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 CA040622004Crankcase · cracked(CAN) WHILE CONDUCTING PRE-FLIGHT CHECK, OIL DRIPS WHERE NOTICED. AFTER VERIFICATION BY AN AMO, IT WAS DETERMINED THAT THERE WAS A SMALL CRACK IN THE CRANKCASE. ENGINE DISASSEMBLED AND CRANKCASE WAS REPLACED.SDR GSH2002F00001Stud · shearedCYLINDER BASE STUDS ON NR 8 CYLINDER SHEARED OFF, ALLOWING CYLINDER TO PULL OFF OF CYLINDER BASE SPIGOT. WHEN THE CYLINDER GOT FAR ENOUGH OFF THE SPIGOT, THE BOTTOM RING SNAGGED THE BOTTOM OF THE CYLINDER, BREAKING THE RING AND PISTON. THIS LET THE OIL ESCAPSDR EEJ2002F00003Bolt · failedENGINE SUFFERED WHAT APPEARS AS A CONNECTED ROD BOLT FAILURE OR ROD FAILURE. ROD ASSY BROKE-NR 1 CYLINDER PAD AREA DAMAGED. NOSE SECTION OF CASE BROKEN.SDR WVB2002F00001Connecting Rod · damagedDURING INSPECTION A LARGE PIECE OF CAST ALUMINUM WAS FOUND IN THE SUCTION SCREEN. THE ODD BANK OF CYLINDERS WERE REMOVED TO LOOK FOR DAMAGE. NR 6 CONNECTING ROD CAP WAS OBSERVED TO BE SCUFFED. SEVERAL ACCESSORIES WERE REMOVED AND NO DAMAGE WAS NOTED IN THE SDR AUS20020580Crankcase · failed(AUS) CRANKCASE FAILED. LIMITED INFORMATION PROVIDED.SDR 2002FA0000654Gear · mismanufacturedFOUND CRANKSHAFT GEAR TO HAVE ITS TIMING MARK OFF BY ONE TOOTH. FAA INSPECTOR NOTE: MECHANIC SAID ENGINE WOULD NOT DEVELOP FULL POWER.SDR AG2R04230201Bushing · failedCOUNTER WEIGHT BUSHINGS (PN LS73810) HAVE FAILED AT 2 TO 250 HOURS. IT APPEARS THAT THE MATERIAL MAY BE TOO SOFT. BUSHINGS WERE REMOVED BY OPERATOR AND SENT BACK FOR EVALUATION.SDR CA020606009Counterweight · separated(CAN) ROLLER RETAINING PLATE VIBRATED THROUGH SIDE OF COUNTERWEIGHT ALLOWING ROLLER TO FALL OUT. COUNTERWEIGHT THEN STRUCK CRANKCASE CAUSING NOISE. CRANKSHAFT CRACKED AT OPPOSITE BUSHING FROM OVERLOAD. CRANKCASE AND TWO PISTONS DESTROYED.SDR CA020422007Gear · broken(CAN) DURING CLIMB, RT ENGINE SUDDENLY LOST POWER AND FEATHERED. CREW RETURNED FOR LANDING. MAINT CREW DISPATCHED AND REPLACED ENGINE WITH OVERHAULED ENGINE. A/C RETURNED TO SERVICE. THE REAR CASE OF FAILED ENGINE REMOVED, CRANKGEAR FOUND TO HAVE FAILED. ITSDR CA020503005Crankcase · cracked(CAN) DURING A 50 HOUR INSPECTION, AN OIL LEAK WAS NOTED ON THE CRANKCASE HOUSING. FURTHER INSPECTION REVEALED A CRACK ON THE FORWARD LEFT HAND PART OF THE CASE.SDR VNW2002F00000Boss · failedTHE CRANKSHAFT IDLER GEAR SHAFT BOSS AT THE CRANKCASE AND THE CRANKSHAFT IDLER GEAR SHAFT BOSS AT THE ACCESSORY CASE FAILED. RESULTING IN MEDAL IN OIL SCREEN AND OIL FILTER AND A LOSE IN OIL PRESSURE. IT IS BELIEVED THAT THE CRANKCASE BOSS FAILED FIRST. THISDR AUS20020324Crankshaft · failed(AUS) CRANKSHAFT FRACTURED IN AREA JUST FORWARD OF THE NO2 MAIN BEARING. CRANKCASE FRACTURED AND SEPARATED FROM ENGINE. PROPELLER SEPARATED. DAMAGE TO COWLS AND FUSELAGE. AIRCRAFT ISREGISTERED IN VANUATU.SDR CA020401003Connecting Rod · failed(CAN) AIRCRAFT WAS IN A CRUISE CONFIGURATION WHEN A SEVERE VIBRATION, NOISE, AND OIL LEAK WAS OBSERVED FROM THE LEFT HAND ENGINE OF THE AIRCRAFT.AIRCRAFT ENGINE WAS SHUT DOWN, PROP FEATHERED, AND THE AIRCRAFT MADE A SAFE LANDING. INITIAL EXTERNAL EXAMINATION OSDR CA020401006Connecting Rod · broken(CAN) AIRCRAFT WAS IN A CRUISE CONFIGURATION WHEN A SEVERE VIBRATION,NOISE, AND OIL LEAK WAS OBSERVED FROM THE LEFT HAND ENGINE OF THE AIRCRAFT.AIRCRAFT ENGINE WAS SHUT DOWN, PROP FEATHERED, AND THE AIRCRAFT MADE A SAFE LANDING. INITIAL XTERNAL EXAMINATION OF SDR 2003FA0000323Crankshaft · brokenOWNER COMPLAINED ABOUT THE ENGINE KNOCKING. BROUGHT ENGINE TO US FOR INSPECTION. UPON DISASSEMBLY WE FOUND THE CRANKSHAFT IN TWO PIECES. THE CRANKSHAFT WAS BROKEN BETWEEN THE FRONT MAIN JOURNAL AND THE NR 4 ROD BEARING JOURNAL. ENGINE WAS OPERATING ON AUTOSDR 2002FA0000393Cotter Pin · brokenDURING ANNUAL INSPECTION FOUND COTTER PIN IN THE OIL SUCTION SCREEN. THE COTTER PIN WAS BROKEN INTO THREE PIECES. FURTHER INSPECTION OF THE ENGINE FOUND THE COTTER PIN MISSING FROM CYLINDER NUMBER FOURS LOWER CONNECTING ROD BOLT. I BELIEVE THE COTTER PIN WASDR AUS20020191Tappet · cracked(AUS) RH ENGINE NO6 CYLINDER INLET TAPPET AND NO4 CYLINDER EXHAUSTTAPPET BODIES CRACKED.SDR EVC2002F00000Connecting Rod · brokenNR 1 CONNECTING ROD BOTS BROKEN.SDR CA020313005Camshaft · worn(CAN) DURING ENGINE ROCKER VALVES INSPECTION, NR 4 CYLINDER INTAKE VALVE LIFT WAS FOUND VERY LOW. THE CYLINDER WAS REMOVED AND CAMSHAFT INTAKE VALVE LOBE WAS FOUND WORN. THE ENGINE WAS REMOVED FROM THE AIRCRAFT AND SENT FOR REPAIR.SDR CA020312008Crankcase · damaged(CAN) DEFECT OBSERVED DURING ROUTINE MAINTENANCE. OIL LEAKING FROM CRANKCASE LT HALF NEAR CENTRE BOLTS THAT SECURE CASES TOGETHER. FURTHER INSPECTION REVEALED A PIN HOLE THAT APPEARS TO ORIGINATE FROM WITHIN/INTERNAL TO THE CRANKCASE. ENGINE REMOVED SENT TO APSDR 2002FA0000586Connecting Rod · failedNR 2 CONNECTING ROD BOLT FAILED CAUSING CONNECTING ROD TO GO THROUGH CRANK CASE CAUSING MAJOR ENGINE FAILURE. ENGINE DESTROYED. TOP OF BOLT FAILED CAUSING ROD CAP TO BEND BACK AND EVENTUALLY FAIL. THREADED END OF THE BOLT FOUND IN BOTTOM OF ENGINE CASE IN GSDR CA020312002Camshaft · worn(CAN) METAL FOUND IN OIL FILTER DURING SCHEDULED MAINTENANCE. ENGINE DISMANTLED AT OVERHAUL FACILITY. NR 4 EXHAUST LOBE FOUND TO BE WEARING AFTER 85.2 HOURS SINCE NEW.SDR CA020304005Connecting Rod · failed(CAN) DURING A SHORT FLIGHT APPROXIMATLY 5 MINUTES. AFTER T/O, PILOTS NOTICED A FAINT CLICKING NOISE FOLLOWED IMMEDIATLY BY A SLIGHT VIBRATION THEN SMOKE FROM THE LT ENGINE. THE ENGINE WAS SHUT DOWN AND FEATHERED IMMEDIATLY. AFTER LANDING VISUAL INSPECTION COSDR AUS20020145Camshaft · failed(AUS) CAMSHAFT LOBE FAILED. METAL CONTAMINATION OF OIL SYSTEM. OILPRESSURE RELIEF VALVE OFF SEAT. LOW OIL PRESSURE LED TO BEARING FAILURE AND SUBSEQUENT ENGINE SEIZURE.SDR 2002FA0000317Bearing · failedDURING A REGULER OIL CHANGE INTERVAL. METAL CONTAMINATS WER NOTED IN THE FOLDS OF THE OIL FILTER. THEY APPEARED TO BE OF ALUMINUM. FURTHER INVESTIGATION INTO THE PICK UP SCREEN FOUND A LARGER AMOUNT OF DEBRIS. SIZE OF THE DEBRIS APPEARED TO BE AROUND 1/16 OF ASDR ISP2002F00000Piston · failedNR 2 PISTON FAILED AT TAKE OFF UNDER FULL POWER.SDR CA020322010Roller · galled(CAN) PN 5999 ROLLER STARTED GALLING. LEFT SMALL STEEL FLAKES ON OIL SCREEN WHICH WERE FOUND AND IDENTIFIED DURING INSPECTION. ENGINE NOSE CASE REMOVED, AND CAM RING PN 11768 REMOVED FOR RECONDITIONING.ALL 5999 ROLLERS REPLACED AS A PRECAUTION.IF PROBLEM HADSDR AUS20020277Bearing · failed(AUS) CONNECTING ROD BEARINGS AND MAIN BEARINGS LOOSING WHITE-METAL.METAL CONTAMINATION OF OIL FILTER.SDR CA020227003Bearing · destroyed(CAN) #6 CON ROD BEARING FAILURE. PARTS RETURNED TO SUPERIOR AIR PARTS FOR EXAMINATION.THESE BEARINGS ARE A BIMETAL AS OPPOSED TO A TRIMETAL THAT WAS USED FOR MANY YEARS. I HAVE RECIEVED REPORTS FROM AUSTRALIA OF SEVERAL FAILURES OF THIS TYPE OF BEARINGSDR 2002FA0000209Sleeve · separatedLIFTER BORES WERE SLEEVED (12 EA) NOTE: SLEEVES CAME LOOSE IN ALL HOLES (EXCEPT 2), ROTATING AND BLOCKING OIL PASSAGE. NO SAFETY PINS IN PLACE TO MAINTAIN SECURITY OF SLEEVES, NO OTHER MEANS OF HOLDING SLEEVES IN PLACE. ONLY THING THAT APPEARED TO HOLD SLEEVESSDR 2004FA0000627Crankcase · crackedTHE TURBOCHARGER ATTACHES TO THE ENGINE RT CRANKCASE, THROUGH A 21 INCH MOUNTING BRACKET, WHICH ATTACHES TO THE RT AFT ENGINE MOUNT. DURING A ROUTINE 100 HR INSPECTION, A .75 INCH CRACK WAS FOUND ON THE RT CRANKCASE HALF, RT AFT ENGINE MOUNT ATTACH. IT APPEASDR 2004FA0000626Crankcase · crackedTHE TURBOCHARGER ATTACHES TO THE ENGINE RT CRANKCASE, THROUGH A 21 INCH MOUNTING BRACKET, WHICH ATTACHES TO THE RT AFT ENGINE MOUNT. DURING A ROUTINE 100 HR INSPECTION, A 1.75 INCH CRACK WAS FOUND ON THE RT CRANKCASE HALF, RT AFT ENGINE MOUNT ATTACH. IT APPESDR AUS20020048Connecting Rod · failed(AUS) RH ENGINE INTERNAL FAILURE. INSPECTION FOUND HOLES IN THE FORWARD END OF THE CRANKCASE IN THE AREA OF NO5 AND NO6 CYLINDERS. ON DISASSEMBLY MASSIVE INTERNAL DAMAGE FOUND. CONNECTING ROD FOUND IN SUMP. CAMSHAFT BROKEN. SUSPECT CONNECTING ROD OR CONNECTINGSDR 2002FA0000204Crankcase · crackedCRANKCASE FAILED NEAR NR 2 CYLINDER, CRACKED FROM IN FRONT OF CYLINDER RADIALLY BELOW AND AROUND TO THE REAR OF THE CYLINDER. CRACK EXTENDS MORE THAN 180 DEGREES, ALL 3 UPPER CYLINDER BASE STUDS AND UPPER CRANKCASE THRU BOLT WERE ALL BROKEN. THE ONLY THING SDR 2002FA0000230Pushrod · crackedON ANNUAL INSPECTION OF THE LT ENGINE (TOTAL TIME 3197.9) THREE PUSH RODS WERE NOTED TO BE CRACKED ALONG ALMOST THE ENTIRE LENGTH OF THE PUSHRODS EXTENDING FROM THE VERY TOP. PUSHRODS REPLACED WITH NEW AND 9 OVERHAULED. BECAUSE OF THIS FINDING ALL 12 PUSHRODSDR AUS20020008Bearing · delaminated(AUS) ENGINE NO1 MAIN BEARING DELAMINATED. METAL CONTAMINATION OF OIL FILTERS.SDR EEJ2002F00000Piston · failedAIRCRAFT WAS IN CRUISE, WHEN PILOT NOTICE MANIFOLD GO DOWN AND OIL COMING OUT OF ENGINE. 1) ON INSPECTION NR 4 CYLINDER HAD NO COMPRESSION. 2) PISTON HAD BROKEN RINGS TOP TWO PISTON WAS MELTED DOWN SIDE FROM CYLINDER GASES WHERE THE HING WHERE BROKEN.SDR AUS20011373Bearing · delaminated(AUS) ENGINE NO1 MAIN BEARING DELAMINATED. METAL CONTAMINATION OF OIL FILTER.SDR AUS20011411Crankshaft · sheared(AUS) ENGINE CRANKSHAFT SHEARED AT NO6 BEARING JOURNAL. INTERNAL DAMAGE TO ENGINE.SDR CA020219001Camshaft · worn(CAN) IN THE PROCESS OF PREFORMING A CYLINDER CHANGE, THE MECHANIC WAS UNABLE TO GET THE REQ'D VALVE CLEARANCE WITH THE APPLICABLE PUSHROD LENGHTS. UPON REMOVAL OF THE CYLINDER AND FURTHER INVESTIGATION, IT WAS DETERMINED THAT THE CAM LOBE WAS TOO WORN TO ALLOSDR AUS20011379Bearing · delaminated(AUS) NO3 MAIN BEARING SHELL DELAMINATED AND SHEDDING LARGE FLAKES OF BEARING MATERIAL. METAL CONTAMINATION OF OIL FILTER. BEARING HADA MANUFACTURERS STAMP (ML-KS) DATE 2-00.SDR 2002FA0000267Piston · failedCASTROSPHOIC ENGINE FAILURE AFTER TAKEOFF. EMERGENCY LANDING WAS EXECUTED WITHOUT INCIDENT. ENGINE WAS DISASSEMBLED, REVEALING NR 5 PISTON DISINTEGRATED. ENGINE HAD BEEN OVERHAULED APPROXIMATELY 280 HOURS AND 3.5 YEARS PRIOR TO FAILURE. ALL PISTONS HAD BEESDR CA011217018Camshaft · worn(CAN) DURING SCHEDULED 50 HOUR INSPECTION THAT CONTAINED TASKS REQUIRED TO COMPLY WITH THE ENGINE ON THE CONDITIONS PROGRAM ESTABLISHED FOR THE ENGINE BEING INSPECTED, A MODERATE AMOUNT OF VERY SMALL METAL PARTICLES WERE FOUND IN THE OIL FILTER ELEMENT DURING SDR CA011210012Connecting Rod · failed(CAN) THE A/C WAS ESTABLISHED IN CRUISE WHEN THE PILOT NOTICED ENGINE VIBRATION FOR APPROXIMATELY 5 SECONDS. THIS WAS FOLLOWED BY AN ABRUPT ENGINE STOPPAGE. THE PILOT SAFELY GLIDED TIME A/C TO A NEARBY RIVER. UPON ENGINE TEARDOWN THE NR 1 & 2 CONNECTING RODS WSDR 2002FA0000021Connecting Rod · failedNUMBER THREE CYLINDER CONNECTING ROD AND CAP FAILED AT CRANKSHAFT. THE CONNECTING ROD THEN FELL DOWN TO THE BOTTOM OF THE CYLINDER BORE AND WAS STRUCK REPEATEDLY BY THE CRANKSHAFT UNTIL ENGINE WAS SHUTDOWN. THE FAILURE OCCURRED AFTER FINAL POWER REDUCTION DUSDR 2001FA0000589Crankshaft · brokenCRANKSHAFT BROKE IN 3 SECTIONS, HAD 595.9 SMOH. NO SIGNS OF OIL STARVATION.SDR 2001FA0000576Crankshaft · failedCONFIRMED BY ENGINE MANUFACTURER-ENGINE CRANKSHAFT FAILED AT NR 5 CRANKPIN.SDR 2003FA0000324Bushing · mismanufacturedWHILE CHECKING THE SIZE OF THE NEW MFG SA639193 BUSHINGS PRIOR TO INSTALLATION IN THE COUNTERWEIGHTS I FOUND TWO NEW STANDARD SIZE BUSHINGS THAT WERE APPROXIMATELY .002 SMALL IN THE OUTER DIAMETER.SDR 2001FA0000557Crankshaft · failedIN FLIGHT ENGINE FAILURE, CRANKSHAFT COUNTERWEIGHT AND DOUBLE ROD FAILURE, BLEW TWO ROD THROUGH CASE.(K)SDR ERY2001F00000Crankcase · crackedENGINE OIL LEAK, FOUND 3 INCH LONG CRACK IN CRANKCASE ABOVE NR 3 CYLINDER, CRACK SEEMS TO ORIGINATE FROM UPPER CASE LEFT AND EXTEND DOWNWARD.
Back to JASC 8520