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 AUS20021298Crankcase · cracked(AUS) CRANKCASE PNO 11F20022-D3) CRACKED AT THROUGH BOLT LOCATION. NO4CYLINDER PNO LW-12066 HOLDDOWN STUDS (7OFF8) SHEARED ALLOWING PARTIAL SEPARATION OF THE CYLINDER FROM THE CRANKCASE. UNABLE TOASCERTAIN CHAIN OF EVENTS.SDR CA021108016Engine · failed(CAN) ON CLIMB OUT OF YYC RT POWERPLANT BEGAN TO SURGE 300 TO 400 RPM. PILOT ADVISED TOWER AND RETURNED TO AIRPORT. NOTED THAT ONCE POWER WAS REDUCED POWERPLANT, THEN RAN NORMALLY. ONCE ON GROUND, ADDITIONAL ANTI ICE HOLES DRILLED IN BREATHER LINE AND 2 LBS PRSDR LER2002F00000Bolt · failedIN CRUISE FLIGHT. 6 HOURS AFTER ENGINE START WHEN PILOT NOTICED SLIGHT ROUGHNESS FOLLOWED BY LOSS OF OIL PRESSURE. FOLLOWED IMMEDIATELY BY EXTREME VIBRATION, SMOKE AND OIL FROM ENGINE COMPARTMENT AND ENGINE STOPPAGE. PILOT COMPLETED A SUCCESSFUL EMERGENCY LSDR 2002FA0001317Gear · mismarkedTHE CRANK GEAR WAS INSTALLED NEW IN A FRESHLY OVERHAULD ENGINE. THE ENGINE WAS HARD STARTING AND WOULD NOT GIVE A SATISFACTORY STATIC POWER CHECK. TROUBLESHOOTING REVEALED THE OVERHAULER ASSEMBLED THE ENGINE WITH THE TIMING MARKS ALIGNED. THE TIMING MARK WASDR 2002FA0001205Bolt · defectiveFINAL TORQUE OF CRANKSHAFT BOLT COULD NOT BE REACHED, AFTER REMOVAL OF BOLT, IT WAS FOUND TO BE DEFFECTIVE, AND TAPPERED TOWARDS THE CENTER OF THE SHANK.SDR 2002FA0001299Crankshaft · crackedCRANKSHAFT CRACKED BETWEEN FRONT TWO COUNTERWEIGHTS AND A PIECE MISSING FROM THAT AREA.SDR CA030225005Crankshaft · disconnected(CAN) NR 6 CONNECTING ROD CRANKSHAFT END BECAME DISCONNECTED AND SMASHED THROUGH ENGINE CASE. BOLTS EITHER WRE NOT TORQUED CORRECTLY OR CLAMPSHELL BOLT FAILURE.SDR 2003FA0000435Piston · contaminatedENGINE DISMANTLED DUE TO METAL CONTAMINATION. FOUND NR 2 PISTON BROKEN AT TOP SCRAPER RING LAND.SDR 2003FA0000996Main Bearing · failedNEW FRONT MAIN BEARING PN LW13884M010 (6-99 ML-KS) INSTALLED AT ENGINE MAJOR OVERHAUL ON 5/15/00. ENGINE REMOVED THIS DATE FOR METAL CONTAMINATION DV SCREEN AND FILTER. METAL SOURCE IS FROM MAIN BEARING DELAMINATION. THIS IS A MANUFACTURING PROBLEM. FURTHESDR AUS20021165Bearing · broken(AUS) NO2 MAIN BEARING BROKEN. REMAINING MAIN BEARINGS MOVING SIDEWAYSCAUSING TANGS TO WEAR INTO CASE.SDR 2002FA0001191Lock · overtorquedLOCKPLATE FOR CRANKSHAFT GEAR RETAINING BOLT NOT SUFFICIENTLY BENT ALLOWING CRANKSHAFT GEAR BOLT TO LOOSEN. CRANKSHAFT GEAR DOWEL PIN SHEARED. RECOMMENDATION TO PREVENT RECURRENCE: CRANKSHAFT GEAR BOLT TORQUE SHOULD BE VERIFIED AT 204IN/LBS AND LOCKPLATE INSDR NACA20020052Cam · failedNR 3 ENGINE SHUT DOWN DUE TO OIL LOSS. REPLACED NR 3 ENGINE DUE TO FRONT CAM FAILURE.SDR 2003FA0000139Gear · wrong partENGINE STOPPED RUNNING DUE TO A FAILED INTERMEDIATE CAM DRIVE GEAR. UPON DISASSEMBLY IT WAS FOUND THAT A PN 3979 GEAR FROM A TANK ENGINE HAD BEEN SUBSTITUTED FOR THE PN A3062. AIRCRAFT ENGINE GEAR WHICH SHOULD HAVE BEEN USED. TANK IGNITION DRIVE GEARS HAD BSDR AUS20021063Crankcase · cracked(AUS) ENGINE CRANKCASE CRACKED ON LH SIDE ADJACENT TO THE FRONT CYLINDER. THIS DEFECT IS LINKED WITH MDR 02/1062 (MISSING OIL PLUG).SDR CA021031010Camshaft · failed(CAN) ENGINE RUNS UNEVEN. FOUND METAL DEPOSITS IN OIL FILTER. ENGINE REMOVED AND SENT FOR INSPECTION/REPAIR.SDR AUS20021053Crankshaft · cracked(AUS) CRANKSHAFT CRACKED. CRACK RAN THROUGH THE OIL GALLERY, ACROSS THE THRUST FACE AND THROUGH THE OPPOSITE OIL GALLERY. CRACK EXTENDS THROUGH ALMOST 60% OF THE CIRCUMFERENCE OF BEARING JOURNALSURFACE.SDR CA021016026Connecting Rod · broken(CAN) PILOT EXPERIENCED STRANGE NOISE AND VIBRATION FROM ENGINE WHILE IN CRUISE. AIRCRAFT WAS LANDED AND TOWED TO SAFE STORAGE. ENGINE REPLACED.SDR AUS20021018Crankshaft · cracked(AUS) CRANKSHAFT CRACKED IN FORWARD RADIUS OF NO4 MAIN BEARING JOURNAL. FOUND DURING MAGNETIC PARTICLE INSPECTION. ENGINE HAD A BULKSTRIP CARRIED OUT AT 86.2 HOURS DUE TO PROPELLER STRIKE.SDR 2002FA0001091Lifter · spalledSEVEN SPALLING OF LIFTERS AND CAM SHAFT WITH ONLY 130 HOURS USE. ALSO FAILED WITH 60 HOURS USE.SDR 2002FA0001033Rod Bolt · stretchedAT INSTALLATION OF THE NEW CONNECTING ROD BOLT AND NUT IT WAS NOTED THAT PROPER TORQUE WAS NOT ACHIEVED WITH THE SAME AMOUNT OF TURNS AS THE OTHER ROD BOLTS AND NUTS. A VISUAL INSPECTION SHOWED THAT MORE THREADS WERE SHOWING PAST THE NUT THAN OTHER BOLTS ON TSDR AUS20021221Crankshaft · damaged(AUS) CRANKSHAFT BIG END JOURNALS FOR NR 4 AND NR 5 CYLINDER CONNECTING ROD SEVERELY OVERHEATED. CRANKSHAFT AND CONNECTING RODS DAMAGED BEYOND REPAIR. FOUND DURING ENGINE STRIP INSPECTION FOR LOW OIL PRESSURE.SDR J7H2002F00000Crankcase · crackedTHREE FACTORY NEW ENGINE CRANK CASE CRACKED JUST OVER ONE THOUSAND HOURS OF OPERATIONS, DURING NORMAL OPERATIONS. THE LAST ENGINE CRANK CASE CRACKED AT 1034 AND PRIOR 1038 AND 1032 HOURS, WHICH APPEARS TO BE A TREND.SDR FMAA2002001Camshaft · wornALARMING AMOUNT OF METAL WAS FOUND IN THE FULL FLOW OIL FILTER, FURTHER INSPECTION REVEALED THAT ONE CAMSHAFT LOBE BEGAN WEAR EXCESSIVELY.SDR 2002FA0001102Camshaft · erodedWITH NO PROBLEMS TO 1952 HRS SINCE NEW (TBO1600), THIS ENGINE WAS OVERHAULED IN FEB 99. NOTHING BUT PROBLEMS SINCE. AT FIRST OIL CHANGE, AFTER OVERHAUL (35 HOURS) ABNORMAL METAL SLIVERS FOUND IN OIL FILTER. CONTINUED FLYING. MORE FERROUS METAL AT 2ND OIL CSDR MMS2002F00000Bearing · wornENGINE OIL CHIP LIGHT CAME ON AFTER TAKE OFF. RETURNED AND LANDED. FOUND METAL IN OIL AND FILTER. REMOVED PROP AND THRUST BEARING COVER. FOUND THRUST BEARING BALLS SEVERLY WORN AND BALL CAGE BROKEN. REMOVED GEAR REDUCTION CASE AND REWORKED BY OVERHAUL FACSDR AK62002F00001Bearing · failedTHE RT ENGINE APPEARS TO HAVE SUFFERED FROM OIL STARVATION AT THE NR 5 ROD JOURNAL. THIS CAUSED THE ROD TO SEPARATE AND PROTRUDE THRU THE TOP OF THE CRANKCASE.SDR 2002FA0000982Bearing · separatedCONTAMINATION FOUND IN SUCTION SCREEN. DISASSEMBLY OF ENGINE FOUND ONE OF THE CENTER MAIN BEARINGS BABBIT MATERIAL STARTED TO SEPARATE FROM SHELL. DATE CODE ON BEARING IS (07-2000).SDR 2002FA0000981Rod End Bearing · separatedMETAL CONTAMINATION FOUND IN SUCTION SCREEN AND FILTER. DISASSEMBLY OF ENGINE NOTED BABBIT SEPERATION FROM NR 1 ROD CAP BEARING SHELL. THE REMAINDER OF THE OTHER ROD BEARINGS SHOWED SIGNS OF STARTING TO SEPARATE.SDR 2002FA0000992Pin · failedTHE LIFTER BORES WERE ALL SLEEVED (ALL 12) NOTE: THE SLEEVES CAME LOOSE IN ALL THE HOLES (EXCEPT TWO) ROTATING AND BLOCKING OFF OIL PASSAGES. THERE WERE NO STANDARD SAFETY PINS, OR DEVICES TO HOLE THE LIFTER SLEEVE IN PLACE. THERE ARE MANY OTHER ENGINES IN SSDR 2002FA0001103Lifter · erodedWITH NO PROBLEMS TO 1952 HOURS SINCE NEW (TBO1600), THIS ENGINE WAS OVERHAULED IN FEB 99. NOTHING BUT PROBLEMS SINCE. AT FIRST OIL CHANGE AFTER OVERHAUL (35 HOURS) ABNORMAL METAL SLIVERS FOUND IN OIL FILTER. CONTINUED FLYING. MOR FEROUS METAL AT 2ND OIL CHSDR 2002FA0000978Crankcase · crackedDURING OVERHAUL. THE LIQUID PENETRANT INSPECTION REVEALS CRACKS IN MAIN BEARING BOSSES, CENTER ON LEFT SIDE. DOWN IN OIL CHANNEL RADIUS. THIS CRANKCASE IS PHASE III 7TH STUD STYLE.SDR AUS20021005Bearing · failed(AUS) ENGINE OIL FILTERS CONTAMINATED WITH METAL. SUSPECT CAUSED BY FAILURE OF EITHER MAIN BEARING OR BIGEND BEARING.SDR AUS20020942Bolt · loose(AUS) ENGINE CRANKSHAFT GEAR RETAINING BOLT LOOSE. THE BOLT HEAD WASWORN DOWN FROM RUBBING ON THE INSIDE OF THE OIL PUMP DRIVESHAFT.THE CRANKSHAFT GEAR ROTATED ON THE BOLT, SHEARING THE DRIVE DOWEL AND GEAR TEETH. THE LH MAGNETO DRIVE GEAR DAMAGED IN AREA WHERSDR MW22002F00000Crankshaft · brokenCRANKSHAFT BROKEN IN TWO PIECES AT NR 3 ROD CHEEK.SDR AUS20021051Connecting Rod · failed(AUS) DURING AGRICULTURE OPERATIONS (SPREADING SUPER) THE PILOT ENCOUNTERED EXCESSIVE ENGINE VIBRATION AND A POSSIBLE OVERSPEED (WAS UNABLE TO READ GAUGES). ENGINE WAS SHUT DOWN AND A FORCED LANDING CARRIED OUT. INITIAL INVESTIGATION FOUND THAT NR 4 OR NR 6 CSDR AUS20020912Crankcase · cracked(AUS) ENGINE CRANKCASE CRACKED. NO5 CYLINDER REAR HOLDDOWN STUD NUT LOOSENED LEADING TO FAILURE OF THE OTHER HOLDDOWN NUTS ANDSEPARATION OF THE CYLINDER.SDR CA020719007Crankshaft · cracked(CAN) CRANKSHAFT CRACKED - PIECE FROM COUNTERWEIGHT BROKEN - MISALIGNMENT CAUSED CAMSHAFT TO SHEAR 2 VALVE FACES DAMAGED.SDR AUS20020937Bearing · failed(AUS) CRANKSHAFT MAIN BEARINGS SHOWED INDICATIONS OF PREMATURE FAILURE. BEARINGS PNO SA 633136 (2OFF) AND PNO SA 642720 (6OFF). ENGINEWAS BEING BULK STRIPPED FOLLOWING PROPELLER STRIKE.SDR 2002FA0000808Crankshaft · failedNR 3 CYLINDER AND ROD LOOSE FROM CRANKSHAFT AND CASE HALF SENT TO HALF SENT TO REPAIR FACILITY. THEY SAID WRONG OIL PUMP GEARS. FAILED PUMP OIL STARVATION DESTROYED CRANK SHAFT AND ENGINEER.SDR CA020703001Plug · loose(CAN) CRANKSHAFT HAS PRESSED IN WELSH PLUG IN FORWARD SECTION. THIS PLUG WAS FOUND INSIDE CRANKCASE.THE FOD WAS LIMITED TO CYLINDERS AND UNDERSIDE OF PISTONS.SDR AUS20020612Camshaft · worn(AUS) CAMSHAFT LOBES AND ASSOCIATED LIFTERS (3OFF) BADLY WORN.SDR CA020619012Gear · broken(CAN) AT THE MOMENT OF ACCIDENT, THE MOTOR DID A "KICK BACK". TWO TEETH OF THE CRANKSHAFT GEAR THAT WERE IN CONTACT WITH THE STARTER CLUTCH SHAFT GEAR BECAME BROKEN AND FELL INTO THE OIL PAN. THIS MODEL OF THE STARTER CLUTCH CAN STICK IF IT IS TURNED COUNTER-CSDR 2002FA0000973Crankcase · crackedCRACK 1.3750 INCH OUT OF THE UPPER REAR CYLINDER BASE STUD, AT THE ONE OCLOCK POSITION.SDR 2002FA0000836Lifter · failedTHIS ENGINE WAS OVERHAULED 6/10/99 BY REPAIR STATION. IT NOW HAS 563.3 HOURS AND ALL THE INTAKE VALVES WERE BAD, ALL EXHAUST GUIDES WERE BAD, AND ALL LIFTERS ARE BAD. CYLINDERS WERE NEW FROM PARTS MFG AND SUPPLY. THIS AIRCRAFT HAS NOT SET FOR OVER 1 MONTH ASDR 2002FA0000835Lifter · failedTHIS ENGINE WAS OVERHAULED 6/10/99 BY REPAIR STATION. IT NOW HAS 563.3 HOURS AND ALL THE INTAKE VALVES WERE BAD, ALL EXHAUST GUIDES WERE BAD, AND ALL LIFTERS ARE BAD. CYLINDERS WERE NEW FROM PARTS MFG AND SUPPLY. THIS AIRCRAFT HAS NOT SET FOR OVER 1 MONTH ASDR AUS20021112Bolt · failed(AUS) NO6 CYLINDER UPPER THROUGH BOLT FAILED.SDR 2002FA0000700Camshaft · wornDURING NORMAL INSPECTION, FOUND FERROUS METAL SLIVERS IN OIL FILTER, FUTHER INSPECTION BY REMOVING NR 1 AND NR 3 CYLINDER SHOWED, METAL IMBEDED IN PISTON SKIRTS, AND CAM LOBE SHAIRED BY NR 3 CYLINDER INTAKE AND NR 4 CYL EXHAUST SEVERELY WORN AND PITTED AND CASDR CA020617003Connecting Rod · broken(CAN) CONNECTING ROD APPEARS TO HAVE BROKEN 1 INCH OUT FROM CRANKSHAFT JOURNAL. THIS WRAPPED ITSELF AROUND UNTIL THE CONNECTING ROD CAP DEPARTED AND THE PIECES BROKE THE CASE 60 PERCENT OF THE WAY AROUND THE ENTIRE CASE AND DESTROYED THE CAMSHAFT AND JAMMED UPSDR 2002FA0000695Crankshaft · shearedAIRCRAFT LANDED WITH RIGHT ENGINE FEATHERED. REMOVED COWLING TO INVESTIGATE ENGINE STOPPAGE REMOVED TOP SPARK PLUGS, FOUND WHEN TURNING PROPELLER THAT IT WOULD ONLY MOVE ONE REVOLUTION THEN LOCKUP. WHEN LOOKING IN CYLINDERS ONLY FRONT TWO, NR 5 AND NR 6 PISSDR CA020530009Piston · broken(CAN) ENGINE RAN WELL NO VISIBLE PROBLEM. PIECE OF PISTON SKIRT BROKEN LOOSE HELD IN BY OIL RING AND CYLINDER CURVE ONLY.
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