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 2004FA0000305Rod Bearing · delaminatedENGINE EXPERIENCED FAILURE OF CONNECTING ROD BOLT, PN 74644 OR DELAMINATION OF CONNECTING ROD BEARING, PN SL 13521 IN NR 6 CONNECTING ROD POSITION. NOT SURE WHICH CAUSED THE FAILURE OF THE ENGINE. A ROD BEARING HALF WAS FOUND IN THE SUMP, MANGLED BUT INTACTSDR CSL2004F00000Thru Bolt · brokenDURING 100 HOUR INSPECTION, FOUND CRANKCASE THRU BOLT BROKEN AT LOWER FORWARD NR 2 CYLINDER.SDR FPI2004F00002Crankcase · crackedRT CASE CRACKED AT CYLINDER NR 1. 7TH STUD LOWER RECESS IN CASE.SDR AUS20040217Gear · failed(AUS) CRANKSHAFT IDLER GEAR FRACTURED. DAMAGE CAUSED TO SHAFT SUPPORT HOLE IN CRANKCASE. METAL CONTAMINATION OF OIL SYSTEM.SDR CA040426006Bolt · failed(CAN) DURING ASSEMBLY OF ENGINE, A NEW SUPERIOR CONNECTING ROD BOLT, P/N SL75060 AND LOT NR 574065 WAS BEING USED. FOUND THAT THIS BOLTS MACHINING WAS INADEQUATE AND ALREADY WITHIN THE STRETCH LIMITS OF 2.255 - 2.256 INCHES WITHOUT A LOAD ON BOLT.SDR AKG2004F00006Nut · looseWHILE COMPLETING AN ANNUAL INSPECTION. ONE OF THE CYLINDER RET BASE NUTS FOR THE NR 4 CYLINDER WAS MISSING. NUT WAS FOUND BETWEEN CYLINDER. TORQUE CHECK MADE OF THE OTHER NUTS FOUND 3 MORE LOOSE. WE CHECKED THE OTHER CYLINDER AND FOUND THEN TO BE OK. ALL SDR 2004FA0000315Piston · meltedNR 3 PISTON/ CYLINDER MELTED.SDR 2004FA0000671Crankshaft · making metalENGINE WAS DISASSEMBLED AND INSPECTED. INSP REVEALED METAL CONTAM OF CRANKSHAFT MAIN, CONNECT ROD BRG INSERTS. ENGINE WAS REASSEMBLE WITH NEW BRG INSERTS AND REPLACEMENT STARTER ADAPTER, WHICH WAS DISASSEMBLED AND INSP BEFORE INSTALLATION ON ENGINE. DISCREPSDR CA040311010Lifter · spalled(CAN) DURING A ROUTINE INSPECTION, METAL CONTAMINATION WAS DETECTED IN THE FULL FLOW OIL FILTER CARTRIDGE ELEMENT. THE LIFTER ASSEMBLIES WERE REMOVED NEXT TO DETERMINE THEIR CONDITION. THIS HAS BEEN A RECURRING PROBLEM ON THIS MODEL ENGINE. THE SURFACE OF THE SDR 2004FA0000663Crankshaft · failedDURING CRUISE PHASE OF FLIGHT, WHILE DEPARTING TRAFFIC PATTERN, AIRCRAFT EXPERIENCED SEPARATION FAILURE OF CRANKSHAFT WITH RESULTING LOSS OF PROPELLER, LOSS OF OIL AND SUBSEQUENT ENGINE FAILURE. ENGINE SPEED APPROX. 3100 RPM, 3700 FT MSL, AIRSPEED APPROX 104SDR AUS20040164Camshaft · spalled(AUS) LT ENGINE CAMSHAFT LOBE NR 2 BADLY SPALLED. METAL CONTAMINATION OF OIL SYSTEM.SDR 2004FA0000278Connecting Rod · brokenWHILE IN CRUISE FLIGHT, ENGINE STARTED TO RUN ROUGH, CATASTROPHIC ENGINE FAILURE OCCURED. PILOT MADE AN EMERGENCY LANDING, MINOR DAMAGE TO AIRCRAFT. INSPECTION OF FAILED ENGINE REVIELD A BROKEN NR 1, (ONE) CONNECTING ROD.SDR CA040220001Piston Ring · cracked(CAN) CYLINDER NR 4 REMOVED DURING 100 HR INSPECTION DUE TO OIL CONTAMINATED SPARK PLUG. TOP COMPRESSION RING FOUND IN SEVERAL PIECES EMBEDDED INTO PISTON. ALL CYLINDERS REMOVED FROM BOTH ENGINES, 8 TOTAL AND 3 OTHER PISTONS FOUND WITH CRACKED TOP COMPRESSION SDR CA040217005Bearing · failed(CAN) NR 5 CONNECTING ROD BEARING FAILED. BEARING FACE MATERIAL WAS BREAKING AWAY FROM BEARING. METAL CONTAMINATION WAS NOTED DURING PREFLIGHT CHECK. CONNECTING ROD BEARING HAD LOST APPROXIMATELY 15 PERCENT OF TOTAL SURFACE AREA. BOTH THE CRANKSHAFT AND IDLSDR AUS20040085Seal · worn(AUS) ENGINE CRANKSHAFT SEAL LEAKING. INVESTIGATION FOUND SEAL HAD DISINTEGRATED AROUND THE SEALING LIP. THIS IS A REPLACEMENT SEAL AFTER THE SEAL FAILURE IN MDR 04/0084.SDR AUS20040084Seal · worn(AUS) ENGINE CRANKSHAFT SEAL LEAKING. INVESTIGATION FOUND SEAL HAD DISINTEGRATED AROUND THE SEALING LIP.SDR 2004FA0000195Plug · looseDURING CLIMB OUT ENGINE RPM WOULD START CLIMBING AND THE PROP CONTROL HAD NO EFFECT ON REDUCING RPM. DURING TROUBLESHOOTING FOUND THE REAR CRANKSHAFT PLUG HAD COME LOOSE IN THE CRANKSHAFT ALLOWING OIL TO BYPASS BACK TO THE ENGINE SUMP. UNABLE TO DETERMINE THSDR 2004FA0000223Lifter · wornDURING A ROUTINE OIL CHANGE, WHILE COMPLYING WITH AD. MINUTE METAL PARTICLES WERE FOUND IN THE OIL FILTER WHEN IT WAS CUT OPEN FOR INSPECTION. HYDRAULIC LIFTERS WERE REMOVED FOR A MORE DETAILED INSP. THE ONE CAM LOBE FOR NR 3 AND NR 4 CYLINDERS HAD PLATING SDR 2004F00215Connecting Rod · brokenENGINE FAILED IN FLIGHT FROM HNL TO MKK, NR 1 CYL CONNECTING ROD BROKE OFF AT FLT ALT. 1,500 FEET 27 INCHES OF MANIFOLD, 2300 RPM. AIRCRAFT RETURNED TO HNL. (M)SDR CA040216005Connecting Rod · worn(CAN) ENGINE WAS CONTAMINATED. ABNORMAL WEAR WAS DETECTED ON FOUR CONNECTING RODS CAUSING METAL CONTAMINATION. DEMARCATION WAS ALSO NOTED ON CRANKSHAFT. AFTER COMPLETING A THOROUGH INSP (MEASUREMENT OF INTERNAL BUSHINGS, A TORSION, PARALLELISM, INSPECTION OFSDR 2004FA0000057Piston · brokenENGINE OVERHAULED. REBARRELED CYL, ECI PISTONS. LOSS OF OIL PRESSURE, 260 STOH, 1043 SMOH. CAUSE, BROKEN NR 2 PISTON, PARTS BLOCKING OIL PICKUP SCREEN. POSSIBLE CAUSES. DEFECTIVE PISTON CASTING, DROPPED PISTON OR IMPROPERLY MACHINED NR 4 RING GROOVE, SQUASDR 2004FA0000055Piston · brokenREBARRELED CYL, ECI PISTONS. LOSS OF OIL PRESSURE, 260 STOH, 1043 SMOH. CAUSE, BROKEN NR 2 PISTON, PARTS BLOCKING OIL PICKUP SCREEN. POSSIBLE CAUSES. DEFECTIVE PISTON CASTING, DROPPED PISTON OR IMPROPERLY MACHINED NR 4 RING GROOVE, SQUARE CUT BOTTOM OF GROSDR CA040310005Camshaft · worn(CAN) CAMSHAFT LOBES AND LIFTERS WEARING PREMATURALLY.SDR 2004FA0000032Plug · looseSENT CRANKSHAFT FOR ULTRASONIC AND MAGNAFLUX INSP. REMOVED OIL TRANSFER PLUG FROM CRANKSHAFT AS PART OF INSP. PLUG WAS REINSTALLED INTO CRANKSHAFT BEFORE RETURNING. APPROX. 70 HRS AFTER REPAIR, PROP WOULD NOT CYCLE AT NORMAL RUN-UP. WHEN PILOT APPLIED POWSDR 2004FA0000013Rod · brokenAPPEARS THAT ROD (PN A8268) BROKE JUST ABOVE A921-1 ROD FORK. SUBSEQUENT INVESTIGATION BY PROP REPAIR STATION DID NOT FIND ANY MISALIGNMENT OF GUIDE COLLAR RODS DO NOT APPEAR TO BE BENT OR DAMAGED. COULD NOT FIND ANY REASON FOR ROD TO FAIL.SDR 2004FA0000030Piston · failedTHE PISTON IN NR 4 CYLINDER SEPARATED AT THE PISTON PIN BOSS AREA ALLOWING THE CONNECTING ROD END TO PROTRUDE THROUGH THE ENGINE CASE AND THE COWLING. THE CYLINDER HAD THE CERMINIL PROCESS PERFORMED ON IT IN APRIL 14,2000 BY THE ECI (ENGINE COMPONENT INC.).THESDR 2004FA0000061Master Rod · crackedCRACK-LIKE INDICATION DETECTED BETWEEN WELD AND HOLE 2 AND END OF ROD. FLUORESCENT PENETRANT INSPECTION AND MT INSPECTION USED.SDR CA031217002Ring · failed(CAN) REPORTED ENGINE BACKFIRING AT LOW RPM. CARRIED OUT COMPRESSION TEST ON ALL FOUR CYLINDERS. COMPRESSIONS WERE AS FOLLOWS, NR 1 70/80, NR 2, 72/80, NR 3, 60/80, NR 4, 74/80. REMOVED NR 3 CYLINDER AND FOUND MARKS IN CYLINDER AND RINGS WERE EXCESSIVELY SHARSDR AUS20031310Bearing · delaminated(AUS) CONNECTING ROD BIG END BEARING DELAMINATED.SDR TZR2004F00003Crankcase · crackedPILOT REPORTED A HARD DOWNDRAFT (REPORTED THAT HE HIT HIS HEAD ON CEILING) APPROX 20 SECONDS LATER NR 2 ENGINE LOST POWER AND HE SHUT THE ENGINE DOWN. HE LANDED WITHOUT INCIDENT. INSPECTION OF THE ENGINE IN HANGAR REVEALED A CRACKED CASE UPPER SIDE BY NR 5 CSDR XGN2004F00001Camshaft · brokenAIRCRAFT WAS ENROUTE, PIC NOTICED THE AIRCRAFT YAWING WAY TO THE RIGHT. THERE WAS NOT ANY LOSS OF OIL OR FUEL PRESSURE NOR ANY VIBRATION. THE PILOT SHUT THE ENGINE DOWN AND LANDED. THE OIL PAN WAS REMOVED AND FOUND THE CAMSHAFT WAS BROKEN. HAVE NO IDEA WHASDR 421C120803Crankcase · crackedAT ROUTINE 50 HOUR OIL CHANGE, MAINTENANCE PERSONNEL NOTICED OIL RT ENGINE CYLINDER BASE. VISUAL INSPECTION INDICATED CRACK BETWEEN NR 1 AND NR 3 CYLINDERS IN CRANKCASE WEB STRUCTURE.SDR AUS20031163Tappet · cracked(AUS) HYDRAULIC LIFTERS (2 OFF) CRACKED. TAPPETS WERE NEW ITEMS.SDR AUS20031151Piston · cracked(AUS) PISTON PN 646311 CRACKED IN BOSS. PISTON PIN PN 643846 BROKEN.SDR WVB2003F00001Crankshaft · brokenON APPROACH, ON 10 NOVEMBER 2003, THE PILOT NOTICED FUEL FLOW FLUCTUATIONS AND AN ABRUPT LOSS OF OIL PRESSURE ON THE LT ENGINE AND IMMEDIATELY SHUT THE ENGINE DOWN. PILOT CONTINUED FLIGHT AND LANDED SAFELY WITHOUT FURTHER INCIDENT. PILOT IMMEDIATELY REPORTEDSDR AUS20031144Tappet · cracked(AUS) TAPPET INNER BODIES CRACKED (8OFF).SDR AUS20031145Tappet · cracked(AUS) TAPPET INNER BODIES CRACKED (8OFF).SDR CA031114005Thru Bolt · leaking(CAN) SMOKE IN CABIN. OIL LEAK ON FRONT OF ENGINE, LEADKED OIL DOWN BAFFLE TO HEAT MUFF INLET. OIL DRIPPED INSIDE HOT MUFFLER CREATING SMOKE. 2 FORWARD CRANK CASE THROUGH BOLTS FOUND LEAKING. REPAIRS ARE NOT COMPLETED YET, 4 NOV. 03.SDR 2003FA0001168Connecting Rod · brokenIT APPEARED NR 3 CONNECTING ROD FAILED DUE TO OIL STARVATION, CAUSING ROD TO BREAK AT CAP. THE ROD THEN HIT CRANKCASE CAUSING A HOLE IN CRANKCASE AND CAUSED THE CRANKSHAFT TO SEIZE. WHILE REMOVING ENGINE FROM AIRCRAFT, DRAINED 2 QTS OF OIL OUT OF OIL PAN.SDR BSY2003F00027Crankshaft · failedLT ENGINE SHUT DOWN IN FLIGHT, FEATHERED ENGINE. RETURNED TO (CMH). CRANKSHAFT FAILED IN NR 1 AND NR 2 PISTONS NOT MOVING IN CYLINDERS.SDR 2003FA0001167Oil Ring · brokenAIRCRAFT WAS IN FLIGHT WHEN THE PILOT NOTICED HIGH CHT TEMPS AND LOW EGT TEMPS ON NR 3 CYLINDER ON HIS JPI ENGINE ANALYZER. HE THEN NOTICED HIS OIL TEMP GO UP AND AS THE OIL PRESSURE DROPPED THE OIL TEMP THEN BEGAN TO DROP OFF. HE THEN PULLED THE POWER OFF ASDR Z372003F00002Crankshaft · brokenPILOT FLEW A/C IN FOR GENERATOR REPAIR AND REPORTED TO MAINT THAT THE ENGINE WAS MAKING A CLUNKING NOISE. UPON FURTHER INVESTIGATION WITH A BORESCOPE THE CRANK SHAFT WAS FOUND TO BE BROKE AT APPROX. THE NR 6 PISTON CONNECTING ROD JOURNAL. ENGINE HAS NOT YETSDR 2003FA0001126Screw · brokenSB NR 126, 41.146, HAD NOT BEEN COMPLIED WITH. THE SAFETY WIRE LOCKING THE KNUCKLE PIN LOCKPLATE SCREWS HAD BROKEN, ALLOWING THE KNUCKLE PINS TO BACK OUT OF THE MASTER ROD. THE TOPS OF THE KNUCKLE PINS WERE MACHING INTO THE CAMSHAFT. FAILURE WAS IMMINENT. SDR RAG2003F00000Screw · brokenSB NR 126, 41.146 HAD NOT BEEN COMPLIED WITH. KNUCKLE PINS BACKED OUT OF THE MASTER ROD, HIT THE CRANKSHAFT AND CAUSED A CATASTROPHIC ENGINE FAILURE. CRANKSHAFT SEIZED AND BROKE JUST AFT OF THE PROPELLER. PROPELLER DEPARTED THE AIRCRAFT AND PILOT WAS FORCEDSDR 2003FA0001125Screw · looseSB NR 126, 4/1/46, HAD NOT BEEN COMPLIED WITH. KNUCKLE PINS HAD BACKED OUT OF THE MASTER ROD AND HAD BEEN MACHING INTO THE CRANKSHAFT. ENGINE WAS BEING REPAIRED FOR OTHER ISSUES WHEN THIS WAS DISCOVERED. FAILURE WAS IMMINENT. (SW15200402815)(K)SDR 2003FA0001184Connecting Rod · brokenFOUND NR 5 CYLINDER LT ENGINE DETACHED FROM THE CASE. ALL CYLINDER BASE STUDS AND THE THRU BOLTS BROKEN OR PULLED OUT OF CRANKCASE. PIECES OF THE CRANKCASE WERE ALSO BROKEN AWAY IN THE AREA OF THE CYLINDER MOUNTING BASE. BOTH ROD BOLTS WERE ALSO BROKEN AND SDR HLF2003F00001Crankcase · crackedCRACKED CRANKCASE AT NR 7 STUD, BETWEEN CYLINDERS NR 1 AND NR 3. CRACK IS ON CRITICAL AREA AND EXCEEDS THE MAX ALLOWED IAW SBM 90-17. PROBABLE CAUSE: OVERTORQUED NUT OR DEFECTIVE CRANKCASE. REPORTED TO MFG.SDR HLF2003F00000Crankcase · crackedCRACKED CRANKCASE AT NR 5 CYLINDER, CRACK IS 6 INCHES LONG, EXCEEDING THE MAX ALLOWED IAW SB 90-17. PROBABLE CAUSE: IMPROPER TORQUE OR DEFECTIVE CRANKCASE. REPORTED TO MFG.SDR 2003FA0001101Rod · destroyedON FINAL APPROACH, LEFT ENGINE, NR 5 ROD BROKE AND BROKE CRANKCASE.SDR 2004FA0000005Camshaft · spalledENGINE MAKING METAL, MFG DETERMINED IT TO BE CAMSHAFT/ LIFTER MATERIAL ENGINE RETURNED TO FACTORY FOR REPAIR. THIS IS THE SECOND OCCURRANCE OF CAMSHAFT/ LIFTER SPALLING AND 5TH OCCURANCE OF ENGINES MAKING METAL IN A FLEET OF 5. POSSIBLE MANUFACTURING AND MAT
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