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 2010FA0000415Intake Valve · broken(ECPS) DURING THIRD TOUCH AND GO CLIMB OUT AT APPROXIMATELY 400 FT. A LOUD BANG WAS HEARD AND A SMOKE / BURNT OIL SMELL APPEARED. ONLY PARTIAL ENGINE POWER WAS AVAILABLE BUT WAS ENOUGH TO TURN AROUND AND LAND ON THE SAME RUNWAY, WITHOUT INCIDENT. ENGINE WAS SHSDR 2010FA0000394Crankcase · crackedDURING A SCHEDULED INSP AND UPON VISUAL INSP A CRACK IN THE CRANKSHAFT CASE WAS DISCOVERED.SDR CA100525014Lifter · spalledUPON DISASSEMBLY, DISCOVERED LIFTERS AND CAMSHAFT SPALLED AND CHIPPED. THE INTAKE LIFTER 653888 (CHANGED NOV 16, 2009 DUE TO SB09-07 & AD2009-24-52, APPROX 180 HRS TTSN) WERE ALL DESTROYED. THE CAMSHAFT WAS ALSO DESTROYED.SDR 2010FA0000393Crankcase · crackedDURING A SCHEDULED INSPECTION AND UPON VISUAL INSPECTION A CRACK IN THE CRANKSHAFT CASE WAS DISCOVERED.SDR 2010FA0000395Crankcase · crackedDURING A SCHEDULED INSP AND UPON VISUAL INSP A CRACK IN THE CRANKSHAFT CASE WAS DISCOVERED.SDR BSYA2010013Connecting Rod · failedAIRCRAFT EN ROUTE FROM LZU-CLT-ATL WHEN THE RIGHT ENGINE FAILED NR 6 ROD PENETRATED THE CASE. PILOT THEN DIVERTED TO AND, LANDED NO PROBLEMS. CAUSE UNKNOWN AT THIS TIME.SDR CA100625004Crankshaft · broken(CAN) ON FEB 28/10, DURING CRUISE FLIGHT ENGINE DEVELOPED A VIBRATION FOLLOWED WITHIN SECONDS BY A TOTAL SEIZURE. AIRCRAFT WAS LANDED WITHOUT INJURY TO PILOT OR PASSENGER BUT TOTAL LOSS OF AIRFRAME. DISASSEMBLY OF ENGINE REVEALED THE CRANKSHAFT HAD FRACTUREDSDR ZB0R20100001Case · crackedOPERATOR REQUESTED TROUBLESHOOTING OF LOW OIL PRESSURE ON RT ENGINE. UPON REMOVAL OF RT ENG COWL, MECHANIC DISCOVERED OIL FILM ON LT SIDE OF ENG CASE. FURTHER INSP REVEALED WHAT APPEARED TO BE A CRACK ON THE LT CASE HALF. PAINT WAS REMOVED AND DYE PENETRANT APSDR CA100202009Crankcase · cracked(CAN) CRANKCASE CRACKED NEAR BASE BOLTS NR5 CYLINDER. (TC 20100202009)SDR CA100122005Crankcase · cracked(CAN) DURING A NORMAL MX ACTIVITY AND BEFORE PUTTING BACK THE TOP COWLING, 1 CRACK ON EACH ENG CRANKCASE WERE FOUND. BOTH CRACKS START FROM THE TOP SPLIT OF THE CASES (FROM AN ATTACHMENT BOLT) AND GOING DOWN APPROX 1 INCH. ENGINE HAS BEEN REMOVED AND SENT TO SDR CA100204006Case · cracked(CAN) CRACKED LT ENGINE CASE IN BETWEEN MOST FRONT THROUGH BOLTS CAUSING MINIMAL OIL LEAK AT NORMAL OPERATING TEMPERATURE. SMOKE SMELL NOTED IN COCKPIT, ENGINE REPLACED. (TC 20100204006)SDR DUFA20100005Connecting Rod · destroyedWHILE IN CRUISE FLIGHT, THE PILOT REPORTED THE LT ENG SUDDENLY LOST FUEL FLOW AND RPM. HE ATTEMPTED TO RESTART THE ENGINE SELECTING OTHER FUEL SOURCES WITHOUT SUCCESS. HE THEN FEATHERED THE PROPELLER AND PROCEEDED TO THE NEAREST SUITABLE AIRPORT WHERE HE MADE SDR CA100203013Piston · broken(CAN) DURING SERVICING, OIL PRESSURE SCREEN CHECKED AND FOUND TO BE FULL OF METAL. ENGINE SHIPPED FOR INSPECTION. ENGINE DISASSEMBLED AND FOUND 4 PISTONS WITH HALF OF THE SKIRT BROKEN OFF AT OIL SCRAPER RING GROOVE AND PIECES CONTAMINATED OIL. WHEN CYLINDERSSDR CA100519008Crankcase · cracked(CAN) OIL NOTED TO BE COMING FROM TOP CYLINDER STUD ON CYLINDER NR 1. CRANKCASE WAS DISASSEMBLED AND NDT SHOWED APPROX 1 IN CRACK ON INSIDE SURFACE OF CRANKCASE ACROSS THE AREA OF THE BLIND HOLE FOR THE CYL STUD. THE CRACK WAS NOTED TO BE APPROX ALIGNED WITH SDR N3B2010F00000Connecting Rod · brokenDURING CRUISE CLIMBOUT, AT APPROX F.L. 14,000: PILOT REPORTED LOUD BANG SOUND FROM RT ENGINE, FELT ACFT YAW AND ENGINE INSTRUMENTS INDICATED THAT ENGINE WAS LOSING POWER, PILOT FEATHERED PROP AND SHUTDOWN ENGINE. ACFT RETURNED TO DEPARTURE AND LANDED WITHOUT SDR 2010F00192Cam Follower · corrodedEXCESSIVE CAM LOBE WEAR IS CAUSING POWER LOSS AND EARLY REMOVAL OF SEVERAL OF OUR ENGINES. THIS ENGINE WAS REMOVED AT 1650.2 TTSO WITH 549.8 REMAINING ON OUR 2200HR O/H INTERVAL. HAVE BEEN IN CONTACT WITH MFG TECH SUPPORT FOR AN EXTENDED PERIOD OF TIME NOW NADSDR CA091127003Engine · power loss(CAN) THE INSTRUCTOR AND STUDENT WERE DEPARTING ON A LOCAL TRAINING FLIGHT AND EXPERIENCED A ROUGH RUNNING ENGINE WHEN THEY REDUCED POWER AFTER T/O. THE INSTRUCTOR ACTIONED THE `ROUGH ENGINE` TASKS OF THE APPROVED CHECKLIST, CONTACTED ATC TO DECLARE AN EMERGENSDR CA091114001Piston · cracked(CAN) DURING AN ANNUAL INSP, VALVE COVERS WERE REMOVED TO INSPECT VALVE GUIDE WEAR, NR 3 AND NR 4 EXH VALVE GUIDES WERE WORN, NR 3 BEING THE WORST, WAS REMOVED FIRST. ON REMOVAL OF NR 3 CYL, NR 3 PISTON WAS DISCOVERED CRACKED AND MISSING A PIECE AT THE RT UPPESDR 2009F00105Counterweight · failedIN FLIGHT ENG SHUTDOWN, DUE TO SEPARATION OF CRANKSHAFT COUNTERWEIGHT. THIS CAUSED BOTH LWR ENGINE MOUNTS TO FAIL AS WELL AS SUBSTANTIAL DAMAGE TO CRANKSHAFT AS WELL AS CAMSHAFT, CYLINDERS, CASE, LIFTERS, RODS, ETC. THIS OCCURRED IN FLIGHT, PILOT EXPERIENCESDR 2009FA0000943Bolt · brokenENGINE QUIT IN FLIGHT DUE TO FAILURE OF CRANKSHAFT CLUSTER GEAR RETAINING BOLTS. LAST MAJOR OVERHAUL WAS 12/04/1973SDR CA091028005Crankcase · cracked(CAN) FWD OF THE NUMBER 2 CYLINDER THE CASE HAS A SIGNIFICANT CRACK CAUSING OIL TO LEAK FROM THE CASE. THE ENGINE DOES HAVE A CONVERSION KIT INSTALLED WITH HIGH COMPRESSION CYLINDERS. STC SE792NW 125 HP. (TC 20091028005)SDR 2009FA0000888Gear · wornDURING INSPECTION OF RIGHT ENGINE STARTER DRIVE UNIT PER AD 2007-05-15 FOUND THE CRANKSHAFT GEAR WORN BEYOND ACCEPTABLE LIMITS. REPLACED WITH CONTINENTAL KIT R-EQ6642 CONTAING NEW GEAR AND OVERHAULED STARTER DRIVE UNIT.SDR 2009FA0000887Gear · wornDURING INSPECTION OF RIGHT ENGINE STARTER DRIVE UNIT PER AD 2007-05-15 FOUND THE CRANKSHAFT GEAR WORN BEYOND ACCEPTABLE LIMITS. REPLACED WITH KIT R-EQ6642 CONTAING NEW GEAR AND OVERHAULED STARTER DRIVE UNIT.SDR 2009FA0000951Plug · damagedLT ENG STARTED LOSING RPM. PILOT REPORTED FUEL PRESSURE DROPPED BELOW NORMAL RANGE BUT HAVE TO BELIEVE IT WAS OIL PRESSURE. ENG WAS CAGED AND LANDED SAFELY. THE OIL PRESSURE SCREEN WAS FULL OF ALUMINUM RESTRICTING OIL FLOW TO THE ENG. ON TEARDOWN, THE NR 4SDR 2009F00107Crankshaft · brokenLT ENG HAD UNCOMMANDED ENG SHUTDOWN IN CRUISE FLIGHT. ENG PROPELLER WAS THEN FEATHERED AND ENG SECURED IAW MANUAL. CHECKED ENG UPON REMOVAL AND FOUND CRANKSHAFT BUSTED, SPUN BEARINGS AT LEAST. CASE WAS UNABLE TO BE SPLIT DUE TO SOME CYL DAMAGE. LANDING WASSDR CA091021003Connecting Rod · mismanufactured(CAN) THE BOLT HOLE DID NOT HAVE SUFFICIENT CHAMFER TO FULLY ACCEPT THE BOLT. THERE IS A SERVICE BULLETIN ADDRESSING THIS ISSUE FOR THE OLDER PART NUMBER CONNECTING RODS. THIS NEWER PART NUMBER ROD IS SUPPOSED TO HAVE THIS LARGER CHAMFER INCORPORATED. INSUFFISDR TR7A090918001Crankcase · cracked1.5" CRACK ON TOP INBD SECTION OF CRANKCASE BETWEEN NR 3 AND NR 5 CYLINDERS. CRACK IS IN "NON-CRITICAL" AREA AND LESS THAN THE MAXIMUM ALLOWABLE LIMIT AS SPECIFIED BY SB 90-17. OWNER HAD ENG REMOVED AND HAD THE CRACK REPAIRED TO PERFORM TBO 460 HOURS BEFORE SDR 2010FA0000398Crankcase · cracked(CE8S) DURING A SCHEDULED INSP AND UPON VISUAL INSP A CRACK IN THE CRANKSHAFT CASE WAS DISCOVERED.SDR CA090911004Tappet · making metal(CAN) PILOT REPORT THAT AFTER RH ENGINE START, OIL PRESSURE LOW. MAINTENANCE FOUND SMALL METAL CHIP UNDER OIL PRESSURE RELIEF VALVE SEAT. RELIEF VALVE & SEAT CLEANED AND ENGINE OIL PRESSURE CHECKED NORMAL ON GROUND RUN. FURTHER MAINTENANCE INSPECTION OF THE MSDR 2009FA0000803Crankcase · crackedDURING A SCHEDULED INSP AND UPON VISUAL INSP A CRACK IN THE ENGINE CRANKSHAFT CASE WAS DISCOVERED.SDR CA090916006Camshaft · making metal(CAN) DURING THE ANNUAL INSPECTION DEBRIS WAS FOUND IN THE ENGINE OIL SCREEN. FURTHER INVESTIGATION FOUND ADDITIONAL DEBRIS IN THE OIL FILTER. #3 CYLINDER WAS REMOVED AND INTERNAL COMPONENTS OF THE ENGINE INSPECTED. DEBRIS SOURCE WAS IDENTIFIED TO BE A CAM SHASDR CA090902009Crankshaft · brokenIN FLIGHT FAILURE OF CRANKSHAFT AT THE NR 2 BEARING LOCATION. ACFT LANDED SAFELY.SDR 2009FA0000802Crankcase · crackedDURING A SCHEDULED INSP AND UPON VISUAL INSP A CRACK IN THE ENG CRANKSHAFT CASE WAS DISCOVERED.SDR 2009FA0000850Gear · fracturedON A FLIGHT THE ENGINE STOPPED SUDDENLY WITH NO WARNING. THE AIRCRAFT LANDED. THE ENGINE ACCESSORY CASE HAD MAJOR DAMAGE. THE MAGNETOS WERE BROKEN AWAY FROM THE CASE AND THERE WERE SOME LARGE HOLES IN THE CASE. A TEARDOWN INSPECTION REVEALED THAT THE CRANKCSDR 2009F00087Piston · failedPISTON FAILED AT PISTON PIN POINT. STRESS MARKS FOUND ON INITIAL INSPECTION.SDR CA090915003Follower · broken(CAN) HEAD OF CAM FOLLOWER BROKE OFF AND JAMMED UNDER HEAD OF AJOINING FOLLOWER, DAMAGING CRANKCASE. (TC# 20090915003)SDR 2009FA0000801Crankcase · crackedDURING A SCHEDULED INSP AND UPON VISUAL INSP A CRACK IN THE ENG CRANKSHAFT CASE WAS DISCOVERED.SDR 2009F00056Crankcase · crackedA 5-6 IN CRACK DEVELOPED IN CRANKCASE HALF JUST FWD OF THE NR 6 CYL BETWEEN THE OIL DIPSTICK AND THE TOP LT THRU BOLT ON THE NR 6 CYL. OIL WAS DISCOVERED IN THAT AREA AND THE ENG WAS WASHED AND CLEANED AND THEN DYE PENETRANT WAS SPRAYED AND THE CRACK WAS DISCSDR FFKA140Ring · brokenSHORTLY AFTER TAKEOFF, WHILE CLIMBING THROUGH ABOUT 3000 FT, ENGINE LOST ABOUT 200 - 300 RPM MOMENTARILY AND THEN RECOVERED. IT DID THIS 2 TIMES AND THEN WENT BACK TO NORMAL. NOT LONG AFTER THIS NOTICED THAT THE OIL PRESSURE HAD DIPPED INTO THE YELLOW. MX CSDR CA090716002Camshaft · worn(CAN) CAM AND FOLLOWERS FOR NR 1 AND NR 2 CYLINDERS WORN POSSIBLY DUE TO MOISTURE COLLECTING IN ENGINE CAUSING RUST ON AFFECTED PARTS.SDR 2009FA0000800Crankcase · crackedDURING A SCHEDULED INSPECTION AND UPON VISUAL INSPECTION A CRACK IN THE ENGINE CRANKSHAFT CASE WAS DISCOVERED.SDR 2009FA0000770Stud · crackedPILOT SAW LOSS IN OIL PSI AND MANIFOLD PSI, FEATHERED ENGINE AND LANDED, AFTER INSP, FOUND NR 3 CYLINDER ON RT ENGINE COMING OFF DUE TO STUDS BROKEN, NOT SURE WHICH STUD BROKE FIRST, BUT ONE STUD PROBABLY BROKE WHICH CAUSED EXTRA STRESS ON THE OTHER STUDS CAUSSDR SWP2009F00000Connecting Rod · brokenON JUNE 12, 2009 NR 3 CONNECTING ROD BROKE CAUSING NR 3 CYL TO SEPARATE COMPLETELY FROM ENGINE. ACFT LANDED IN AN ALFALFA FIELD. ACFT DID NOT SUSTAIN ANY DAMAGE. (K)SDR CA090615005Pushrod · bent(CAN) DURING A CYLINDER CHANGE, PUSHROD WAS FOUND TO BE BENT, REPLACED WITH SERVICEABLE UNIT.SDR 2009FA0000622Crankshaft · shearedCRANKSHAFT SHEARED WHILE IN FLIGHT.SDR CA090702014Lifter · worn(CAN) ENG WAS O/H AND RE-INSTALLED. DURING FLIGHT HOME ENG BEGAN TO RUN ROUGH SO THE PILOT SHUT IT DOWN AND LANDED. NO FAULT WAS FOUND SO HE TOOK OFF TO FLY ANOTHER LEG HOME. A SHORT TIME LATER THE ENGINE BEGAN TO RUN ROUGH AGAIN AND THE OIL PRESSURE ALSO BESDR CA090611005Crankcase · cracked(CAN) A 4-6 CM VERTICAL CRACK WAS NOTED BETWEEN NR 2 AND NR 4 CYL IN THE CRANKCASE DURING A 100 HR INSP. CRACK WAS SEEPING OIL.SDR N3B2009F00001Connecting Rod · failedRT ENG NR 2 CYL CONNECTING ROD FAILED NEAR END CAP. (K)SDR CA090603002Engine · damaged(CAN) ZERO TIME TSO ENGINE AFTER 3.3 HOURS UPON 3RD FLIGHT DURING CLIMB OUT AFTER TAKEOFF, PILOT NOTICED THE NR 2 ENGINE OIL TEM RISING UNCONTROLLABLY OVER RED LINE AND OIL PRESSURE DROPPING. RETARDANT LOAD WAS JETTISONED, ENGINE SHUTDOWN AND FEATHERED THEN ACSDR CA090611006Tappet · failed(CAN) AFTER TAKEOFF, CREW NOTICED RT OIL PRESSURE HAD DROPPED INTO YELLOW ARC. ACFT RETURNED TO AIRPORT AND LANDED WITHOUT FURTHER INCIDENT. ENG WAS INSPECTED AND NO APPARENT CAUSE WAS FOUND INITIALLY. THE OIL SUCTION SCREEN WAS INSPECTED AND A LARGE PIECE
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