Accident Overview
The airplane was on final approach to the runway after a night cross-country flight. The passenger reported seeing a tree above the aircraft to her right, then felt a bump. Subsequently, she observed power lines, saw a bright flash, and had no further recollection of the event.
Impact and Damage
The airplane struck an unlit 56-foot-high utility pole at the 46-foot level. The pole was located approximately 940 feet prior to the runway threshold. After impact, the airplane came to rest in a vertical position.
Runway and Lighting Information
The runway was 3,582 feet long and 60 feet wide, constructed of asphalt. It was equipped with medium intensity lighting. The runway had a 350-foot displaced threshold, which was marked with white paint and illuminated in accordance with FAA Advisory Circular 150/5340-30. The runway was not equipped with a visual glideslope indicator.
NOTAM Details
A Notice to Air Missions (NOTAM) had been issued about two weeks prior to the accident to inform pilots of an unlit 75-foot-high power line located 1,000 feet east of runway 27. The NOTAM was in effect at the time of the accident, and a printed copy was posted on the airport's bulletin board.
Glideslope Calculations
From the utility pole to the runway threshold, the calculated glideslope was approximately 3.41 degrees. From the utility pole to the displaced runway threshold, the calculated glideslope was approximately 2.49 degrees.
Night Flying Considerations
According to the FAA Airplane Flying Handbook, difficulties in perceiving altitude during night approaches are noted: "Distance may be deceptive at night due to limited lighting conditions... A low, shallow approach is definitely inappropriate during a night operation."