What happened
The aircraft was engaged in a cross-country operation conducted under visual flight rules without an active flight plan. During the transit, the pilot inadvertently entered instrument meteorological conditions (IMC). The loss of visual reference led to a controlled flight into terrain event where the aircraft impacted the side of a mountain at an altitude of 10,800 feet. The peak in question rises to 12,349 feet.
Following the impact, the aircraft was missing for four days. It was eventually located by search aircraft from the Civil Air Patrol. Records indicate that the pilot had received two separate briefings from flight services prior to or during the flight. In both instances, the pilot was explicitly advised that visual flight conditions were not recommended.
The investigation
The primary finding centers on the decision to continue the flight into deteriorating weather. Despite receiving explicit warnings that visual flight was not advisable, the pilot proceeded and encountered IMC. The collision with the mountain at 10,800 feet confirms the failure to maintain terrain clearance while operating in conditions requiring instrument flying capabilities.
Findings
The accident resulted from the pilot's decision to fly into known instrument meteorological conditions without adequate preparation or equipment for such an environment. The prior warnings regarding weather conditions were ignored or misunderstood, leading directly to the collision with terrain.