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 HYIA20150918003Engine · damagedRIGHT ENG OIL PRESS DROPPED TO ZERO IN FLIGHT. DIVERTED & ON SHORT FINAL APPROACH RT ENG STOPPED RUNNING. PROPELLER DID NOT FEATHER. POST LANDING INSPECTION REVEALED OIL LEAKING FROM TOP & BOTTOM OF ENG COWLING. PRELIMINARY EXAMINATION REVEALS TOP OF CRANKSDR 8PCR20150910001Bolt · shearedCRANKSHAFT CLUSTER GEAR BOLTS, PN 536379, HAD SHEARED ALLOWING THE DISENGAGEMENT OF THE LARGE GEAR THAT COUPLES WITH THE STARTER ADAPTER SHAFT-GEAR. THE ENG WAS NOT IN COMPLIANCE WITH SERVICE BULLETINS SIL06-3 & SB13-6, WHICH RECOMMEND REPLACEMENT OF THE GEARSDR P9KA2015091401Thru Bolt · brokenWHILE PERFORMING A ROUTINE OIL & FILTER CHANGE, MECHANIC SAW LARGE AMOUNTS OF LEAKED OIL & A CRANKCASE THROUGH BOLT NUT IN THE COWLING. FURTHER INVESTIGATION REVEALED THAT THE LOWER FWD THROUGH BOLT HAD BROKEN AT THE NR 6 CYLINDER. UPON REMOVING THE REMAINS SDR 2015FA0000412Rod · failedENGINE FAILURE IN FLIGHT. ROD WAS FOUND TO HAVE EXITED CRANK CASE.SDR 2015FA0000358Crankshaft · brokenAIRCRAFT ON CLIMBOUT THROUGH 4000' EXPERIENCED SUDDEN LOSS OF POWER AND MADE A FORCED LANDING TO A HIGHWAY. INSPECTION REVEALED CRANKSHAFT BROKEN IN VICINITY OF MAIN BEARING JOURNAL JUST FORWARD OF CYLINDERS NR 1 & 2. METAL CONTAMINATION NOTED IN THE OIL SCSDR 2015FA0000359Housing · crackedDUE TO A "STUCK" EXHAUST VALVE IN 1 CYLINDER, THE ROCKER ARM BROKE, AND THE PUSHROD ASSOCIATED WITH THAT ROCKER ARM DAMAGED AND CRACKED THE FLANGE-PUSHROD HOUSING. THE CRACKED FLANGE-PUSHROD HOUSING CREATED AN OIL LEAK. THE "STUCK" EXHAUST VALVE WAS CAUSED BSDR 2015FA0000312Gland Nut · wrong partREMOVED NR 4 CYLINDER FOR REPAIR DUE TO LOW COMPRESSION, EXHAUST VALVE, FOUND CRACKED BUSHING IN CONNECTING ROD FOR WRIST PIN. REMOVED FOR REPAIR AND FOUND INCORRECT NUTS INSTALLED ON CONNECTING ROD ATTACH BOLTS. FURTHER INSPECTION REVEALED ALL CONNECTING ROSDR 7UVR2015080700368Chain · failedENGINE TIMING CHAIN BROKE DURING FLIGHT. PILOTS EXPERIENCED A POWER LOSS IN FLIGHT DOWN TO 30 PERCENT, ECU A & B FAULT CODES. ENGINE STOPPED ROTATING AFTER LANDING ROLL OUT, AND ENGINE DOES NOT ROTATE BY HAND. PROBABLE CAUSE IS UNKNOWN BUT THERE IS A SB THASDR BQVD201506090001Ring · seizedNR 4 CYLINDER WAS REMOVED AND DISCOVERED THE FOLLOWING: OIL CONTROL RING WAS SEIZED IN PISTON. PISTON, PISTON BORES WORN IN AREA WHERE PIN RESIDES ON BOTH SIDES OF PISTON. NO WRIST PIN CAP WEAR FOUND. CONTACT BEING MADE BETWEEN PISTON SKIRT END SURFACE & CSDR CA150526005Cam · worn(CAN) AT SPRING RUN UP, ENG SOUNDS LIKE TWIN ENG ACFT WITH PROPS OUT OF SYNC. CAM RING EXHAUST TRACK WEAR SUSPECTED AS IS A KNOWN PROBLEM WITH THIS INDICATION. CAM INSPECTED & WEAR FOUND ON 3 OF 4 CAM LOBES OF EXHAUST TRACK. CAM PN 11768 & 9 EXTRACK ROLLERSSDR CA150517001Lifter · corroded(CAN) DURING INSPECTION, LIFTERS WERE INSPECTED AFTER ONE WAS FOUND PITTED DURING MAINTENANCE DUE TO LOW COMPRESSION ON ONE CYLINDER. SIX LIFTERS WERE REPLACED DUE TO MINOR PITTING ON FACE, CAM WAS INSPECTED AND UNAFFECTED, NEW LIFTERS INSTALLED.SDR 2015FA0000240Piston · brokenREMOVED NR 3 CYLINDER DUE TO LOW COMPRESSION, 62/80 PSI, AND FOUND 1"X.5" PIECE MISSING FROM PISTON SKIRT.SDR 2015FA0000540Rod Bearing · failedROD BEARING FAILURE ON REMANUFACTUED ENGINE. 13 MONTHS, 406 HOURS. SUMP IAW STC SE09319SC. ENGINE MODIFIED. STC SUMP MFG DEFECTIVE CAUSING INTERFERENCE WITH OIL PICKUP.SDR 2015FA0000334Connecting Rod · failedNR 4 PISTON CONNECTING ROD FAILED AT CONNECTING ROD CAP BEARING AREA CAUSING SEPARATION OF CRANK SHAFT TO CONNECTING ROD. CRANKSHAFT REMAINED AS 1 PIECE WITH PISTON AND ROD BEING PUSHED INTO CYLINDER OUT OF WAY OF SPINNING CRANKSHAFT. NO OTHER INFORMATION AVSDR CA150501004Crankcase · cracked(CAN) CRANKCASE HALVES FOUND TO BE CRACKED AT NR 2 & NR 4 LOWER FORWARD THRU STUD REINFORCMENT BOSSES.SDR CA150424002Bushing · failed(CAN) UPON REMOVING THE NR 5 CYLINDER DUE TO LOW COMPRESSION, THE CONNECTING ROD WRIST PIN BUSHING WAS FOUND CRACKED ALONG THE CURVED AREA OF THE "KEYED" SEAM. AFTER CONSULTATION WITH THE ENGINE O/H FACILITY, THEY RECOMMENDED THAT THE REMAINING 5 CYLINDERS BE SDR CA150408034Balance Weight · loose(CAN) DURING A REGULARLY SCHEDULED INSPECTION TO REMOVE A CYLINDER & INSPECT THE POWER SECTION, IT WAS NOTICED THAT THE DYNAMIC BALANCE WEIGHTS HAD AN ALMOST .025 GAP WHICH WAS ABLE TO BE PRIED OPEN TO .060. THE LEADING BOLT COULD BE SPUN INDEPENDENTLY OF THESDR CA150401003Piston Ring · failed(CAN) ENGINE WAS SHOWING HIGH OIL CONSUMPTION AND LEAKING FROM BREATHER TUBE. COMPRESSION LEAK TEST REVEALED AIR LEAKING PAST PISTON RINGS AND INTO CASE.SDR CA150317007Piston · cracked(CAN) PILOT AND INSTRUCTOR EXPERIENCED AND ENGINE FAILURE ON FINAL. UPON INVESTIGATION NR 2 CYLINDER STUDS BROKE OFF THE CYLINDER WHERE THE CYLINDER MOUNTS ON TO THE ENGINE CASE. THE PISTON SKIRT WAS FOUND BROKEN AND THE CYLINDER SEPARATED FROM THE ENGINE. SDR 2015F00053Piston Ring · erodedPISTON PARTIALLY ERODED, FROZEN RINGS, ONE HOLE IN ONE RING GLANDS. ALUMINUM POWDER CONTAMINATION THROUGH THE ENGINE AND FILTER. ENGINE 50 SMOHSDR 2015FA0000245Crankcase · crackedDURING A 100 HOUR INSPECTION, FOUND A SUSPECT CRACK ON THE RT ENGINE BETWEEN THE NR 1 AND NR 3 CYLINDERS. PERFORMED A DYE PENETRATE INSPECTION AND VERIFIED AN APPROXIMATELY 4" CRACK IN THE CRANKCASE EXTENDING FROM A THROUGH BOLT UP INTO THE CRITICAL AREA AS OUSDR NI6R201502260023Pin · brokenRT ENGINE NR 5 WRIST PIN, INTERNAL ALUMINUM PIECE BROKEN.SDR NF2R201812200001Lifter · galledINSPECTION FOUND #1 CYLINDER EXHAUST LIFTER IN EARLY STAGES OF SPALLING AS REFERENCED IN TCM SID05-1.SDR HYIA2015022002Nut · crackedDURING INSPECTION FOUND ENG THROUGH BOLT NUT PN 652541 CRACKED ON THE NR 3 CYLINDER, CAUSING THE BOLT TO BACK OUT. NEW THROUGH BOLT NUTS ARE USED AT EACH OVERHAUL.SDR HYIA20150220002Nut · crackedDURING INSPECTION FOUND ENG THROUGH BOLT NUT PN 652541 CRACKED ON THE NR 3 CYLINDER, CAUSING THROUGH BOLT TO BACK OUT.SDR CA150205009Crankcase · cracked(CAN) FLIGHT CREW NOTICED SMALL OIL PUDDLE ON RT ENGINE, WIPED & CLEANED. NO SOURCE OF LEAK NOTED. ENG HAD 2.7 HR SINCE INSPECTION EVENT NR 2, COMPLETED. ACFT FLOWN 0,2 HR TO MAIN BASE WITH APPROVAL OF MX. COWLING REMOVED, ENG WASHED & CARRIED OUT ENG RUN,SDR BPY2015F00000Connecting Rod · brokenDURING CRUISE FLIGHT, NR 1 AND NR 2 CONNECTING RODS FAILED AT THE CRANK JOURNALS CAUSING THE ENGINE TO SEIZE. THE RODS BROKE BOTH CASE HALVES AND THE LT MAGNETO FROM THE CASE. REASON IS UNKNOWN. 1515.1 HRS SMOH.SDR CXIA2015F00000Connecting Rod · failedRIGHT ENGINE WAS SHUTDOWN IN FLIGHT, ENROUTE TO TOP DUE TO OIL LEAKING FROM COWLING. AIRCRAFT LANDED WITHOUT INCIDENT. ENGINE WAS FOUND TO HAVE HOLES IN THE TOP OF THE CRANKCASE AND A BROKEN CONNECTING ROD. UNABLE TO DETERMINE IF ANY SPECIFIC PART OR COMPONSDR WS9R2015FA0000008Crankshaft · brokenENGINE RECEIVED FOR O/H DUE TO HIGH METAL. DURING DISASSEMBLY, IT WAS DISCOVERED THAT A PIECE OF THE CHEEK ON THE CRANKSHAFT HAD BROKEN OFF ALLOWING THE COUNTERWEIGHT TO IMPACT CONNECTING RODS AND THE CRANKSHAFT. THE COUNTERWEIGHT PINS WERE UNDAMAGED. THE CSDR P9KA2014121901Bushing · looseDURING A CYLINDER CHANGE, THE SMALL END BUSHING IN THE CONNECTING ROD WAS FOUND SHIFTED & ROTATED IN ITS BORE IN THE NR 1 CONNECTING ROD. THE ENG WAS REBUILT TO ZERO TIME, 1290 OPERATING HOURS AGO.SDR HYIA20141208001Engine · failedRT ENG LOST POWER IN FLIGHT & ENDED UP SHUTTING IT DOWN. THE ACFT LANDED WITHOUT INCIDENT. UPON INSPECTION MX FOUND THE RT ENG CRANK CASE HAD BEEN PENETRATED. INITIAL INVESTIGATION LEADS UP TO BELIEVE A CONNECTING ROD SEPARATED FROM THE CRANKSHAFT. THE ENGSDR 2014FA0000701Crankshaft · brokenCRANKSHAFT BROKEN AT NR 3 MAIN JOURNAL. POSSIBLE INTERNAL FLAW AT MANUFACTURING.SDR UOIA20141114001Stud · brokenRIGHT ENG CYLINDER BASE NR 3 STUDS BROKEN.SDR 2015FA0000059Piston · brokenDURING AN ANNUAL INSPECTION, THE QUICK DRAIN OIL DRAIN VALVE WOULD NOT LOCK OPEN. A BLOCK OF WOOD WAS USED TO WEDGE UNDER THE DRAIN VALVE TO HOLD IT OPEN. AFTER THE OIL WAS DRAINED, THE VALVE WAS REMOVED AND THE VALVE LOCKED OPEN NORMALLY. LOOKED UP INTO THSDR 2014FA0000628Bolt · failedFOUND BOLT HEAD SEPARATED FROM BOLT SHANK. SAFETY TAB DID NOT APPEAR TO HAVE BEEN UPSET TO PREVENT BOLT HEAD ROTATION AND LOSS OF TORQUE. DRIVE IN WAS ALSO FOUND TO BE SHEARED INT TWO PIECES.SDR CA141020003Crankcase · cracked(CAN) DURING MORNING CHECK, FOUND OIL IN THE ENGINE COWLING, INVESTIGATION DETERMINE TO HAVE A CRACK IN THE LOWER SECTION OF CYLINDER NR 3. THE CRACK IS LOCATED IN THE LOWER SECTION BETWEEN CYLINDER NR 3 & 5. THE CRACK IS FROM CYLINDER NR 3 DRAIN FITTING ANDSDR 2014FA0000660Piston · destroyedSEVERE ENGINE DAMAGE FOUND DURING SCHEDULED 50 HR INSPECTION: DURING OIL AND FILTER CHANGE, CHIPS AND LARGE METAL PIECES WERE FOUND IN THE OIL, OIL SCREEN, OIL FILTER AND OIL SUMP. AFTER REMOVAL OF THE OIL SUMP IT TURNED OUT THAT THE PISTON SKIRT OF PISTON SDR HYIA20140930001Nut · looseDURING ROUTINE INSPECTION IT WAS DISCOVERED THAT THE NR 1 MAIN THRU BOLT NUT HAD BACKED OFF THE STUD IN FRONT OF THE OIL COOLER ON N83PB RT ENG. AS PRECAUTIONARY MEASURE THE RT ENG IS BEING CHANGED & SENT OUT FOR OVERHAUL.SDR HYIA20140926001Connecting Rod · separatedLEFT ENG FAILED AFTER TAKEOFF. UPON INSPECTION, IT WAS NOTED THE NR 5 CYLINDER CONNECTING ROD SEPARATED FROM THE CRANKSHAFT, CAUSING PENETRATION THROUGH THE CASE, EJECTING BOTH MAGNETOS FROM THEIR MOUNTS & CAUSING EXTENSIVE DAMAGE TO THE CYLINDER, CASE & ENG SDR 2014FA0000548Bolt · brokenDURING CRUISE FLIGHT, THE ENGINE QUIT WITHOUT WARNING. ACFT MADE AN OFF FIELD LANDING WITH NO DAMAGE TO THE ACFT. DURING MX, NOTED THAT THE VACUUM PUMP COUPLING WAS NOT SPINNING EVEN THOUGH IT WAS NOT SHEARED. THE RT MAGNETO WAS REMOVED AND IT WAS CONFIRMSDR NF2R201812190001Lifter · galledINSPECTION OF ALL 6 CYLINDERS FOUND 5 OUT OF LIMITS AND ALL CYLINDERS HAD BAD EXHAUST AND INTAKE GUIDES AND VALVES. FOUND LIFTERS ARE PITTED AND STARTING TO CHIP, CAMSHAFT IS UNDAMAGED AT THIS TIME.SDR EPUA20140911001Valve · failedDURING FLIGHT, THE LT ENGINE BEGAN TO HAVE PROBLEMS, THE PILOT SHUTDOWN THE ENGINE & SECURED FOR OPERATION ON SINGLE ENGINE. ACFT LANDED UNEVENTFULLY. ON INVESTIGATION, DETERMINED THAT THE NR 1 CYLINDER INTAKE VALVE BROKE AND PUT A HOLE IN THE NR 1 CYLINDSDR CA150319007Camshaft · worn(CAN) DURING A 100 HR INSPECTION, CYLINDER NR 4 DIFFERENTIALS WERE FOUND SATISFACTORY LIMITS. UPON FURTHER INSPECTION AFTER REMOVAL OF THE NR 4 CYLINDER, NR 4 INTAKE AND NR 3 EXHAUST LOBE ON CAMSHAFT DISPLAYED SIGNS OF PREMATURE WEAR. ENGINE WAS THEN REMOVEDSDR CA141001001Connecting Rod · failed(CAN) DURING CRUISE, THE ENGINE HAD HIGH VIBRATIONS FOR COUPLE OF SECONDS AND THEN THE ENGINE STOPS SUDDENLY. THE PILOT DID AN EMERGENCY LANDING. THE AME`S FOUND THE CYLINDER NR 5 BEEN PUNCTURED BY CONNECTING ROD. ENGINE OVERHAUL SHOP ACKNOWLEDGED THE PROBASDR CA140818016Camshaft · worn(CAN) LYCOMING FACTORY OVERHAULED ENGINE INSTALLED DEC. 2009. FIRST NOTICED METAL DURING INSPECTION ON MAY 2013 AT ENGINE TIME OF 353.6. IT WAS DETERMINED THAT THE AMOUNT OF METAL WAS MINIMAL OVER THE NEXT INSPECTION TIMES UNTIL AT ABOUT 585 HRS. ENG TT. A PRESDR CA140822003Crankshaft · cracked(CAN) DURING A ROUTINE INSPECTION, A CRACK WAS DISCOVERED ON THE ENGINE CRANKSHAFT FLANGE, WHERE THE PROPELLER MOUNTS. THE CRACK WAS VERY SEVERE AS VERY TINY PIECES OF THE FLANGE HAD BROKEN OFF. THE CRACK APPEARS TO EXTEND THROUGH THE FLANGE OTBD OF THE DOWESDR 2014FA0000433Gear · brokenDURING 100 HR INSPECTION, A GEAR TOOTH WAS FOUND IN OIL SUMP. AFTER FURTHER INSPECTION IT WAS FOUND TO BE A TOOTH FROM THE TIMING GEAR ON THE CRANKSHAFT.SDR NI6R201496120013Piston · out of toleranceDISCOVERED DURING INSTALLATION OF NEW PISTONS AND RINGS INTO NEW CYLINDER ASSY. FIRST AND SECOND PISTON RINGS DID NOT MEET NEW PARTS TOLERANCES IAW TABLE OF LIMITS CHART 2 IN CONTINENTAL MOTORS O/H MANUAL 72-30-14. ORDERED SECOND SET OF RINGS AFTER CONVERSATSDR A6YA2014052831822Lifter · spalledAFTER REMOVAL OF ALL CYLINDERS DUE TO TOP PISTON RING PLATING FLAKING, SDR A6YA2010052738221, ALL LIFTERS WERE REMOVED & INSPECTED IAW SID 05-1A. NR 2 & NR 5 EXHAUST VLV LIFTERS WERE FOUND TO HAVE FULL FACE SPALLING AS PICTURED IN SID 05-1A FIG 6 AND FIG 8. SDR CA140520001Stud · broken(CAN) WHILE PERFORMING OTHER MAINTENANCE IT WAS NOTICED THE BOTTOM 2 SMALL CYLINDER BASE STUDS NR 2 CYLINDER WERE BROKEN. BROKEN STUDS REMOVED AND ALL STUDS FOR NR 2 CYLINDER BASE WERE REPLACED WITH NEW.
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