Accident Overview
The flight was conducting a non-precision NDB approach to runway 04. The crew reported the procedure turn inbound and were cleared to switch to the advisory frequency.
Witness Observations
Witnesses saw the airplane emerge from the base of an overcast cloud layer in a nose-down attitude of 10° with a 45° left-wing-down bank. The aircraft subsequently struck terrain approximately three-quarters of a mile south-southeast of the airport.
Weather Conditions
At the time, witnesses reported ceilings around 100 feet above ground level and visibility of about 500 feet in light rain and fog. The minimum descent altitude for the approach was 465 feet above ground level.
Fatalities
Both pilots on board were killed in the accident.
Probable Cause
According to the official investigation, the probable cause was the pilots' failure to maintain the minimum descent altitude during the approach. The weather and dark night light conditions were cited as contributing factors.