GRAND RAPIDS, Mich. (WOOD) — The 83-year-old pilot who vanished with his plane during a flight on Sunday has been found dead.

Richard Martin’s body was found around 4 p.m. Thursday in a crash site in some woods off of M-51 near Elm Street, about 2 miles north of Dowagiac.

Crews had been looking for Martin and the small, home-built aircraft all week. He left Dowagiac Sunday morning on a flight that was supposed to last about an hour, but never came back.

Martin did not have a cellphone with him for searchers to ping. The Michigan Wing Civil Air Patrol put crews in the air and others searched the ground.

A Michigan State Police helicopter spotted the plane. Ground crews then found it and Martin’s body.

Dowagiac police said the investigation into the crash was ongoing.