FAA spokesman Roland Herwig says the helicopter, owned by Ozark Mountain Helicopters LLC, crashed just before 9:30 a.m. Baxter County sheriff's deputies say the helicopter came down on the far side of Norfork Dam in the Overlook Estates area.

Baxter County Sheriff's Capt. Jeff Lewis has identified the dead as 57-year-old pilot James Dean Evertsen of West Plains, Missouri, and 51-year-old Randall J. Arthur, of Marshfield, Missouri, an employee of Sho-Me Power Electric Cooperative. Lewis says both of the men's bodies likely will be sent to the state Crime Laboratory in Little Rock for autopsies.

Evertsen was owner of Ozark Mountain Helicopters, a tour company based out of Branson, Missouri.

Son Casey Evertsen, a manager at Ozark Mountain Helicopters, says Sho-Me Power Electric Cooperative of Marshfield, Missouri, hired the helicopter to inspect power lines.

A woman who answered the phone at Sho-Me Power said no one there could discuss the crash.

Herwig says the National Transportation Safety Board is expected to investigate the crash.

P.J. Spaul, a spokesman for the U.S. Army Corps of Engineers, says the helicopter clipped transmission lines running from the dam either before or as it crashed. Spaul says the crash cut the lines and sparked two power surges in generators at the Bull Shoals and Norfork power plants.

Spaul says workers are still inspecting their generators.

Salesville is about 10 miles southwest of Mountain Home. (Copyright 2008 by The Associated Press. All Rights Reserved.)