Event Summary
A pilot reported experiencing a fuel pressure problem prior to flight, but decided to proceed with the flight anyway. Shortly after takeoff, the engine lost partial power. To maintain engine operation, the pilot used the boost pump while executing a 180-degree turn to return to the runway for landing.
Landing and Gear Collapse
Just before touchdown, the pilot lowered the landing gear. However, the landing gear did not fully extend and lock before the airplane touched down. Although the main landing gear remained extended, the nose gear collapsed during the landing roll.
Post-Accident Inspection
A post-accident examination of the aircraft revealed a loose fitting on the fuel line that runs into the electric boost pump. The fitting appeared to have been leaking fuel for an extended period.
Maintenance History
The most recent annual inspection conducted on the airplane had been performed in 1981. No other maintenance issues were noted in the report.