What happened
The pilot initiated a localizer approach toward runway 26 under instrument flight rules. Automated weather observation systems reported broken clouds at 300 feet and overcast layers at 1,000 feet and 3/4 mile visibility, indicating marginal visual meteorological conditions. The published minimum descent altitude for this specific approach procedure was established at 500 feet above ground level.
A witness observed the airplane flying unusually low before it impacted a powerline located approximately 4,441 feet from the end of the runway. The pilot later reported seeing the runway lights momentarily before they disappeared from view. He described a bright flash of light occurring at or on top of his right wing just prior to the impact.
Findings
The aircraft was operating below the published minimum descent altitude during the final segment of the approach. The combination of low cloud bases and reduced visibility likely contributed to the pilot's inability to maintain visual reference with the runway environment. The powerline, which was not visible due to the weather conditions and lighting, served as the primary obstacle struck by the aircraft.
Safety message
Pilots must strictly adhere to published minimum descent altitudes during instrument approaches. Flying below these altitudes without established visual references significantly increases the risk of controlled flight into terrain or obstacles, particularly in marginal weather conditions where powerlines and other infrastructure may be difficult to see.