ITHACA, Ohio -- Investigators continue to search for a man employed by the Federal Aviation Administration at the Dayton International Airport.

Phillip Troutwine was last seen leaving work on Wednesday. Troutwine’s wife called authorities Friday after he did not return to his home in Ithaca, just south of Arcanum.

Investigators said there has been no activity on Troutwine's cellphone or credit cards, which causes them not to rule the suspicion of foul play.

Troutwine was last seen driving a 1997 Pontiac Bonneville with license plate number BE32PX. The car is described as plum in color and has four doors with a large CB antenna.

If you have seen Troutwine or his car, contact the Darke County Sheriff's Office at (937) 548-2020.