Hunterdon County Prosecutor Anthony Kearns, III said Joseph Borin, 71, of the Whitehouse Station section of Readington Township, N.J., perished in the crash.
Kearns said investigators believe Borin was trying to reach Alexandria Airport in Pittstown, N.J. when his plane went down in dense fog and rain.
It was 5:00 p.m. Wednesday when rescue units in Bucks and Hunterdon counties first received calls of a downed plane.
Bucks County rescue crews searched the area of River Road along the Delaware River near Upper Black Eddy, but cut back their search when no wreckage was found.
It was not until shortly before 10:00 p.m. Wednesday, the prosecutor said, when search teams in Holland Township found the wreckage of the single engine Citabria aircraft in a remote area off Route 627.
A body found a short time later was confirmed to be Borin. He was the only person on board.
The FAA and Hunterdon County investigators are working to determine what led to the crash.