Continental C85-12F

Service difficulty reports · 28

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 = 'C8512F'
  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 2025FA0000450Air Box · inflt separationINSTALLED NEW UNIVAIR FAA/PMA CARBURETOR AIR-BOX, P/N U4-601-1 (144348). AFTER 1.3 HOURS FLIGHT TIME THE AIR OUTLET TUBE FLANGE ON THE BOTTOM OF THE BOX WHICH HAD BEEN ATTACHED BY SPOT WELDING, COMPLETELY SEPARATED AT THE SPOT WELDS AND DEPARTED FROM THE AIRCRJul 5, 2025 · N82439 · Aronca LSA7BCM · Engine Air Intake SystemSDR 2024FA0000555Isolation Mount · crackedDURING THE REPLACEMENT OF THE ENGINE MOUNTS, WE FOUND THAT THE TORQUE CALLED OUT IN THE MAINTENANCE MANUAL (CESSNA 100- SERIES SERVICE MANUAL 1962 AND PRIOR PARA 12-10(B) AND PAGE 1-8 FOR 3/8-24 AN310 SELF LOCKING NUT NOTE 2 (160-190 IN. LBS)) APPEARS TO BE EAug 1, 2024 · N72885 · Cessna 140 · Engine Mount SectionSDR 2023FA0000315Propeller · brokenABOUT FIVE INCHES OF PROPELLER BLADE #1 SEPARATED FROM TIP DURING FLIGHT REQUIRING AN IMMEDIATE EMERGENCY LANDING.Apr 27, 2023 · N6384H · Piper J3C* · Propeller AssemblySDR 2022FA0000173Magneto · brokenMAGNETO IMPULSE BROKEN INTO SEVERAL PARTS. HAVE PHOTOS OF THE PARTS THAT CAN BE E-MAILED UP ON REQUEST.Mar 29, 2022 · Magneto/DistributorSDR 2016FA0000187Wheel Half · failedLEFT INNER WHEEL HALF FAILED ON LANDING ROLL. RACE SHELF BROKEN OFF AND FOUND INSIDE WHEEL. NO DAMAGE TO LANDING GEAR AXLE, BRAKE SHOE MECHANISM/INSTALLATION, LANDING GEAR STRUTS, LANDING GEAR BRACES OR FABRIC TRIANGLE COVERS. NEW RACES AND BEARINGS INSTALLJan 31, 2016 · N47185 · Aronca 058B · Wheel/Ski/FloatSDR CA120516001Brake Assy · failed(CAN) LT BRAKE ASSY FAILED ON LANDING AND APPLICATION OF BRAKES. BRAKE ROTOR AND BRAKE CALIPER DESTROYED AFTER APPLICATION AND RENDERING BRAKE SYS INOPERATIVE ON ROLL OUT AND TAXI.Apr 21, 2012 · Univar 415* · Landing Gear Brake SystemSDR CA091113003Guide · broken(CAN) BROKEN VALVE GUIDE DETECTED AS THE ANNUAL 1 100 HR INSPECTION. CYLINDER ASSY REMOVED, LOW COMPRESSION ON DIFFERENTIAL TEST 20/80 SENT TO AMO FOR REPAIR NOTE: CYLINDER ASSY WAS PURCHASED NEW OCT. 2004 - 245.0 HR.Nov 5, 2009 · Cessna 140 · Reciprocating Engine Cylinder SectionSDR 2009FA0000622Crankshaft · shearedCRANKSHAFT SHEARED WHILE IN FLIGHT.Jun 11, 2009 · N9382 · Doug DC3C · Reciprocating Engine Power SectionSDR 2008FA0000301Muff · failedAFTER A FLIGHT, IT WAS NOTED THAT A PORTION OF SCAT HOSE WAS HANGING FROM THE BOTTOM OF COWLING OPENING. UPON INSPECTION IT WAS FOUND THAT THE CARBURETOR HEAT FLANGE HAD SEPARATED WITH THE SCAT HOSE ATTACHED WITH CLAMP FRO THE IB HALF OF THE RT CARB HEAT MUFFApr 18, 2008 · N2004 · Luscom 8E · Engine Air Intake SystemSDR 2008FA0000153Chain · looseLT FUEL GAUGE INDICATED 10 GAL. IN TANK AT ALL FUEL LEVELS. THE TANK WAS DRAINED AND ACCESS COVER REMOVED. THE FUEL CAP RETAINING CHAIN WAS FOUND TO HAVE COME LOOSE ON THE TANK END (S) HOOK AND WRAPPED AROUND THE ARM ON THE FUEL LEVEL SENDING UNIT LOCKING IT AFeb 12, 2008 · N5055Q · Cessna 172S · Fuel StorageSDR CA070717009Bracket · broken(CAN) V-BRACKET OF SPINNER BROKE ON ONE SIDE, THAT CAUSED OFFSET OF SPINNER WHICH CAUSED VIBRATION AND DECIDED TO CONDUCT A PRECAUTIONARY LANDING ON A FARMERS FIELD. NO FURTHER DAMAGE. (TC NR 20070717009)May 12, 2007 · Cessna 120 · Propeller Spinner SectionSDR 2006FA0001034Oil Filter · contaminatedDURING CRUISE FLIGHT, OIL PRESSURE DROPPED TO BELOW MINIMUM REDLINE. PRECAUTIONARY LANDING WAS MADE. ON INSPECTION, DISCOVERED RECENTLY INSTALLED (2 HOURS IN SERVICE) OIL FILTER HAS DESIGN AND/OR MANUFACTURING DEFECT ALLOWING AN INTERNAL SEAL TO BE DAMAGED DOct 27, 2006 · N72951 · Cessna 140 · Reciprocating Engine Oil SystemSDR 2006FA0001035Oil Filter · contaminatedDURING CRUISE FLIGHT, OIL PRESSURE DROPPED TO BELOW MINIMUM REDLINE. PRECAUTIONARY LANDING WAS MADE. ON INSPECTION, DISCOVERED RECENTLY INSTALLED (2 HOURS IN SERVICE) OIL FILTER HAS DESIGN AND/OR MANUFACTURING DEFECT ALLOWING AN INTERNAL SEAL TO BE DAMAGED DOct 27, 2006 · N72951 · Cessna 140 · Reciprocating Engine Oil SystemSDR CA040430001Rib · corroded(CAN) DURING INSPECTION TO COMPLY WITH AD 2003-21-01 SEVERE CORROSION FOUND ON FORWARD END OF RIB, AFT OF REAR SPAR, IN THE RT CENTER SECTION, BETWEEN THE FUSELAGE AND WING. THE CORROSION WAS NOT READILY NOTICEABLE UNTIL INSTALLATION OF INSPECTION PANELS SK 80Apr 26, 2004 · Univar 415CD · Wing SparSDR CA040312003Cylinder Head · misaligned(CAN) ENGINE WAS SENT TO ENGINE SHOP FOR PROP STRIKE INSPECTION. UPON REINSTALLATION OF NR 1 CYLINDER, IT WAS DISCOVERED THAT THE BARREL AND HEAD WERE MISALIGNED BY APPROX. 5 DEGREES (UNIT WAS REPLACED). ENGINE SHOP ADVISES THIS IS A DEFECT OCCURING DURING OMar 12, 2004 · Cessna 120 · Reciprocating Engine Cylinder SectionSDR 2004FA0000080Spar · corrodedAD 2002-26-02 CORROSION INSPECTION: REMOVED BOTH WINGS AND BOTH FUEL TANKS. INSPECTED ENTIRE CENTER SECTION AND FOUND FOUR QUARTER SIZED AREAS OF LIGHT CORROSION ON FWD SIDE OF FRONT CENTER SECTION SPAR. CORROSION AREAS WERE SANDED WITH 240 GRIT SANDPAPER AND Jan 19, 2004 · N93517 · Univar 415C · Wing SparSDR 2003FA0000618Rib · corrodedAD 2002-26-02 ADMENDMENT 39-12987, MFG SERVICE BULLETIN NR 31. METHOD 1, INSPECTION HOLES IN WING CENTER SECTION. INSPECTED FRONT AND REAR SPARS...NO EVIDENCE OF CORROSION. DISCOVERED CORRODED RIB, RIGHT SIDE TRAILING EDGE WING WALK BOX. REMOVED AND REPLACED Jun 10, 2003 · N147VX · Univar 415C · Wing, Rib/BulkheadSDR CA030515003Bellcrank · cracked(CAN) DURING INVESTIGATION THE RUDDER BELLCRANK WAS FOUND CRACKED.May 9, 2003 · Cessna 120 · Rudder Control SystemSDR 99ZZZX4684Rod · failedPILOT REPORTED LOSS OF OIL PRESSURE. THIS WAS FOLLOWED BY ABNORMAL ENGINE SOUNDS. UPON INSPECTION, THE ENGINE TURNED FREELY, THE CABLE WAS FOUND CRACKED ABOVE THE NR 4 CYLINDER. CRACK APPEARS TO HAVE BEEN CAUSED BY A BROKEN CONNECTING ROD.Nov 29, 1999 · N76470 · Cessna 120 · Reciprocating Engine Cylinder SectionSDR 99ZZZX3066Piston Ring · failedREMOVED CYLINDERS BECAUSE LOWER COMPRESSION. FOUND BROKEN RINGS ON NR 2, NR 3, AND NR 4 CYLINDERS. CAUSE UNKNOWN.Jul 1, 1999 · N77310 · Cessna 140 · Reciprocating Engine Cylinder SectionSDR AU990098Crankshaft · damaged(AUS) CRANKSHAFT AND TIMING GEARS DAMAGED. ENGINE HAD BEEN OVERHAULED IN THE USA APPROXIMATELY 285 HOURS PREVIOUSLY.Jan 20, 1999 · Univar 415D · Reciprocating Engine Power SectionSDR CA980602091Blade · corroded(CAN) PROPELLER RECEIVED FOR CORROSION INSPECTION. CORROSION REMOVED.May 29, 1998 · Piper J3F65 · Propeller Blade SectionSDR 98ZZZX2687Generator · failedPARTS 530412 NUT, 2.531325 GEAR 530407, SLEEVE 4.632050 BUSHING 352030 RETAINER. THESE COMPONENTS FAILED CAUSING THE GENERATOR SHAFT TO FAIL. THE PARTS WERE CHEWED UP BY THE CAMSHAFT GEAR AND METAL CONTAMINATED THE OIL SYSTEM. THE ACCESSORY CASE WAS ALSO DADec 12, 1997 · N84L · Bbavia S7DC · DC Generator-AlternatorSDR CA970709003Vertical Stab · cracked(CAN) LEADING EDGE 4130 TUBE OF VERTICAL STABILIZER FOUND CRACKED THROUGH JUST ABOVE THE SOCKET ON THE FUSELAGE.Jun 16, 1997 · Fleet FLEET80 · Vertical Stabilizer, Spar/RibSDR 97ZZZX790Distributor Blk · wornTROUBLESHOT IGNITION SYSTEM. FOUND LEFT MAGNETO TO BE PROBLEM. DISASSEMBLED MAGNETO AND FOUND ROTOR GEAR RUBBING ON DISTRIBUTOR BLOCK HOUSING. DISTRIBUTOR BLOCK HOUSING WAS WARPED. ALSO FOUND BUSHING IN DISTRIBUTOR BLOCK HOUSING WAS WORN THROUGH ON SIDE TOJan 20, 1997 · N1859V · Cessna 140 · Magneto/DistributorSDR 97ZZZX557Valve · failedNR 1 CYLINDER SWALLOWED EXHAUST VALVE. HEAD OF VALVE EMBEDDED IN PISTON.Dec 16, 1996 · N87226 · Univar 415C · Reciprocating Engine Cylinder SectionSDR CA960527006Spar · cracked(CAN)ON INSPECTION THE REAR SPAR WAS FOUND FAILED (CRACKED) AT THE RIGHT HAND REAR SPAR ROOT END BISCUIT. IT WAS NOTED TO HAVE FAILED ACROSS THE TOP AT THE SECTION OF THE SPAR THAT IS MILLED OUT TO ACCOMMODATE THE BISCUIT DOUBLERS. SUBMITTER STATES THAT THE AIApr 15, 1996 · Bbavia 7BCM · Wing SparSDR CA960304004Fuel · contaminated(CAN) DURING FINAL APPROACH, ENGINE STARTED TO RUN ROUGH, BUT WORKING THROTTLES SEEMED TO FIX PROBLEM. ON SHORT FINAL, ENGINE QUIT AND THEN PROPELLER STOPPED. GLIDE INITIATED BUT LANDED SHORT IN A SHED. INVESTIGATION REVEALED THAT FUEL LINE FROM STRAINER HAD BFeb 13, 1996 · Fleet FLEET80 · Fuel Storage
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