What was found
FORCED LANDING, DUE TO ENG FAIL DURING TAKEOFF. DAMAGE TO AC INCLUDED LT MLG WAS BROKEN, LT WING TIP SKIN DENTED, LWR ENG COWLING DAMAGED. DAMAGE TO AC WAS CONSIDERED TO BE MINOR. INSP OF AC REVEALED LT FUEL TANK WAS FULL OF FUEL; FUEL QTY IN RT FUEL TANK COULD NOT BE DETERMINED. ENG OIL LEVEL WAS AT 6 QUARTS. CONTINUITY OF ENG CONTROLS, THROTTLE, MIXTURE, AND CARBURETOR HEAT WAS ESTABLISHED FROM COCKPIT TO ENG. ENG FUEL SYS LINES WERE DISCONNECTED FROM CARBURETOR, FUEL SAMPLE REVEALED CLEAN BLUE AVIATION FUEL. EXT INSP OF ENG REVEALED NO MECH ANOMALIES. ENG FUEL STRAINER COULD NOT BE DRAINED WITH ENG COWLINGS INSTALLED ON AC, THEREFORE FUEL STRAINER WAS NOT BEING DRAINED DURING PILOT'S PREFLIGHT INSP.