JASC 8520
Service difficulty reports · 2,213
Reports filed under 8520 · Reciprocating Engine Power 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 = '8520' 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 = '8520' 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 2023FA0000844Seal · failedUPON ,NSPECLION OL THE ENGINE TO DOTERMINE THE SOURCE OF A SIGNIFICANT OIL LEAK, IT WAS DETERMMED TO BE FROM LHE CRANKSHAFT SEAL. THE DEFECTIVE SEAL WAS REMOVED. AND THE AREA WAS CLEANED AND PEEPARED. AND A NEW SEAL WAS INSTALLED IAW SERVICE INSTRUCTION 13792SDR E5ZR202308070001Crankshaft · rustedCONTINENTAL SUPPLIED, UNDER WARRANTY, A NEW REPLACEMENT CRANKSHAFT ASSEMBLY P/N: 649900 S/N: N23BA108 (8130-3 DATED 02/JUN/2023) TO REPLACE A PREVIOUSLY SUPPLIED NEW CRANKSHAFT ASSEMBLY. THE S/N: N23BA108 CRANKSHAFT (#2) WAS SUPPLIED BY CMI BECAUSE IT WAS FOSDR 2022FA0000741Crankshaft · crackedOIL LEAK, TROUBLESHOT AND FOUND CRANKSHAFT, PROPELLER FLANGE CRACKED 1/2 WAY AROUND CIRCUMFERENCE. ENGINE IS NEW WITH 13.6 HOURS ON IT.SDR 2022FA0000439Pushrod · making metalFOUND THIS PROBLEM ON MULTIPLE ENGINES INCLUDING NEW AND LOW TIME ENGINES FROM LYCOMING. THE JUNCTION BETWEEN ROCKET ARM AND PUSHROD DOESN'T GET ADEQUATE OIL AND RUBS. THIS CAUSES SERVER WHERE AND METAL CONTAMINATION. I HAVE FOUND THIS ISSUE A LOT AND NEEDS TOSDR 2022FA0000035Rocker · damagedPUSH ROD DROVE ACROSS ROCKER (HOLE) ENGINE VIBRATION AND LOSS OF POWER FALLOWEDSDR 2023FA0000376Camshaft · distressedDURING ROUTINE MAINTENANCE SEVERE DISTRESS OF CAMSHAFT LOBE AND LIFTERS WAS IDENTIFIED. THE MAINTENANCE WAS CARRIED OUT DURING INTERNATIONAL TRAVEL, IN AUSTRALIA. PLEASE CONTACT ME FOR PHOTOGRAPHS/ENGINE INSPECTION REPORT.SDR JZYR2021FA0000239Connecting Rod · brokenA CONNECTING ROD BROKE CAUSING SIGNIFICANT INTERNAL DAMAGE. THE CRANKSHAFT, CONNECTING RODS, AND POSSIBLE OTHER COMPONENTS HAVE SIGNIFICATE AMOUNTS OF ELECTROLYSIS SPOTS. THESE ARE QUITE DIFFERENT THAN CORROSION. UNCERTAIN OF THE CAUSE. THE INTERNAL COMPONENTSSDR 2021FA0000108Piston Pin · mismanufacturedLYCOMING PISTON PIN PLUG PART NUMBER 72198---IMPROPER MACHINING.--- SIX PISTON PIN PLUGS HAD TO BE MEASURED UNTIL WE FOUND ONLY TWO THAT WERE WITHIN THE LYCOMING TABLE OF LIMITS SOME WERE TRUNCATED--- IE BIGGER AT ONE END THAN THE OTHERSDR 2021F00034Pin · wornDURING CRUISE POWER SETTINGS ALTERNATOR BELT WOULD BE THROWN OFF. AT RECOMMENDATION OF ENGINE SHOP, REMOVED CYLINDERS ONE AND TWO. REMOVED COUNTERWEIGHT AND FOUND PINS AND BUSHINGS TO BE WORN BEYOND LIMITS LIKELY CAUSING VIBRATION.SDR 2021FA0000001Crankcase · crackedWE WERE CONTRACTED BY AN INSURANCE BROKER TO REMOVE ENGINE FROM A BEECH E35 (N3473B) AFTER IT FAILED DURING THE ENGINE'S FORTH GROUND RUN UP AFTER THE ENGINE WAS O/H AND ALL CYLINDERS WERE REPLACED BY MAINTENANCE AT AIRPORT. DURING THE ENGINE REMOVAL WE FOUNDSDR 2020FA0000481Seal · leakingIN RESPONSE TO A REPORT OF OIL ON THE FRONT OF THE ENGINE, THE MAINTENANCE STAFF DISCOVERED THE NOSE SEAL LOOSE AND ROTATING IN THE CASE WHEN THE PROP AND CRANKSHAFT WAS ROTATED. SUBSEQUENTLY, THE SUSPECT NOSE SEAL WAS REMOVED AND REPLACED WITH A NEW SEAL, IASDR BEMA20201028001Connecting Rod · brokenPILOT NOTICED ONSET OF SIGNIFICANT VIBRATION, FOLLOWED BY OIL PRESSURE LOSS. SHUT DOWN LT ENGINE ON FINAL AT KMSP. PILOT NOTIFIED MSP TOWER OF ENGINE FAILURE. ONCE ON GROUND UPON COWLING REMOVAL THERE WAS EVIDENCE THE PISTON ROD ON NR 8 CYLINDER HAD A ROD BSDR 2020FA0000479Seal · leakingIN RESPONSE TO A REPORT OF OIL ON THE FRONT OF THE ENGINE, THE MAINTENANCE STAFF DISCOVERED THE NOSE SEAL LOOSE AND ROTATING IN THE CASE WHEN THE PROP AND CRANKSHAFT WAS ROTATED. SUBSEQUENTLY, THE SUSPECT NOSE SEAL WAS REMOVED AND REPLACED WITH A NEW SEAL, IASDR 2020FA0000480Seal · leakingIN RESPONSE TO A REPORT OF OIL ON THE FRONT OF THE ENGINE, THE MAINTENANCE STAFF DISCOVERED THE NOSE SEAL LOOSE AND ROTATING IN THE CASE WHEN THE PROP AND CRANKSHAFT WAS ROTATED. SUBSEQUENTLY, THE SUSPECT NOSE SEAL WAS REMOVED AND REPLACED WITH A NEW SEAL, IASDR 2020FA0000392Thru Bolt · loose125 HRS AFTER MAJOR REPAIR BY RAM AIRCRAFT FRONT TWO THROUGH BOLTS FOUND BELOW MINIMUM TORQUE AND LEAKING OIL.SDR 2020FA0000369Crankshaft · brokenAFTER TAKEOFF/CLIMB NOTICED VIBRATIONS TURN BACK TOWARDS FIELD RETARD THROTTLE AND HEARD A BANG AND WINDSHIELD AND CANOPY COVERED IN OIL EMERGENCY SHUT DOWN. WAS ABLE TO LAND WITHOUT FURTHER INCIDENT. AFTER LAND NOTICED SPINNER/PROP AND PROP FLANGE MISSING UPOSDR 2020FA0000365Seal · debondedDURING PHASE INSPECTION FOUND THE FORWARD CRANKSHAFT SEAL LOOSE AND LEAKING. UPON REMOVAL FOUND THE ADHESIVE USED BY THE MANUFACTURER HAD FAILED TO ADHERE TO THE ENGINE CRANKCASE ALLOWING THE SEAL TO ROTATE WITH THE CRANKSHAFT. THIS HAS BECOME A COMMON PROBLEMSDR 2020FA0000331Rod · brokenDECLARED AN EMERGENCY DURING CRUISE FLIGHT AT 5500 FT. THE PILOT REPORTED ENGINE FAILURE TO ATC AND MADE A FORCED LANDING ON A HIGHWAY, APPROXIMATELY 12 MILES NORTHEAST OF THE DEPARTURE AIRFIELD. .AIRCRAFT LANDED SAFELY, WITH NO DAMAGE. VISUAL INSPECTION DURSDR 2020FA0000249Crankshaft · crackedAIRCRAFT IN FOR ANNUAL INSPECTION, REMOVED SPINNER TO CHECK PROP HUB, S/N, MODEL. NOTICED CRANKSHAFT OIL PLUG MISSING, LOOKED INSIDE CRANKSHAFT BORED HOLE I NOTICE A 1/2" CRACK AT BOTTOM OF BORED HOLE CRACK STARTS AT CENTER OF CRANKSHAFT AND RADIATES OUTWARD.SDR HYIA20200422001Bushing · migratedDURING ROUTINE INSPECTION AND REPLACEMENT OF THE RIGHT ENGINE CYLINDER #6 IT WAS DISCOVERED THAT THE CONNECTING ROD BUSHING OF THE #6 CYLINDER WAS FOUND TO BE LOOSE AND MIGRATING. THE CONNECTING ROD AND CYLINDER WILL BE REPLACED.SDR 2020F00280Lifter · spalledREMOVED ALL HYDRAULIC LIFTERS TO INSPECT FOR SPALLING, DISCOVERED BADLY SPALLED EXHAUST LIFTER ON CYLINDER #4. INSPECTED CAM IN ACCORDANCE WITH CONTINENTAL SERVICE DIRECTIVE SID05-1B, INSTALLED NEW LIFTER AND WILL INSPECT CAM AGAIN IN 100 HOURS. IT IS DOUBTFSDR 2020FA0000080Lifter · spalledPILOT REPORTED LOW OIL PRESSURE AT IDLE, REMOVED OIL PRESSURE REGULATOR AND FOUND SHARP METAL CHIP IN BOTTOM OF REGULATOR WHERE IT HAD ARRIVED AFTER FALLING OUT OF REGULATOR SEAT. PREVIOUS EXPERIENCE LED US TO BELIEVE THAT THE METAL WAS FROM A LIFTER, WE INSPSDR S1ZA2019120500003Crankcase · crackedCRACKED CRANK CASE. REMOVED ALL CYLINDERS DUE TO 4 BEING LOW COMPRESSION. 2 OTHER CYLINDERS WERE RECENTLY REPLACED BY PERSONS UNKNOWN AT EXACT TIME UNKNOWN. I FOUND 8130-3 FORMS FOR THE TWO REPLACED CYLINDERS(5&3) OPPOSITE THE CASE CRACK, DATED MARCH 1, 2019SDR HYIA20191112002Crankcase · failedPILOT REPORTED STEADILY DECREASING OIL PRESSURE AT LT ENGINE. CREW INTENTIONALLY CAGED LT ENGINE WHEN ‘MECHANICAL’ NOISES WERE HEARD AND SAFELY LANDED. INITIAL INSPECTION FOUND MULTIPLE CRANKCASE BREACHES AND INDICATIONS OF POSSIBLE OIL STARVATION. ADDITIONALSDR IKBR20191679088Case Half · crackedOWNER COMPLAINED OF OIL LEAK AFTER SEVERAL TRIES THE LEAK WAS FOUND TO BE A CRACK IN THE ENGINE CASE BETWEEN THE #2 AND #4 CYLINDERS BEHIND THE OIL FILLER TUBE MAKING THE LEAK AND CRACK VERY DIFFICULT TO DETECTSDR P39A20191216001Crankshaft · brokenPILOTS REPORTED THAT THE AIRCRAFT STARTED RUNNING ROUGH, VIBRATING, LOSS POWER, THEN STOPED. THEY MADE EMERGENCY PERCIEDURES AND LANDED, IN A NEARBY EMPTY CORN FIELD. UPON REMOVAL AND INSPECTION OF THE ENGINE, AFTER REMOVING THE NUMBER FOUR CYLINDER WE DISCOVESDR 2019FA0000314Crankshaft · fracturedCRANKSHAFT FRACTURE RESULTING IN INFLIGHT ENGINE FAILURE. FOUND DURING ACCIDENT INVESTIGATION.SDR 2019FA0000347Crankshaft · failedIN FLIGHT FAILURE OF CRANKSHAFT. CRANKSHAFT SEPARATED AFT OF #2 MAIN BEARING. THERE WAS SEVERE DISTRESS OF THE #2 MAIN BEARING, CRANKCASE INTERIOR AND THE LOWER PART OF CYLINDERS 1 AND 2. ENGINE IMMEDIATELY LOST POWER. FORCED LANDING WAS SUCCESSFULLY PERFORMEDSDR UOIA2019009130000Crankshaft · failedENGINE CRANKSHAFT GEAR FAILURE.SDR 2019FA0000266Camshaft · spalledFOUND EXCESSIVE AMOUNT OF FERROUS METAL IN OIL FILTER DURING NORMAL MAINTENANCE. UPON INSPECTION FOUND 5/6 CAM LOB SPALLED. THIS IS THE SECOND WORN CAM IN THIS ENGINE IN THREE YEARS.SDR 2019FA0000283Intake Pipe · cutDURING INITIAL CLIMB, NR 2 ENGINE BACKFIRED SEVERAL TIMES. PROPELLER WAS FEATHERED AND ENGINE WAS SHUT DOWN. DURING POSTFLIGHT INSPECTION FOUND INTAKE HOSE P/N 2058D117 WAS CUT AND THE CLAMP AND INTAKE PIPE P/N 110082 WAS LOOSE FROM THE #1 CYLINDER. ALSO FOUNSDR CA190717008Camshaft · failed(CAN) ENGINE HAS 825 TT SINCE OVERHAUL (OTHER MTCE FACILITY 2018). AT 682 HRS TIS, CAMSHAFT REMOVED BY THE OTHER FACILITY DUE TO FAILURE. MARCH 2019 MAINTENANCE ENTRY INDICATES A NEW CAMSHAFT INSTALLED AT THIS TIME. 142 HRS TIS, ENGINE RECEIVED DUE TO METAL COSDR CA190628007Crankcase · cracked(CAN) R/H CRANKCASE LOWER SECTION 4 CM CRACK FROM FLANGE (TC# 20190628007)SDR CA190617026Dowel Pin · broken(CAN) AIRCRAFT SUFFERED ENGINE LOSS. THE DOWEL AT THE REAR OF THE CRANKSHAFT BROKE CAUSING THE CAMSHAFT AND MAGNETOS NOT TO TURN. PILOT DID FORCED LANDING. NO INJURIES TO PILOT OR AIRCRAFT. SEE TSB REPORT A19P0068 (TC# 20190617026)SDR CA190615001Tube · bent(CAN) C-XXXX WAS ON APPROACH INTO XXX WHEN THE AIRCRAFT ENGINE STARTED VIBRATING EXCESSIVELY. PILOT PROCEEDED TO LAND AIRCRAFT WITH NO ISSUES. UPON INSPECTION THE AME FOUND A BENT PUSH ROD TUBE & SHROUD AS A RESULT OF A STUCK EXHAUST VALVE. (TC# 20190615001)SDR CA190823007Case Half · cracked(CAN) OWNER OF AIRCRAFT REPORTED AN OIL LEAK. UPON INSPECTING FOR THE OIL LEAK A CRACK WAS FOUND. CRACK WAS APPROXIMATELY 6 INCH LONG IN THE CASE HALF ABOVE THE THE #2 CYLINDER BORE INTERSECTING WITH TOP REAR CYLINDER BASE STUD. ENGINE WAS REMOVED AND SENT FSDR CA190521033Cotter Pin · broken(CAN) DURING ROUTINE MAINTENANCE A PIECE OF METAL WAS FOUND IN THE L/H ENGINE OIL SUMP SCREEN. FURTHER INVESTIGATION FOUND THAT THE COTTER PIN INSTALLED INTO THE #4 CYLINDER CONNECTING ROD BOLT HAD BROKEN. THE HEAD OF THE COTTER PIN IS WHAT WAS FOUND IN THE OISDR 2020FA0000126Bolt · crackedDURING ENGINE OVERHAUL THE CRANKSHAFT GEAR WAS BEING INSTALLED PER LYCOMING SB475C. AFTER THE INITIAL TORQUE WAS APPLIED AND THE GEAR SEATED INTO THE END OF THE CRANKSHAFT IT WAS BROUGHT UP TO 660 IN LBS. DURING THE TORQUEING PROCEDURE IT DID NOT TORQUE TO 6SDR 2020FA0000105Camshaft · galledCAMSHAFT LOBES 1 AND 2 GALLING AND ERODED. REDUCED LOBE LIFT OF VALVES RESULTED IN LOSS OF PERFORMANCE.
SDR T72A20190411001Crankshaft · brokenPILOT REPORTED, ENGINE MADE A LOUD NOISE THEN LOST POWER AND STOPPED TURNING. AIRCRAFT WAS FORCED TO MAKE A LANDING IN SEMI-FROZEN TUNDRA AND FOLDED THE NOSE GEAR, FOLDED RIGHT HAND MAIN LANDING GEAR, AND BROKE LEFT HAND MAIN LANDING GEAR AXLE. ENGINE TEAR DOWSDR CA190305017Camshaft · damaged(CAN) FACTORY NEW CAMSHAFT VISUALLY INSPECTED AND SIGNIFICANT AREAS OF CORROSION OBSERVED ON LOBE JOURNALS AND BEARING JOURNALS. CORROSION INCLUDED SURFACE PITTING AND PENETRATION. NO EVIDENCE OF THE PACKAGE OR LYCOMING CAMSHAFT BOX BEING OPENED OR TAMPERED WISDR 2019FA0000238Crankcase · crackedDEPARTED (MEZ) TO (JBR) ON A VFR FLIGHT, EXPERIENCED ROUGH RUNNING ENGINE, LOSS OF OIL PRESSURE, AND SUBSEQUENT ENGINE FAILURE APPROXIMATELY 40 MINUTES INTO THE FLIGHT. THE PILOT LANDED IN AN OPEN FIELD. INVESTIGATION REVEALED THE ENGINE FAILED TO A MAIN BEARISDR CA190305011Camshaft · worn(CAN) DURING A GROUND RPM CHECK IT WAS NOTICED THAT WE WERE UNABLE TO MAKE STATIC RPM ON THE AIRCRAFT WITH MINIMUM REQUIREMENT BEING 2300 WE COULD ONLY MAKE 2250. AFTER TRYING SEVERAL THINGS WITH NO IMPROVEMENT IT WAS DECIDED TO PULL ONE CYLINDER TO INVESTIGATSDR Q9UA2019022726Oil System · overheatedDURING CLIMB POWER SETTING, THE OIL TEMPERATURE BEGAN TO RISE TO 80-90 DEGREES AND THE OIL PRESSURE DROPPED TO 60 PSI, ENGINE WAS SHUTDOWN AND FEATHERED.SDR 2019FA0000042Nut · crackedDURING MAINTENANCE TO TROUBLESHOOT A FAILED NR 2 ALTERNATOR, WE NOTICED A THRU-BOLT NUT MISSING FROM NR 4 TOP CYLINDER AND THE THRU-BOLT MIGRATED OUT ONTO THE NR 5 CYLINDER. THE NUT WAS FOUND IN THE BAFFLING BENEATH THE CYLINDER AND IT HAD FAILED BY CRACKING.SDR 2020FA0000060Plug · brokenFLIGHT TRAINING. THE PIN CAP/PLUG BROKE OFF. THEN BROKE THE PISTON.SDR 8SCA201906040001Lifter · faultyAT ANNUAL INSPECTION MECHANIC NOTED THAT IT WAS DIFFICULT TO REACH FULL RPM FOR STATIC GROUND RUN UNTIL TURBO ENGAGED. AFTER INSPECTING THE ENGINE IT WAS FOUND THAT ALL. 12 LIFTERS WERE COLLAPSING AND ROCKER ARM CLEARANCE WAS BEYOND LIMITS. THE ENGINE WAS TORNSDR 5RWA202001220000Journal · crackedDURING ANNUAL INSPECTION IT WAS DISCOVERED THE NR 6 CYLINDER WAS BELOW LIMITS ON COMPRESSION CHECK. WHILE REPLACING THE PISTON AND PISTON PIN THE TECHNICIAN DISCOVERED A CRACK PROPAGATING FROM THE CRANKSHAFT BEARING JOURNAL TO THE EDGE OF THE 7TH STUD. THISSDR 2019FA0000043Connecting Rod · brokenPILOT FELT A SHUDDER OF THE LEFT ENGINE AND IT SHUT DOWN ON ITS OWN. THE AIRCRAFT LANDED WITHOUT INCIDENT. UPON INSPECTION WE FOUND THAT THE PROP DID NOT FEATHER, THE ENGINE SEIZED, THERE ARE THREE HOLES IN THE TOP ON THE LEFT ENGINE CASE HALF, OBSERVED THROUGSDR HYIA20181130001Crankshaft · fracturedPILOT REPORTED DURING CLIMB/CRUISE FLIGHT THE RIGHT HYDRAULIC FLOW LIGHT CAME ON AND RIGHT ENGINE LOST POWER. UPON INITIAL INSPECTION, THE ENGINE WAS FOUND TO BE SEIZED. PISTONS AT CYLINDERS 1-4 WERE FOUND TO BE IN THE TOP DEAD CENTER POSITION. CYLINDER #3 W
Back to JASC 8520