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 2005FA0000573Bolt · brokenCRANKSHAFT CONNECTING BOLT BROKE CAUSING LOSS OF ENGINE POWER. DAMAGE TO ENGINE INCLUDED REAR MAIN BEARING AND CRANKSHAFT ASSY. PROBABLE CAUSE COULD BE OVER TORQUE AT ASSY OR METAL FATIGUE. PREVIOUS OVERHAUL AGENCY UNKNOWN AT THIS TIME. (K)Mar 20, 2005 · N351CE · Doug C118ASDR CA050324008Piston · eroded(CAN) TOP LAND OF PISTON ERODED AWAY AND HOLE BURNED THROUGH PISTON BELOW 3RD RING FROM HEAD OR TOP OF PISTON. PISTON EXPANDED FROM EXCESSIVE HEAT AND SCUFFED AGAINST CYLINDER BARREL, SMEARING SKIRT AND SCORING BARREL. CAUSE APPEARS TO BE DETONATION. PARTS COMar 16, 2005 · Cessna 172FSDR 2005FA0000569Bearing · damagedUPON DISASSEMBLY IT WAS NOTED THAT THIS BEARING SHELL IS BROKEN. IT IS LOCATED IN NR 2 FROM REAR SADDLE. IT APPEARS THAT THE BEARING HAS WORKED AND IS POLISHED AS RESULT: THE CRANKSHAFT, SN C159618N HAS OVERSIZED BLADE BUSHING BOSSES. UPON DISASSEMBLY, (LOMar 15, 2005SDR CA050324006Counterweight · failed(CAN) ROLLER RETAINER AND SNAP RING CAME OUT OF CLUT, RELEASING ROLLER IN 5TH ORDER CWT. (NO DAMAGE TO PARTS, POSSIBILITY WAS NOT INSTALLED CORRECTLY.) ROLLER MIGRATED TO REAR OF ENGINE AND JAMMED BETWEEN 6TH ORDER CWT AND ENGINE CASE STOPPING ENGINE. CRANKSHMar 15, 2005 · Cessna TU206GSDR 2006FA0000177Idler Gear · damagedENGINE FAILED IN FLIGHT PRELIMINARY INSPECTION REVEALED CAMSHAFT AND ASSOCIATED CRANKSHAFT IDLER GEAR WAS SEPARATED FROM CRANKSHAFT DRIVE GEAR IDLER GEAR SLOWS EVIDENCE OF DAMAGE TO DRIVE TEETH. UNABLE TO DETERMINE AT THIS TIME WHETHER THE CAMSHAFT OR LT MAGNMar 14, 2005 · N1202X · Mooney M20CSDR 2005FA0000756Rod Bolt · defectiveUNABLE TO ACHIEVE PROPER BOLT TORQUE AND ALIGN COTTER PIN HOLES WITH CASTELATED NUT. HOLES IN DRILLED HEAD MISALIGNED. (K)Mar 14, 2005SDR 2005FA0000453Crankshaft · crackedDURING THE OVERHAUL PROCESS, THE FLYWEIGHT LINERS WERE REMOVED AND THE REAR HALF OF THE CRANKSHAFT WAS MAGNETIC PARTICLE INSPECTED. DURING THIS INSPECTION IT WAS DISCOVERED THAT A CRACK HAD DEVELOPED FROM AN ASSEMBLY RIVET HOLE OUT TO THE LINER BORE ON THE COMar 14, 2005SDR AU510002211Bearing · failedCRANKSHAFT NR 2 MAIN BEARING SHELL PROTRUDING MORE THAN NORMAL OUTSIDE OF THE CRANKCASE SADDLE. WHEN THE ENGINE WAS STRIPPED DOWN THE NR 2 BEARING SHELL LOCATED IN THE LT CRANKCASE FELL APART INTO AT LEAST FIVE PIECES. DAMAGE TO THE CRANKCASE WAS ALSO FOUND Mar 11, 2005 · Cessna U206GSDR CA050330002Crankcase · cracked(CAN) ENGINE HAD OIL LEAK WHICH WAS DETERMINED TO BE COMING FROM CRACK ON THE FRONT CRANKCASE BETWEEN NR 3 AND 4 CYLINDER BASE AREA. THIS CRACK WAS ABOUT 3.5 INCHES LONG ORGINATING FROM CRANKCASE THROUGH BOLT UP TOWARDS THE CYLINDER BASES.Mar 8, 2005 · Dhav DHC2*SDR 2005FA0000358Camshaft · brokenWHILE CLIMBING OUT OF 4,000 FT, RT ENGINE (2-23-05) SHUTTERED AND BEGAN VIBRATING EXCESSIVELY. RETURNED TO AIRPORT. INSPECTION REVEALED THE CAMSHAFT HAD BROKEN COMPLETELY INTO 2 PIECES, ENGINE REMOVED AND SENT TO REPAIR FACILITY FOR FURTHER EVALUATION. ENGIMar 7, 2005 · N8833Y · Piper PA30SDR CA050228009Crankcase · cracked(CAN) SUSPECT CRACK IN THE VICINITY OF CYLINDER NR 2. ENGINE REMOVED FOR FURTHER INSPECTION.Feb 28, 2005 · Piper PA31350SDR CA050223011Lifter · spalled(CAN) DURING PROGRESSIVE CARE OPERATION NR2 ON INSPECTION OF OIL SUMP SCREEN FOUND LARGE METALLIC FERROUS PARTICLES. ENGINE ON FURTHER INVESTIGATION, IT WAS FOUND THAT ALL LIFTERS (INTAKE AND EXHAUST) WERE BADLY SPALLED, ALONG WITH SPALLED AND WORN CAM LOBES. Feb 22, 2005 · Cessna 172NSDR CA050218010Crankcase · cracked(CAN) LT ENGINE LEAK, ENGINE RUN TO CONFIRM LEAK, HARD TO FIND, ENGINE PRESSURIZED, FOUND CRACK OF 1.5 INCH LONG FORWARD OF CYLINDER NR2 IN THE CASE.Feb 17, 2005 · Piper PA31350SDR 2005FA0000425Piston Ring · failedOUT OF CONCERN FROM HAVING 2 PREVIOUS OIL RING FAILURES THAT COULD HAVE BROUGHT ME DOWN. PULLED CYLINDER NR 1 AND NR 2 TO REPLACE RING WITH SAME PRODUCTION DATE AS ONE THAT FAILED. PULLING AND INSPECTING NR 1, FOUND THE RING GAP TO BE EXCESSIVE, MFG CALLS FOFeb 14, 2005 · N4238F · Piper PA28151SDR CA050218011Connecting Rod · bent(CAN) AIRPLANE FLYING AT CRUISE POWER, ENGINE FEATHERED ON ITS OWN, ENGINE PARAMETER CHECK, NO OIL PRESSURE. ENGINE SHUTDOWN, RETURN TO AIRPORT. INITIAL CHECK REVEALED METAL CONTAMINATION, ENGINE SENT TO ENGINE REPAIR SHOP, REPORT OF NR 6 CONNECTING ROD BENT,Feb 12, 2005 · Cessna 310RSDR CA050223010Lifter · spalled(CAN) INSPECTION OF OIL SUMP SCREEN FOUND LARGE METALLIC FERROUS PARTICLES. ENG TTSN 1738.0. IT WAS FOUND THAT LIFTERS WERE BADLY SPALLED (CYL NR1, INTAKE SPALLED, CYL NR2 BOTH GOOD, CYL NR3, INT AND EX SPALLED, CYL NR4, INTAKE SPALLED) ALONG WITH SPALLED ANFeb 10, 2005 · Cessna 172NSDR 2005FA0000216Connecting Rod · failedNR 2 CONNECTING ROD FAILED BREAKING CRANKCASE, KNOCKING LT MAG FROM MOUNT. ROD SHOWED FRICTION WELDING TO CRANK PRIOR TO FAIURE. COUNTERWEIGHT DAMAGED BY IMPACT WITH ROD. APPEARS ENG CONTINUED TO OPERATE BRIEFLY FOLLOWING ROD SEIZURE. PILOT ACCOMPLISHED SUFeb 9, 2005 · N5130A · Cessna T210NSDR 2005FA0000192Crankshaft · fracturedTHE CRANKSHAFT REAR HALF FRACTURED IN TWO, JUST AFT OF THE MASTER ROD BEARING JOURNAL. (K)Feb 7, 2005 · Scwzer G164ASDR 2005FA0000494Crankshaft · brokenTHE ENGINE WAS UNDER POWER WHEN THE CRANKSHAFT BROKE. THE ENGINE RAN UNTIL AIRCRAFT WAS ON GROUND. THERE WAS AN EXTREME VIBRATION. (K)Feb 6, 2005 · N140SG · Cessna 140SDR CA050305001Crankcase · cracked(CAN) VISUAL INSPECTION DETECTED CRACKED CASE. ONCE ENGINE DISMANTLED, EXCESSIVE CRACK FOUND IN THE FRONT MAIN JOURNAL AREA. LARGE SECTION OF JOURNAL COMPLETELY DETACTED FROM CASE.Feb 4, 2005 · Cessna 210JSDR CA050216005Piston Pin · broken(CAN) PISTON (NR1) BROKE AT PIN BOSS RESULTING IN LARGE CHUNKS OF ALUMINUM FALLING INTO THE ENGINE, ENDING UP AT THE BOTTOM OF THE SUMP. SMALLER PIECES OF THE METAL WERE SUCKED UP THROUGH THE OIL PICK-UP AND RAN THROUGH THE OIL PUMP.Jan 31, 2005 · Cessna 421BSDR 2005FA0000484Shaft · out of roundUPON INSTALLING A SHAFT INTO A ROCKER WITH INADEQUATE TOLERANCE LIMITS, NOTED BINDING IN 3 O`CLOCK POSITIONS. WITH PRUSSION BLUE FOUND SHAFT IS FORMED IN ELIPTICAL OR, MODIFIED TRIANGULAR SHAPE WITH REDUCED WEAR SURFACE AREA DUE TO INCONSISTANT DIA OF SHAFT. Jan 30, 2005 · N123AP · Piper PA34200TSDR 2005FA0000108Shaft · out of roundUPON INSTALLING A SHAFT INTO A ROCKER WITH INADEQUATE TOLERANCE LIMITS, NOTED BINDING IN THREE CLOCK POSITIONS. WITH PRUSSION BLUE, FOUND THAT THE SHAFT IS FORMED IN AN ELIPTICAL OR, MODIFIED TRI-ANGULAR SHAPE WITH REDUCED WEAR SURFACE AREA DUE TO INCONSISTANTJan 30, 2005 · N123AP · Piper PA34200TSDR 1622304Bolt · failedDURING ENGINE OVERHAUL, THE PMA CRANKGEAR BOLT P/N: AELSTD2213 MANUFACTURED BY ENGINE COMPONENTS INC FAILED BEFORE REACHING RECOMMENDED TORQUE VALUE. THE AREA JUST BELOW THE GRIP AREA STRETCHED.Jan 28, 2005SDR 2005FA0000813Main Bearing · disintegratedMETAL WAS FOUND IN OIL FILTER. CLEANED WENT FOR TEST FLIGHT, LOST OIL PRESSURE. ENGINE REMOVED, WITNESSED TEARDOWN. FOUND NR 2 MAIN BEARING SPUN AND DISINTEGRATED. CRANKSHAFT CHECKED OUT OK. ENGINE CASE WAS BADLY DAMAGED AT THE NR 2 BEARING BOSS ENGINE HAJan 27, 2005 · N756XE · Cessna U206GSDR 2006FA0000150Lifter · spalledMETAL FOUND IN OIL FILTER DURING INSP WAS LATER DETERMINED TO BE FROM FAILED LIFTERS. CONDITION WAS STARTING TO DAMAGE CAM LOBES. SID 05-1 STATES THAT MINOR IMPERFECTIONS CAN (HEAL OVER) BUT WE HAVE NOT FOUND THIS TO BE CASE, JUST OPPOSITE IS TRUE. ONCE LIFJan 26, 2005 · N584LL · Beech 58SDR FPI2005F00002Connecting Rod · looseA MAIN BEARING IN THE ENGINE SPUN, CUTTING OFF OIL SUPPLY TO CONNECTING ROD NR 2 CYLINDER. CONNECTING ROD LET GO AND WENT THRU ENGINE CASE. ENGINE RETURNED TO MFG AS CORE. (K)Jan 13, 2005 · N93DF · Beech 58SDR N3B2005F00000Connecting Rod · looseIT APPEARS FOR SURE THAT NUT ON CONNECTING ROD CAP, LOOSEN. BOLT HEAD SHEARED OFF. ENGINE STOPPED RUNNING SOOP AFTERWARD. (BOLT NR 629340) (K)Jan 10, 2005 · N775RC · Cessna 402CSDR AU510001477Elbow · cracked(AUS) RH ENGINE ACCESSORY CASE OIL INDICATOR PORT SCREW-IN ELBOW FAILED. SEE ATTACHMENT FOR PHOTOGRAPH OF FAILED ITEM. (CASA# 510001477)Jan 6, 2005 · Piper PA28161SDR 2005FA0000412Piston Ring · brokenCROSS COUNTRY FLT, HEADED TO 2ND FUEL STOP, HEARD A SLIGHT RPM CHANGE IN ENGINE THAT WAS INTERMITTENT. UPON LANDING, PERFORMED MAG CHECK AND ONE MAG WAS A LITTLE ROUGH, HAD THE PLUGS PULLED AND FOUND THAT THE PLUG ON NR 4 CYLINDER WAS FOULED WITH TRACES OF OIDec 26, 2004 · N4238F · Piper PA28151SDR 2005FA0000128Crankcase · crackedENGINE CASE CRACK BY NR 3 FORWARD CYLINDER UPPER THROUGH BOLT RADIATING DOWNWARD SEVERAL INCHES. AD ADDRESSES THIS PROBLEM, BUT THESE MODEL NR ENGINE ARE NOT INCLUDED. THIS HAS HAPPENED TO THIS ENGINE ONCE BEFORE, 2 YEARS AGO. (K)Dec 22, 2004 · N885C · Cessna 421CSDR 2005FA0000685Crankshaft · failedCRANKSHAFT BROKEN AT NR3 MAIN, THEN AT 2 OTHER PLACES. (K)Dec 17, 2004 · N525AA · Piper PA31350SDR 2005FA0000280Lifter · spalledON 6 DIFFERENT ENGINES DURING OIL CHANGES OR TROUBLESHOOTING FOR LOW OIL PRESSURE, HAVE FOUND A SPALLED LIFTER. ONLY ONCE WAS THE PROBLEM CAUGHT EARLY ENOUGH THAT THE CAMSHAFT WAS NOT DAMAGED AND NEEDING REPLACEMENT. (K) (2 OF 2)Dec 13, 2004SDR 2005FA0000279Lifter · spalledON 6 DIFFERENT ENGINES DURING OIL CHANGES OR TROUBLESHOOTING FOR LOW OIL PRESSURE, HAVE FOUND A SPALLED LIFTER. ONLY ONCE WAS THE PROBLEM WAS THE PROBLEM CAUGHT EARLY ENOUGH THAT THE CAMSHAFT WAS NOT DAMAGED AND NEEDING REPLACEMENT. (K) (1 OF 2)Dec 13, 2004SDR UQM2005F00000Crankshaft · brokenAFTER INSTALLING REBUILT MAGS, TEST RAN AND WAS KNOCKING. REMOVED NR 1 CYLINDER AND FOUND CRANKSHAFT BROKEN AT THE JOURNAL. I FEEL THE CRANK MAY BE BROKEN IN ANOTHER SPOT. MFG IS AWARE OF THIS AND A REPLACEMENT ENGINE HAS BEEN SENT. PILOT WAS FLYING AT 700Dec 8, 2004 · N38567 · Piper PA28R201TSDR 2005FA0000125Crankshaft · brokenCRANKSHAFT BROKE AT NR 2 MAIN. NO SIGNS OF OIL STARVATION. NO SIGNS OF CASE FRETTING. CASE WAS DAMAGED BEYOND REPAIR. (K)Dec 2, 2004 · N210FC · Cessna 421BSDR CA050105007Camshaft · worn(CAN) AIRCRAFT IS OPERATED BY BUSY FLIGHT TRAINING UNIT NO COMPLAINTS OF ENGINE MALFUNCTIONS HAD BEEN REPORTED. ENGINE WAS RUN UP, FOUND NORMAL, PRIOR TO INSPECTION. OIL SUCTION SCREEN WAS INSPECTED AND FOUND CLEAN. OIL PRESSURE FILTER WAS CUT OPEN AND A SMANov 30, 2004 · Piper PA28R201SDR CA041124012Camshaft · sheared(CAN) THE ENGINE LOST POWER ON CLIMB-OUT OF CALGARY. THE PILOT FEATHERED THE PROP AND RETURNED TO CALGARY. THE ENGINE WAS GROUND RUN AND THE PROP GOVERNOR WAS FOUND TO BE INOPERATIVE. UPON REMOVAL OF THE GOVERNOR, IT WAS FOUND THAT THE DRIVE P/N 538076 WAS NNov 22, 2004 · Cessna T303SDR 4028Piston · damagedON APPROACH INTO CMH, RIGHT ENGINE LOST ALL OIL PRESSURE, PROPELLER FEATHERED AND ENGINE SHUT DOWN. FOUND NR 2 CYLINDER PISTON WITH SIGNS OF DESTINATION, FUEL NOZZLE OK.Nov 19, 2004 · N400RP · Beech 58SDR CA041116003Crankshaft · failed(CAN) CRANKSHAFT FAILED AT THE MALE SPLINE NEAR THE NECKED DOWN AREA NEXT TO THE BUTT FACE IN THE FRONT CRANKSHAFT (P/N 261279). CRANKSHAFT IS BEING HELD FOR POSSIBLE FURTHER INVESTIGATION.Nov 16, 2004 · Dhav DHC2*SDR 2004FA0000937Crankshaft · fracturedCRANKSHAFT FRACTURED IN FLIGHT BETWEEN THE NR 1 AND 2 CONNECTING ROD JOURNALS. AIRCRAFT MADE A SAFE LANDING.Nov 15, 2004SDR 2004FA0000936Crankshaft · fracturedCRANKSHAFT FRACTURED IN FLIGHT BETWEEN THE NR 1 AND 2 CONNECTING ROD JOURNALS. AIRCRAFT MADE A SAFE LANDING.Nov 15, 2004SDR 2005FA0000704Main Bearing · delaminatedNR 3 MAIN BEARING APPEARED TO DELAMINATE. ALL THE BRASS OR BRONZE SEPARATED FORM THE BEARING SHELL. THE CRANKSHAFT, NR 3 JOURNAL DOES NOT SHOW SIGNS OF OIL STARVATION. (K)Nov 12, 2004 · N10FF · Cessna 421CSDR 2005FA0000677Main Bearing · delaminatedBEARING CRACKED AND DELAMINATED IN NR2 MAIN BEARING SADDLE. HEATED CRACKS IN NR2 MAIN JOURNAL. THIS HAS BEEN NOTED ON OTHER ENGINES WE HAVE DISASSEMBLED. BEARING BORN DATE 10-02. THIS WAS A NEW CASE AND NO SIGNS OF FRETTING ON THE CASE HALF. (K)Nov 10, 2004 · N9SD · Cessna 421BSDR 2005FA0000164Lifter · corrodedDURING A RECENT MFG SYMPOSIUM, THE PROBLEM OF UNAIRWORTHY LIFTERS IN MFG ENGINES DISCUSSED. MFG ENGINE HAVE BEEN NOT HOLDING UP WELL IN THESE AREAS AND MANY SC`S ARE RECOMMENDING AN INSPECTION OF THE LIFERS DURING SCHEDULED MAINTENANCE. THIS AC WAS UNDERGOINNov 5, 2004 · N956C · Cirrus SR22SDR 2005FA0000411Piston Ring · brokenON NIGHT IFR FLIGHT, DEPARTED WITH 7.5 QTS OF OIL IN THE ENGINE. WHEN ARRIVED AT DESTINATION 1.4 HOURS LATER AND PERFORMED A POST FLIGHT INSPECTION, FOUND THAT THE CRANKCASE WAS DOWN 4 QUARTS OF OIL AND THERE WAS NO SIGN OF AN OIL LEAK. UPON INSPECTION, FOUNOct 31, 2004 · N4238F · Piper PA28151SDR 2005FA0000168Stud · failed(2) EA DECK STUDS ON NR 1 CYLINDER FAILED. (K)Oct 26, 2004 · N2625X · Cessna P206SDR ZJW2004F00000Crankcase · damagedENGINE LOST POWER DUE TO LOSS OF OIL. ENGINE WAS CAGED IN OMA AND LANDED SAFELY. GROUND INSPECTION SHOWED HOLE IN CRANKCASE. PROBABLY ROD CAP SEPARATION DUE TO ROD BEARING FAILURE.Oct 26, 2004 · N411JF · Gulstm 500BSDR 2005FA0000169Lifter · spalledDURING SCHEDULED OIL CHANGE, METAL WAS FOUND IN THE FILTER. FURTHER INVESTIGATION DISCOVERED THE TAPPETS STARTING TO FAIL. THIS CONDITION CAN BE A RESULT OF IMPROPER HEAT-TREATING. WITHOUT BEING FAMILIAR WITH MFG PROCESS, CAN NOT RECOMMEND A PLAN FOR PREVENOct 25, 2004 · N6484A · Cessna 210NSDR CA041109001Crankcase · crackedPOSSIBLE CRACK FOUND DURING 100 HR INSPECTION. ENGINE REMOVED AND SENT TO AEROTER ENGINES IN HALIFAX. ENGINE SHOP CONFIRMED CRACK BETWEEN NR 2 AND NR 4 CYLINDER ON BOTTOM SIDE. IT ALSO HAD EXCESSIVE FRETTING ON THE CENTER MAINS.Oct 21, 2004
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