Accident Overview
An aircraft collided with a tree in mountainous terrain while operating at night under instrument meteorological conditions (IMC). The pilot had diverted from the planned destination after encountering adverse weather. According to the investigation, the pilot, who was not rated for instrument flight, was flying at a low altitude in mountainous terrain when he encountered rain, low clouds, and gusting wind.
Weather Conditions
A highway patrol officer, who is also a licensed pilot, reported that the weather in the area at the time of the accident was IMC. The conditions included rain, low cloud ceilings, and gusty winds, which are consistent with instrument meteorological conditions.
Aircraft Examination
Investigators found no evidence of mechanical failure or malfunction with the airplane. The examination did not reveal any pre-existing issues that could have contributed to the collision.
Pilot Background
The pilot held a non-instrument rating, meaning he was not certified to fly solely by reference to instruments in limited visibility conditions. Despite this, he continued flight into adverse weather, which likely contributed to the circumstances leading to the collision.