Accident Overview
A pilot was maneuvering an aircraft along a pipeline in an attempt to locate what was thought to be a possible leak. The pilot made several passes over the area, trying to pinpoint the source. After multiple attempts, the pilot radioed the repair crews on the ground, instructing them to proceed to their next job assignment.
Witness Account
A witness reported observing the airplane circle the area several times, with each pass being lower than the previous one. During the final pass, the airplane descended below the tree line. Shortly thereafter, the aircraft made a climbing left turn, described as having an "acute angle up," just prior to descending and impacting the ground.
Aftermath
The accident resulted in damage to the aircraft. No further details are available from the source regarding injuries, fatalities, or the condition of the pilot. The investigation into the circumstances of the accident is not described in the source.