Accident Summary
A private pilot conducting a LOC RWY 17 instrument approach in instrument meteorological conditions lost control of the airplane approximately 2 miles from the airport. The airplane decelerated, lost altitude, and entered a left turn before colliding with terrain and coming to rest on residential property. Radar data revealed the airplane was never stabilized on the approach.
Flight Details
The pilot, seated in the left seat, was executing the approach when the airplane slowed and began a left turn. Radar data indicated that about 3 miles from the airport, the airplane's speed reduced to 80 knots, and 18 seconds later, as the left turn began, it further decelerated to 68 knots. Weather reported at the airport 25 minutes before the accident included wind from 140 degrees at 5 knots, visibility 1 statute mile, and a ceiling of 500 feet overcast. Conditions 5 minutes before the accident showed wind from 140 degrees at 5 knots, visibility 1 statute mile, and a ceiling of 300 feet overcast.
Witness Account
A witness, also a private pilot, reported seeing the airplane "appear" out of the fog at an estimated altitude of 300–400 feet above ground. The aircraft was in a left bank with its nose pointed down and appeared to be traveling fast. According to the witness, the airplane then "simultaneously and suddenly level[ed] out," pitched up, and engine power increased. The witness believed the pilot realized the aircraft was low and attempted to climb. Subsequently, the airplane descended in a nose-high attitude, approximately 65 degrees, toward the trees.
Investigation Findings
Post-accident examination of the airplane and engine found no mechanical deficiencies that would have contributed to the loss of control. The official probable cause was determined to be the pilot's failure to fly a stabilized, published instrument approach procedure, and his failure to maintain adequate airspeed, which led to an aerodynamic stall.