Approach and Weather
According to the transcript, the pilot was cleared for an ILS approach to Runway 30 approximately 2 miles from the outer marker. At that time, the weather information provided to the pilot indicated an indefinite ceiling of zero, sky obscured, and visibility zero in fog.
Pilot's Actions
The pilot stated that an instrument approach was planned but noted a clear area observed south of the airport. The pilot then entered this clear area and attempted to fly to the airport beneath the fog.
Accident Sequence
During the attempted flight below the fog, the aircraft struck a utility pole west of the Runway 30 localizer course. After striking the pole, the aircraft circled left and subsequently crashed.
Post-Accident Findings
Following the accident, examination of the aircraft's glide slope receiver revealed that its sensitivity was below the manufacturer's specifications. The source notes that this condition would have resulted in a glide slope "off" indication in the cockpit.