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 2016FA0000650Lifter · damagedTHE SURFACE OF THE LIFTER THAT CONTACT THE CAMSHAFT ARE SPALLED AND CORRODED. REPLACED THE LIFTERS.Dec 8, 2016 · N185PR · Cessna A185FSDR 2016FA0000648Lifter · damagedTHE SURFACE OF THE LIFTER THAT CONTACT THE CAMSHAFT ARE SPALLED AND CORRODED. REPLACED THE LIFTERS.Dec 8, 2016 · N185PR · Cessna A185FSDR 2016FA0000647Lifter · damagedTHE SURFACE OF THE LIFTER THAT CONTACT THE CAMSHAFT ARE SPALLED AND CORRODED. REPLACED THE LIFTERS.Dec 8, 2016 · N185PR · Cessna A185FSDR 2016FA0000646Lifter · damagedTHE SURFACE OF THE LIFTER THAT CONTACT THE CAMSHAFT ARE SPALLED AND CORRODED. REPLACED THE LIFTERS.Dec 8, 2016 · N185PR · Cessna A185FSDR 2016FA0000645Lifter · damagedTHE SURFACE OF THE LIFTER THAT CONTACT THE CAMSHAFT ARE SPALLED AND CORRODED. REPLACED THE LIFTERS.Dec 8, 2016 · N185PR · Cessna A185FSDR 2016FA0000644Lifter · damagedTHE SURFACE OF THE LIFTERS WHICH CONTACT THE CAMSHAFT IS SPALLED AND CORRODED. REPLACED THE LIFTERS.Dec 8, 2016 · N185PR · Cessna A185FSDR 2016FA0000643Lifter · damagedTHE SURFACE OF THE LIFTERS, WHICH CONTACT THE CAMSHAFT HAVE SPALLED AND CORRODED. THE LIFTERS WERE REPLACED.Dec 7, 2016 · N185PR · Cessna A185FSDR 2016FA0000588Timing Chain · failedDURING CRUISE BACK FROM A CROSS COUNTRY. THE LEFT ENGINE LOST POWER TO 30% LOAD. STARTED THEIR DECENT FOR PROVO AIRPORT. AFTER LANDING THE PROPELLER STOPPED ROTATING. THE AIRCRAFT WAS PULLED IN THE NEXT MORNING AND IT WAS DETERMINED THAT THE TIMING CHAIN HDec 2, 2016 · N455AM · Diamon DA42NGSDR 2016FA0000578Pushrod · scoredPUSHRODS SHOW SIGNS OF SCORING AFTER OVERHAUL ON MULTIPLE ROCKER AND PUSHROD MATING SURFACES. THIS INSTANCE THE ENGINE HAS 25 HOURS TSO WITH NEW PUSHRODS AND ROCKERS, AFTER INSPECTING ONE CYLINDER AND EVIDENCES SHOWS SCORING, WE REQUESTED MAINTENANCE PERFORM Nov 23, 2016 · N922MK · Cessna 182TSDR 2016FA0000515Washer · fragmentedONE COUNTERWEIGHT WASHER FOUND TO BE FRACTURED INTO THREE PIECES, BUT MAJORITY OF THE WASHER AND MAJORITY OF THE SNAP-RING WAS IN PLACE AND HAD NOT ALLOWED THE COUNTERWEIGHT PIN TO ESCAPE. MISSING FRAGMENTS WERE NOT RECOVERED FROM THE INTERNAL ENGINE SURFACES.Oct 18, 2016 · N510B · Bnorm BN2SDR 2016FA0000513Bolt · shearedDURING START FOR MAINTENANCE THE PROPELLER JERKED TO A STOP. SUBSEQUENT START ATTEMPTS SHOWED NO MOVEMENT OF PROPELLER WHILE STARTER WAS RUNNING. REMOVAL OF THE STARTER AND STARTER ADAPTER REVEALED ALL SIX BOLTS THAT ATTACH THE LARGE GEAR TO THE CRANKSHAFT HADOct 18, 2016 · N12LC · Cirrus SR22SDR 2016FA0000498Piston Ring · out of alignmentDURING TAKE OFF, WITH GLIDER IN TOW, AIRCRAFT EXPERIENCED AN UNCOMMANDED ENGINE SHUT DOWN. INVESTIGATION REVEALED THAT THE NR 3 PISTON RINGS WERE NOT INSTALLED PROPERLY.Oct 12, 2016 · N6984B · Piper PA18SDR FQAR20161010034Tube · bentPILOT REPORTED ON PREFLIGHT ENGINE RUN, THE MAP GAUGE INDICATED A 4" SPLIT AND THE LEFT ENGINE PRODUCED SMOKE. THE PILOT RETURNED TO THE APRON AND NOTED OIL LEAKING FROM COWLING. INSPECTION REVEALED THE LEFT ENGINE NR 2 CYLINDER EHXAUST PUSH ROD TUBE WAS BENT Oct 10, 2016 · N303PA · Piper PA44180SDR 2016FA0000478Crankshaft · failedCRANKSHAFT FAILURE DURING TAKEOFF WITH NO REPORTED ENGINE ROUGHNESS OR LOSS OF POWER. CRANKSHAFT FOUND TO BE BROKEN AT COUNTERWEIGHT ATTACHMENT FLANGE RESULTING IN METAL FRAGMENTS CIRCULATING THROUGHOUT ENGINE RESULTING IN SEVERE DAMAGE TO ENGINE CASE AND ALL Oct 10, 2016 · N9453DSDR HYIA20160913159Piston Ring · damagedCYLINDER REMOVED DUE TO LOW COMPRESSION AT INSPECTION; EXHAUST VALVE DISPLAYS EVIDENCE OF HEAT DAMAGE AND PISTON RINGS SHOW DEFECTS.Sep 28, 2016 · N525RH · Cessna 402CSDR 2016FA0000456Exhaust Header · crackedRIGHT TURBOCHARGER TRANSITION ASSEMBLY WAS FOUND CRACKED FRONT AND BACK DURING ANNUAL INSPECTION OF AIRCRAFT. PILOT REPORTED CO DETECTOR CHIRPING ON TRIP TO ANNUAL. THIS CRACKED PART IS ATTACHES THE TURBOCHARGER TO THE RIGHT EXHAUST, FORWARD AND BELOW THE CABSep 26, 2016 · N115RW · Columb LC41550FG400SDR 2016FA0000637Gear · damagedMETAL FOUND ON OIL SUMP DRAIN PLUG. STARTER WAS REMOVED TO INSPECT STARTER GEAR AND CRANK SHAFT CLUSTER GEAR AND FOUND DAMAGED TEETH ON GEARS. METAL DEBRIS ALSO FOUND IN OIL PRESSURE RELIEF VALVE.Sep 1, 2016 · N627DC · Diamon DA20C1SDR 2016FA0000636Gear · damagedWHILE PERFORMING 100 INSPECTION, FOUND METAL FRAGMENTS ON THE OIL DRAIN SUMP PLUG. REMOVED THE STARTER TO INSPECT THE STARTER AND CRANK GEAR TO SEE IF THERE WAS SIGN OF DAMAGE AND FOUND THAT THE TEETH ON CRANK GEAR AS WELL AS STARTER GEAR SHOWED DAMAGE. CHESep 1, 2016 · N568D · Diamon DA20C1SDR T22R R/O9856Crankshaft · brokenCRANKSHAFT BROKE AT THE NR 4 CONNECTING ROD JOURNAL, SEPARATION OCCURRED AT THE NR 5 CHEEK COUNTING FROM THE FRONT OF CRANKSHAFT.Aug 29, 2016 · N365ES · Cessna 172RSDR HYIA20160818083Piston Ring · leakingCYLINDER REMOVED DUE TO LOW COMPRESSION AT INSPECTION. SHOWS EVIDENCE OF PISTON RING BLOW-BY.Aug 17, 2016 · N375R · Cessna 402CSDR T22R201607260001Crankshaft · mismanufacturedCRANKSHAFT NR 1 BOTTOM BLADE BUSHING, LOCATED APPROXIMATELY .100 OFFSET ON ITS HORIZONTAL PLAIN WHICH ALLOWED COUNTERWEIGHT WHEN ASSEMBLED TO CRANKSHAFT BLADE TO CONTACT INSIDE EDGE OF COUNTERWEIGHT CAUSING DAMAGE TO INSIDE EDGE OF COUNTERWEIGHT.Jul 26, 2016 · N3864SDR 2016FA0000319Exhaust Valve · stuckPILOT REPORTED INTERMITTENT LOSS OF POWER ALONG WITH ENGINE RUNNING ROUGH. CHECKED EXHAUST VALVE GUIDE CLEARANCE IAW SB-388C AND FOUND 1 EXHAUST VALVE GUIDE WITH .002 CLEARANCE. (THE MINIMUM IS .015) REAMED THE GUIDE, ALONG WITH 3 OTHERS THAT WERE BELOW LIMIJul 2, 2016 · N467NH · Robsin R44RAVENIISDR HYIA201608003018Ring · damagedCYLINDER REMOVED DUE TO LOW COMPRESSION AT INSPECTION. PISTON SHOWS SIGNS OF DAMAGED RINGS.Jun 30, 2016 · N618CA · Cessna 402CSDR LC1R201605230001Piston · damagedDURING A PREPURCHASE INSPECTION, A BORESCOPE INSPECTION OF ALL CYLINDERS WAS PERFORMED. FOUND EVIDENCE OF AN EXHAUST VALVE STRIKE ON THE PISTON OF NR 5 CYLINDER. NOTED NO OTHER DAMAGE IN NUMBER 5 CYLINDER AND ENGINE OPERATION WAS ACCEPTABLE DURING PRE-INSPECMay 23, 2016 · N122C · Boeing N2S5SDR PAIR201605203338Crankcase · crackedCOMPLIED WITH AD 77-13-22 & FOUND A CRACK APPROX 1 INCH LONG IN THE CRANKCASE CRITICAL AREA EXTENDING DOWNWARD NEAR THE UPPER FWD STUD OF NR 1 CYLINDER. ENG MANUFACTURED IN 1977 WITH TOTAL TIME OF 765.5 HOURS, 109.6 HOURS SINCE OVERHAUL IN 2006.May 19, 2016 · N1880L · Beech V35BSDR P9KA2016070701Crankcase · crackedDURING A ROUTINE ANNUAL INSPECTION, AN ONGOING OIL LEAK WAS TRACED TO A CRACK IN THE RIGHT HALF OF THE CRANKCASE BETWEEN THE NR 5 CYLINDER AND THE ALTERNATOR MOUNTING BOSS. THE ENGINE WAS REPLACED.May 8, 2016 · N749KP · Cessna U206GSDR HYIA20160414001Crankshaft · damagedPILOT REPORTED PARTIAL LOSS OF POWER IN FLIGHT ON RT ENG, ENGINE RUNNING ROUGH. AFTER BOTH ENGS FULL POWER FOR ABOUT 30 SECONDS, POWER CAME BACK. ENGS WERE BROUGHT BACK TO CRUISE & THE RT ENG BEGAN RUNNING ROUGH. PERFORMED A PRELIMINARY INSPECTION & FOUND MApr 7, 2016 · N510BN · Bnorm BN2B20SDR HYIA20160323002Nut · crackedDURING INSPECTION, LT ENG SN 1004575, IT WAS DISCOVERED THE UPPER THROUGH BOLT NR 1 MAIN BEARING SADDLE RT NUT FRACTURED, CAUSING THE THROUGH BOLT TO MIGRATE OUT OF POSITION.Mar 21, 2016 · N68752 · Cessna 402CSDR BIER2016031500001Case · crackedCUSTOMER ARRIVED AT REPAIR STATION STATING HE HAD AN OIL LEAK. ENGINE COWLING WAS REMOVED TO DETERMINE SOURCE OF LEAK. INITIAL INSPECTION AND REPAIR WAS ON LEAKING CYLINDER STUDS ON NR 4 CYLINDER, LT SIDE OF ENGINE. NR 4 CYLINDER WAS SENT OFF FOR HONING AND Mar 14, 2016 · N2730P · Lancar LC41550FGSDR 2016FA0000280Plug · missingENGINE CYLINDERS REMOVED DUE TO LOW COMPRESSION, FOUND PISTON PLUG BUTTONS MISSING ON ALL CYLINDERS. SCORING ON CYLINDER WALLS 48.9 HRS SINCE SUDDEN STOPPAGE INSPECTION.Feb 19, 2016 · N3004 · Amtr SIDEWINDERSDR EVGR201602180001Crankcase · crackedCRACKED CRANKCASE, LT SIDE BETWEEN CYLINDERS NR 2 AND NR 4 INTO THE NR 2 CYLINDER APERTURE. CRACKS WERE DISCOVERED AT A ROUTINE 50 HOUR INSPECTION AND SERVICING WHILE TRYING TO ADDRESS AN OIL LEAK.Feb 15, 2016 · N342EA · Cessna U206GSDR CA160209006Camshaft · galled(CAN) DURING REGULAR OIL CHANGE ABNORMAL AMOUNTS OF FERROUS METAL NOTED IN OIL FILTER INSPECTION. CYLINDERS NR 4 & 6 REMOVED FOR INSPECTION & DISCOVERED GALLING DAMAGE TO CYLINDER NR 6 EXHAUST LOBE & CAM FOLLOWER. ENGINE REMOVED FOR REPAIR.Feb 5, 2016 · Piper PA31350SDR PAIR2015010801496Crankcase · crackedPILOT NOTED OIL LEAK FROM ENGINE AFTER LANDING. MAINTENANCE FOUND A CRACK, APPROXIMATELY 1" LONG, IN THE LT SIDE CRANKCASE APPROXIMATELY 1" AFT OF THE 7TH STUD FOR THE NR 2 CYLINDER WHICH IS LOCATED BEHIND THE OIL COOLER. UNABLE TO SEE THIS CRACK WITH THE OIJan 8, 2016 · N279C · Cirrus SR22SDR 2016FA0000074Camshaft · crackedDURING CLIMB OUT, PIC HEARD ENGINE NOISE. AT 6000 AGL ENGINE SHUTDOWN AND PILOT LANDED AT NEAREST AIRPORT. A SUBSEQUENT ENGINE TEARDOWN REVEALED APPROXIMATELY 12 CAM GEAR TEETH DAMAGED ON PN 655516A.Dec 26, 2015 · N61SM · Beech A36SDR 2016FA0000038Piston Ring · brokenNR 1 AND NR 2 TOP RING LAN FAILURE. ENGINE LOSS OF COMRESSION. FOUND LOOKING AT TOP OF PISTON FROM ABOUT 7 O`CLOCK POSITION TO 11 O`CLOCK RING LAN MISSING AND BROKEN RINGS. OPERATION AT 11,000 FT, 68 PERCENT POWER ENGINE DEVELOPED A VIBRATION. POSSIBLE DEFDec 20, 2015 · N3308Q · Cessna 320DSDR 2015FA0000636Piston · galledENGINE IS LIQUID COOLED, 2 STROKE WITH 10 SINCE COMPLETE REBUILD BY MFG AUTHORIZED FACILITY. AFTER PROPER ENGINE WARM UP, MAG CHECK, FLIGHT CONTROL CHECK. BEGAN TAKEOFF ROLL. AT ABOUT 200 FT AGL, THERE WAS A MAJOR RPM DROP. TURNED ON AUXILIARLY FUEL PUMP, VDec 8, 2015 · N4385C · Amtr RANSS10SDR CA151118006Crankshaft · damaged(CAN) METAL FOUND IN FILTER DURING MAINTENANCE. ENGINE DISASSEMBLED AND FOUND CAUSE TO BE OIL TRANSFER TUBE IN FRONT MAIN HAD BROKED IN HALF AND TUBE HAD MOVED OUT OF MAIN JOURNAL AND STARTED TO GOUGE INTO MAIN BEARING. POSSIBLY DAMAGED AT MFG AS TUBE ENDS ARNov 17, 2015 · Piper PA28161SDR CA151106001Bearing · failed(CAN) AFTER SCHEDULED OUT OF PHASE OIL AND FILTER CHANGE GROUND RUN. NOTICED LT ENGINE PROPELLER HARD TO MOVE AND NO FORE AND AFT PLAY IN CRANKSHAFT. ENGINE REMOVED AND SENT FOR REPAIR. ENGINE SHOP REPORTED THAT BOTH HALF OF MIDDLE CRANKSHAFT BEARING CORNERNov 5, 2015 · Piper PA44180SDR 2015FA0000558Bolt · brokenPISTON CONNECTING ROD BOLT BROKE CAUSING PISTON ROD TO PENATRATE ENGINE CRANKCASE CAUSING OIL DEPLETION AND ENGINE FAILURE.Oct 30, 2015 · N999AR · Cessna 172NSDR CA151027008Crankcase · cracked(CAN) DURING 100 HR INSPECTION FOUND ALTERNATOR MOUNTING BRACKET AND BOLTS WORN CAUSING A VIBRATION WHICH BROKE ALTERNATOR TIGHTENER MOUNTING BOLT AND CRACKED CRANKCASE BOSS AT THIS LOCATION. ALTERNATOR MOUNTING BOLTS AND ALTERNATOR MOUNTING ATTACH HOLES SEVEOct 26, 2015 · Piper PA30SDR 2015FA0000605Bushing · failedAIRCRAFT CAME IN FOR A 50 HR INSPECTION. WHEN ENGINE OIL SCREEN WAS PULLED, IT WAS FOUND TO HAVE A LARGE AMOUNT OF METAL IN IT. UPON INVESTIGATION IT WAS FOUND THAT THE NR 2 CYLINDER CONNECTING ROD BUSHING, PN 530658 WAS SIDINGRATING. NOTE: AT FIRST OIL CHAOct 16, 2015 · N1541F · Cessna 185DSDR CA151013014Main Bearing · failed(CAN) UNKNOWN TYPE OF METAL FOUND IN THE OIL FILTER SCREEN. ENGINE SENT FOR OVERHAUL. REAR MAIN BEARING FAILED.Oct 8, 2015 · Dhav DHC2MKISDR 8PCR20151027001Nut · fracturedDURING ROUTINE INSPECTION, TWO THROUGH BOLT NUTS, TWELVE POINT PN 652541, WERE FOUND FRACTURED & LAYING IN THE BOTTOM OF THE ENG COWLING. THE ENG HAS BEEN REMOVED TO BE DISASSEMBLED, INSPECTED & OVERHAULED. THE NUTS WERE RETURNED TO THE ENG MFG FOR FURTHER EOct 8, 2015 · N161TA · Cessna 402CSDR UOIA201510071114Stud · brokenLEFT ENG CYLINDER NR 3 CRANKCASE STUDS BROKEN.Oct 6, 2015 · N906GD · Bnorm BN2A26SDR CA151002004Cap · failed(CAN) PILOT REPORTED ROUGH RUNNING ENGINE WITH SUBSEQUENT POWER LOSS AT CRUISE SETTING. FORCED LANDING IN FIELD UNEVENTFUL. INITIAL ENGINE INSPECTION REVEALED LOW COMPRESSION ON CYLINDER 1, CONSISTENT WITH INTAKE VALVE LEAK. CYLINDER REMOVED AT NEXT OCCASIONOct 2, 2015 · Cessna 150MSDR 8PCR20151001003Nut · fracturedDURING ROUTINE INSPECTION, A THRU-BOLT NUT, TWELVE POINT PN 65254, WAS FOUND FRACTURED & LAYING IN THE BOTTOM OF THE ENG COWLING. THERE WERE NO SIGNS OF CORROSION ON THE NUT. THE ENG WAS REMOVED TO BE DISASSEMBLED, INSPECTED & OVERHAULED. THE NUT WAS RETURNOct 1, 2015 · N678JG · Cessna 402CSDR 8PCR20151001002Nut · fracturedDURING ROUTINE INSPECTION, A THRU-BOLT NUT, TWELVE POINT PN 652541, WAS FOUND FRACTURED & LAYING IN THE BOTTOM OF THE ENG COWLING. THERE WERE NO SIGNS OF CORROSION ON THE NUT. THE ENG WAS REMOVED TO BE DISASSEMBLED, INSPECTED & OVERHAULED. THE NUT WAS RETUROct 1, 2015 · N256CA · Cessna 402CSDR 8PCR20151001001Connecting Rod · out of limitsDURING REPLACEMENT OF THE NR 2 CYLINDER, THE CONNECTING ROD BUSHING, PN 530658, HAD MOVED FROM THE CONNECTING ROD BORE IN A REARWARD DIRECTION & EXHIBITED MISSING MATERIAL FROM CONTACT WITH THE PISTON PIN BORE BOSS. THE ENG WAS COMPLETELY DISASSEMBLED FOR FUROct 1, 2015 · N3249M · Cessna 402CSDR CA150923010Crankshaft · damaged(CAN) END PLUG SEPARATED FROM CRANKSHAFT, FLOATED AROUND IN PROPELLER HUB. VIBRATION ONLY FELT BELOW 1200 RPM.Sep 22, 2015 · Cessna 150MSDR N3BA2016100500003Nut · brokenNR 4 CYLINDER'S CONNECTING ROD END CAP SEPARATED FROM CONNECTING ROD. INSPECTION OF ENGINE REVEALED THAT 1 OF THE 2 ATTACHMENT NUTS THAT SECURES END CAP TO CONNECTING ROD CRACKED INTO 4 PIECES ALLOWING END CAP TO STOP SECURING CONNECTING ROD TO CRANKSHAFT. COSep 18, 2015 · N38CJ · Cessna 402C
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