Incident Overview
A pilot was en route to Tyler, Texas, when the engine lost power. The pilot reported activating the carburetor heat and moving the fuel selector from both to either the left or right position while attempting to restart the engine. The engine did not restart, necessitating a forced landing.
Landing and Post-Accident Condition
Upon touchdown in a soft field, the airplane nosed over and came to rest in an inverted position. Attempts to start the engine during a subsequent test run were unsuccessful.
Examination and Findings
Examination of the magnetos revealed that the contacts in both magnetos were not opening when the rotor was turned. The contacts were adjusted and the internal timing was set in accordance with the manufacturer's maintenance manual. After the magnetos were reinstalled, the engine started and operated normally.