Cessna 140 N2341N accident near Boulder, Utah

Probable cause

The pilot’s improper decision to maneuver at a low altitude and failure to adequately monitor the environment to maintain clearance from power lines.

NTSB analysis

A witness stated that he observed the airplane fly over his position near a state highway at an altitude he considered "low" and that the airplane's engine sounded "loud." Shortly after, he observed the airplane impact power lines that local power company personnel estimated to be about 100 feet above ground level. All major structural components of the airplane were located within close proximity to the collision location. A postaccident examination of the airframe and engine revealed no evidence of mechanical malfunctions or failures that would have precluded normal operation. Witness marks located on the right wing were consistent with damage from impact with the power lines. Local residents reported having witnessed the pilot flying at low altitudes on previous flights. Based on these reports, as well as the accident witness report, it is likely that the pilot was flying at a low altitude during the accident flight and failed to maintain clearance from the power lines.

Text from the NTSB. Open the NTSB docket for WPR13FA095 for the full record.