Incident Details
During the initial approach segment of an ILS approach, the pilot descended to an assigned altitude. Upon reaching that altitude, the pilot pushed the throttle forward to add power and level off. However, the pilot reported that no increase in engine power was observed.
Pilot Actions
In response to the lack of power, the pilot turned the fuel boost pump ON. Despite this action, no additional power was obtained. As altitude and airspeed continued to decrease, the pilot determined that the airplane could not reach the airport. A forced landing was subsequently executed on a field.
Postaccident Examination
An examination of the aircraft after the incident revealed no mechanical abnormalities. The engine was successfully started and operated at 1500 RPM without issue.
Standard Procedures
The pilot stated that it is his normal practice to have the auxiliary fuel pump ON during all approaches. However, the Pilot Operating Handbook's Normal Operating Procedures recommend that the auxiliary fuel boost pump be in the OFF position during descent.