Late in September 1974, a Grumman Mallard amphibian, white with red trim and registration N2965, left Anchorage bound for Kodiak on what was described as a seabird survey. On board were 27-year-old Leonard Boughton and three other men: Jay Haddock, Robert Bergman, and Robert Johnson. The aircraft was last heard from on September 30, 1974, and was reported overdue when it failed to arrive.

An extensive search and rescue operation covered the route between Anchorage and Kodiak, but no wreckage, debris, or the four occupants was ever found and no distress call was received. With no recovered wreckage, investigators could not determine a probable cause and the Alaska State Troopers keep the investigation open. The families were left without answers and the disappearance remains unsolved.