Continental O-470-U
Service difficulty reports · 128
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 = 'O470U' 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 = 'O470U' 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 2026FA0000158Mount · corrodedTHE DISSIMILAR METAL TAPE SUPPLIED IN STC SA00496SE (U-LINE ELECTRICAL TAPE) IS CAUSING CORROSION ON THE ENGINE MOUNT TO THE POINT OF REPLACING THE ENGINE MOUNT WITH IN 500-100HRS AFTER INSTALLING THE STC. THIS HAS HAPPENED ON THREE OF OUR FLEET AIRCRAFT IN THSDR 2023FA0000760Cylinder Head · low pressureCYLINDERS 2,4, AND 6 HAVE LOW COMPRESSION (30'S) THESE CONTINUE TO LOWER WITH EACH ANNUAL INSPECTIONSDR 2023FA0000376Camshaft · distressedDURING ROUTINE MAINTENANCE SEVERE DISTRESS OF CAMSHAFT LOBE AND LIFTERS WAS IDENTIFIED. THE MAINTENANCE WAS CARRIED OUT DURING INTERNATIONAL TRAVEL, IN AUSTRALIA. PLEASE CONTACT ME FOR PHOTOGRAPHS/ENGINE INSPECTION REPORT.SDR 2020FA0000352Cylinder · leakingCONTINENTAL (AIRBOSS) CYLINDER P/N 658598 S/N AC15FA427 INSTALLED ON AUGUST 31, 2015 PER THE ENGINE LOG BOOK. COMPRESSION TEST IN JULY 2020 IDENTIFIED LOW COMPRESSION ON THIS CYLINDER, WITH A LEAK IN THE EXHAUST VALVE. THE EXHAUST VALVE WAS REMOVED AND THE VSDR 2018FA0000015Cylinder Head · separatedENGINE VIBRATION. DISCOVERED NR 3 CYLINDER LOW PRESSURE, AT 20 PSI DURING TEST. FOUND THE CYLINDER HEAD AND BARREL SEPARATING AFTER REMOVAL.SDR 2016F00214Tube · brokenWHILE PERFORMING A PART 91 FLIGHT TRAINING, PILOTS EXPERIENCED CONTROL YOKE OSCILLATION. RETURNED TO AIRPORT WITHOUT INCIDENT. DURING INSPECTION, FOUND TRIM TAB TUBE BROKEN AS SECONDARY DAMAGE. BELIEVE PRIMARY FAILURE OF ELEVATOR COUNTER BALANCE WEIGHT ATTACSDR 2015FA0000591Cylinder Head · crackedPILOT REPORTED A LOSS OF 300-400, RPM SHORTLY AFTER TAKEOFF AND RETURNED TO AIRPORT. PERFORMED COMPRESSION CHECK AND FOUND 3 CYLINDERS CRACKED FROM THE INTAKE VALVE TO THE SPARK PLUG HOLE, CYLINDERS 1, 2 & 5. CYLINDER NR 3 WAS ALSO FOUND TO HAVE LOW COMPRESSISDR 2015FA0000611Control Wheel · crackedDURING A CHECK FLIGHT PILOT'S CONTROL YOKE CRACKED AND SEPARATED ON THE LT SIDE, ON THE LT HORIZONTAL SECTION, 1" FROM THE LT 90 DEGREE BEND FROM VERTICAL. YOKE PN IS UNKNOWN SINCE CURRENT PARTS MANUALS ONLY LIST CURRENTLY AUTHORIZED CONTROL YOKE PNS ALTHOUGHSDR 6NAR2015FA0000566Gasket · leakingALL VALVE COVERS FOUND LEAKING. REMOVED ALL VALVE COVERS AND FOUND THE UPPER SECTION OF THE VALVE COVER GASKET NEAR THE EXHAUST VALVE HAD SHRUNK, PULLING IN TOWARD EXHAUST VALVE SPRING. WE HAVE FOUND THIS ISSUE ON NUMEROUS ENGINES WITH THE SUPERIOR VALVE COVSDR Y2GR2014102900637Cylinder · crackedCYLINDERS WERE REMOVED FOR LOW COMPRESSION. VISUAL INSPECTION FOUND THREE CYLINDERS LEAKING AROUND THE HEAD TO BARREL THREADS.SDR Y2GR2014102900639Cylinder · crackedCYLINDERS REMOVED DUE TO LOW COMPRESSION, FOUND 3 CYLINDERS WITH HEAD TO BARREL LEAKAGE.SDR CA140326020Bearing · corroded(CAN) PROP WAS TESTED DURING A ROUTINE INSPECTION FOR OPERATION. ROUGHNESS WAS NOTED IN CYCLING THE PROPELLER. INVESTIGATION DETERMINED THAT THE BEARINGS AND PRE-LOAD BEARINGS WERE ROUGH DUE TO PITTING. PROP REMOVED FOR O/H.SDR 2013FA0000224Spark Plug · brokenWHILE COMPLETING A 1000 HOUR INSPECTION AND CLEANING THE SPARK PLUGS (XL URHB32S LOT 1269) 1 OF THE PLUGS WAS FOUND TO HAVE THE WIRE ELECTRODE LOOSE AT ITS ATTACHMENT TO THE END OF THE SPARK PLUG. THE WIRE COULD BE ROTATED UP OUT OF ALIGNAMENT WITH THE CENTER SDR 2013FA0000195Spark Plug · crackedREMOVED SPARK PLUGS FOR O/H AND REINSTALLED IN AUGUST 2012 AFTER O/H. RAN UP ENGINE FOR OIL CHANGE, NOTICED THE ENGINE WAS MISSING ON THE RT MAG DURING MAG CHECKED. REMOVED PLUGS TO CLEAN AND GAPPED AND FOUND NR 3 CYLINDER BOTTOM SPARK PLUG INSULATOR BROKEN.SDR 2011FA0000600Bushing · defectiveDEFECTIVE MAGENTO DRIVE BUSHINGS INSTALLED AT ENGINE O/H. CONTINUE HIS VFR FLIGHT BACK TO WHERE THE ACFT IS BASED. UPON REMOVAL OF THE VACUUM PUMP IT WAS NOTED THAT THE DRIVE SHAFT HAD MELTED/BURNED AWAY. REMOVED ACCESSORY DRIVE PAD AND NOTED THAT THE ACCESSDR 2011FA0000403Cable · looseAIRCRAFT LOST OIL IN FLIGHT, WAS ABLE TO MAKE IT TO ITS FINAL DESTINATION. THE AIRCRAFT LANDED SAFELY AT AN ALTERNATE AIRPORT. A MECHANIC AT THE AIRPORT HAD DISCOVERED THE TACH DRIVE HOUSING AND TACH CABLE HAD COME LOOSE. THE ENGINE WAS REMOVED AND RETURNEDSDR CA090902001Skin · corrodedDURING A NR3 AND NR4 INSP, CORROSION WAS FOUND ON SURFACE OF LWR LT AND RT FUSELAGE SKIN. IT WAS FOUND INSIDE THE COCKPIT BY THE PILOT`S/CO-PILOTS RUDDER PEDALS AREA, BEHIND THE TRIM PANEL. SKIN IN QUESTION ARE ONLY ALCLADDED, NO PRIMER OR PAINT WERE EVER APSDR 2009FA0000367Cable · frayedUPON APPLYING FULL THROTTLE FOR TAKEOFF, THE PILOT NOTED THAT THE ENGINE ONLY REACHED 2000 RPM. TAKEOFF WAS ABORTED AND A VISUAL CHECK OF THE PROPELLER GOVERNOR WAS MADE. THE MX RATED PILOT DETERMINED THAT THE CONTROL WAS STICKING BEFORE REACHING THE HIGH RPM SDR 2009FA0000467Tube · separatedA SIGNIFICANT PROBLEM OCCURRED IN THE FUEL INDUCTION SYSTEM, WHERE A RUBBER INTAKE TUBE CONNECTS THE INTAKE MANIFOLD TO THE FUEL INDUCTION RAIL. SHORTLY AFTER A FLIGHT WHERE ENTIRELY NORMAL OPERATION WAS EXPERIENCED, ENGINE RESTART COULD NOT BE ACCOMPLISHED. SDR 2009FA0000480Piston · failedCYLINDER NR 2 PISTON SKIRT BROKE FROM THE PISTON AND CREATED A METAL CONTAMINATION IN THE ENGINE. (K)SDR CA081014002Control Tube · gouged(CAN) THE BOLT PN AN21-10 ATTACHING THE LT ELEVATOR CONTROL CABLE PN 0510105-90 TO THE LT BELLCRANK CONTROL ARM ASSEMBLY PN 0760686-1 IS RUBBING ON THE LT BELLCRANK CONTROL TUBE SUPPORT PN 0760693-1. THE DAMAGE IS 0.039 DEEP, 1.750 LONG AND 0.250 WIDE.SDR 2007FA0000728Alternator · shortedALTERNATOR SHORTED, THIS UNIT IS (1) OF (3) REPLACED IN THE LAST MONTHS. (K)SDR CA070724003Elt · corroded(CAN) BATTERY CONNECTIONS HAD EXCESSIVE CORROSION AND EVEN THOUGH THE INDICATOR LAMP INDICATED THAT UNIT WAS WORKING THE UNIT HAD NO SWEEP OUTPUT (TC NR 20070724003)SDR 2007FA0000543Needle Valve · missingAT THE END OF THE FLIGHT, PILOT REPORTED THAT THE ENGINE WOULD NOT IDLE. DURING INSPECTION OF THE CARBURETOR, MECHANIC FOUND THE MIXTURE ADJUSTMENT NEEDLE VALVE MISSING. CARBURETOR WAS REMOVED AND SENT BACK FOR REPAIR.SDR 2006FA0000410Mount · crackedDURING ANNUAL INSPECTION THE LT AFT ENGINE MOUNT P/N 0751600-1 WAS FOUND CRACKED THRU THE ENGINE MOUNT BOLT AREA.SDR AU510001674Drive Belt · looseALTERNATOR DRIVE BELT LOOSE. LOSS OF ELECTRICAL POWER.SDR CA050706006Alternator · arced(CAN) DURING APPROACH INTO YYC, THE PILOT NOTED A SHORT, MODERATE BUZZING NOISE IN HEADSET. THERE WAS NO SIGN OF SMOKE BUT THE AMMETER INDICATED ZERO AMPS. THE PILOT LANDED WITH NO OTHER INDICATIONS. THE SYSTEM WAS INSPECTED AND FOUND THAT THE BATTERY STUD SDR 2005FA0000369Cable · burnedDEFECT WAS FOUND AT ENGINE REMOVAL AND FIREWALL CLEANING. THE ELECTRICAL CABLE BETWEEN AUX POWER RELAY AND STARTER RELAY WAS FOUND TO HAVE BURN MARKS AND OBVIOUS DAMAGE TO INSULATION. ADJACENT TO THE DAMAGED PORTION OF THE CABLE WAS A SHEET METAL SCREW IN THSDR CA040913003Block · worn(CAN) AILERON SYSTEM CONTROL TUBE ASSEMBLY FORWARD SHAFT P/N 1260141-6/10 WAS WORN 25-30% DUE TO A FAILED CORRODED SUPPORT BEARING P/N 0760633-1. SOME NEEDLES FROM THE BEARING ASSEMBLY WERE MISSING.SDR 2004FA0000743Cylinder · crackedON TAKEOFF AT CLIMB OUT, PILOT HEARD LOUD BANG FOLLOWED BY ROUGH ENGINE, DECLARED EMERGENCY AND LANDED WITHOUT FURTHER PROBLEMS. WITH OIL LEAKING FROM COWL, VISUAL INSPECTION NOTED HEAD SEPARATED FROM NR 6 CYLINDER. WITH COWL REMOVED AND CYLINDER OFF, IT WASSDR FSI072304Cylinder Head · separatedON CLIMB OUT THE NR 4 CYLINDER HEAD SEPARATED FROM THE BARREL.SDR 2004FA0000385Cylinder Head · separatedNR 1 CYLINDER HEAD SEPARATED FROM CYLINDER BASE IN FLT. MAY NEED TO BE ADDED TO AD 2004-08-10.SDR 2004FA0000370Cylinder · separatedNR 1 CYLINDER HEAD SEPARATED FROM CYLINDER BASE IN FLIGHT. (SO09200406841)SDR CA040322005Magneto · failed(CAN) THE LT MAGNETO FAILED OPERATIONAL MAGNETO CHECK DURING PRE FLIGHT RUN-UP. AT TIMES THE RPM WAS NOTED TO HAVE DROPPED BY 200. DURING SUBSEQUENT TROUBLESHOOTING IT WAS NOTED THAT THE MAGNETO DROP WAS WELL WITHIN LIMITS AT 50 RPM BUT WOULD LATER DROP TO A TSDR 2004FA0000058Oil Cooler · loose8/22/2002, OIL COOLER TCM 639171. TACH TIME NOT LOGGED. APPROX 830 SMOH. 12/1/2003 A MAJOR OIL LEAK DEVELOPED AROUND THE OIL COOLER AND THE NR 5 CYL PUSH ROD TUBES. ISOLATED LEAK TO OIL COOLER GASKETS. 1036 SMOH. DURING REMOVAL OF OIL COOLER BASE PLATE, ITSDR 2004FA0000055Piston · brokenREBARRELED CYL, ECI PISTONS. LOSS OF OIL PRESSURE, 260 STOH, 1043 SMOH. CAUSE, BROKEN NR 2 PISTON, PARTS BLOCKING OIL PICKUP SCREEN. POSSIBLE CAUSES. DEFECTIVE PISTON CASTING, DROPPED PISTON OR IMPROPERLY MACHINED NR 4 RING GROOVE, SQUARE CUT BOTTOM OF GROSDR 2004FA0000057Piston · brokenENGINE OVERHAULED. REBARRELED CYL, ECI PISTONS. LOSS OF OIL PRESSURE, 260 STOH, 1043 SMOH. CAUSE, BROKEN NR 2 PISTON, PARTS BLOCKING OIL PICKUP SCREEN. POSSIBLE CAUSES. DEFECTIVE PISTON CASTING, DROPPED PISTON OR IMPROPERLY MACHINED NR 4 RING GROOVE, SQUASDR AUS20031176Nut · loose(AUS) CYLINDER HOLDDOWN STUD NUTS MISSING OR LOOSE. MISSING NUTS FOUND IN ENGINE COWL.SDR CA030915011Bulkhead · cracked(CAN) DURING ANNUAL INSPECTION, TAIL INSPECTED, STA 124.0 FOUND BULKHEAD CRACKED IN CORNER. REPLACED WITH NEW. DURING REPLACEMENT FOUND ALSO BULKHEAD P/N 0712511 ON STA 140.0 CRACKED ON LT CORNER. REPLACED WITH NEW. POSSIBLE HARD LANDING DAMAGE.SDR 2004FA0000091Piston · failedTHE PISTON WAS INSTALLED NEW AT TIME OF MAJOR OVERHAUL. ONE SIDE OF PISTON SKIRT, AT LOWER SCRAPER RING BROKE AWAY AND BECAME SMALL CHUNKS OF ALUMINUM, AND RING PIECES IN THE OIL PAN. THE PROBLEM WAS DETECTED BY APPROX 5 EACH. .020 X .040 PIECES OF CAST ALUSDR AUS20030749Dowel Pin · misinstalled(AUS) CRANKSHAFT PROPELLER MOUNTING FLANGE PROPELLER LOCATING DOWELS INCORRECTLY FITTED. DOWELS HAVE A SLIGHT TAPER WHICH ALLOWS FOR A SLIP FIT INTO THE CRANKSHAFT AND AN INTERFERENCE FIT ONTO THE PROPELLER. THE DOWELS WERE INCORRECTLY FITTED WITH THE INTERFERSDR AUS20030375Bar · cracked(AUS) RUDDER BAR CRACKED AT BASE OF RUDDER PEDAL POST.SDR CA030214008Switch · sparks(CAN) SMOKE WAS SEEN COMING FROM THE NAV LIGHT SWITCH. THE SWITCH FELL OUT AND SPARKS WERE SEEN INSIDE THEOPENING. THE SPARKING STOPPED AFTER APPROXIMATELY 30 SECONDS. THE FAULT WAS CONFERMED BY MAINTENANC E. NO OTHER DAMAGE WAS EVIDENT. SWITCH IS TO BE REPLACSDR AUS20030012Firewall · damaged(AUS) PILOT REPORTED THAT THE RUDDER TRIM WAS NOT WORKING.INVESTIGATION FOUND DAMAGE TO THE FIREWALL AND SUPPORTING STRUCTURE.SDR CA021124001Magneto · damaged(CAN) WHILE PREFORMING ROUTINE MAINTENANCE, IT WAS FOUND THAT THE LT MAGNETO COULD NOT BE TIMED. IT APPEARS THAT THE MAGNETO POINTS ARE NOT OPENING. MAGNETO REPLACED WITH OVERHAULED UNIT AND TIMED NORMALLY. GROUND RUN CHECKS ALL OK.SDR CA021119006Bearing · corroded(CAN) PROPELLER WOULD NOT CHANGE PITCH. PROPELLER WAS SO BADLY CORRODED INTERNALLY THAT THE BEARING SEIZED. ENTIRE PROPELLER SCRAP DUE TO CORROSION. NO HISTORY OF PROPELLER HAVING BEEN SUBMERGED.SDR AUS20020763Connector · deteriorated(AUS) FLEXIBLE FUEL LINE CONNECTORS PERISHED.SDR AUS20020765Connector · deteriorated(AUS) FLEXIBLE FUEL LINE CONNECTORS PERISHED.SDR AUS20020937Bearing · failed(AUS) CRANKSHAFT MAIN BEARINGS SHOWED INDICATIONS OF PREMATURE FAILURE. BEARINGS PNO SA 633136 (2OFF) AND PNO SA 642720 (6OFF). ENGINEWAS BEING BULK STRIPPED FOLLOWING PROPELLER STRIKE.SDR 2002FA0000889Impulse Coupling · failedLEFT MAGNETO IMPULSE COUPLING FAILED IN FLIGHT. COUPLING PAWS BROKEN FROM BODY AND CAUSED MAGNETO CASE TO BREAK AT MOUNT PAD. MAGNETO MADE METAL INTO ENGINE BEFORE FAILING. WHEN AIRCRAFT PICKED UP AT HANGAR, NO OIL REGISTERED ON DIP STICK.
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