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 AU000262Crankcase · cracked(AUS) CRANKCASE CRACKED IN THE AREA BETWEEN NR 2 AND NR 4 CYLINDERS.Mar 3, 2000 · Cessna 152SDR CA000329043Crankshaft · broken(CAN) CRANKSHAFT FOUND BROKEN AT COUNTERWEIGHT.Mar 3, 2000 · Piper PA31SDR 20000713SH010Casting · leakingDURING ANNUAL INSPECTION, OIL WAS FOUND LEAKING NEAR BOTTOM OF ROCKER COVERS. THE LEAK WAS TRACKED TO THE CASTING LINE BETWEEN THE VALVE GUIDES IN THE FIN AREA. LOCATION OF THE PROBLEM IS THE SAME ON ALL 4 CYLINDERS. LEAK SEEMED TO BE CAUSED BY POROSITY IN Feb 22, 2000 · N1970B · Luscom 8ASDR CA000301029Lifter · chippedNR 1 VALVE LIFTER WAS FOUND CHIPPED(CAN)Feb 22, 2000 · Cessna 172NSDR 20000407SH002Lifter · damagedDURING THE REMOVAL OF THE NR 3 CYLINDER, THE EXHAUST VALVE LIFTER WAS INSPECTED AND FOUND TO HAVE CHIPS OF MATERIAL MISSING FROM THE CORNERS NEAR THE LOWER FACE. THE FACE OF THE LIFTER AND CAM LOBE WERE NOT FOUND TO HAVE ANY DEFECTS. (X)Feb 21, 2000 · N952CC · Cessna 182PSDR AU000188Camshaft · spalled(AUS) CAMSHAFT PN LW16508 LOBE SPALLED. CORRESPONDING TAPPET PN LW16812 ALSO SPALLED. METAL CONTAMINATION OF OIL SYSTEM.Feb 16, 2000 · Piper PA44180SDR 20000330SH012Bearing · damagedDURING ENGINE TEAR DOWN DUE TO SUDDEN STOPPAGE, INSPECTION OF THE BEARINGS FOUND 4 OUT OF 10 BEARING HALVES WERE FOUND WITH EXCESSIVE CRACKING ON THE SURFACE. ENGINE WAS ASSEMBLED 12-28-99, AND PUT INTO SERVICE ON 1-29-00, AND WAS DISASSEMBLED 2-25-00. CAUSEFeb 15, 2000 · N4667Q · Cessna 210LSDR 20000330SH011Bearing · crazedDURING ENGINE TEAR DOWN DUE TO SUDDEN STOPPAGE. INSPECTION OF THE BEARINGS FOUND 7 OUT OF 12 BEARING HALVES FOUND WITH EXCESSIVE CRAZING ON THE SURFACE. ENGINE WAS ASSEMBLED 12-28-99 AND PUT INTO SERVICE ON 1-29-00 AND WAS DISASSEMBLED 2-25-00. SUBMITTER STFeb 15, 2000 · N4667Q · Cessna 210LSDR CA000301005Rod · broken(CAN) NR 2 CYLINDER LINK ROD FAILED AT LINK PIN THEN BROKE OFF 1 INCH BELOW PISTON PIN.Feb 9, 2000 · Dhav DHC2MK1SDR 2000ZZZX616Piston · corrodedENGINE WAS 438 HOURS FROM FACTORY REMANUFACTURE. REMOVED LONER PLUG FROM NR 3 CYLINDER AND FOUND CYLINDER HAD EXCESSIVE OIL IN PLUG. REMOVED CYLINDER AND FOUND THE OIL CONTROL RING LAND AND PISTON PIN HOLE WERE EXCESSIVELY PITTED AND CORRODED. ENGINE WAS REFeb 4, 2000 · N2336V · Piper PA31310SDR CA000301048Crankcase · cracked(CAN) ONE INCH CRACK AT CRANKCASE HALF NEXT TO NR 2 CYLINDER UPPER FRONT HOLD-DOWN STUD.Feb 1, 2000 · Cessna 172NSDR AU000330Crankcase · cracked(AUS) CRANKCASE CRACKED IN NUMEROUS PLACES. CRANKCASE HAD BEENPREVIOUSLY WELD REPAIRED.Jan 31, 2000 · Piper PA34200TSDR AU000090Bearing · failed(AUS) RIGHT ENGINE FRONT BEARING PICKED UP ON CRANKSHAFT. ENGINE SEIZED.Jan 20, 2000 · Piper PA31350SDR AU000026Crankshaft · failed(AUS) LEFT ENGINE STOPPED. SUBMITTER SUSPECTED CRANKSHAFT FAILURE.Jan 11, 2000 · Cessna 404CESSNASDR 2000ZZZX567Gear · damagedON ROLL-OUT AFTER LANDING, PILOT OBSERVED THE ENGINE HAD SHUT DOWN. ON ATTEMPTED START, THERE WAS NO PROPELLER MOVEMENT. STARTER WAS CHECKED ON THE BENCH, AND STARTER ADAPTER WAS REMOVED FOR ENGINE TO REVEAL SEVERE GEAR DAMAGE TO THE MAIN CRANKSHAFT GEAR ANDJan 11, 2000 · N421PJ · Cessna 421CSDR 2000ZZZX604Crankshaft · brokeCRANKSHAFT BROKE NEAR REAR JOURNAL. AD 99-09-17 C/W BY CONTINENTAL AFTER 85 HOURS TIS. DISASSEMBLED ENGINE AND MAGNIFLUXED CRANK PER AD. CRANKSHAFT FAILED 300 HOURS LATER. (X)Jan 3, 2000 · N2255S · Cessna 210LSDR 20000413SH045Shaft · damaged1,590.6 HRS SINCE FACTORY NEW ENGINE INSTALLED. CRANKSHAFT APPEARED TO BE BINDING WITH SPARK PLUGS REMOVED. METAL (STEEL & ALUM) IN SCREENS. UPON REMOVAL OF MAGNETOS, OBSERVED LT IDLER GEAR COCKING BEFORE IT TURNED, WHILE MOVING CRANKSHAFT FLANGE BACK AND FOJan 2, 2000 · N5986Z · Piper PA18150SDR 2003FA0001090Flange · crackedFOUND CRACKED CRANKSHAFT AT FLANGE RADIUS. SUGGEST INSTALLATION OF 3 BLADE PROP TO REDUCE LOAD ON CRANKSHAFT.Jan 1, 2000 · N87WY · Pitts S2BSDR 2000ZZZX404Rod Bearing · wornIN-FLIGHT, NR 3 CONNECTING ROD BEARING FAILED POSSIBLY DUE TO WEAR. EXCESSIVE HEAT AND EXPANSION BUILD-UP AROUND THE NR 3 CONNECTING ROD CRANKPIN AND CAUSING THE ROD BOLTS TO BREAK APART AT THE SHANK. THE NR 3 CONNECTING ROD IS CONNECTED FROM THE CRANKSHAFT Dec 24, 1999 · N4708T · Beech A23ASDR 99ZZZX4517Bushing · misinstalledALL CONNECTING ROD BUSHINGS FOUND CRACKED. FOUND BUSHINGS INSTALLED AT 90 DEGREE ANGLE VICE 45 DEGREE ANGLE PER SERVICE INSTRUCTION. THIS WAS AN ICELANDIC AIRCRAFT. HOWEVER, THE ENGINES WERE OVERHAULED BY LYCOMING.Dec 13, 1999SDR 2000ZZZX262Camshaft · failedMETAL FOUND IN OIL FILTER DURING ROUTINE INSPECTION. ENGINE CAM LOB FAILURE. POSSIBLE INCORRECT HARDENEING PROCEDURES ON CAM.Dec 13, 1999 · N9934Q · Cessna 172MSDR 99ZZZX4672Crankshaft · failed100 HOURS AFTER INSTALLATION OF A NEW TCM CRANKSHAFT AT OVERHAUL, THE ENGINE EXPERIENCED A CATASTROPHIC FAILURE. DURING TEAR-DOWN, ONE COUNTERWEIGHT ROLLER, ONE RETAINING PLATE, AND ONE RETAINING RING WERE FOUND UNDAMAGED AMONG THE DEBRIS IN THE OIL SUMP. THDec 10, 1999 · N6AC · Beech 58SDR 99ZZZX4440Connecting Rod · failedAIRCRAFT ENGINE SEIZED IN-FLIGHT AND CRACKED LEFT ENGINE CASE HALF. WEATHER CONDITIONS DID NOT EFFECT OUTCOME. ENGINE HAS BEEN 50-HOUR, 100-HOUR, AND ANNUALIZED ITS ENTIRE LIFE. OIL ANALYIS WAS TAKEN LAST. NO ABNORMAL SIGNS OF WEAR. POSSIBLE CAUSE SHOWED Dec 9, 1999 · N5244V · Cessna 172RGSDR 99ZZZX4653Crankshaft · crackedTRANSIT ACFT LANDED EN ROUTE WITH LT ENGINE SHUT DOWN DUE IN-FLIGHT OIL LEAK. CLEANED ENG AND DID A SHORT RUN AND FOUND OIL COMING FROM PROP SHAFT AREA. REMOVED PROP AND CHECKED O-RING AND IT CHECKED OK. UPON FURTHER INVEST, APPEARED TO BE A CRACK BEHIND PRNov 24, 1999 · N8375N · Piper PA34220TSDR CA991210094Plug · leaking(CAN) FOUND CRANKSHAFT PLUG INSTALLED INCORRECTLY CAUSING LOSS OF OIL.Nov 22, 1999 · Cessna 172NSDR 99ZZZX4556Camshaft · failedFERROUS MATERIAL FOUND IN OIL FILTER. ENGINE DISASSEMBLED, PROBLEM FOUND TO BE FAILED CAMSHAFT AND LIFTER BODIES.Nov 22, 1999 · N9269T · Cessna 180SDR 99ZZZX4547Camshaft · making metalFERROUS MATERIAL FOUND IN OIL FILTER. ENGINE DISASSEMLBED, PROBLEM FOUND TO BE FAILED CAM AND LIFTER BODIES.Nov 22, 1999 · N79JP · Cessna 182QSDR 99ZZZX4546Camshaft · making metalFERROUS MATERIAL FOUND IN OIL FILTER. ENGINE DISASSEMBLED, PROBLEM FOUND TO BE FAILED CAMSHAFT AND LIFTER BODIES.Nov 22, 1999 · N7318Q · Cessna U206FSDR 99ZZZX4408Piston · failedAIRCRAFT LOST POWER IN CLIMB AND MADE AN OFF-FIELD LANDING. FOUND CYLINDER NR 1 BROKEN APPROXIMATELY 2 INCHES UP FROM BASE AND SEPARATED FROM CYLINDER BASE. NR 1 PISTON FOUND BROKEN THROUGH PISTON PIN BORE. UPPER HALF OF PISTON REMAINED IN CYLINDER WHILE LONov 22, 1999 · N4822H · Mooney M20KSDR 20000523SH002Piston · failedENGINE PISTON ON NR 4 CYLINDER HEAD SEPARATED FROM BASE BELOW THE OIL RING LAND. TWISTED ROD AND CAUSED ENGINE TO FAIL. ENGINE FAILURE ON CLIMB-OUT AT ABOUT 700 FEET AGL AT CLIMB POWER. ENGINE TT SN, 1,445 HOURS. (X)Nov 21, 1999 · N5006L · Conaer LA4200SDR CA991209051Stud · broken(CAN) NR 3 CYLINDER FLANGE STUDS BROKEN.Nov 19, 1999 · Beech E18S9700SDR CA991210093Crankshaft · failed(CAN) A SECTION OF THE CRANKSHAFT COUNTER WEIGHT LUG FAILED.Nov 15, 1999 · Piper PA31SDR 99ZZZX4385Tube · missingPURCHASED NEW CRANKSHAFT PN 649898 FROM TELEDYNE CONTINENTAL AND RECEIVED WITH ALL OIL SUPPLY TUBES MISSING PN 629757 TUBE. ALSO, FOUND LOOSE TUBE ON ANOTHER CRANKSHAFT. SUBMITTER SUGGESTED A THOROUGH INSPECTION OF ANY NEW PART OR ASSY.Nov 9, 1999SDR 99ZZZX4384Pin · missingPURCHASED NEW CRANKSHAFT P/N 649898 FROM TELEDYNE CONTINENTAL AND RECEIVED WITH COUNTERWEIGHT PIN PN 643626-105 MISSING ON REAR COUNTERWEIGHT ASSY PN 639195. SUBMITTER RECOMMENDED THOROUGH INSPECTION ON ANY NEW PART OR ASSY.Nov 9, 1999SDR 99ZZZX4432Crankshaft · failedCRANKSHAFT BROKEN AT NR 6 CONNECTING ROD PIN. OFF-AIRPORT LANDING WITH NO DAMAGE OR INJURY.Nov 7, 1999 · N7638T · Cessna 172ASDR 20000623SH001Bearing · spunNR 6 ROD BEARING SPUN MANGLED BEARING SHELL.. REMNANTS FOUND IN SUMP. NR 4 ROD BEARING SPUN, BUT WAS STILL INTACT. ALL OTHER ROD BEARINGS SHOWED DISTRESS AS FROM BEING HAMMERED. IT WAS DETERMINED THE ROD BEARING DISTRESS/FAILURE WAS THE RESULT OF STANDARD Nov 2, 1999 · N4058R · Piper PA32300SDR CA991208091Bearing · disintegrated(CAN) ENGINE EXPERIENCED A NR 6 CONNECTING ROD BEARING FAILURE. SDR SUBMITTER HAS EMPLOYED AN OIL ANALYSIS PROGRAM BUT THE RESULTS OF WHICH, THOUGH SHOWING SOME INDICATIONS OF BREAKDOWN, WERE WRONGLY INTERPRETED.Oct 21, 1999 · Cessna 172SDR CA991103001Lifter · failed(CAN) HYDRAULIC LIFTERS FAILING TO KEEP CONTACT WITH CAMS. NEW P/N INSTALLED.Oct 13, 1999 · Cessna 182NSDR CA991027040Crankshaft · failed(CAN) CRANKSHAFT FAILED - THERE ARE MAINTENANCE LOG ENTRIES OF PREVIOUS PROP STRIKE.Oct 10, 1999 · Cessna U206GSDR AU990981Crankshaft · wrong part(AUS) LEFT ENGINE CRANKSHAFT HAD AN INCORRECT CRANKSHAFT FITTED.Oct 6, 1999 · Piper PA31350SDR CA991028027Washer · cracked(CAN) CRACK ON EXHAUST VALVE GUIDE SPRING RETAINER WASHER CAUSING LOW EXHAUST VALVE.Oct 5, 1999 · Beech E18S9700SDR AU991097Crankcase · cracked(AUS) RIGHT CRANKCASE HALF CRACKED FROM THE ALTERNATOR MOUNT FLANGE TOWARDS NR 5 CYLINDER.Oct 5, 1999 · Beech F33ASDR AU991072Plug · missing(AUS) CRANKCASE OIL GALLERY PLUG FELL OUT OF THE SUCTION SIDE OF THE OIL PUMP ALLOWING AIR INTO THE SUCTION LINE. SUSPECT PLUG INCORRECTLY FITTED DURING OVERHAUL.Oct 3, 1999 · Cessna 210LSDR CA991028056Crankcase · cracked(CAN) CRACK EMANATING FROM NR 2 CYLINDER STUD FLANGE TO BLOCK 1.Oct 2, 1999 · Piper PA28R201SDR 20000531SH011Crankcase · crackedBROKEN CYLINDER BASE STUDS AND 7TH STUD WERE FOUND AT NR 3 CYLINDER LOCATION. CRANKCASE STRESS WAS CAUSE OF CRANKSCASE TO CRACK (4 INCH CRACK) AT NR 3 CYLINDER. HIGH MANIFOLD PRESSURE MAY HAVE CONTRIBUTED TO THE CAUSE. ENGINE IS RATED TO 41 INCHES M/P FOR Sep 29, 1999 · N5343J · Cessna 340ASDR AU991098Crankcase · cracked(AUS) LEFT CRANKCASE HALF CRACKED IN THE AREA OF NR 2 AND NR 3 MAIN BEARING SADDLES.Sep 29, 1999SDR AU991062Crankshaft · failed(AUS) CRANKSHAFT BROKEN AT NR 1 CONNECTING ROD POSITION. NR 1 CONNECTING ROD BEARING SPINNING. CRANKCASE THRUST FACE WORN. INVESTIGATION FOUND THAT THE FAILURE WAS A RESULT OF FATIGUE INITIATING FROM A SMALL DEFECT ON THE CRANKSHAFT CHEEK ADJACENT TO THE SLUSep 22, 1999 · Piper PA30SDR AU990950Camshaft · cracked(AUS) CRANKCASE TUNNEL DIMENSIONS OUT OF LIMITS. CAMSHAFT CRACKED.Sep 14, 1999SDR CA990915072Camshaft · spalling(CAN) SEVERE SPALLNG OF REAR CAM LOBE.Sep 9, 1999 · Cessna 310QSDR 99ZZZX3677Cranshaft · crackedREMOVED ENGINE DUE TO FERROUS METAL IN FILTER. FOUND CAMSHAFT WORN AND LIFTER SPALLED. UPON FURTHER INSPECTION, FOUND NR 4 COUNTERWEIGHT ATTACHMENT ON CRANKSHAFT CRACKED AT COUNTERWEIGHT BUSHING. BUSHING HAS FOUR CRACKS. NO LOG ENTRY OF PROPELLER STRIKE.Sep 9, 1999 · N7652L · Piper PA31P
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