# Service difficulty reports: Lycoming O-235-K2C A list on [Lycoming O-235-K2C](https://openairdocs.org/engine/lycoming-o-235-k2c.md). Newest first. General aviation reporting is voluntary. - [SDR 2026FA0000588](https://openairdocs.org/sdr/2026FA0000588.md): Spring · broken · May 8, 2026 · N634L · Bbavia 7ECA · Main Landing Gear > THIS BROKEN TAIL WHEEL CENTER SPRING IS PART OF A FIELD APPROVAL FOR INSTALLING THE SCOUT TAIL WHEEL SPRINGS ONTO AN 7ECA. THE REASON BEING THAT THE SCOUT TAIL WHEEL SPRINGS ARE STIFFER AND HANDLE THE STRESSES OF THE FLIGHT SCHOOL TRAINING ENVIRONMENT BETTER. - [SDR 2020FA0000172](https://openairdocs.org/sdr/2020FA0000172.md): Arm · worn · Feb 19, 2020 · Bbavia 7ECA · Engine Air Intake System > AMERICAN CHAMPION AICRAFT 7ECA CARBURETOR HEAT CONTROL CABLE ATTACHMENT BOLT IS WEARING ON THE CARBURETOR HEAT DOOR ARM TO THE POINT THE BOLT IS ALMOST CUT IN HALF. THERE ARE MULTIPLE INSTANCE OF THIS THAT HAVE BEEN SEEN IN THE HANGAR. - [SDR 2017FA0000459](https://openairdocs.org/sdr/2017FA0000459.md): Magneto · failed · Aug 22, 2017 · N797L · Bbavia 7ECA · Magneto/Distributor > INSTALLED A REBUILT MAGNETO DUE TO REMOVED THE MAGNETO NEEDING A 500 HOUR INSPECTION. AT AFTT 1347.7 (380.8 HOURS) THE REBUILT MAGNETO WAS REMOVED BECAUSE ENGINE BEGAN TO FOUL SPARK PLUGS QUICKLY AND HAD A SIGNIFICANT POWER REDUCTION WAS NOTED BY PILOTS DUR - [SDR 2017FA0000045](https://openairdocs.org/sdr/2017FA0000045.md): Distributor · loose · Sep 20, 2016 · N5054B · Bbavia 7ECA · Magneto/Distributor > AIRCRAFT WAS LANDED ON MUD FLAT NEAR KPAO. LOWER PLUGS WERE FOUND FILLED UP WITH LEAD. AFTER MORE INSPECTION IT WAS FOUND THAT THE MAGNETO DISTRIBUTOR WHEEL TAB HAD COME LOOSE, AND WAS RANDOMLY FIRING CYLINDERS. AT OUR SHOP WE NOW CLEAN THE PLUGS EVERY 25 HOUR - [SDR GM8S2015052900249](https://openairdocs.org/sdr/GM8S2015052900249.md): Distributor Gear · loose · May 13, 2015 · N797L · Bbavia 7ECA · Magneto/Distributor > DURING FLIGHT, ACFT HAD AN ENGINE POWER LOSS. DISCOVERED THE MAGNETO TO HAVE A LOOSE DISTRIBUTOR ARM, WHICH CAUSED THE MAGNETO TO FAIL. - [SDR GM8S2015052900250](https://openairdocs.org/sdr/GM8S2015052900250.md): Distributor Gear · loose · May 13, 2015 · N798L · Bbavia 7ECA · Magneto/Distributor > DURING FLT, ACFT HAD AN ENGINE POWER LOSS. DISCOVERED THE MAGNETO TO HAVE A LOOSE DISTRIBUTOR ARM, WHICH CAUSED THE MAGNETO TO FAIL. - [SDR CA140818016](https://openairdocs.org/sdr/CA140818016.md): Camshaft · worn · Aug 12, 2014 · Bbavia 7ECA · Reciprocating Engine Power Section > (CAN) LYCOMING FACTORY OVERHAULED ENGINE INSTALLED DEC. 2009. FIRST NOTICED METAL DURING INSPECTION ON MAY 2013 AT ENGINE TIME OF 353.6. IT WAS DETERMINED THAT THE AMOUNT OF METAL WAS MINIMAL OVER THE NEXT INSPECTION TIMES UNTIL AT ABOUT 585 HRS. ENG TT. A PRE - [SDR CA120510001](https://openairdocs.org/sdr/CA120510001.md): Spring · broken · May 5, 2012 · Bbavia 7ECA · Wheel/Ski/Float > (CAN) AFTER LANDING TAILWHEEL SPRING BROKE AND PUNCTURED THE TAIL WHEEL TIRE. - [SDR CA101104003](https://openairdocs.org/sdr/CA101104003.md): Plug · worn · Oct 21, 2010 · Reciprocating Engine Power Section > (CAN) FOUND ALUMINUM CONTAMINATION IN OIL SCREEN. FOUND NR 1+2 CYLINDER FORWARD SIDE PISTON PIN PLUGS WORN. FOUND THAT THE LOWER PISTON RING ON BOTH PISTONS CREATED A LIP AT THE BOTTOM OF THE CYLINDER BARREL ONLY ON THE FORWARD WALLS. THE PLUG WOULD THEN SL - [SDR CA100603001](https://openairdocs.org/sdr/CA100603001.md): Gasket · leaking · Jun 3, 2010 · Bbavia 7ECA · Fuel Control/Reciprocating Engines > BLUE FUEL STAINS VISIBLE ALONG GASKET LINE ON OUTSIDE OF CARBURETOR AND ALONG GASKET LINE IN AIRFLOW BORE. BOWL SCREWS CHECKED SECURE. SUSPECT POROUS GASKET OR WARPED CARB BODY MATING FACES. - [SDR CA070907003](https://openairdocs.org/sdr/CA070907003.md): Attach Fitting · faulty · Sep 6, 2007 · Bbavia 7ECA · Wing, Attach Fittings > (CAN) AD 96-18-02 AND THE AIRWORTHINESS LIMITATIONS FOR THIS AC REQUIRE THAT THE WING SPAR/STRUT ATTACH FITTINGS BE REMOVED AND NDI WITH FLUORESCENT DYE PENETRANT EVERY 1000 HOURS. NDI DISCLOSED A FLAW WITHIN THE METAL, APPARENTLY EXISTING WITHIN THE RAW STOC - [SDR CA070516001](https://openairdocs.org/sdr/CA070516001.md): Tube · broken · May 15, 2007 · Bbavia 7ECA · Fuselage Main, Structure > (CAN) WHILE PREFLIGHTING THE AC, THE PILOT NOTED WRINKLED FABRIC AT THE LOWER AFT END OF THE FUSELAGE. OPENING THE FABRIC REVEALED THAT THE VERTICAL TUBE THAT FORMS THE FIN SPAR AND IS THE ATTACH POINT FOR THE RUDDER HINGES AND TAILWHEEL SPRING AFT ATTACH WAS - [SDR CA060928003](https://openairdocs.org/sdr/CA060928003.md): Stringer · failed · Sep 9, 2006 · Bbavia 7ECA · Elevator, Spar/Rib > (CAN) AFTER RECOVERING FROM AN AEROBATIC MANEUVER, THE PILOT FOUND THAT FULL DOWN ELEVATOR TRAVEL COULD NOT BE OBTAINED. A UNEVENTFUL RETURN TO THE AIRPORT AND LANDING WAS CARRIED OUT. ONCE THE ELEVATOR BELLCRANK COVER WAS REMOVED, THE LT GUSSET FROM THE AFT - [SDR 2004FA0000837](https://openairdocs.org/sdr/2004FA0000837.md): Float · damaged · Sep 16, 2004 · N9253L · Amrgen AA1A · Fuel Control/Reciprocating Engines > ENGINE STALLED WHILE AIRCRAFT WAS ON FINAL APPROACH. DURING TEST RUN, ENGINE PERFORMED NORMALLY DURING RUN UP CHECK, IDLE CHECK AND MIXTURE CHECK AT 1000 RPM. HOWEVER, WHEN THE ENGINE LT AT IDLE (650 RPM) THE ENGINE WOULD BEGIN TO RUN RICH, LOPE AND QUIT RUN - [SDR CA040817006](https://openairdocs.org/sdr/CA040817006.md): Attach Fitting · chafed · Aug 16, 2004 · Bbavia 7ECA · Wing, Attach Fittings > (CAN) THE STRUT ATTACH FITTING ON FORWARD SPAR OF THE RH WING WAS CHAFED BY THE LEADING EDGE SKIN, WHICH HAD NOT BEEN TRIMMED ADEQUATELY DURING MANUFACTURE. THE CHAFING LEFT A SMALL DIMPLE THAT COULD LEAD TO CRACKING OF THE FITTING. - [SDR CA031121003](https://openairdocs.org/sdr/CA031121003.md): Spring · broken · Nov 13, 2003 · Bbavia 7ECA · Landing Gear Steering System > (CAN) BROKEN TAILWHEEL SPRING DISCOVERED DURING GROUND HANDLING. HOOK HAD BROKEN OFF ONE END. BREAK APPEARED TO HAVE STARTED AT BEND WHERE HOOK IS FORMED FROM SPRING COIL. - [SDR CA020322006](https://openairdocs.org/sdr/CA020322006.md): Control Cable · frayed · Mar 7, 2002 · Bbavia 7ECA · Elevator Control System > (CAN) DURING ACCEPTANCE INSPECTION BEFORE ADDITION TO FLEET, THE TRIM CABLES WERE FOUND TO BE CHAFING ON THE TOP ELEVATOR CABLE. THESE CABLES RUN IN CLOSE PROXIMITY TO ONE ANOTHER AND IT APPEARS THAT THE ELEVATOR CABLE WAS RUN OVER THE TRIM CABLES RATHER THAN ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```sql 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 = 'O235K2C' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/engine/lycoming-o-235-k2c/reports --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.