Accident Sequence
During a cross-country flight, the aircraft experienced fuel exhaustion after the pilot overflew multiple possible fuel stops. The loss of power to both engines resulted in a collision with heavily wooded terrain.
Preflight Planning
The pilot did not adequately plan for the effects of known adverse weather, including strong winds aloft and mountain wave activity. Fuel consumption calculations for the planned flight were not performed.
Inflight Decisions
Despite the adverse weather conditions, the pilot elected to continue toward the destination without making intermediate fuel stops. The decision to overfly available refueling opportunities contributed to the fuel exhaustion.
Fuel Exhaustion
The fuel supply was completely depleted, causing both engines to lose power. The aircraft was unable to reach an alternate landing site and collided with terrain.