NTSB Identification: FTW98FA384.
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Accident occurred Wednesday, September 02, 1998 in WEST JORDAN, UT
Probable Cause Approval Date: 02/16/2001
Aircraft: Cessna 172, registration: N8232B
Injuries: 2 Fatal.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

A witness riding on his dirt motorcycle parallel to the powerlines saw two bright flashes and heard a loud bang from behind. The airplane crashed 50 to 75 feet in front of him. Other witnesses reported observing a flash, hearing a loud noise, and observing the airplane descending vertically towards the ground. The airplane had struck the top static line on a transmission tower, severing the right wing and empennage. The transmission tower is about 100 feet agl. Airport traffic pattern altitude is 800 feet agl. The accident occurred in visual meteorological conditions, during the hours of darkness, about 2 miles west of the airport. The transmission lines run parallel to the runway.

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

The pilot's failure to maintain proper airport traffic pattern altitude. Factors were night lighting conditions and the unseen static line.

Full narrative available

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