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 2011FA0000702Crankcase · crackedCRANKCASE CRACKED JUST AFT AND ABOVE NR1 ALTERNATOR MOUNT AREA AND LEAKING.SDR U7Z2011F00000Connecting Rod · crackedREMOVED THE ENGINE FROM RT POSITION FOR SHIPMENT BACK DUE TO A DAMAGED CASE. DAMAGE APPEARS TO BE CAUSED BY A FAILED CONNECTING ROD THAT BROKE APART AND PUNCTURED 2 LARGE HOLES IN THE CRANKCASE. BRIEF HISTORY: 325.5 HRS PRIOR TO THE FAILURE OF ENGINE, STARTESDR CA111012007Piston · burned(CAN) ACFT DEPARTED ON A REGULAR TRAINING FLIGHT AFTER A NORMAL PRE-FLIGHT CHECK. SOON AFTER CLIMBOUT, THE CREW NOTICED ENGINE VIBRATION AND IT WAS NOT DEVELOPING FULL POWER. THE PILOT DECIDED TO RETURN TO THE AIRPORT AND LANDED WITHOUT INCIDENT. A POST-FLIGHSDR CA111006002Plug · worn(CAN) UPON 100 HR INSPECTION, FOUND METAL CONTAMINATION IN OIL FILTER AND INLET SCREEN. NON-FERROUS (ALUMINUM) SHINY SHAVINGS. DISCUSSION WITH LOCAL ENGINE O/H FACILITY LEADED TO INVESTIGATION OF CYLINDER REMOVAL AND CONFIRMATION THAT PISTON PIN PLUGS ON CYLISDR CA110928015Camshaft · worn(CAN) DURING ROUTINE VALVE TRAIN INSPECTION IT WAS NOTED THAT SEVERAL VALVE TRAIN CLEARANCES WERE AT THE UPPER LIMITS AND NR 4 EXHAUST VALVE LIMIT WAS APPROX 0.050" ABOVE UPPER LIMIT. THERE WAS NO SIGNIFICANT INDICATION OF METAL FOUND IN THE OIL FILTER ON INSSDR FXGAN6174CMaster Rod · brokenNR 4 ENGINE SHUTDOWN DUE TO FIRE WARNING INDICATION. FIRE EXTINGUISHED AND AIRCRAFT LANDED WITHOUT INCIDENT. NR 9 CYL WALL RUPTURED DUE TO BROKEN MASTER ROD CAUSING AN OIL FIRE. ENGINE QEC ASSEMBLY REPLACED NO DAMAGE TO THE AIRFRAME.SDR 2011FA0000593Piston Pin · missingBOTH PISTON PIN PLUGS WERE OMITTED FROM A CYLINDER DURING ENGINE ASSEMBLY AT THE FACTORY. DURING AN ANNUAL INSPECTION, THE COMPRESSION TEST INDICATED NO PRESSURE BEING HELD IN NR 4 CYLINDER. WHEN THE CYLINDER WAS REMOVED FOR REPAIR, THE PISTON PIN PLUGS WERESDR 2011FA0000669Connecting Rod · failedINSTALLED CRANKSHAFT KIT 05K23580 TO C/W AD 06-02-09 CRANKSHAFT RETIREMENT. KIT INCLUDES NEW CRANK, NEW BEARINGS, ROD BOLTS AND NUTS. NEW PISTON RINGS, SEAL AND GASKET SET. ENGINE TEST RAN AND TEST FLOWN. ENGINE RAN FOR APPROX 40 HRS OF TROUBLE FREE OPERATSDR 2011FA0000734Piston · mismanufacturedIMPROPER PISTON SKIRT MACHINING CAUSED PISTON CONTACT WITH CONNECTING ROD AND CRANK SHAFT. PISTON, PN 654857C. NEED IMPROVED QA IN MACHINING.SDR CA110817002Thru Bolt · failed(CA) DURING MX CRANKCASE & CYLINDER THRU BOLT BROKE AT AT AN ESTIMATED 10 FOOT POUNDS OF TORQUE.SDR 2011FA0000566Crankshaft · brokenCRANK BROKEN AT FLANGE. CAST CRANKSHAFT FAILURE.SDR CA110812002Main Bearing · damagedON INSPECTION OF THE OIL SCREEN IT WAS NOTICED THAT THERE WAS FOREIGN MATERIAL IN THE OIL SCREEN. THIS MATERIAL WAS TAKEN TO AN O/H SHOP FOR ANALYSIS. WE WERE INSTRUCTED TO PULL 1 CYLINDER AND LOOK AT THE THE MAIN BEARING AND NOTICED THAT A PIECE OF IT WAS MSDR 2011FA0000585Crankshaft · brokenACFT LANDED AT AIRPORT WITH RT PROPELLER FEATHERED. PILOT STATED ENGINE QUIT SUDDENLY ABOUT 15 MILES NORTH OF AIRPORT. PILOT AUTHORIZED INSP TO DETERMINE PROBLEM. GROUND PERSONEL COULD NOT TURN ENGINE OVER WITH PROPELLER. OIL DRAINED AND FILTER INSPECTED. OILSDR CA100719006Lifter · broken(CAN) A LARGE PIECE OF METAL RESEMBLING THE TIP OF A VALVE GUIDE WAS FOUND INSIDE THE VALVE COVER ON ONE OF THE CYLINDERS DURING A ROUTINE INSPECTION. FURTHER INVESTIGATION WITH A BOROSCOPE CONFIRMED THAT PART OF THE HYD LIFTER BODY HAD BROKEN OFF AND FOUND ISDR 2011FA0000468Piston · unserviceableACFT MADE A PRECAUTIONARY LANDING DUE TO POWER LOSS AND VIBRATION IN POWERPLANT ON JUNE 15, 2011. A COMPRESSION CHECK SHOWED ZERO ON CYLINDER A4. UPON REMOVING THE CYLINDER BANK, THE PISTON WAS FOUND TO HAVE EXCESSIVE CARBON ON THE SIDES OF THE PISTON WITH TSDR CA110815016Master Rod · broken(CAN) SUDDEN POWER LOSS, ROUGH ENGINE, SHAKING 5 MIN AFTER TAKEOFF. REMOVED 1 CYLINDER & FOUND MASTER ROD BROKEN.SDR CA110621010Camshaft · wornINTAKE LOBE NR 1 IS ALMOST COMPLETELY WORN DOWN.SDR CA110623006Connecting Rod · crackedNORMAL TAKEOFF AND INITIAL CLIMB BUT CLIMB PERFORMANCE BEGAN TO DECREASE THROUGH 6000 FT. POWER WAS BROUGHT BACK TO 16 INCHES MP AT 8000 FT, RPM TO 2200. ENGINE THEN BEGAN TO RUN VERY ROUGH AND THERE WAS A DECREASE IN OIL PRESSURE AS JUMPERS EXITED THE ACFT. SDR MLJG20010613Piston · brokenWHEN REMOVING RT ENGINE NR 4 CYLINDER DUE TO A CRACK, NR 4 PISTON SKIRT FOUND BROKE OFF AT THE 4TH RING LAND. ENGINE THEN REMOVED FROM ACFT FOR TEAR-DOWN INSPECTION. I HAVE FOUND BROKEN PISTON SKIRTS ON THIS PARTICULAR ACFT ON 3 DIFFERENT ENGINES.SDR CA110601006Lifter · wornWHILE TROUBLESHOOTING HIGH OIL CONSUMPTION THE OWNER DISCOVERED UNUSUAL WEAR ON NR 2 EXHAUST LIFTER. THE LIFTER CONTACT SURFACE WAS FOUND TO BE WORN WITH PITTING MARKS. 2 OF THE OTHER LIFTERS APPEAR NORMAL IN WEAR PATTERN WITH NO PITTING BUT THE REST OF THE LSDR 2011FA0000318Connecting Rod · failedLEVEL AT 2000 FEET, LOUD BANG AND ENGINE FAILED. AFTER LANDING IN A FIELD, INSPECTED ENGINE AND FOUND HOLE WHERE THE CONNECTING ROD END CAP HAD PENETRATED THE CRANK CASE.SDR CA110509011Piston Ring · worn(CAN) DURING AN INTERNAL INSPECTION OF THE ENGINE, WHEN THE PISTONS WERE REMOVED FROM THE CYLINDERS, EACH OF THE FACES OF THE TOP PISTON RINGS HAD STRIPS OF CHROME PLATING MISSING BETWEEN THE TOP AND THE BOTTOM OF THE RING AROUND APPROXIMATELY 70 PERCENT OF THSDR 2011FA0000347Bearing · spunENGINE BEGAN RUNNING EXTREMELY ROUGH AND PRODUCED ONLY PARTIAL POWER. MADE A PRECAUTIONARY LANDING WITHIN 5 MINUTES. ON TEARDOWN, DISCOVERED NR 2 MAIN BEARING HAD SPUN AND CUT OIL TO NR 3 ROD BEARING WHICH OVERHEATED. NR 3 AND NR 4 RODS SEPARATED FROM CRANKSDR 2011FA0000324Camshaft · mismanufacturedGOVERNOR GEAR NOT CUT CORRECTLY.SDR 2011FA0000362Connecting Rod · separatedLEVEL AT 2000', HEARD LOUD BANG AND ENGINE QUIT. MADE OFF AIRPORT LANDING. VISUAL INSPECTION OF ENGINE CRANK CASE REVEILED THAT A CONNECTING ROD HAD PENETRATED THE CRANKCASE HOUSING.SDR CA110517002Camshaft · making metalINSPECTION OF OIL FILTER DURING ROUTINE MX REVEALED SMALL FERROUS METAL PARTICLES THAT WARRANTED FURTHER INVESTIGATION RESULTING IN THE REMOVAL OF NR 1 CYLINDER. IT WAS DISCOVERED THAT THE NR1 INTAKE TAPPET WAS SEVERELY GALLED. THE ENGINE WAS REMOVED FOR REPASDR 2011FA0000290Crankshaft · crackedFOUND CRACK INDICATION DURING MAG-PARTICLE INSP ON CRANKSHAFT FLANGE AREA.SDR 2011FA0000246Crankshaft · brokenDURING A FLIGHT TRAINING FLIGHT THE INSTRUCTOR SAID THEY WERE COMMING OUT OF A STALL AND THE ENGINE LOST POWER AND STOPPED RUNNING. AFTER LANDING, REMOVED COWL AND SPARK PLUGS NOTED THAT CYLINDERS 3 AND PISTONS MOVED AND CYLINDERS 1 AND 2 PISTONS DID NOT MOVESDR CA110411004Thru Bolt · sheared(CAN) DURING ROUTINE MX, THE ENG COWLS WERE OPENED & THE SHEARED SECTION OF THE ENG CRANKCASE THRU BOLT WITH THE NUT STILL ATTACHED, FELL OUT OF THE ENG COWLING. THE SHEARED THRU BOLT WAS LOCATED AT THE FLANGE OF THE NR 6 CYLINDER ASSEMBLY.SDR 2011FA0000273Piston · crackedWHILE PERFORMING A CONDITION INSPECTION OF THE ENGINE, A CRACK WAS FOUND ON NR 6 INTAKE AREA. AFTER REMOVAL OF CYLINDER, THE PISTON WAS FOUND TO HAVE A LARGE PART OF THE SKIRT MISSING, PLUS A BROKEN OIL CONTROL RING AND CRACKS NEAR THE PISTON PIN AREA. METALSDR F472011F00000Case · cracked10 MILES FROM LANDING, PILOT REPORTED RT ENG ROUGH AFTER TROUBLESHOOTING WITH MAG, FUEL AND PUMPS. NOTICED OIL FROM ACCESS DOOR. ENGINE WAS FEATHERED AND SECURED. MX FOUND CRACKED CASE STARTING AT NR 5 CYLINDER. TOP FWD BASE STUD TO FLOW DIVIDER. (THIS ISSDR 2011FA0000227Crankcase · crackedDURING AN UNSCHEDULED INSP AFTER A PILOT REPORT OF AN OIL LEAK IT WAS DISCOVERED THAT THE ENGINE'S RT SIDE CRANKCASE HAD A 4 IN CRACK EMANATING FROM THE ALTERNATOR 1 MOUNT STUD HOLE.SDR 2011FA0000416Crankshaft · corrodedSLINGER AREA IS HEAVILY CORRODED.SDR 2011FA0000175Crankshaft · corrodedENGINE WAS O/H 03/12/05, AT THAT TIME SB530B WAS C/W. ENGINE IS NOW HERE FOR O/H AND UPON INSP OF CRANKSHAFT BORE (AFTER CLEANING AND REMOVAL OF OLD PID COATING) SHOWS SUBSTANTUAL PITTING IN BORE. CRANKSHAFT REJECTED, RED TAGED. I HAVE SEEN THIS PROBLEM MANY SDR CA110309008Crankcase · leaking(CAN) UPON SCHEDULED INSPECTION OF RT ENGINE, AN OIL LEAK WAS NOTICED NEAR THE PROP GOVERNOR ON THE ENGINE. THE LEAK WAS TRACED BACK TO A CRACK IN THE ENGINE "CRANKCASE" TSO ON ENGINE 40.0 HOURS. OVERHAULED IN FEB 2011. NO ABNORMAL EVENTS WERE REPORTED IN THSDR 2011FA0000198Counterweight · wrong partFACTORY NEW ENGINE AT DISASSEMBLY HAD 3 EA 639195 COUNTERWEIGHT AND 1 EA 639196 COUNTERWEIGHT INSTALLED. SB00-3 STATES THAT 2 EA 639195 AND 2 EA 639196 COUNTERWEIGHTS ARE REQUIRED.SDR CA110222006Crankshaft · corroded(CAN) DURING A COMPANY DIRECTED 2 YEAR INSPECTION OF THE ID OF THE CRANKSHAFT IAW SB 505B, PITTING WAS DISCOVERED AND FOUND TO BE 0.082" DEEP. CRANKSHAFT HAS BEEN INSPECTED AND PITTING REMOVED AND STILL FOUND TO BE IN LIMITS. THE OPTIONAL REAR PLUG HAS BEEN SDR 2011FA0000233Gear · crackedDURING MAG PARTICLE INSP, DISCOVERED CRACK RUNNING FROM ROOT OF OUTSIDE GEAR TO ROOT OF INSIDE GEAR CONTINUING TO FADEC TIMING HOLE IN GEAR DISC. OF 3 GEAR OF THIS PN INSPECTED WITHIN THE LAST 2 WEEKS, 2 HAVE EXHIBITED IDENTICAL CRACKS. THIS PN WITH FADEC TISDR 2011FA0000232Gear · crackedDURING MAG PARTICLE INSP, DISCOVERED MULTIPLE (3) CRACKS RUNNING FROM ROOTS OF OUTSIDE GEAR TO ROOTS OF INSIDE GEAR CONTINUING TO FADEC TIMING HOLES IN GEAR DISC. OF 3 GEARS OF THIS PN, INSPECTED WITHIN LAST 2 WEEKS, 2 HAVE EXHIBITED IDENTICAL CRACKS. THIS PSDR PNYA20110216001Crankshaft · brokenCRANKSHAFT BROKE IN FLIGHT BETWEEN NR 3 & 4 CYLINDERS FORCING AN UNSCHEDULED LANDING.SDR CA110222004Crankshaft · corroded(CAN) THE FRONT PLUG WAS REMOVED FOR A COMPANY DIRECTED 2 YEAR CORROSION INSPECTION OF THE ID OF THE CRANKSHAFT IAW SB 505B. THIS INSPECTION WAS BEING COMPLETED DUE TO PITTING PROBLEMS FOUND IN THE PAST, DESPITE THE CRANKSHAFT BEING COATED AND LABLED PID. THSDR CA110211010Crankcase · crackedDURING ACCOMPLISHMENT OF AN AD 77-13-22, INSPECTED CRANKCASE FOR CRACKS, A CRACK WAS DISCOVERED IN THE CRITICAL INSP AREA DIRECTED BY THE AD. CRACK WAS APPROX 1 INCH IN LENGTH.SDR CA110211003Breather Tube · icedSHORTLY AFTER TAKEOFF, PILOT NOTICED SMOKE COMING IN THE COCKPIT AND REQUESTED AN IMMEDIATE LANDING. AFTER LANDING, MX CAME AND SAW THAT THE FRONT OF THE ENGINE WAS COVERED IN OIL AND DETERMINED THAT CRANKSHAFT SEAL HAD DISLODGED ALLOWING OIL TO LEAK OUT AND SDR SVVA03082001Main Bearing · failedFOUND PARTICLES IN OIL FILTER. FURTHER SEARCHING FOR PROBLEM FOUND MAIN BEARING PARTS IN OIL PAN.SDR CA110222005Crankshaft · corroded(CAN) A COMPANY DIRECTED 2 YEAR INSPECTION OF THE ID OF THE CRANKSHAFT IAW SB 505B WAS COMPLETED AND PITTING WAS DISCOVERED. THE ID IS NOW AT MAX LIMITS AND PITTING REMAINS AND AN NDT INSPECTION WAS COMPLETED AND WILL BE COMPLETED EVERY 100 HRS AS REQUIRED IASDR 2011FA0000137Camshaft · brokenDURING CRUISE PHASE OF FLIGHT AT NIGHT, PILOT REPORTED THAT THE AIRCRAFT ENGINE SURGED AND LOST POWER. ATTEMPTED TO RESTART WITH NO SUCCESS. PILOT DEPLOYED THE AIRCRAFT PARACHUTE AND LANDED IN A FIELD. ON ENGINE TEARDOWN, IT WAS NOTED THAT THE CAMSHAFT HAD BROSDR 2011FA0000099Gear · fracturedWHILE THE ACFT WAS IN FOR MX, WHILE ATTEMPTING TO START THE ENGINE, A METAL GRINDING NOISE WAS HEARD BY THE MECHANIC. SUBSEQUENT REMOVAL OF THE STARTER ADAPTER REVEALED AT LEAST 2 TEETH MISSING ON THE CRANKSHAFT GEAR AND MARRED TEETH ON THE ADAPTER. THIS CONSDR 2011FA0000024Lifter · spalledACFT WAS IN FOR INSP AND THE MECHANIC CUT THE OIL FILTER OPEN TO CHECK FOR METAL, THERE WAS METAL IN THE OIL FILTER. THE ENGINE WAS SENT TO US FOR A METAL CONTAMINATION INSP, UPON OUR FINDINGS THERE WERE SEVERAL LIFTER BODIES THAT WERE BADLY SPALLED.SDR 2011FA0000022Lifter · spalledTHE ENGINE HAD A CYLINDER ISSUE, THE MECHANIC CHECKED THE ENGINE FOR METAL IN THE OIL FILTER. THE FILTER HAD METAL IN IT, THE ENGINE WAS SENT TO OUR FACILITY FOR A TEARDOWN INSP. UPON THE TEARDOWN INSP OUR FINDINGS WERE THAT: 4 LIFTERS WERE BADLY SPALLED WHICHSDR CA110225007Crankshaft · corroded(CAN) DURING A COMPANY DIRECTED 2 YEAR INSPECTION OF THE ID OF THE CRANKSHAFT TO BE COMPLETED IAW SB 505B. DURING THE INSPECTION IT WAS DISCOVERED THAT THE ID WAS CORRODED. THE SB FOR A CORRODED CRANKSHAFT WAS COMPLETED AND THE PITTING WAS THEN REMOVED. THE
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