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 2012FA0000816Case · crackedDURING CRUISE FLIGHT THERE WAS AN INTERNAL ENGINE FAILURE RESULTING AN A CRACKED ENGINE CASE AND EMERGENCY LANDING. THE ENGINE WAS RETURNED FOR OVERHAUL.SDR ENEA2012F00235Crankcase · puncturedON SHORT FINAL, PILOT HEARD AN AUDIBLE BANG WITH ENGINE RUNNING SLIGHTLY ROUGH, MAKING A DIFFERENT NOISE AND NOT DEVELOPING FULL POWER. CONTINUED TO LANDING WITH OUT INCIDENT AND DURING TAXI TO TURN OUT STARTED ACCUMULATING OIL ON WINDSCREEN. REMOVED TOP COWSDR CA130322005Lifter · spalled(CAN) ENGINE WAS FOUND TO HAVE SIGNIFIGANT LIFTER SPALLING AND CAMSHAFT LOBE WEAR AFTER ONLY 197.7 HRS. TTSO AND THE SAME AMOUNT OF TIME ON THE FAILED PARTS BUT THEIR TIME IS TTSN. METAL WAS FOUND IN THE SCREEN ON ROUTINE INSPECTION. ENGINE OTHERWISE GAVE NOSDR JBZA201210261003Stud · brokenDURING AMT TROUBLESHOOTING OF THE NR 1 ENGINE ALTERNATOR INTERMITTENT, DISCOVERED CRANKCASE STUDS BROKEN, UNRELATED TO THE ALTERNATOR ISSUE, INITIATED THE DISASSEMBLY AND REMOVED CYLINDER, ALL NON-DESTRUCTIVE TESTING CHECKS OK, REPLACING THE STUDS, ALSO REPLASDR CA121015007Piston · damaged(CAN) ON LANDING, THE OIL PRESSURE ON THE LT ENGINE DROPPED TO 35 PSI WHEN THROTTLE AT IDLE. INSPECTION SHOWED OIL FROM BREATHER TUBE ON THE AIRFRAME. COMPRESSION CHECK IDENTIFIED THE NR 3 CYLINDER AT 0/80. CYLINDER REMOVED AND PISTON FOUND DAMAGED AT 2ND RISDR 2012FA0000742Crankcase · crackedDURING AN INSPECTION, CRANKCASE OF THE RT ENGINE WAS OBSERVED TO BE CRACKED BETWEEN THE NR 1 AND NR 3 CYLINDERS. THE ENGINE WAS REMOVED AND SENT OUT FOR REPAIR.SDR 2012FA0000658Rod Bolt · damagedENGINE FAILURE APPEARS TO HAVE BEEN CAUSED BY 1 ROD BOLT WITH INDICATIONS OF BEACH MARKS.SDR BSYA2012033Stud · brokenEN ROUTE FROM CLT TO ORL, APPROXIMATELY 90 MINUTES INTO THE FLIGHT THE RIGHT ENGINE STARTED BACKFIRING. THE PILOT PROCEEDED TO SHUT THE ENGINE DOWN AS A PRECAUTIONARY MEASURE AND DIVERTED TO SGJ AND LANDED SAFELY WITHOUT INCIDENT. MAINTENANCE INSPECTED AND FSDR CA130301005Tappet · failed(CAN) O/H ON O-320-E2D WITH NEW CAM AND TAPPET BODIES. SMOKE IN EXHAUST AT TAXI WHEN ENGINE WARM. OIL IN INDUCTION. CYLINDERS HONED AND CROSS HATCHED, ASSUMED TO BE THE PROBLEM) SMOKE AND OIL PROBLEM. NEW CYLINDERS INSTALLED. SMOKE AND OIL PERSISTS. ENGINE RESDR EPUA20120828001Pin · failedDURING A CHECK FLIGHT ON NR 1 ENGINE, OPERATION AFTER MAINT OF MIXTURE ROD END REPLACEMENT PN 89307-000, THE NR 1 ENGINE FAILED. MAINT DISCOVERED THAT THE NR 5 CYLINDER CONNECTING ROD HAD BROKEN AND PENETRATED THE CRANKCASE. THE CAMSHAFT WAS ALSO FOUND TO HASDR CA120827011Gear · failed(CAN) WHILE TURNING THE PROPELLER BY HAND, THE OWNER/PILOT FOUND THAT THE ENGINE LOCKED UP. THE AME WORKING ON THE ACFT REMOVED AN ENGINE ACCY TO GAIN ACCESS TO THE INTERNAL GEARS AND FOUND THAT THERE WERE 2 TEETH MISSING FROM THE CRANKSHAFT GEAR. THE ENGINESDR CA120910012Piston · failed(CAN) ON APPROACH INTO FIRE LAKE, THE PILOT NOTICED CONSIDERABLE VIBRATION AND MECHANICAL KNOCKING NOISE. AFTER LANDING THE ENGINE WAS STILL RUNNING BUT WOULD VIBRATE QUITE BADLY OCCASIONALLY WITH THE ASSOCIATED KNOCKING NOISE. THE PILOT ELECTED TO SHUTDOWN SDR 2012FA0000639Connecting Rod · failedINFLIGHT LOSS OF POWER AND LOSS OF OIL DURING CLIMB CAUSING AIRCRAFT UNSCHEDULED LANDING. VISUALLY INSPECTED ENGINE AND FOUND CRANKCASE WAS PUNCTURED BY A CONNECTING ROD CAUSING OIL TO LEAK.SDR RI9A20120807557Crankcase · crackedPILOT HEARD RIGHT ENGINE RUNNING ROUGH AND SAW THE OIL PRESSURE DROP. SHUT THE ENGINE DOWN AND MADE A SAFE LANDING AT OUZINKIE AIR STRIP. UPON INSPECTION FOUND A CRACK IN THE CRANKCASE BETWEEN THE NR 3 AND NR 5 CYLINDERS. A NEW ENGINE WAS INSTALLED. AFTERSDR 2012F00133Crankcase · crackedCRACK WAS DISCOVERED IN THE FORWARD LEFT CASE HALF PROPAGATING OUT FROM NR 2 CYLINDER BASE. DAMAGE FOUND DURING ROUTINE 100 HOUR INSPECTION. ENGINE GROUND RUN CONFIRMED CRACK WAS LEAKING OIL.SDR 2012F00132Crank Assy · brokenPRIOR TO EVENT FLIGHT PILOT REPORTED AN UNUSUAL SOUND WHILE ON APPROACH TO LAND. THE ENGINE FAILED 35 MINUTES INTO A 40 MINUTE FLIGHT. THE PILOT PULLED THE THROTTLE IMMEDIATELY ONCE THE ENGINE BEGAN TO VIBRATE AND CONTINUED TO SECURE THE ENGINE AND ACFT FOR ASDR 2012FA0000462Plug · chatteringLOSS OF OIL PRESSURE AND ENGINE POWER IN FLIGHT. EXAMINATION REVEALED ALUMINUM PISTON PIN PLUGS FOR CYLINDER NR 4 HAD DISINTEGRATED, DAMAGING PISTON SKIRT, AND BLOCKING OIL FILTER. ENGINE SUBSEQUENTLY SEIZED DUE TO OIL STARVATION.SDR CA120723022Camshaft · making metal(CAN) MFG EXPERIENCED A PARTIAL POWER LOSS IN CRUISE FLIGHT. PILOT IMMEDIATELY ATTEMPTED A LANDING HOWEVER ACFT EXPERIENCED A COMPLETE LOSS OF POWER JUST BEFORE TOUCHING DOWN. ACFT SUSTAINED SUBSTANTIAL DAMAGE FROM HARD LANDING. ACFT WAS RECOVERED BY THE OPSDR CA120711007Crankshaft · failed(CAN) CUSTOMER BROUGHT ENGINE TO US AFTER 40HRS SINCE MAJOR O/H. THE CUSTOMER WAS SOLD A CRANKSHAFT AND CONNECTING RODS, FROM AN ENGINE SHOP. THE ENGINE WAS DECLARED TO BE AN O/H AND INSTALLED HIS ENGINE. AT 38.1 HRS SINCE O/H THE CUSTOMERS ENGINE STOPPED DUSDR 2012FA0000376Seal · splitENGINE CRANK SHAFT SEAL SPLIT ALONG SEAL FACE. ENGINE WAS LOOSING OIL THRU SEAL.SDR 2012FA0000343Case · crackedDURRING PRE FLIGHT FOUND OIL ON COWLING. INVESTIGATION FOUND A CRACK IN THE RT FWD TOP OF THE ENGINE CASE.SDR CA120514005Bearing · damaged(CAN) NR 3 CYLINDER WAS REMOVED DUE TO LOW COMPRESSION. WHILE THE CYLINDER WAS REMOVED IT WAS NOTED THAT THE MAIN CRANK BEARING, PN 653547. JUST AFT OF NR 3 CYLINDER WAS FOUND OUT OF POSITION SHUFFLED FORWARD APPROXIMATELY .1250" AND RUBBING ON THE CRANK CHESDR CA120716025Crankshaft · broken(CAN) CRANKSHAFT FAILED IN FLIGHT WHICH CAUSED THE ENGINE TO STOP. AIRPLANE HAD EMERGENCY LANDING WHICH CAUSED EXTENSIVE DAMAGE TO THE AIRPLANE. CRANKSHAFT FAILED IN SAME AREA THAT IS TO BE INSPECTED AS PER CONTINENTAL SB. 96-10A.SDR CA120417004Piston Pin · worn(CAN) WHILE PERFORMING 100 HRS INSPECTION, POST OPENING INSPECTION OF OIL FILTER REVEALED ALUMINUM CHIPS IN FILTER. AFTER CONSULTING WITH APPROVED REPAIR SHOP, NR 2 & NR 4 CYLINDERS WERE REMOVED AND PISTON PIN ENDS WERE FOUND WITH METAL MISSING. CYLINDER WALLSDR CA120502016Crankcase · cracked(CAN) ON A ROUTINE INSPECTION, THE AME NOTICED AN 1.5" CRACK UNDER THE PROPELLER GOVERNOR EXTENDING DOWN TOWARD THE STARTER MOUNTING PLATE. DESPITE EXTENSIVE RESEARCH WE HAVE NOT BEEN ABLE TO COME UP WITH A ROOT CAUSE ON TO WHY THE CRACK HAPPENED IN SUCH AN USDR 2012FA0000322Unknown · failedSOMETHING INSIDE CYLINDER LET GO SO THAT THE ROD WAS NO LONGER CONNECTED TO THE PISTON. BOTTOM OF THE PISTON WAS DESTROYED. WRIST PIN RIDES WAS DESTROYED FROM BANGING INTO BOTTOM OF CYLINDER. EITHER THE PISTON LET GO, OR THE ROD LET GO OF THE WRIST PIN.SDR CA120417009Lifter · corroded(CAN) RIGHT ENGINE FOLLOWING LT ENGINE HYDRAULIC LIFTERS PITTING, SDR 20120417006, THE RT ENGINE WAS SAMPLED AS A PRECAUTION MEASURE. VISUAL INSPECTION OF THE CAMSHAFT END OF ALL LIFTERS REVEALED HEAVY PITTING OF THE CONTACT SURFACE OF THE LIFTER WITH CAMSHAFSDR CA120417006Lifter · corroded(CAN) LEFT ENGINE WHILE PERFORMING 50/100 HRS INSPECTION, REMOVAL OF A PUSHROD HSG FOR SEAL REPLACEMENT PERMITTED THE REMOVAL OF THAT SPECIFIC HYDRAULIC LIFTER. VISUAL INSPECTION OF THE CAMSHAFT END OF LIFTER REVEALED HEAVY PITTING OF THE CONTACT SURFACE OF TSDR EWKA2012040601Crankshaft · crackedCRANKSHAFT CRACKED AT PROPELLER FLANGE IN THE RADIUS. CRACK WAS IN A V SHAPE. ONE SIDE LINE WAS ABOUT 4 INCHES AND THE OTHER WAS ABOUT 3 INCHES.SDR CA120419003Bearing · delaminated(CAN) OIL FILTER CONTAMINATION DELAMINATION MAIN BEARING.SDR CA120620008Crankshaft · failed(CAN) ACFT ENG SN 282949-R CRANKCASE FAILURE, 7TH STUD CRANKCASE, CRANKCASE FRETTING ON NR 2 & 3 INTERMEDIATE BEARING SADDLE THRU-BOLT PADS. WHEN THIS OCCURS, THE PINCH FIT IS LOST ON THE MAIN BEARINGS IN THESE POSITIONS & THEY BECOME LOOSE. AS A RESULT, THESDR CA120430011Piston · failed(CAN) WHILE ON FINAL, THE ACFT STARTED TO VIBRATE, UPON SELECTION OF "GEAR DOWN" AT LOW POWER SETTINGS, 15" MANIFOLD, 2300 RPM. THE GEAR WAS CYCLED ONCE AND THE VIBRATION WORSENED. THE RPM ON THE RT ENGINE DROPED FROM 2300 TO 1500 RPM. ADJUSTING THE RT PROPSDR 2012FA0000175Bolt · brokenIN CRUISE FLIGHT PILOT REPORTED LOSS OF ENGINE OIL PRESSURE. ACFT LANDED IN A FIELD. VISUAL EXTERNAL EXAMINATION OF THE ENGINE REVEALED AN 8" SQUARE AREA OF THE BOTTOM OF THE CRANKCASE MISSING BY THE NR 1 AND NR 2 CYLINDERS. THE CONNECTING ROD FOR THE NR 1 SDR 2012FA0000321Crankcase · crackedON COMLETION OF A ROUTINE INSPECTION, A CRACKED ENGINE CASE STARTING AT NR 5 CYLINDER AND REARWARD 2.5"SDR CA120221011Line · cracked(CAN) PILOT NOTICED NO MANIFOLD PRESSURE INDICATION, RETURNED TO BASE. INSPECTED AND FOUND LINE BROKEN AT ENGINE.SDR RI9A2012FA0000125Case · damagedPILOT EXPERIENCED AN ROUGH RUNNING LT ENGINE 20 MINUTES INTO THE FLIGHT. THE PILOT REPORTED THAT ALL LT ENGINE INSTRUMENT INDICATIONS WERE NORMAL AT THAT TIME. OIL PRESSURE DROPPED TO ZERO, TURNED BACK TO AIRPORT. DECLARED AN EMERGENCY AND LANDED WITHOUT ANSDR CA120313002Tappet · spalled(CAN) ENGINE HAD OIL PRESSURE FLUCTUATION ON RUN-UP. OIL FILTER FOUND TO HAVE EXCESSSIVE METAL CONTAMINATION. ENGINE WAS PULLED FOR REPAIR. UPON DISASSEMBLY THE NR 2 CAMSHAFT LOBE WAS FOUND EXTREMELY WORN AND THE NR 1 CAMSHAFT LOBE WAS FOUND DAMAGED AS WELL.SDR CA120223001Ring · broken(CAN) 6 OUT OF 8 CYLINDERS, TWIN APPLICATION, INSTALLED WERE PROCURED FROM MFG AND HAD BEEN FITTED WITH STANDARD PN RINGS. BROKEN RINGS FOUND AFTER EXCESSIVE OIL VENTING FROM LT ENGINE AND SUBSEQUENT LEAK DOWN CHECK. LEAKDOWN CHECK ON RT ENGINE FOUND 1 LOW CSDR CA120210006Case · leaking(CAN) THE PILOT REPORTED RT ENGINE OIL LEAK. THE MAINTENANCE INSPECTION FOUND THE RT ENGINE, PN LTIO-540-J2BD CASE WAS CRACKED. THE CRACK IS LOCATED ON THE LT SIDE AT THE FWD BASE OF CYLINDER NR 2 AND IS APPROXIMATELY 4" IN LENGTH. ENGINE WILL BE REPLACED. SDR 2012FA0000113Gear · brokenDURING ANNUAL INSPECTION, WHILE COMPLYING WITH AD-07-05-15 (DATED 04/16/07), STARTER ADAPTER 400-HOUR INSPECTION IAW MSB 94-4G, FOUND ONE BROKEN TOOTH ON CAMSHAFT GEAR. ENGINE DISASSEMBLED WITH NO OTHER INDICATIONS FOUND OF RELATED DEFECTS OR DAMAGE INTERNALLSDR CA120116008Crankshaft · corroded(CAN) CORROSION WAS FOUND ON THE CRANKSHAFT AND THE CRANKCASE FLANGE. THE CORROSION WAS DETERMINED TO BE MORE THAN SURFACE CORROSION. TECH SERVICES WERE CONSULTED AND THEY ADVISED THAT NO SURFACE PITTING IS ALLOWED.SDR 2012FA0000070Piston · failedNORMAL TAKEOFF, HOVER, AND STEADY LEVEL FLIGHT. 30 MINUTES ENROUTE, SUDDEN VIBRATIONS FOLLOWED BY LOW RPM WARNING LIGHT & HORN. VERIFIED DROPPING NEEDLES AND LOWERED COLLECTIVE FOR AUTOROTATION. CHECKING AIRSPEED GAUGE AT 40KTS, ADJUSTED FORWARD CYCLIC FOR SDR CA120207002Engine · power loss(CAN) DURING POST MAINTENANCE RUN-UP FOLLOWING AN OIL AND FILTER CHANGE, THE LEFT ENGINE HAD VISIBLE SMOKE COMING FROM THE BACK OF AIRCRAFT. THE LEFT ENGINE WAS SHUTDOWN AND AFTER INSPECTION WE NOTICED THAT THE PROP WAS SEIZED AND NOT MOVING. ENGINE WAS SENT TSDR CA120106002Crankcase · cracked(CAN) WHILE DOING 100HR INSPECTION OIL LEAK NOTICED AT FRONT OF ENGINE CRANKCASE. AME REMOVED BAFFLING AND OIL COOLER. CLEANED PAINT FROM CRANKCASE CRACK FOUND BETWEEN FRONT TWO THRU STUDS. CRACK WAS ALSO HEADING TO TOP OF CASE. ENGINE REMOVED AND SENT OUT FORSDR F47A2012F00000Crankcase · crackedUPON INSPECTION OF RT ENGINE, VERIFIED CRACKED RT SIDE CASE, FROM NR 5 TOP CYLINDER, AREA THRU DATA PLATE IE RAM STC SE8338SW-D-SMOX 165.2 HRS.SDR CA111205012Camshaft · making metal(CAN) DURING INSPECTION OF THE OIL FILTER IT WAS NOTICED THAT THERE WAS A SMALL AMOUNT OF METAL. MEASURED VALVE CLEARANCES AN NR 4 EXHAUST WAS OUT OF TOLERANCE. THE CYLINDER WAS PULLED AND THE CAM HAD SIGNIFICANT WEAR. ENGINE WAS REMOVED AND SENT FOR REPAIRSDR CA111206001Case · cracked(CAN) DURING INSPECTION, WE NOTICED A SMALL BLACK LINE ON FRONT RT CASE, AFTER THE AFFECTED AREA WE FOUND THAT THE LINE HAD DISAPPEARED. AFTER RUN-UP WE NOTICED THAT THERE WAS STILL A LITTLE BIT OF SEEPAGE ON THE CRANKCASE. ENGINE WAS REMOVED AND SENT TO THESDR 2011FA0000752Button · brokenROCKER SHAFT THRUST BUTTON, PN LW12892. 4 OF THE 8 INSTALLED WERE BROKEN WHEN VALVE LOUVERS WERE REMOVED TO CHANGE VALVE LOUVER GASKETS.SDR 2011FA0000770Crankshaft · brokenCRANKSHAFT BROKE IN FLIGHT. CONTINUED TO RUN BUT PILOT REPORTED KNOCKING NOISE IN ENGINE AND LANDED. ENGINE WAS REMOVED FROM AIRCRAFT AND SHIPPED TO SHOP FOR PARTIAL TEAR DOWN. FOUND METAL IN OIL SUMP AND A CRACK IN COUNTERBALANCE SECTION OF CRANKSHAFT.SDR Y2GR201111333574Gear · damagedCRANKSHAFT GEAR WAS FOUND WITH FOUR TEETH MISSING FROM THE GEAR. THE CAMSHAFT GEAR THAT IT IS MESHED WITH STILL ROTATED AROUND THE GEAR AND MESHED WITH THE REMAINING TEETH. SB 08-12 DATED 9/9/08 SUPERSEDES THIS GEAR PN WITH A NEW HEAVIER GEAR PN 657175 AT THE
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