Accident Overview
A pilot took off with three adult passengers and a two-year-old child aboard, flying for approximately 1.3 hours. Prior to the accident, the pilot reported on a left downwind for runway 20. During the approach, the aircraft was observed over the runway at about 100 feet above ground level (AGL), reportedly at full power. However, the airplane was mushing and losing altitude. The aircraft subsequently crashed west of the departure end while on a southeasterly heading.
Witness Accounts
Two flight instructors reported that the aircraft had stalled or mushed. Two other witnesses stated that the engine was not developing power when the airplane crashed. However, the investigation found no preimpact part failure or malfunction.
Pilot Information
A check of the pilot's blood showed an alcohol level of 0.046%. The density altitude was about 4,200 feet.
Investigation Findings
The investigation did not identify any mechanical failure. The cause of the accident remains undetermined based on the available information.