JASC 8520
Service difficulty reports · 2,214
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 98ZZZX2598Stud · failedCYLINDER HOLD DOWN STUD BROKE UNDER NUT. SUSPECT DEFECTIVE STUD.SDR CA980706004Case · fractured(CAN) AFTER TAKEOFF WITH CRUISE POWER SELECTED, THERE WAS SEVERE VIBRATION FROM THE LEFT HAND ENGINE. SMOKE, FLAMES, AND OIL WERE SEEN COMING FROM THE ENGINE COWLING. THE ENGINE WAS SHUT DOWN. POST-FLIGHT INSPECTION FOUND THERE WERE TWO HOLES IN THE UPPER ESDR CA980623020Crankshaft · bent(CAN) A HEAVY ENGINE VIBRATION, DURING GROUND OPERATIONS, WAS REPORTED. INSPECTION REVEALED THE CRANKSHAFT WAS OVER TOLERANCE PER THE MANUFACTURER'S OVERHAUL MANUAL.SDR 98ZZZX2444Crankcase · crackedWHILE INVESTIGATING OIL LEAK, FOUND ENGINE CASE CRACKED RT FORWARD AFT BOSS WHERE ALTERNATOR BRACKET ATTACHES. ENGINE IS LYCOMING FACTORY OVERHAUL, INSTALLED 8-30-97, 340 HRS SMOH.SDR CA980707018Rod · worn(CAN) DURING INSPECTION, ACTUATOR INSTALLED ON NR 1 ENGINE FOUND LEAKING. SHOP REPORT FOUND PISTON ROD AND HOUSING ATTACH BUSHINGS WORN BEYOND LIMITS. COMPONENT OVERHAULED AND RETURNED TO STOCK SERVICEABLE.SDR CA980610017Crankshaft · corroded(CAN) FOUND CORROSION IN THE AREA (INNER BORE) OF THE CRANKSHAFT, AS SPECIFIED IN FAA AD 98-02-08, NO CRACKS FOUND. REPETITIVE INSPECTION IS REQUIRED.SDR CA980610016Crankshaft · corroded(CAN) FOUND CORROSION IN THE AREA (INNER BORE) OF THE CRANKSHAFT, AS SPECIFIED IN FAA AD 98-02-08, NO CRACKS FOUND. REPETITIVE INSPECTION REQUIRED.SDR CA980707015Pin · fractured(CAN) SHORTLY AFTER TAKEOFF, THE CREW NOTICED A POWER FLUCTUATION ON NR 1 ENG AND SELECTED THE BOOSTER PUMP ON TO STABILZE ENGINE, WITH NO IMPROVEMENT. ENG STARTED TO SURGE, LOSS OF MANIFOLD AND OIL PRESSURE. A SUBSTANTIAL AMOUNT OF OIL WAS COMING FROM THE ESDR 98ZZZX2273Camshaft Lobe · spalledDURING 100-HOUR INSPECTION AND INSPECTION FOR REPORTED SLIGHT APPARENT POWER LOSS, FOUND NR 2 CYLINDER EXHAUST VALVE LIFTER BODY AND CAMSHAFT LOBE FAILED PREMATURELY. CAMSHAFT AND LIFTERS HAD BEEN RECONDITIONED AND REGROUND AT MAJOR OVERHAUL INSTEAD OF NEW. SDR CA980706013Crankshaft · corroded(CAN) A VISUAL INSPECTION OF THE INNER DIAMETER OF THE CRANKSHAFT SHOWED VISIBLE CORROSION PITTING (AD 98-02-08 REFERS). AN ON-WING FLUORESCENT PENETRANT INSPECTION (FPI), CARRIED OUT BY A SUITABLY RATED AMO, FOUND NO CRACKS. FURTHER MEASURING OF THE INNER DSDR CA980615002Crankshaft · worn(CAN) CRANKSHAFT INSPECTED AS PRE FAA AD 98-02-08. NUMEROUS CORROSION PITTING FOUND EXCEEDING THE MAXIMUM INTERNAL DIMENSIONAL LIMITS. CRANKSHAFT SCRAPPED.SDR 98ZZZX3928Crankshaft · failedENGINE VIBRATED 5-10 SECONDS BEFORE SEIZING, NO OTHER INDICATIONS OF PENDING FAILURE WERE NOTED. AT ENGINE TEARDOWN, THE CRANKSHAFT WAS FOUND BROKEN AT THE FORWARD END OF THE NR 4 CONNECTING ROD JOURNAL. MAINTENANCE RECORDS ONLY WENT BACK TO LAST OVERHAUL ANSDR AU980824Bolt · broken(AUS) ENGINE CONNECTING ROD BOLT FAILED. PART TOTAL CYCLES: 1,315.SDR 98ZZZX2170Connect Rod · failedON CLIMB-OUT FROM FAI, RIGHT ENGINE FAILED. NR 5 CYLINDER SEPARATED FROM ENGINE, NR 5 CONNECTING ROD BROKEN AT PISTON PIN. CASE RECEIVED MASSIVE DAMAGE.SDR 98ZZZX2172Tappet · spalledINSPECTION FOUND SPALLED TAPPET PROBLEM. THE CAMSHAFT WAS IN GOOD SHAPE, BUT DID NEED A REGRIND.SDR 98ZZZX2183Connect Rod · looseENGINE EXPERIENCED HIGH OIL TEMPERATURE 60 HOURS AFTER INSTALLING FACTORY OVERHAULED ENGINE. THERE WAS NOISE WHEN TURNING THE PROPELLER AFTER ENGINE SHUT DOWN. FACTORY SERVICE REP PULLED NR 3 AND NR 4 CYLINDERS AND FOUND THAT NR 3 AND NR 4 CONNECTING RODS HASDR 98ZZZX2271Connecting Rod · seizedENGINE SEIZED IN-FLIGHT. FOUND THAT THE NR 2 ROD SEIZED AND BROKE AT THE CRANK JOURNAL AND THE PISTON BROKE AT THE PIN HOLE, ALSO, PISTON SEIZED IN CYLINDER. FOUND TWO PIECES OF PUSHROD O-RINGS IN OIL SCAVENGE LINE FITTING AT BOTTOM OF CASE. DURING MAINTENASDR CA980602014Crankshaft · pitted(CAN) WHILE COMPLYING WITH AD 98-02-08 INSPECTION, PITS WERE FOUND IN THE CRANKSHAFT BORE.SDR CA980603003Bolt · failed(CAN) LOSS OF POWER ON NR 1 ENGINE FOLLOWED BY OIL LOSS. ENGINE WAS SHUTDOWN. INSPECTION FOUND THE STUDS AND THRU BOLT ON THE ENGINE CASING BROKEN.SDR AU980562Bolt · failed(AUS) LT ENGINE NR 6 CYLINDER HOLD-DOWN BOLTS/STUDS (6OFF) BROKEN.SDR AU980538Crankcase · out of limits(AUS) ENGINE CRANKCASE TUNNEL MEASUREMENTS OUT OF LIMITS.SDR 99ZZZX914Rod · damagedFOUND CONNECTING ROD BOLT-TO-HOLE CLEARANCE ON ROD CAP EXCESSIVELY TIGHT (OUT OF FACTORY LIMITS) TO THE POINT OF HAVING TO HAMMER THE BOLT INTO THE ROD CAP BOLT HOLE. AFTER INVESTIGATION WITH INSIDE AND OUTSIDE MICROMETERS AND CLOSE OBSERVATION OF THE INSIDE SDR AU980536Nut · mismanufactured(AUS) CONNECTING ROD NUT INCORRECTLY MACHINED AT FACTORY.SDR 98ZZZX4453Camshaft · scoredTHE INTERNAL TACHOMETER DRIVE SEIZED UP AND SHEARED THE TACH DRIVE PIN. REMOVAL OF THE TACH DRIVE COVER REVEALED METAL HAD PASSED THROUGH THE OIL PUMP. FURTHER INVESTIGATION REVEALED THE NR 5 CYLINDER VALVE LIFTER AND CAM LOBE WERE BREAKING UP AND SCOURED. SDR 98ZZZX2236Crankshaft · failedENGINE RPM SURGED AND FLUCTUATED. ENGINE LOST POWER. AIRCRAFT FLIPPED OVER DURING EMERGENCY LANDING. MAJOR DAMAGE, NO INJURIES. NO PROPELLER STRIKE. PRE TEAR-DOWN EXAM INDICATES THE ENGINE CRANKCHAFT IS BROKEN BETWEEN NR 2 AND NR 3 CYLINDERS.SDR 98ZZZX1858Camshaft · wornENGINE HAS LOW POWER. REMOVED CYLINDERS FOR TOP OVERHAUL AND FOUND CAM HAD BAD LOBES. TBO ON THIS ENGINE IS 2,000 HOURS.SDR AU980601Crankshaft · pitted(AUS) CRANKSHAFT PITTED IN AREA OF CRANKSHAFT FELT SEAL. THE DEPTH OF THE PITTING WAS 0.127MM TO 0.254MM (0.005 INCH TO 0.010 INCH). SUSPECT CAUSED BY MOISTURE RETENTION OF THE FELT SEAL.SDR 98ZZZX2439Crankshaft · failedAIRCRAFT DESTROYED AS A RESULT OF FORCED LANDING INDUCED BY A SEPARATION OF THE ENGINE CRANKSHAFT. SUBSEQUENT INVESTIGATION DISCLOSED A FATIGUE FAILURE ADJACENT TO THE CENTER MAIN BEARING JOURNAL. THIS ENGINE HAD EXPERIENCED 2 PREVIOUS PROPELLER STRIKES WHICSDR 98ZZZX1997Shaft · brokenREMOVED SUCTION SCREEN FOUND CHUNK OF METAL. REMOVED MAGS, LEFT IDLER GEAR 'LOOSE'. REMOVED ACCESSORY CASE, SHAFT-CRANKSHAFT IDLER BASE BROKEN.SDR 98ZZZX2111Camshaft · failedIN CRUISE FLIGHT, PILOT LOST PROP CONTROL, FEATHERED, AND LANDED. FOUND CAMSHAFT BROKEN AT GOVERNOR DRIVE END. RECORDS SHOW THIS WAS A NEW PART. INSTALLED AT OVERHAUL ON 3/89.SDR 98ZZZX1855Gear Lockplate · brokenDURING SCHEDULED ENGINE INSPECTION, CRANKSHAFT LOCK TAB WAS FOUND IN THE OIL SUMP SCREEN. REMOVED SUMP AND ACCESSORY HOUSING TO VERIFY. TAB ON BOLT WAS CONFIRMED BROKEN. CRANKSHAFT GEAR BOLT WAS FOUND TO HAVE MINIMAL TORQUE REMAINING. (LESS THAN 100 INCH/PSDR CA980602085Rod · failed(CAN) LARGE END OF NR 7 CYLINDER CONNECTING ROD FAILED.SDR AU980802Bearing · failed(AUS) NR 4 CYLINDER CONNECTING ROD BEARING FAILED. METAL CONTAMINATION OF OIL SYSTEM. SUSPECT CAUSED BY INCORRECT CRANKSHAFT BEING INSTALLED IN THE ENGINE. LTIO-540-J2BD CRANKSHAFT INSTALLED INSTEAD OF TIO-540-J2BD CRANKSHAFT. CRANKSHAFTS HAVE THE OIL PASSSDR 98ZZZX2698Snap Ring · misinstalledTHE ENGINE WHICH CONTAINED THESE PARTS WAS SHIPPED DIRECTLY FROM TCM AFTER REMANUFACTURE. UPON DISASSEMBLY, FOUND THE CRANKSHAFT COUNTERWEIGHT PIN SNAP RINGS WERE INSTALLED WITH THE SMOOTH ROUNDED SIDE TO THE OUTSIDE. THE O-470 OVERHAUL MANUAL (72-50-07 PARASDR CA980819004Crankshaft · pitting(CAN) PITTING CORROSION FOUND DURING INSPECTION IN ACCORDANCE WITH AD 98-02-08. LIQUID PENETRANT INSPECTION CARRIED OUT. NO CRACKS EVIDENT. CRANKSHAFT IS ON 100 HOUR RE-INSPECTION CYCLE.SDR 98ZZZX2275Connect Rod · failedNR 3 CYLINDER ROD BROKE IN CRUISE FLIGHT.SDR 98ZZZX1994Crankcase Stud · brokenDURING THE COURSE OF A 100-HOUR INSPECTION, THE MECHANIC NOTICED THE LEFT ENGINE, NR 1 CYLINDER, MOST FORWARD UPPER STUD HAD BROKEN OFF FLUSH WITH THE CYLINDER BASE/SKIRT. THE CYLINDER WAS REMOVED AND THE CASE WAS INSPECTED FOR CRACKS AND ANY SIGNS OF CHAFINGSDR AU980491Dowel · sheared(AUS) CRANKSHAFT ACCESSORY DRIVE GEAR POSITIONING DOWEL SHEARED. AIRCRAFT SUFFERED A LOSS OF POWER AND WAS DAMAGED DURING A FORCED LANDING. ENGINE HAD SUFFERED A PROPELLER STRIKE PRIOR TO THE LAST OVERHAUL AT WHICH THE DOWEL PIN WAS INSPECTED BUT NOT REPLACESDR CA980819002Crankshaft · pitting(CAN) PITTING CORROSION FOUND DURING INSPECTION IN ACCORDANCE WITH AD 98-02-08. LIQUID PENETRANT INSPECTION CARRIED OUT. NO CRACKS EVIDENT. CRANKSHAFT IS ON 100 HOUR RE-INSPECTION CYCLE.SDR CA980513006Camshaft · worn(CAN) DURING INSPECTION, METAL PARTICLES WERE FOUND IN THE OIL. FURTHER INVESTIGATION FOUND NR 4 CAM LOBE WORN AND PITTED.SDR CA980430002Crankshaft · cracked(CAN) WHILE CARRYING OUT AD 98-02-08 (LYCOMING SB 505B), INITIAL INSPECTION FOUND MODERATE AMOUNTS OF PITTING IN THE INSIDE DIAMETER OF THE CRANKSHAFT. NDT TESTING, PER THE SB, DETECTED TWO CRACKS, ONE .25 LONG, THE SECOND .50 LONG. THE ENGINE WAS REMOVED.SDR CA980424021Crankshaft · corroded(CAN) INSPECTION OF CRANKSHAFT CARRIED OUT PER LYCOMING SERVICE BULLETIN 505B. CORROSION PITS WERE FOUND. FLUORESCENT PENETRANT INSPECTION CARRIED OUT. NO CRACKS NOTED.SDR CA980424020Crankshaft · corroded(CAN) INSPECTION OF CRANKSHAFT CARRIED OUT PER LYCOMING SERVICE BULLETIN 505B. CORROSION PITS WERE FOUND. AREA HONED, PITS WERE REMOVED AND PROTECTIVE COATING WAS APPLIED PER LYCOMING SB 530.SDR CA980424019Crankshaft · corroded(CAN) INSPECTION OF CRANKSHAFT CARRIED OUT PER LYCOMING SERVICE BULLETIN 505B. CORROSION PITS WERE FOUND. FLUORESCENT PENETRANT INSPECTION CARRIED OUT. NO CRACKS NOTED.SDR CA980424018Crankshaft · corroded(CAN) INSPECTION OF CRANKSHAFT CARRIED OUT AS PER LYCOMING SERVICE BULLETIN 505B. CORROSION PITS WERE FOUND. AREA HONED, PITS WERE REMOVED AND PROTECTIVE COATING WAS APPLIED PER LYCOMING SB 530.SDR 98ZZZX2130Bolt · failedTHIS ONE OUT OF EIGHT NEW CONNECTING ROD BOLTS STRETCHED AND DECREASED IN DIAMETER WHEN BEING TORQUED TO OEM SPECIFICATION DURING ENGINE OVERHAUL. ALL EIGHT BOLTS ARE 'NOT' BEING PUT INTO SERVICE. BOLT WOULD NOT TORQUE TO OEM SPECIFICATIONS.SDR 98ZZZX1996Crankcase Bolt · crackedDURING THE COURSE OF A 100-HOUR INSPECTION, THE MECHANIC NOTICED A SIZEABLE AMOUNT OF OIL ON THE TOP LEFT PORTION OF THE ENGINE CASE. A CLOSER INSPECTION REVEALED A CRACK APPROXIMATELY 1.6250 INCH LONG EMITTING FROM THE 9TH BACKBONE BOLT (COUNTING FROM FRONT SDR 98ZZZX1670Crankcase · crackedTHE CRANKCASE SPLIT FROM NR 6 CYLINDER HOLE TO OIL FILLER HOLE ON TOWARD TO THE FRONT OF THE CASE. THIS OCCURRED IN CONJUNCTION WITH THE CYLINDER MOUNTING STUD IN THIS IMMEIDATE AREA FAILING. THE CIRCUMSTANCES UNDER WHICH IT OCCURED WERE 'NORMAL OPERATION'. SDR 98ZZZX2569Tappet · brokenDURING DAILY CHECK, MECHANIC FOUND EXCESSIVE OIL LEAK ON LEFT ENGINE. COWLING REMOVED AND FOUND NR 3 CYLINDER INTAKE PUSH HOUSING BROKEN. AFTER REMOVAL OF HOUSING, FOUND HYDRAULIC TAPPET BODY BROKEN. ENGINE REMOVED TO INVESTIGATE. MORE INFORMATION WILL BE SDR 98ZZZX1861Connecting Rod · failedCONNECTING ROD BROKE AT PISTON PIN AREA. REMAINING POSTION OF ROD PUNCHED HOLE IN CRANKCASE, DAMAGED PISTON, AND RESULTED IN ENGINE SHUT DOWN.
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