Overview
The aircraft crashed into mountainous terrain at an elevation of approximately 1,800 feet, about two miles south of the airport. The flight had been cleared for the VOR-A approach.
Approach Details
The missed approach point was the 6 DME point from the Cambridge VOR on the 159-degree radial. The minimum descent altitude (MDA) for the approach was 1,740 feet.
The pilot stated that the aircraft's DME was intermittent. He believed there was a 10-knot tailwind and used a three-minute timing from the final approach fix to the missed approach point. According to the approach procedure, a three-minute time is used for an approach speed of 120 knots. However, recorded radar data showed that the aircraft's ground speed on the final approach fluctuated between 169 and 184 knots.
Weather Conditions
A witness at the airport described the weather conditions as ceiling indefinite zero obscured and visibility zero in fog.