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.

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.Nov 1, 2002 · Piper PA31350SDR 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 PROct 30, 2002 · Piper PA31350SDR 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 LOct 22, 2002 · N9296T · Piper PA38112SDR 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 WAOct 17, 2002SDR 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.Oct 17, 2002 · N9562D · Cessna 182SSDR 2002FA0001299Crankshaft · crackedCRANKSHAFT CRACKED BETWEEN FRONT TWO COUNTERWEIGHTS AND A PIECE MISSING FROM THAT AREA.Oct 14, 2002SDR 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.Oct 13, 2002 · Cessna U206ESDR 2003FA0000435Piston · contaminatedENGINE DISMANTLED DUE TO METAL CONTAMINATION. FOUND NR 2 PISTON BROKEN AT TOP SCRAPER RING LAND.Oct 10, 2002SDR 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. FURTHEOct 7, 2002 · N3450W · Piper PA32260SDR AUS20021165Bearing · broken(AUS) NO2 MAIN BEARING BROKEN. REMAINING MAIN BEARINGS MOVING SIDEWAYSCAUSING TANGS TO WEAR INTO CASE.Oct 7, 2002 · Cessna 404CESSNASDR 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 INOct 3, 2002 · N837KS · Beech C23SDR NACA20020052Cam · failedNR 3 ENGINE SHUT DOWN DUE TO OIL LOSS. REPLACED NR 3 ENGINE DUE TO FRONT CAM FAILURE.Sep 29, 2002 · N1377K · Doug C118ASDR 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 BSep 27, 2002SDR 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).Sep 24, 2002 · Piper PA31SDR CA021031010Camshaft · failed(CAN) ENGINE RUNS UNEVEN. FOUND METAL DEPOSITS IN OIL FILTER. ENGINE REMOVED AND SENT FOR INSPECTION/REPAIR.Sep 23, 2002 · Hughes 269C1SDR 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.Sep 18, 2002 · Bell 47G5ASDR 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.Sep 11, 2002 · Cessna A185FSDR 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.Sep 6, 2002 · Piper PA32RT300TSDR 2002FA0001091Lifter · spalledSEVEN SPALLING OF LIFTERS AND CAM SHAFT WITH ONLY 130 HOURS USE. ALSO FAILED WITH 60 HOURS USE.Sep 5, 2002 · N18292 · Beech B60SDR 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 TSep 3, 2002SDR 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.Sep 1, 2002SDR 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.Sep 1, 2002 · Cessna 404SDR FMAA2002001Camshaft · wornALARMING AMOUNT OF METAL WAS FOUND IN THE FULL FLOW OIL FILTER, FURTHER INSPECTION REVEALED THAT ONE CAMSHAFT LOBE BEGAN WEAR EXCESSIVELY.Aug 30, 2002 · N87TS · Piper PA31SDR 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 CAug 30, 2002 · N265D · Beech B60SDR 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 FACAug 28, 2002 · N316OT · Airtrc AT301SDR 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.Aug 23, 2002 · N5448J · Cessna 421BSDR 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).Aug 13, 2002 · N502ER · Cessna 172SSDR 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.Aug 13, 2002 · N66340 · Beech 76SDR 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 SAug 8, 2002 · N102SB · Beech B60SDR 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 CHAug 3, 2002 · N265D · Beech B60SDR 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.Jul 31, 2002SDR AUS20021005Bearing · failed(AUS) ENGINE OIL FILTERS CONTAMINATED WITH METAL. SUSPECT CAUSED BY FAILURE OF EITHER MAIN BEARING OR BIGEND BEARING.Jul 26, 2002 · Mooney M20FSDR 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 WHERJul 22, 2002 · Piper PA25235SDR MW22002F00000Crankshaft · brokenCRANKSHAFT BROKEN IN TWO PIECES AT NR 3 ROD CHEEK.Jul 15, 2002 · N3963G · Cessna 340ASDR 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 CJul 8, 2002 · Pac CT4ASDR 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.Jul 7, 2002 · Cessna 404CESSNASDR CA020719007Crankshaft · cracked(CAN) CRANKSHAFT CRACKED - PIECE FROM COUNTERWEIGHT BROKEN - MISALIGNMENT CAUSED CAMSHAFT TO SHEAR 2 VALVE FACES DAMAGED.Jul 4, 2002 · Piper PA31350SDR 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.Jul 1, 2002 · Cessna 182QSDR 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.Jul 1, 2002 · N5859Q · Mooney M20ESDR 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.Jun 25, 2002 · Hoacau HK36RSDR AUS20020612Camshaft · worn(AUS) CAMSHAFT LOBES AND ASSOCIATED LIFTERS (3OFF) BADLY WORN.Jun 18, 2002 · Mudry CAP10BSDR 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-CJun 11, 2002 · Cessna A185FSDR 2002FA0000973Crankcase · crackedCRACK 1.3750 INCH OUT OF THE UPPER REAR CYLINDER BASE STUD, AT THE ONE OCLOCK POSITION.Jun 6, 2002 · N6124Z · Cessna U206GSDR 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 AMay 30, 2002 · N61858 · Cessna 180KSDR 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 AMay 30, 2002 · N61858 · Cessna 180KSDR AUS20021112Bolt · failed(AUS) NO6 CYLINDER UPPER THROUGH BOLT FAILED.May 22, 2002 · Cessna 310RSDR 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 CAMay 15, 2002 · N38996 · Piper PA32300SDR 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 UPMay 14, 2002 · Cessna 182SSDR 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 PISMay 13, 2002 · N942CP · Beech 58TCASDR CA020530009Piston · broken(CAN) ENGINE RAN WELL NO VISIBLE PROBLEM. PIECE OF PISTON SKIRT BROKEN LOOSE HELD IN BY OIL RING AND CYLINDER CURVE ONLY.May 9, 2002 · Cessna 172B
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