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 2020FA0000073Gear · failedUPON DISASSEMBLY IT WAS DETERMINED CRANKSHAFT TO CAMSHAFT GEAR 17725 FAILED, IT APPEARS IT WAS IMPROPERLY INSTALLED AT OVERHAUL THE GEAR HAS INDICATIONS OF MOVING FREELY ON CRANKSHAFT CAUSING WEAR AND FAILURE.SDR 2020FA0000052Pushrod · wornBRAND NEW ENGINE WITH 461.5 HOUR HAS EXCESSIVE WEAR ON PUSHROD TIPS BETWEEN ROCKER ARMS AND PUSHROD. SEVEN OR EIGHT PUSHRODS AND ROCKERS ARE WORN BEYOND LIMITS. THIS HAS BEEN NOTICED ON MULTIPLE LYCOMING ROLLER ENGINES.SDR 2018FA0000425Lifter · wornROTOR CAP ON EXHAUST VALVE BROKE INTO MANY PIECES. VALVE KEEPER CAME OFF AND THE EXHAUST VALVE HIT THE PISTON. ENGINE BECAME VERY ROUGH RUNNING. WE THINK THAT THE LIFTER LOST ITS PRIME AND THERE WAS EXCESSIVE CLEARANCE BETWEEN VALVE AND ROCKER ARM.SDR HYIA20180928001Pushrod · brokenPILOT REPORTED THE LEFT ENGINE RUNNING ROUGH IN FLIGHT AND OIL PRESSURE WENT TO ZERO PSI. PRELIMINARY INSPECTION FOUND METAL CONTAMINATION IN OIL FILTER, #4 CYLINDER INTAKE PUSH ROD BROKEN AND A LARGE GAP AT THE EXHAUST ROCKER ARM. THE ENGINE IS BEING REPLACEDSDR Q532018F00001Gear · chippedCRANKSHAFT GEAR CHIPPED ONE TOOTH OFF. PROB DUE TO STARTER KICKBACK (ENERGIZER STARTER). AROUND 05/20/2018 AT TACK 3175 OWNER REPORTED TICKING NOSE ON GROUND. SOUND WENT AWAY WITH INCREASE RPM. ABOUT 1500. EVENTUALLY FOUND ONE TOOTH MISSING FROM CRANKSHAFSDR CCJA201809105011Lifter · spalledFOUND SPALLED EXHAUST LIFTER ON RIGHT HAND ENGINE.SDR CCJA201809105010Lifter · spalledFOUND SPALLED INTAKE LIFTER ON RIGHT HAND ENGINE.SDR CCJA201809105009Camshaft · spalledRIGHT ENGINE HAS SPALLED CAMSHAFT.SDR CCJA201809105003Lifter · spalledLEFT ENGINE HAS SPALLED EXHAUST LIFTERS.SDR CCJA2018091005002Lifter · spalledLEFT ENGINE HAS SPALLED INTAKE LIFTERS.SDR CCJA2018091005001Camshaft · spalledSPALLED CAMSHAFT.SDR NF2R2018082200001Lifter · failedDISCOVERED METAL IN THE OIL FILTER DURING OIL CHANGE, DISCOVERED LOWER END OF VALVE LIFTERS PITTING, CHIPPING, AND SOME MUSHROOMING MAKING REMOVAL DIFFICULT.SDR 2018FA0000345Intake Valve · brokenENGINE LOST POWER IN FLIGHT, RESULTING IN AN EMERGENCY LANDING. INSPECTION REVEALED THAT THE NUMBER 1 CYLINDER INTAKE VALVE FAILED, DAMAGING THE PISTON.SDR 2018FA0000220Piston · crackedNR 3 CYLINDER PISTON FAILURE RESULTING IN COMPLETE ENGINE FAILURE.SDR E5ZR20180613001Connecting Rod · failedAFTER TEARING DOWN THE ENGINE IN QUESTION IT IS OUR OPINION THAT THE FAILURE WAS DO TO OIL STARVATION OF THE NR 5 CYLINDER CONNECTING ROD CAP FOR UNKNOWN REASONS. THIS CAUSED FAILURE OF THE ROD CAP BOLTS. THE CAP BOLTS STRETCHED, SNAPPED AND THEY SHOW SIGNS SDR E5ZR2018061300178Connecting Rod · failedAFTER TEARING DOWN OF THE ENGINE IN QUESTION IT IS OUR OPINION THAT THE FAILURE WAS DO TO OIL STARVATION OF THE #5 CYLINDER CONNECTING ROD CAP FOR UNKNOWN REASONS. THIS CAUSED FAILURE OF THE ROD CAP BOLTS. THE CAP BOLTS STRETCHED, SNAPPED AND THEY SHOW SIGNSSDR 2018FA0000118Camshaft · making metalTHE ENGINE APPEARS TO HAVE FAULTY SET OF LIFTERS CAUSING SEVERE DAMAGE TO THE CAMS. PURCHASED WITH 20 HRS ENGINE TIME. CAMS AND LIFTERS WERE INSPECTED ON PRE-BUY AND FOUND TO BE VISUALLY NORMAL WITH BLUEING STILL PRESENT. PERSISTENT HIGH FE ON REGULAR OIL ASDR EPUA2018030316001Bushing · wornTHE AIRCRAFT ENGINE HAD FREQUENT PROBLEMS WITH THE ALTERNATOR BELT COMING OFF. MAINTENANCE INSPECT THE COUNTERWEIGHT ATTACH BUSHING FOR DEFECTS. ON INSPECTION IAW SERVICE BULLETIN MSB 99-3C, IT WAS DETERMINED THAT WEAR TO BUSHING WAS FOUND TO BE .004" FROM OSDR 2018FA0000238Plug · leakingTHE ENGINE WAS REBUILT 73.1 HOURS AGO AND STARTED LEAKING OIL FROM THE CRANKSHAFT PLUG PART NUMBER STD-1211. HAPPENED DURING AN INSTRUCTIONAL FLIGHT.SDR EPUA20180302001Bushing · wornTHE ENGINE HAD EXPERIENCE FREQUENT ALTERNATOR BELT THROWING PROBLEMS. NO FIX WAS FOUND. THE DECISION WAS MADE TO HAVE THE ENGINE INSPECTED FOR DEFECTS. FOUND EXCESSIVELY WORN CRANKSHAFT COUNTERWEIGHT BUSHINGS. THIS IS BELIEVED TO BE THE REASON THE ALTERNATSDR 2018FA0000440Lifter · spalledDAMAGED BEYOND REPAIR.SDR 2017FA0000654Bolt · shearedFAILURE OF CONNECTING ROD BOLT DUE TO LOSS OF NUT ON OTHER BOLT. ENGINE HAD FIREWALL FORWARD STC SE2741NM PISTON, CONNECTING ROD AND HARDWARE INSTALLED. ENGINE PROPELLER WAS NOT CORRECT PER STC, NR 3 CYLINDER HAD ONE CONNECTING ROD BOLT SHEARED, THE OTHER OSDR 2017FA0000615Case · crackedENGINE CASE HAS A THREE INCH CRACK BETWEEN THE NR 1 AND 3 CYLINDERS.SDR 8PCR20171031001Bolt · shearedENGINE DISASSEMBLED FOR OVERHAUL. CRANKSHAFT CLUSTER GEAR BOLTS (6 EACH) SHEARED. NEW PART NUMBER LARGE GEAR (P/N 656991) AND BOLTS (P/N 656990) WERE IN PLACE IAW LATEST SERVICE BULLETINS. LACK OF FRETTING SIGNATURES ON CRANKSHAFT GEARS AND ATTACHING BOLTS SDR 2RM2017F00001Lifter · spalledENGINE WAS DISASSEMBLED FOR PROP STRIKE INSPECTION. FOUND LIFTERS BEGINNING TO SPALL AND WERE REPLACED WITH NEW LIFTERS AT THIS TIME TO PREVENT DAMAGE TO CAMSHAFT. LIFTERS WERE INSTALLED IN MAY OF 2010 AND HAVE 303.7 HOURS SINCE NEW.SDR 2RM2017F00000Lifter · spalledENGINE WAS DISASSEMBLED FOR PROP STRIKE INSPECTION. FOUND LIFTERS BEGINNING TO SPALL AND WERE REPLACED WITH NEW LIFTERS AT THIS TIME TO PREVENT DAMAGE TO CAMSHAFT. LIFTERS WERE INSTALLED IN MAY OF 2010 AND HAVE 303.7 HOURS SINCE NEW.SDR 2018FA0000227Pushrod · wornEXCESSIVE WEAR ON PUSHROD ON THE ROCKER END AND ON THE ROCKER.SDR 2017FA0000491Connecting Rod · misinstalledDURING INSPECTION OF CONNECTING RODS FOR AD2017-16-11, MSB 632B, AN CONNECTING ROD BOLT WAS FOUND WITH INSUFFICIENT THREADS TO HOLD THE CONNECTING ROD TOGETHER.SDR 2017FA0000487Rod Bearing · spunPILOT HAD ROUTINE TAKEOFF ABOUT FIVE MINS INTO THE CLIMB ENGINE WAS LOOSING POWER THEN STARTED MAKING KNOCKING SOUNDS THEN OIL PRESSURE LIGHT CAME ON THEN PILOT DECLARED AN EMERGENCY AND LANDED AT A NEARBY AIRPORT. AFTER DISASSEMBLY OF ENGINE FOUND NUMBER TWO SDR EVGR201710130001Rod Bearing · brokenDUE TO SLOWLY PROGRESSING OIL CONSUMPTION RATE, PULLED THE NR 1 CYLINDER AND DISCOVERED THE NR 2 CONNECTING ROD CAP WAS LIGHTLY SCRAPING THE BOTTOM PISTON PIN BOSS AREA OF THE NR 1 PISTON. INVESTIGATION REVEALED THE NR 1 CONNECTING ROD BEARING HAD BROKEN.SDR 2017FA0000449Connecting Rod · failedDURING A TRAINING FLIGHT AT 3500 FEET THE ENGINE LOST POWER AND HAD CONSIDERABLE VIBRATION. THE PILOTS LANDED THE AIRCRAFT. SUBSEQUENT INVESTIGATION FOUND NO COMPRESSION ON THE NR 3 CYLINDER. ALSO IF THE CRANKSHAFT WAS TURNED THE NR 3 PISTON WAS STILL STATISDR 2017FA0000320Piston Ring · stuckWHILE ACFT WAS FLYING THE PILOT NOTICED OIL PRESSURE DROPPING INTO THE RED LINE, ON THE NR 2 ENGINE. HE SHUTDOWN THE ENGINE IN FLIGHT TO SAVE THE ENGINE FROM DAMAGE. ONCE ON THE GROUND MECHANICS STARTED TROUBLESHOOTING THE PROBLEM. CHECKED OIL DIP STICK, FSDR 2017FA0000303Bushing · spunDURING THE INSPECTION OF CONNECTING ROD BUSHING PER SB632A, TECHNICIAN FOUND 4 CONNECTING ROD BUSHINGS SPUN WHILE PERFORMING CHECK PER INSTRUCTIONS IDENTIFIED IN SB 632A.SDR HYIA20170706001Connecting Rod · bentPILOT REPORTED LEFT ENGINE RAN ROUGH DURING CLIMB AND THEN LATER ON GROUND AT IDLE. UPON INSPECTION, THE CONNECTING ROD ON THE NR 5 CYLINDER WAS FOUND TO BE BENT. THE ENGINE WAS REPLACED.SDR B4VR201706290001Bearing · failedWHEN POWER REDUCED FROM TAXIING POWER TO IDLE QUICKLY, ENGINE MAKES A FAST TICKING SOUND. PREVIOUS OIL ANALYSIS INDICATED A SLIGHTLY HIGHER COPPER CONTENT IN THE OIL. THE ENGINE WAS RAN BRIEFLY BY TECHNICIANS, NOTED THAT THE ENGINE WAS MAKING A LOUD KNOCKINGSDR JZYR2017062714126Crankshaft · brokenVERY LOUD POUNDING SOUND FROM THE CRANKCASE WHEN RUNNING. FOUND LARGE AMOUNTS OF FERROUS AND NON-FERROUS MATERIAL IN THE OIL FILTER, METAL AT THE SCREEN TO THE GOVERNOR, AND LARGE CHUNKS OF METAL IN THE OIL SUCTION SCREEN. ENGINE WAS REMOVED FROM THE AIRCRAFT SDR 2017FA0000321Bearing · seizedTHE HELICOPTER WAS CONDUCTING A SNOW SURVEY, AT APPROXIMATELY 11,500FT, AN ENGINE CHIP LIGHT ILLUMINATED ON THE CAUTION PANEL OF THE ACFT RIGHT AFTER TAKEOFF. THE PILOT IMMEDIATELY LANDED AND PROCEED TO INSPECT THE MAGNETIC ENGINE CHIP PLUGS WHICH WERE FOUND SDR 2017FA0000259Crankshaft · brokenTHE PILOT REPORTED HEARING A LOUD POP FROM THE NR 1 ENGINE ON TAKEOFF AND A NEAR COMPLETE LOSS OF RPM. THE ENGINE WAS SUBSEQUENTLY REMOVED AND DISASSEMBLED. THE CRANKSHAFT WAS FOUND TO BE COMPLETELY BROKEN JUST IN FRONT OF THE NR 2 BEARING. WHAT REMAINED OFSDR 2017FA0000319Journal · wornENGINE RECEIVED FOR INSPECTION DUE TO EXCESSIVE CRANKSHAFT END PLAY. UPON DISASSEMBLY, THE CRANKSHAFT HAD EXCESSIVE WEAR FOR A 500 HR CRANK AND THE WEAR PATTERN IMITATED THE OILING GROOVES OF THE MAIN BEARINGS. THE MAIN BEARING SADDLES EXHIBITED NO WEAR, IE SDR 2017FA0000243Bearing · failedAFTER REMOVAL OF THE CYLINDER, FOUND THAT THE CRANKSHAFT MAIN BEARINGS FROM THE NR 6 CYLINDER WERE CRUSHED AND PARTS OF THEM MISSING, LATER FOUND THE REMAINING PIECES OF BEARING MATERIAL AND PIECES OF THE CONNECTING ROD END CAP, NUTS AND BOLTS IN THE OIL SUMP.SDR 2017FA0000164Crankcase · crackedPILOT MADE AN EMERGENCY OFF AIRPORT LANDING AFTER EXPERIENCING A LOUD BANG FOLLOWED BY A LOSS OF ENGINE POWER AND SMOKE. INSPECTION OF THE ENGINE REVEALED A CRACK OF APPROXIMATELY 4 INCHES ON THE CRANKCASE STARTING FROM UNDER THE NR 3 CYLINDER FLANGE AT ABOUTSDR 2017FA0000276Crankshaft · brokenCRANKSHAFT BROKEN IN HALF AT COUNTERWEIGHT BLADESDR 2017FA0000502Thru Bolt · shearedCENTER TWO THROUGH-BOLTS ON ENGINE CRANKCASE SHEARED AND ENGINE LOST 4.5 QTS OF OIL INFLIGHT.SDR 2017FA0000356Lifter · spalledBOTTOM SURFACE OF LIFTERS SPALLING CAUSING DAMAGE TO CAMSHAFT AND METAL CONTAMINATION TO ENGINE.SDR 2017FA0000388Pushrod · wornPUSH ROD END SHOWING SIGNS OF HEAVY WEAR ON THE ROCKER SIDE. ROCKER ALSO DAMAGED BEYOND REPAIR. SEEN ON 3 ENGINES AND ON MULTIPLE CYLINDERS ONLY ON ROLLER ENGINES. SEEMS TO BE AN OILING ISSUE DUE TO INSTALLATION OF ROLLERS.SDR 2017FA0000083Journal · brokenENGINE SEIZED DURING GROUND RUN-UP BEFORE A NORMAL FLIGHT. DISASSEMBLY REVEALED A BROKEN CRANKSHAFT NR 2 ROD JOURNAL. ENGINE HAD 626.7 HOURS SMOH. NO EVIDENCE OF OIL STARVATION DURING INSPECTION.SDR 2016FA0000654Lifter · damagedTHE SURFACE OF THE LIFTER THAT CONTACT THE CAMSHAFT ARE SPALLED AND CORRODED. REPLACED THE LIFTERS.SDR 2016FA0000653Lifter · damagedTHE SURFACE OF THE LIFTER THAT CONTACT THE CAMSHAFT ARE SPALLED AND CORRODED. REPLACED THE LIFTERS.SDR 2016FA0000652Lifter · damagedTHE SURFACE OF THE LIFTER THAT CONTACT THE CAMSHAFT ARE SPALLED AND CORRODED. REPLACED THE LIFTERS.SDR 2016FA0000651Lifter · damagedTHE SURFACE OF THE LIFTER THAT CONTACT THE CAMSHAFT ARE SPALLED AND CORRODED. REPLACED THE LIFTERS.
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