Robert John Lohman was 53 when he and a companion, Robert Herman, took off from Yakutat in a Civil Air Patrol Cessna 180 with floats on September 2, 1981, bound for Sitka. Weather along the route was poor that day. The aircraft never arrived, and despite an extensive search by the Alaska State Troopers and other agencies, no wreckage, ELT signal, or sign of the two men was found.

The flight path between Yakutat and Sitka crosses dense forest, mountains and open water, terrain that complicated search efforts and has made many Alaskan aviation disappearances difficult to resolve. With no wreckage or other evidence, the circumstances of the plane’s fate remain unknown and the case is unresolved.

Did anyone in Yakutat, Sitka or along that route have observations from September 2, 1981, that could help locate the aircraft or explain what happened?