NTSB Identification: SEA07LA177.
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Accident occurred Friday, June 22, 2007 in Price, UT
Probable Cause Approval Date: 02/28/2008
Aircraft: Mooney M20C, registration: N6713N
Injuries: 2 Fatal.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

While en route to his final destination, the pilot landed at an intermediate stop in order to take a break and refuel his airplane. He was on the ground for about two hours, and then he decided to continue on to his final destination, which was about 60 miles away, without refueling. Prior to his departure, he mentioned to another pilot that he did not want to wait for the fuel attendant to come out to the airport, and that he had more than enough fuel to make the flight. The pilot departed for his final destination after dark, but about one hour later, he returned to the airport where he had made the intermediate stop. While he was on an extended final, about 1.3 miles from the uncontrolled airport, the aircraft hit some unmarked electrical wires, which are strung between unlighted poles. The investigation determined that there was no requirement for the electrical wires to be marked, nor was there a requirement for the power poles to be lighted. The runway he was aligned to land on did not have a Visual Approach Slope Indicator (VASI), whereas the opposite runway did have such a device. It was also determined that the pilot-activated runway lights at the uncontrolled final destination airport were not functioning at the time that the accident aircraft would have arrived there.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

The pilot's failure to maintain clearance from power transmission lines while on a night straight-in visual flight rules approach. Factors include a power transmission line about one and three-tenths mile off the approach end of the runway, and the pilot's decision to operate in the night environment.

Full narrative available

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