2002-08-16: Piper PA-25-235 — Boulder, CO

Casualties unknown • Boulder, CO, US

Probable cause

the pilot's inadequate preflight preparation, which resulted in fuel exhaustion and a subsequent loss of engine power, and his failure to maintain adequate airspeed during the forced landing, which resulted in an inadvertent stall/mush. Factors included the changing wind conditions, the high density altitude, and the lack of suitable terrain for a forced landing.

— NTSB Determination

Accident narrative

The pilot said that he checked his flight time and fuel gauges (including fuel low level indicator light) before takeoff. While towing a glider, he experienced fuel exhaustion. He performed a forced landing to an open field, but the wind changed from a estimated 15 to 20 knots to no wind situation when he got close to the ground. The airplane stalled from about 8 or 10 feet, hit the ground, and nosed over. The engine was crushed back, and the left wing was separated from the fuselage. The calculated density altitude was 11,361 feet.

Frequently asked questions

What happened in the 2002-08-16 Piper PA-25-235 accident near Boulder, CO?

What aircraft was involved and where did it happen?

The accident on 2002-08-16 involved a Piper PA-25-235, registration N9791P, at Boulder, CO.

What was the probable cause of the accident?

the pilot's inadequate preflight preparation, which resulted in fuel exhaustion and a subsequent loss of engine power, and his failure to maintain adequate airspeed during the forced landing, which resulted in an inadvertent stall/mush. Factors included the changing wind conditions, the high density altitude, and the…

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