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 CA140328007Plunger · failed(CAN) LW10286 IDLER GEAR WITH FUEL PUMP LOBE AND SL61544 FUEL PUMP PLUNGER CONTACT FACES FAILED BOTH ITEMS INSTALLED NEW AT OVERHAUL. ENGINE TIME 248 TSOH.SDR CA140328006Lifter · failed(CAN) NEW LW18840 CAMSHAFT AND NEW 15B26064 LIFTER BODIES FAILED. ENGINE FAILED AFTER OVERHAULED AT 248 HOURS.SDR CA140326019Case · cracked(CAN) DURING A ROUTINE 100 HR INSPECTION, OIL LEAK WAS NOTED AT THE FRONT OF THE ENGINE. INVESTIGATION FOR SOURCE OF OIL LEAK LED TO DISCOVERY OF CRACK IN CASE FROM BASE OF NR 3 CYLINDER, FORWARD AND DOWNWARD BEHIND STARTER.SDR CA140228006Crankcase · cracked(CAN) DURING REPETITIVE TROUBLESHOOTING FOR REPORTED LT ENGINE OIL LEAK, MAINTENANCE FOUND ENGINE CRANK CASE CRACKED APPROXIMATELY 6" LONG, EXTENDING FROM NR 6 CYLINDER BASE, UPWARD INTO CASE. ENGINE WILL BE REPLACED.SDR EPUA20140131001Lifter · dirtyENGINE ROUGH, BACKFIRES AT LOW POWER SETTINGS. CLEANED NR 1 INTAKE LIFTER & REINSTALLED. OPERATIONS CHECKED GOOD.SDR 2014FA0000042Crankshaft · failedDURING CRUISE FLIGHT, THE PILOT REPORTED AN ENGINE STOPPAGE, WHICH WAS FOLLOWED BY AN EMERGENCY LANDING. A POST ENGINE TEARDOWN INSPECTION REVEALED THAT THE CRANKSHAFT HAD SEPARATED JUST INBD FROM THE NR 3 CYLINDER ROD MOUNTING JOURNAL.SDR YAAA20140109001Crankcase · crackedFOUND ENG LT CRANKCASE ASSEMBLY CRACKED DURING MAINTENANCE PRE-FLIGHT. REMOVED ENG & SENT CRANKCASE ASSEMBLY REPLACEMENT.SDR CA131227004Crankcase · cracked(CAN) DURING 100 HOUR INSPECTION, A CRACK WAS FOUND IN THE CRANKCASE BEHIND THE TOP REAR STUD OF CYLINDER NR 3 RT AFT. THE ENGINE WAS REMOVED FOR REPAIR/ O/H. TOTAL TIME ON THE ENGINE CASE IS UNKNOWN.SDR CA131218010Lifter · damaged(CAN) WHEN THE LIFTER WAS REMOVED FOR BLEEDING AFTER A CYLINDER , IT WAS FOUND TO HAVE A SIGNIFICANT SIZE CHUNK MISSING FROM THE LIFTER FACE. THE ASSOCIATED CAM LOBE WAS INSPECTED AND FOUND TO BE IN SERVICEABLE CONDITION, THE LIFTER WAS REPLACED AND THE ENGINSDR CA131219009Crankcase · cracked(CAN) DURING INSPECTION OF THE ENGINE IT WAS NOTICED THAT THE RT LOWER FWD RADIUS OF THE RT CRANKCASE WAS CRACKED.SDR CA131219008Crankcase · cracked(CAN) DURING INSPECTION OF THE ENGINE, IT WAS NOTICED THAT THE RT LOWER FWD RADIUS OF THE RT CRANKCASE WAS CRACKED.SDR 5CSR2013FA0000778Case · crackedDURING AN OIL CHANGE, ENGINE WAS NOTED TO HAVE LARGE AMOUNT OF OIL IN THE COWLING AND ON THE ENGINE. AFTER CLEANING ENGINE, A CRACK WAS FOUND ABOUT 3 INCHES IN LENGTH FROM THE ALTERNATOR BRACKET ACROSS THE RT UPPER SECTION OF THE CASE.SDR 5CSR2013FA0000777Case · crackedOIL ON WINDSCREEN. ON CLEANING ENGINE, A CRACK WAS FOUND ABOUT 4 INCHES IN LENGTH FROM THE ALTERNATOR BRACKET ACROSS THE RT UPPER SECTION OF THE CASE.SDR 2013FA0000634Plug · failedAT CRUISE 6500 FT, NR 3 PISTON PIN ALUMINUM END PLUG BROKE OFF THE STEEL PIN. THIS CAUSED DAMAGE TO THE PISTON, RINGS, CYLINDER AND ULTIMATELY STOPPED THE ENGINE, SEIZED.SDR PCPR20131218001Crankcase · crackedOPERATOR REPORTED OIL IN ENGINE COMPARTMENT. TECHNICIAN PERFORMED VISUAL INSPECTION AND FOUND CRACK IN ENGINE CRANKCASE FORWARD OF NR 2 CYLINDER FLANGE.SDR 2013FA0000629Crankcase · crackedA CRACK WAS DISCOVERED IN THE CRANKCASE AT THE LOWER FORWARD CYLINDER BASE STUD OF THE NR 2 CYLINDER OF APPROXIMATELY 1.5 INCHES. STARTS FROM THE BOTTOM OF STUD AREA AND TRAVELS DOWN AND AFT. A SLIGHT AMOUNT OF OIL LEAKING FROM AROUND THE BASE OF CYLINDER ATSDR 2014FA0000237Piston Ring · brokenDURING IFR FLIGHT, VMC ON TOP, IMC BELOW, NORMAL CRUISE, EXPERIENCED DECLINING AND FLUCTUATING OIL PRESSURE ABOUT TWO HOURS AFTER TAKEOFF. NORMAL CRUISE OP IS APPROX 80 PSI. FLUCTUATIONS WENT AS LOW AS 40. LANDED ABOUT 40 MINUTES LATER. POST FLIGHT INSPECTISDR CA131106003Retainer · missing(CAN) DURING RECEIVING INSPECTION OF PARTS, OF THE 6 HYDRAULIC LIFTER ASSEMBLIES, PN 15B28093, RECIEVED, IT WAS FOUND THAT 3 OF THE ASSEMBLIES WERE MISSING THEIR CIRCLIP RETAINERS. VENDOR CONTACTED REGARDING THE ISSUE. PARTS TAGGED AS UNSERVICEABLE AND QUARESDR EVGR201304120001Plug · wornOIL ANALYSIS CAME BACK WITH VERY HIGH ALUMINUM METAL CONTENT IN THE OIL. METAL WAS ALSO VISIBLE IN THE DRAINED OIL WITH AN APPEARANCE LIKE METAL-FLAKE PAINT. THE FLAKES WERE SMALL ENOUGH THAT SOME WERE NOT BEING TRAPPED IN THE OIL FILTER EXCEPT SOME AS SLUDGSDR ISCA2013111400001Retainer · disintegratedPILOT REPORTED THAT ON DOWNWIND, IN TRAFFIC PATTERN AT DESTINATION AIRPORT, HEARD A LOUD "POP," AND EXPERIENCED A POWER LOSS ON THE LT ENGINE. ALSO NOTICED OIL AND SMOKE COMING OUT OF LT ENGINE COWL. SHUTDOWN ENGINE AND FEATHERED PROPELLER IAW ENGINE FAILURSDR 2013FA0000620Bolt · brokenSUDDEN STOPPAGE OF ENGINE. AFTER SUCCESSFUL OFF AIRPORT LANDING, ENGINE WAS INSPECTED AND FOUND CYLINDER NR 2 CONNECTING ROD BOLTS BROKEN/MISSING. BOLTS WERE INSTALLED IN SEPTEMBER 1999 AND HAD ACCUMULATED 487 HOURS.SDR ISCA2014F00011Case · damagedPILOT REPORTED THAT ON DOWNWIND IN THE TRAFFIC PATTERN AT THE DESTINATION AIRPORT, HEARD A LOUD "POP", AND AND EXPERIENCED A POWER LOSS ON LT ENGINE. NOTICED OIL AND SMOKE COMING OUT OF LT ENGINE COWL. SHUTDOWN ENGINE AND FEATHERED PROPELLER IAW THE ENGINE SDR 2013FA0000584Case · crackedWHILE TROUBLESHOOTING ROUGH RUNNING ENGINE ON MORNING RUNUP, ENGINE CASE FOUND WITH LARGE CRACK UNDER THE NR 2 CYLINDER, ENGINE REMOVED FROM SERVICE.SDR 2013FA0000510Lifter · spalledINSPECTED FILTER DURING ROUTINE OIL CHANGE, FOUND EXCESSIVE FERROUS METAL. DISCUSSION WITH O/H FACILITY CAUSED US TO REMOVE LIFTERS FOR INSPECTION. FOUND 7 OF 8 LIFTERS WITH DAMAGE. SUBSEQUENT DISASSEMBLY OF THE ENGINE REVEALED THE CAMSHAFT WAS ALSO DAMAGEDSDR 2013FA0000473Piston Pin · failedVISIBLE METAL PIECES WERE FOUND IN THE ENGINE OIL AND OIL FILTER MEDIA DURING SCHEDULED MAINTENANCE. THE ENGINE WAS DISASSEMBLED AND A VISUAL INSPECTION REVEALED THE NR 5 PISTON PIN HAD FAILED. SPECIFICALLY, THE PISTON PIN PLUG APPEARED TO BE THE SOURCE OF THESDR 2013FA0000388Crankcase · damagedCRANKCASE BROKE IN FRONT ABOVE AND BELOW OF NR 2 CYLINDER. LARGE PIECE OF CRANKCASE WAS STILL ATTACHED TO THE CYLINDER BASE WHEN REMOVED. ON INSP AND NON DESTRUCTIVE TESTING OF INTERNAL PARTS AND CYLINDERS, NO DAMAGE WAS FOUND. POSSIBLE CAUSE COULD BE METALSDR 2013FA0000412Crankshaft · crackedENGINE OVERHAULED 105 HOURS AGO, AND CRANK WAS ULTRASOUND TESTED OK. NO INCIDENTS OF ANY KIND HAVE EVER OCCURRED WITH THIS ENGINE OR PROPELLER, SUCH AS PROP STRIKE OR OTHER INCIDENT. FOUND A CRACKED ENGINE CRANK AT THE PROPELLER FLANGE. EDDY CURRENT TEST ANSDR CA130626011Crankshaft · sheared(CAN) WHILE ON A RETURN FLIGHT FROM TOBA INLET AND DESCENDING THROUGH 2000 FEET THE ENGINE STARTED TO SHAKE VIOLENTLY. THE VIBRATION WAS TO THE POINT WHERE THE PILOT HAD TO MAKE AN EMERGENCY LANDING IN HALF MOON BAY. THE POWER SETTING WAS PULLED BACK TO IDLE ASDR YWBR2013061725111Thru Bolt · undertorquedRECEIVED NEW IO-550-C ENGINE SN 1008500. REMOVED ENGINE FROM SHIPPING CRATE AND PLACED IN ENGINE STAND. UPON INSPECTION OF THE NEW ENGINE IT WAS NOTICED THE FRONT THRUST BEARING UPPER AND LOWER THROUGH BOLTS WERE NOT TORQUED. THE NUTS WERE ONLY FINGER TIGHTSDR 2014FA0000046Lifter · spalledTWO SPALLED EXHUAST LIFTERS WHICH DAMAGE CAM.SDR CA130424001Lifter · corroded(CAN) FIVE LIFTERS FOUND PITTED AND 1 LOB OF THE CAM WORN.SDR 2013FA0000234Gear · damagedAPPEARS CAMSHAFT GEAR HAD A TOOTH FAILURE WHICH LED TO A FAILURE OF THE CRANKSHAFT AND CAMSHAFT COMBINED GEAR FAILURES.SDR CA130422011Controller · faulty(CAN) ON TAKEOFF, THE PILOT REPORTED THE ACFT VEERING VERY HARD TO 1 DIRECTION, THE TAKEOFF WAS ABORTED. FURTHER INSPECTION REVEALED THAT THE RT ENGINE WAS ACCELERATING NORMAL UNTIL 30" MANIFOLD PRESSURE AND THEN DROPPING OFF POWER BACK TO IDLE. MAINTENANCESDR 2013FA0000226Lifter · brokenNR 6 INTAKE LIFTER BROKE APART IN FLIGHT DAMAGING THE CASE AND NR 5 & NR 6 CYLINDER ALONG WITH NR 5 & NR 6 PISTON CAUSING METAL CONTAMINATION OF THE OIL SYS. NEW LIFTERS PN 658088 INTAKES AND 658077 EXHAUST INSTALLED AT OVERHAUL.SDR CA130401025Crankcase · cracked(CAN) PILOT REPORTED FINDING AN OIL LEAK ON THE RT ENGINE AND ASKED MAINTENANCE TO INVESTIGATE. UPON INVESTIGATION THE SOURCE OF THE OIL WAS FOUND TO BE A CRACK ON THE RT SIDE OF THE CRANKCASE BETWEEN CYLINDER NR 3 & 5. AT LAST ENGINE O/H, THE ENGINE WAS ASSESDR CCJA201306280001Gear · failedDURING GROUND OPERATION, CAM SHAFT GEAR BROKE TWO TEETH. MOTOR AND DIRECTLY RELATED ACCESSORIES WERE REMOVED AND O/H. IT WAS UNDETERMINED BY THE O/H SHOP, THE CAUSE OF THE GEAR FAILURE.SDR CA130322007Camshaft · cracked(CAN) ENGINE HAD A PROPELLER STRIKE. PERFORMED A PROPELLER STRIKE INSPECTION AND FOUND WHAT APPEARS TO BE AN INCLUSION OR POSSIBLY A CRACK ON 1 OF THE CAMSHAFT LOBES.SDR YAAA201306200001Piston · fracturedNUMBER 1 PISTON WAS FRACTURED AT THE PISTON PIN BORE, RELEASING THE NR 1 ROD AND PISTON PIN ASSY AT THE SMALL END. THE UNSUPPORTED NR 1 ROD AND PISTON ASSY CAUSED EXTREME MECHANICAL DAMAGE TO THE REAR SECTION OF THE CRANKCASE AND CAMSHAFT.SDR CA130305001Crankcase · cracked(CAN) A CRACK WAS FOUND AS A RESULT FROM A VISUAL INSPECTION TO LOCATE A SMALL OIL LEAK. THE CRACK APPEARS TO HAVE ORIGINATED AT THE BOLT JOINING THE FRONT AND REAR SECTION OF THE POWER CASE. THE CRACK IS ABOUT 2.5" LONG ON THE REAR PORTION OF THE CASE BETWESDR 201305765Crankshaft · misinstalledFIVE OUT OF THE SIXTEEN SNAP RINGS IMPROPERLY INSTALLED IN THE COUNTER WEIGHTS. RETAINING RINGS WERE NOT INSTALLED IAW SB M93-4 AND SB 00-3A. THE CRANKSHAFT WAS DELIVERED DIRECT FROM THE FACTORY WITH THE SNAP RINGS INSTALLED INCORRECTLY.SDR XGN2013F00000Case · crackedENGINE CASE CRACK FROM CYLINDER NR3 LOWER AFT THRU BOLT AREA THRU MIDDLE OF CASE TOWARDS CYLINDER NR4 INCLUDING CRACK INTO THE OTHER CASE HALF.SDR 2013FA0000153Gear · wornUPON REMOVAL FROM ENGINES, IT WAS DISCOVERED THAT BOTH CAM GEARS SHOWED EXCESSIVE WEAR ON 2-3 TEETH. THE CAUSE FOR THIS WEAR CANNOT
BE DETERMINED. A SUGGESTION FOR PREVENTION WOULD NOT BE POSSIBLE.SDR CA130218012Lifter · failed(CAN) ENGINE WAS REMOVED FOR REPAIR AFTER FINDING METAL IN THE FILTER. IT WAS DISCOVERED THAT THE 6 INTAKE LIFTERS WERE FAILED OR FAILING. THESE LIFTERS WERE PART OF A NEW CAMSHAFT AND LIFTER KIT. THESE LIFTERS WERE MFG JUST BEFORE MANDATORY SB 09-8A. AWD. 2SDR CA130117013Camshaft · making metal(CAN) DURING A 100 HR INSPECTION, METAL FILINGS WERE DISCOVERED IN THE OIL FILTER. CYLINDER 2 AND CYL NR 4 WERE REMOVED AND THE CAMSHAFT INSPECTED. MISSING METAL WAS DISCOVERED ON THE NR 2 CYL EXHAUST LOBE. IN ADDITION WERE AND PITTING HAVE BEEN OBSERVED ON TSDR CA130122004Lifter · worn(CAN) CYLINDERS REMOVED FOR VALVE LAPPING DUE TO LOW COMPRESSION. LIFTERS FOUND TO HAVE PITTING AND WEAR ON CAM CONTACT SURFACE. CAM LOBES OK BUT SHOWING SOME SIGNS OF WEAR. CAM AND LIFTERS REPLACED WITH NEW. ENGINE TEST RUN OK AND RETURNED TO OWNER.SDR 2012FA0000805Lifter · spalledSMALL METALLIC PARTICLES NOTED IN OIL FILTER. SHARP EDGES, NOTED ON PARTICLES UNDER MAGNIFIED VISUAL INSPECTION, INDICATED POSSIBILITY OF LIFTER FACE SPALLING. REMOVED SAMPLE LIFTER AND NOTED SPALLING ACROSS FACE. R & R ALL LIFTERS IN ENGINE AND INSPECTED CSDR 2013FA0000004Piston · damaged20 MINUTES INTO FLIGHT, EXPERIENCED ROUGH RUNNING ENGINE, FOLLOW BY A LOSS OF POWER THEN TWO BANGS, LOST RMP, THEN REGAINED. PROCEEDED TO DESTINATION AND DID A PRECAUTIONARY LANDING UNEVENTFUL. REPLACED NR 3 CYLINDER, THEN FLEW BACK DEPARTURE.SDR YAA2012F00000Crankshaft · brokenCRANKSHAFT BROKE IN FLIGHT AND PROPELLER DEPARTED ENGINE.SDR BR82013F00000Main Bearing · spunWE BELIEVE THAT THE FAILURE OF THE CRANK WAS CAUSED BY A CENTER MAIN BEARING THAT SPUN. THE SPUN BEARING PUT UNDO STRESS AND POSSIBLE DAMAGE TO THE CRANK ASSY THAT WAS INSTALLED IN THE ENGINE. BECAUSE OF THE WEAR OF THE SPUN BEARING, WE BELIEVE THAT THE CRANSDR 2012FA0000789Camshaft · brokenAFTER ENGINE FAILURE. REMOVED COWLING, PERFORMED VISUAL INSPECTION OF ENGINE, FOUND NR 3 EXHAUST VALVE PUSH-ROD TUBE HOUSING BROKEN AND PUSH-ROD BENT. REMOVED TOP SPARK PLUGS, THEY APPEARED NORMAL. COMPRESSION CHECK DETERMINED 3 & 5 AND 2 & 4 TO HAVE NO COM
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