The chopper was a corporate aircraft flying for Food City and went down Friday in South Holston Lake after dropping off a passenger at an nearby home.
The state police said in a written statement that divers failed to locate the pilot in the wreckage and would deploy a side-scan sonar Saturday to help in the search.
Tri-Cities.com in Bristol, Va., said the helicopter had been ferrying passengers to and from the Bristol Motor Speedway.
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