Continental IO-550-N
Service difficulty reports · 335
Newest first. General aviation reporting is voluntary.
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 engine_model_key = 'IO550N' 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 engine_model_key = 'IO550N' 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 2026FA0000818Drive Gear · spalledFACE GEAR DAMAGED, ENGINE HAS EXHIBITED DAMAGE TO THE ALTERNATOR DRIVE FACE GEAR (P/N 657984), WHICH DRIVES THE NO. 1 ALTERNATOR. THE DAMAGE HAS INCLUDED VARYING DEGREES OF SPALLING, GALLING, AND CHIPPING OF THE GEAR TEETH.SDR 2026FA0000796Lock Tab · misinstalledREMOVED THE #2 AND #4 CYLINDER INTAKE AND EXHAUST ROCKER COVERS FOR ROUTINE GASKET REPLACEMENT. UPON INSPECTION OF THE VALVE ASSEMBLY, I FOUND THE LOCKING TAB WASHER P/N: 501868, FOR THE CYLINDER ROCKER ARM SHAFT HOLD DOWN BOLTS TO NOT BE BENT INTO THE LOCKINGSDR 2026FA0000820Drive Gear · spalledFACE GEAR DAMAGED, ENGINE HAS EXHIBITED DAMAGE TO THE ALTERNATOR DRIVE FACE GEAR (P/N 657984), WHICH DRIVES THE NO. 1 ALTERNATOR. THE DAMAGE HAS INCLUDED VARYING DEGREES OF SPALLING, GALLING, AND CHIPPING OF THE GEAR TEETH.SDR EVGR20260720001Pump · leakingDURING A POST FLIGHT INSPECTION THE PILOT OBSERVED BLUE STAINS ON THE BACK OF THE ENGINE DRIVEN FUEL PUMP. FUEL WAS FOUND TO BE SEEPING FROM THE SMALL WEEP HOLE ON THE PUMP NEAR THE UNMETERED FUEL PRESSURE ADJUSTER SCREW. THIS PUMP WAS REMOVED FROM SERVICE ASDR 2026FA0000597Engine · failedCOMPLETE LOSS OF POWER IN CRUISE FLIGHT, AIRCRAFT WAS DITCHED AND UNRECOVERABLE.SDR 2026FA0000210Alternator · failedFACTORY NEW ALTERNATOR SUDDENLY FAILED AFTER ONE MONTH AND 52 FLIGHT HOURS SINCE INSTALLATION. FAILURE OCCURRED IN CRUISE FLIGHT RESULTING IN A TOTAL ELECTRICAL POWER LOSS TO THE MAIN AIRCRAFT BATTERY. THIS NECESSITATED A PROMPT DIVERSION AND UNSCHEDULED LANDISDR 2026FA0000052Spark Plug · crackedLEVELED AT 4000FT, ENGINE POWER WAS REDUCED TO 80% WITH FUEL CONSUMPTION LEANED TO 17GAL/HR. AFTER BEING SET IN THIS CRUISE PROFILE FOR APPROXIMATELY 2 MINUTES, THE ENGINE BEGAN TO RUN ROUGH. THE PILOT THEN RICHENED THE MIXTURE WHICH DID NOT FIX THE ISSUE, HE SDR 2025FA0000529Filter · meltedPRESSURIZED MAGNETO AIR SOURCE FILTER MELTED/DEFORMED AFTER ONLY 79H AFTER INSTALLATION. BLOCKAGE OF AIR TO MAGNETO CAUSED LEFT MAGNETO FAILURE, WHICH WAS ALSO JUST 79H AFTER REPLACEMENT. PROBLEM SEEMS TO OCCUR FREQUENTLY WITH THAT FILTER INSTALLATION IN SR22 SDR 2025FA0000408Oil Cooler · crackedWHILE PERFORMING AN OIL CHANGE, IT WAS DISCOVERED THE DIAGONAL STIFFENERS ON BOTH SIDES OF THE OIL COOLER WERE BROKEN AND HALF GONE. THE OIL COOLER WAS NOT LEAKING. THE OIL COOLER WAS REPLACED WITH NEW. INSTALLED PART NUMBER: 658767, SERIAL NUMBER: H22-12342-2SDR 2025FA0000445Rheostat · unknownAIRCRAFT IS A CIRRUS SR22 WITH THE GARMIN PERSPECTIVE AVIONICS SUITE CONSISTING OF 2 GARMIN 1000 DISPLAYS SERVING AS A PFD & MFD. PILOT REPORTS THAT WHILE FLYING ON AN IFR FLIGHT PLAN BOTH THE PFD & MFD WENT COMPLETELY BLACK & UNREADABLE. AUTOPILOT REMAINED ENSDR 2025FA0000282Cylinder Head · crackedCRACKS / SEPARATION OF CYLINDER EVEN AFTER COMPLYING WITH AD 2020-16-11 OVER 5 YEARS AGO.SDR 2025FA0000113Connecting Rod · bindingDURING FLIGHT THE AIRCRAFT OWNER/OPERATOR NOTICED A DRONING VIBRATION AT CRUISE. UPON LANDING, ALL CYLINDERS WERE INSPECTED AND BORE-SCOPED. MOVED PROPELLER BACK AND FORTH AND HEARD A CLUNKING NOISE, NARROWED DOWN TO CYLINDER #2 PISTON SHOWING SIGNS OF EXCESSISDR 2025FA0000010Cylinder Head · burnedENGINE COMPRESSION CHECK CYLINDER #5 WAS 10/80 PSI. REMOVED CYLINDER, PISTON WAS BURNED BADLY AROUND THE OUTSIDE EDGES. TOP SPARK PLUG PORCELAIN WAS BROKEN AND DAMAGED.SDR 2024FA0000961Cylinder · crackedI PREVIOUSLY REPORTED THIS CYLINDER FOR A LOOSE VALVE GUIDE (CONTROL # 2024FA0000818). UPON FURTHER INSPECTION, THIS CYLINDER IS ALSO CRACKED IN THE TARGET AREA OF AD20-16-11. CRACK CONFIRMED BY 10X MAGNIFIER AND FLORESCENT PENETRANT INSPECTION. THIS CYLINDERSDR 2024FA0000818Valve Guide · loosePILOT REPORTED AN UNUSUAL VIBRATION DEVELOPING IN FLIGHT BETWEEN 2200-2400 RPM. I FOUND THE #5 CYLINDER EXHAUST VALVE GUIDE, PN: 636242P005, WAS LOOSE, FLOATING IN THE CYLINDER. LOGBOOKS INDICATE THE #5 CYLINDER WAS AN OVERHAULED CYLINDER. THE CYLINDER WAS OSDR 2024FA0000777Drive Shaft · damagedAC DRIVE ASSEMBLY, CIRRUS PN: 21119-102, ALSO PN: 1133180-4. THE 4 BOLTS, THAT WERE ALSO SAFETY WIRED, ALL SHEERED OFF IN FLIGHT, CAUSING THE AC DRIVE SHAFT TO BACK OUT, RESULTING IN HEAVY DAMAGE TO THE AC DRIVE ASSEMBLY. NO ENGINE ROUGHNESS FROM THE PILOT WASDR 2024FA0000677Engine · blownON AUGUST 21,2024 I HAD A MAJOR ENGINE FAILURE ON TAKEOFF AT 2800 FT AGL. FORTUNATELY I WAS ABLE TO RETURN TO THE AIRPORT AND LAND. I HAD FLOWN THE PLANE FOR 6 HOURS IN THE 2 PREVIOUS DAYS WITH NO ISSUES. EVERYTHING SEEMED FINE DURING THE PRE-FLIGHT AND RUN UPSDR 2025FA0000380Screw · shearedPILOT WAS FLYING WHEN THE ENGINE STARTED SHAKING AND CYLINDER 1 CHT AND EGT WENT COLD. PILOT DECLARED AN EMERGENCY AND LANDED AT KRDG. UPON REMOVAL OF THE COWLING THE INSPECTOR NOTED THERE WAS A HOLE PUNCTURED IN THE CYLINDER #1 ROCKER COVER. IT APPEARS ONE SDR 2024FA0000367Cylinder Head · crackedCYLINDERS 1, 3 AND 5 EXHIBIT CRACKS IDENTICAL TO SDR MSB09-1B, ALTHOUGH THEY ARE NOT INCLUDED IN THE SERVICE BULLETIN. CYLINDER PNS ARE UNREADABLE BUT SNS ARE AS FOLLOWS: • CYLINDER 1 - ACO6CA702, CYLINDER 2 - AC04HC272, CYLINDER 3 - AC05BB268, CYLINDER 4 - ACSDR 2024FA0000370Pulley · damagedAIR CONDITIONING COMPRESSOR DRIVE PULLEY SHEARED OFF BOLT, IMPACTED ALTERNATOR #2, DAMAGED ALTERNATOR #2 TO THE POINT THAT IT WAS INOP. COULD NOT LOCATE BOLT OR SAFETY WIRE.SDR 2024FA0000343Control Unit · burnedCOMPLETE ELECTRICAL FAILURE EN-ROUTE FROM KGTF TO 6S8. STARTED WITH ATC REPORTING MODE C FAILURE; RECYCLED TRANSPONDER. ATC UNABLE TO RECEIVE MODE C; AVIONICS POWER RECYCLE. PANEL LIGHTS FLASHED, GPS/MFD/PFD FLICKERED. BATTERY AND ALTERNATOR GAUGES OK FOR APPRSDR 2024FA0000297Mcu · failedAIRCRAFT WAS TAKEN ON MAINTENANCE TEST FLIGHT AFTER ENGINE INSTALLATION. UPON THE SECOND TOUCH-AND-GO, AIRCRAFT LOST ELECTRICAL POWER ON CLIMB OUT AFTER A TOUCH-AND-GO FROM MSO AIRPORT. BOTH ALTERNATORS INDICATED AS NO LONGER FUNCTIONING, AND MAIN BATTERY VOLTSDR 2024FA0000306Mcu · failedAIRCRAFT WAS TAKEN ON MAINTENANCE TEST FLIGHT AFTER ENGINE INSTALLATION. UPON THE SECOND TOUCH-AND-GO, AIRCRAFT LOST ELECTRICAL POWER ON CLIMB OUT AFTER A TOUCH-AND-GO FROM MSO AIRPORT. BOTH ALTERATORS INDICATED AS NO LONGER FUNCTIONING, AND MAIN BATTERY VOLTASDR EVGR2024040900001Piston Ring · stuckBETWEEN 24 & 49 HRS OIL CONSUMPTION WAS 8.7 HRS/QT. OIL CONSUMPTION WAS LOWEST AT 10 HRS PER QUART AT 240 HRS AND THEN INCREASED. AT 370 HRS IT WAS 6 HRS/QT. AT 513 HOURS WAS 4.4 HRS/QT. AT 567 HRS (100HR INSP) IT WAS 2.1 HRS/QT OVER 50 HOURS BUT WAS INCREASINSDR 2023F00233Unknown · unknownON 7/20/2023, VAN NUYS AIRLINES-VNY- DBA, AD AIRLINES' CAPTAIN REPORTED: "WE HAD SMOKE IN THE CABIN AROUND 17 MILES AWAY FROM KHFD. WE HAD THE AIR CONDITIONING ON FROM BEING ON THE GROUND AT KGON. WE SMELT SMOKE THEN A COUPLE OF SECONDS LATER WE SAW SMOKE COMISDR E5ZR202308070001Crankshaft · rustedCONTINENTAL SUPPLIED, UNDER WARRANTY, A NEW REPLACEMENT CRANKSHAFT ASSEMBLY P/N: 649900 S/N: N23BA108 (8130-3 DATED 02/JUN/2023) TO REPLACE A PREVIOUSLY SUPPLIED NEW CRANKSHAFT ASSEMBLY. THE S/N: N23BA108 CRANKSHAFT (#2) WAS SUPPLIED BY CMI BECAUSE IT WAS FOSDR 2023FA0000374Crankshaft · corrodedCONTINENTAL SUPPLIED, UNDER WARRANTY, A NEW REPLACEMENT CRANKSHAFT ASSEMBLY P/N: 649900 S/N: N23BA108 (8130-3 DATED 02/JUN/2023) TO REPLACE A PREVIOUSLY SUPPLIED NEW CRANKSHAFT ASSEMBLY. THE S/N: N23BA108 CRANKSHAFT (#2) WAS SUPPLIED BY CMI BECAUSE IT WAS FSDR 2023FA0000276Mount · destroyedDEPARTED TETERBORO LATE AT NIGHT. WHILE ENROUTE NOTICED A REDUCTION IN MANIFOLD PRESSURE CONSISTENT WITH A SUPERCHARGER BELT FAILURE. RECONFIGURED FOR NORMALLY ASPIRATED OPERATION AND LANDED AT BRIDGEPORT. REMOVED THE ENGINE COWLING TO INSPECT THE SUPERCHARGERSDR 2022FA0000678Nut · looseSEE ATTACHED IPC 32-20-02 COTTER PIN ITEM 123. PAGE 2 19 SEP 2017 . CD MM INSTALLATION NOTES REDUCE THE POSSIBLE SHEAR FACTOR ON A "EDGE" OF THE PIN, SEE MM32-20 PAGE 28 (5) (G) AND FIGURE 32-206 (ATTACHED). AIRCRAFT RECEIVED FOR ANNUAL INSPECTION, DURINGSDR 2022FA0000217Mount · crackedENGINE MOUNT TRUSS ASSEMBLY HAS CRACKS APPROXIMATELY HALF WAY THROUGH THE BOTTOM TRUSS TUBE AT THE JUNCTION FOR THE MID-SPAN DOWN TUBE WELDS. THE CRACKS ARE PRESENT ON BOTH SIDES OF THE LOWER TRUSS (INBD AND OUTBD).SDR 2022FA0000165Drive Shaft · crackedLH MAGNETO DRIVE SHAFT FOUND CRACKED 3/4 OF THE LENGTH OF THE DRIVE SHAFT. THIS MAGNETO DRIVE OPERATES THE AFTER MARKET SUPERCHARGER FROM FORCED AEROMOTIVE.SDR 2021FA0000354None · nonePISTON PIN BROKE IN TWO, INSIDE BREAKAGE KEPT PARTS INTACT. P/N 630046 FOUND DURING CYLINDER EXCHANGE FOR LOW COMPRESSION CYLINDER, UNRELATED TO PIN FAILURE. PICTURES ON REQUEST AVAILABLE.SDR 2021FA0000279Piston Pin · brokenTHE ENGINE HAS HAD METAL IN THE FILTER. WE REMOVED CYLINDERS AND FOUND TWO PISTON PINS THAT WERE BROKEN. THE ENGINE WAS REMOVED FROM THE AIRCRAFT AND SENT TO CONTINENTAL FOR OVERHAUL.SDR 2021FA0000169Piston Pin · crackedAIRCRAFT CAME IN TO REPAIR STATION FOR LOW, BUT WITHIN LIMITS, COMPRESSION ON #3 CYLINDER. BORESCOPE ALSO SHOWED EVIDENCE OF OIL ON CYLINDER WALL AND OIL ON SPARK PLUG. CYLINDER # 3 WAS REPLACED. UPON JOB CLEANUP, IT WAS DISCOVERED THAT THE CAPS ON THE OIL SDR 2021FA0000111Alt Air Door · separatedPILOT REPORTED THROTTLE STUCK HALF WAY OPEN DURING FLIGHT. INSPECTED THROTTLE CONTROL AFT OF FIREWALL WITH NO DEFECTS. DISASSEMBLED Y PIPE THAT HOUSES THE ALTERNATE AIR FLAPPER VALVE AND FILTER. DISCOVERED MOST OF THE FLAPPER VALVE UP TO THE HINGE BOLT BROKSDR 6SKA202102191Transducer · intermittentFLUCTUATION OF INDICATED ENGINE OIL PRESSURE CAUSED BY FAILING OIL PRESSURE TRANSDUCER. OIL PRESSURE TRANSDUCER WAS CHANGED WITH A NEW TRANSDUCER AND ISSUE WAS RESOLVED. TRANSDUCER PN 12635-004.SDR 2021FA0000029Drive Assy · failedAIRCRAFT INSTALLED WITH SUPERCHARGER. REMOVED PULLY DRIVE ASSY FOR INSPECTION. NOTED DRIVE SHAFT SPLINE UNEVENLY WORN AND GALLED. PULLED ACCESSORY DRIVE RECEIVING SHAFT. NOTED MISSING MATERIAL FROM RECEIVING MATING AREA. SIGNIFICANT METAL PRESENT. CONFERRED WISDR FJTR20210110002Roll Servo · shortedPILOT REPORTED, "THE AUTOPILOT, AT TIMES, WOULD NOT JOIN THE LOCALIZER AND/OR GLIDEPATH. THE DAY I FLEW IT TO CONTOUR FOR MY ANNUAL, IT WOULD NOT HOLD A HDG HEADING AND KEPT POPPING THE CIRCUIT BREAKER." REPAIR STATION NOTES: OPERATIONAL CHECKOUT OF AUTOPILOSDR 2020FA0000562Piston Pin · destroyedNR 5 CYLINDER SUSPECTED CRACKED. CONFIRMED ON DYE PEN WITH A CRACK AT THE INJECTOR BOSS. REMOVED POWER ASSEMBLY FOR DISPOSAL. PISTON WRISTPIN WAS OBSERVED ROTATING WITHIN POWER ASSEMBLY, REMOVED WRISTPIN. WRISTPIN WAS BROKEN IN 2 PIECES WITH SEVERAL SIGNIFSDR FJTR20210110001Roll Servo · twistedPILOT REPORTED TODAY (SATURDAY) TOOK IT OUT TO FLY SOME APPROACHES MAKE SURE EVERYTHING WAS WORKING OK. LET THE AUTOPILOT FLY ONE APPROACH, NO ISSUES. HAND FLEW THE NEXT APPROACH AND WITHOUT TOUCHING THE ROLL TRIM IT WENT FULL RIGHT, SMOKE CAME FROM CENTER CSDR 2020FA0000490Exhaust Riser · elongatedNR 1 CYLINDER EXHAUST STACK HAS AN ELONGATED BOLT HOLE THAT IS ALLOWING FOR THE BOLT HEAD TO REST ON THE STACK AND IS WEARING INTO THE SIDE WALL. (PHOTOS TO FOLLOW.)SDR 2020FA0000449Magneto · inoperativeLEFT MAGNETO INTERNAL GEAR FAILURE. LESS THAN 200 HRS SINCE LAST MAGNETO OVERHAUL. THIS IS THE THIRD TIME ON SAME AIRCRAFT THAT THE LEFT MAGNETO HAS FAILED PRIOR TO SCHEDULED 500 HR INSPECTION, DUE TO PLASTIC DISTRIBUTOR GEAR STRIPPING/BROKEN TEETH. MAGNETOSDR IKBR2020072100003Connector · damagedPILOT FOUND STALL WARNING AND FUEL QUANTITY CIRCUIT BREAKERS TRIPPED ON TROUBLESHOOTING, FOUND CONNECTOR P1048 AND J1048 AT BS 293 FOR THE RECOVERABLE DATA LOGGER CORRODED, BURNED, AND MELTED. INSTALLED A NEW P1048 CONNECTOR AND INSTALLED REPAIRED DATA LOGSDR 2020FA0000359Check Valve · separatedAT CRUISE PILOT REALIZED A LOSS IN OIL PRESSURE. DECLARED AN EMERGENCY, AND LANDED. ON INSPECTION, FOUND THAT THE LEFT TURBO OIL INLET CHECK VALVE HAD SHEARED OFF AT THE THREADS GOING INTO THE TURBO OIL INLET. THIS CAUSED MOST OF THE OIL TO BE DUMPED OVER BOASDR 2020FA0000313Cylinder · brokenON CLIMB OUT THE ENGINE STARTED RUNNING ROUGH. VISUAL INSPECTION PERFORMED AND CYLINDER NUMBER 6 HAS FOUND TO BE BROKEN IN HALF.SDR 2020FA0000314Fuel Nozzle · brokenON CLIMB OUT THE ENGINE STARTED RUNNING ROUGH. VISUAL INSPECTION PERFORMED AND CYLINDER NUMBER 6 FUEL INJECTOR NOZZLE HAS FOUND TO BE BROKEN IN HALF.SDR 2020F00131Cylinder · crackedON ENGINE 100 HOUR IT WAS FOUND THAT 4 OF THE 6 CYLINDERS WERE CRACKED. ALL WERE EMANATING FROM THE UPPER SPARK PLUG HOLE TO THE FUEL NOZZLE HOLESDR 2019FA0000388Pump · abnormalPILOT TOOK OFF AFTER THE AIRCRAFT HAD A ROUTINE ANNUAL. AFTER 20 MIN OF FLIGHT THE ENGINE STARTED RUNNING ROUGH AND CUTTING OFF. HE SWITCHED THE FUEL SELECTOR AND TURNED ON THE BOOST PUMP. THE ENGINE STARTED TO RUN AGAIN. THE PILOT TURNED OFF THE BOOST PUMP ANSDR 2019FA0000347Crankshaft · failedIN FLIGHT FAILURE OF CRANKSHAFT. CRANKSHAFT SEPARATED AFT OF #2 MAIN BEARING. THERE WAS SEVERE DISTRESS OF THE #2 MAIN BEARING, CRANKCASE INTERIOR AND THE LOWER PART OF CYLINDERS 1 AND 2. ENGINE IMMEDIATELY LOST POWER. FORCED LANDING WAS SUCCESSFULLY PERFORMEDSDR 2019FA0000217Ignition Lead · burned outIN (2) YEARS THE BRAND NEW SPARK PLUG HARNESS SPRINGS COMPLETELY RUSTED AND BURNED OUT ON IGNITION HARNESS. APPEARS TO BE SUBSTANDARD STAINLESS STEEL SPRINGS AND GALVANIC CORROSION COMMON TO LEAD.
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