Accident Overview
A forced landing off airport in a partially cultivated field resulted in the nose gear being sheared off the aircraft. The incident occurred after the engine lost power at approximately 100 feet above ground level (AGL) during the takeoff phase. The pilot reported that he checked the mixture, throttle, fuel selector, and turned on the electric fuel pump in response to the power loss. Despite these actions, the engine continued to lose power, necessitating an immediate landing in the field.
Post-Accident Examination
Following the accident, the carburetor was removed and subjected to testing. The examination identified only one questionable area: the possibility that the composite float had become saturated and heavy. This condition was suspected to have resulted from the use of automotive fuel in the aircraft.
Findings and Observations
The investigation noted that the aircraft was equipped with a carburetor that utilized a composite float. The float's condition, possibly compromised by the use of automotive fuel, was highlighted as the sole area of concern. No other mechanical issues were identified during the carburetor test.
Conclusion
The forced landing was executed successfully, although the aircraft sustained damage including the shearing of the nose gear. The loss of engine power during takeoff was attributed to an undetermined carburetor issue, with the saturated float being considered a potential factor.