDER AND THE CYLINDER WALL HAVING A “RIDGE” AT THE BOTTOM OF THE RING TRAVEL.SDR 8HBR20231216061Plug · wornALUMINUM SHAVINGS WERE FOUND IN THE OIL FILTER DURING 100HR INSPECTION. FOUND THIS TO BE A RESULT OF BOTH PISTON PIN PLUGS BEING WORN ON #1 CYLINDER AND THE CYLINDER WALL HAVING A “RIDGE” AT THE BOTTOM OF THE RING TRAVEL. AS WELL AS A BROKEN OIL REGULATOR RINGSDR 2023FA0000751Pushrod · damagedDURING INSPECTION FOR ROUGH RUNNING ENGINE, PERFORMED SB388C (EXHAUST VALVE GUIDE INSPECTION) & FOUND 3EA ROCKER ARMS P/N 17F19357 & 3EA PUSH RODS P/N 15F19957-10 WITH MECHANICAL DAMAGE (HEAVY SCUFF - SCORING). ROCKER ARMS & PUSH RODS TSN: 147.9. PREVIOUSLY RESDR 2023FA0000726Cylinder · abnormalTHE UNIVERSITY OF NORTH DAKOTA SWITCHED TO UL94 FUEL ON JUNE 23, 2023. FROM JUNE 23 TO OCTOBER 27, 2023, WE USED 386,778 GALLONS OF UL94 ACCUMULATING 46,600 FLIGHT HOURS, AN AVERAGE OF 463 HOURS PER AIRCRAFT. ON AUGUST 26, 2023 WE HAD AN AIRCRAFT WITH A ROUGH SDR 2023FA0000760Cylinder Head · low pressureCYLINDERS 2,4, AND 6 HAVE LOW COMPRESSION (30'S) THESE CONTINUE TO LOWER WITH EACH ANNUAL INSPECTION
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