Approach and Runway Change
The pilot was conducting an ILS approach to Runway 2 but was high on the glidepath. After receiving clearance to change from Runway 2 to Runway 20, the pilot executed a VFR circling approach at a very low altitude.
Tower Observations and Pilot Communications
The tower controller reported that the aircraft was so low that at one point it disappeared from sight. The controller then advised the pilot that he appeared to be low. The pilot acknowledged, stating that he was low on final approach and could see the red indication on the VASI (Visual Approach Slope Indicator).
Collision with Trees
A line of trees is located 3,500 feet from the approach end of Runway 20. These trees stand approximately 50 feet tall. The aircraft contacted the trees at an altitude of about 34 feet above ground level (AGL).
Environmental Conditions
The accident occurred at night under dark conditions. Visibility was reported as 5 miles.