Flight Diversion and Initial Approach
The pilot had completed an all-day flight from Vero Beach, Florida, and was en route to the intended destination. However, due to conditions at the destination, the pilot diverted to the alternate airport at Twin Falls, Idaho. Upon arrival, the pilot attempted a coupled instrument landing system (ILS) approach.
Autopilot Disengagement and Missed Approach
During the coupled ILS approach, the autopilot disengaged. The pilot subsequently executed a missed approach. Attempts to reengage the autopilot were unsuccessful, leading the pilot to elect to hand fly the approach.
Second Approach and Impact
On the second approach attempt, the pilot descended below the glide path. The aircraft then impacted terrain. The collision occurred in a level plowed field. After impact, the aircraft rolled over.
Weather Conditions at the Time
Meteorological conditions at the time of the occurrence were reported as one half mile visibility and a 200-foot obscured cloud layer.
Post-Impact Actions
Following the impact, the pilot attempted to use the radios. Discovering that the emergency locator transmitter (ELT) was not transmitting, the pilot manually activated the ELT.