Accident Summary
During takeoff, the pilot reported that the airplane accelerated normally to climb speed. At about 100 feet above ground level (AGL), he observed that the manifold pressure was low, while all other engine readings appeared normal. Shortly thereafter, the engine rapidly lost power.
Landing Attempt
The pilot attempted to land in a hay field adjacent to the airport. During touchdown, the main gear dug into wet and soft ground, causing the airplane to nose over. The pilot stated that engine power at touchdown was minimal to zero.
Post-Accident Examination
Examination of the airplane revealed no anomalies. The pilot indicated that he could not remember how the switches were configured for takeoff.
Relevant Manual Notes
The Cessna A188B Owner's Manual includes a note under the HOT WEATHER/HOT ENGINE START (300 Horsepower Engine) section: "During a restart after a brief shutdown in extremely hot weather, the presence of fuel vapor may require the auxiliary fuel pump to operate in the 'ON' position for up to 1 minute or more before the vapor is cleared sufficiently to obtain 8 to 10 gallons/hour for starting."
Additionally, under the TAKE-OFF section, the manual states: "With 300 horsepower engines, it is important that the auxiliary fuel pump be turned off for take-off. Otherwise, the mixture will be excessively rich, causing a serious loss in power."
Pilot Statement
The pilot reported that he could not recall the configuration of the switches prior to takeoff.