Kevin Ryan , a technical support employee at Hartzell , said , `` It 's not the first time '' Pilot Stewart Dunbar disappeared off Florida coast in 1996 . The plane was carrying a crew of four and two passengers when it vanished from radar over the Gulf of Mexico on July 31, 1996. The recovered evidence suggests the sunken plane was not Dunbar 's .
Pilot Stewart Dunbar disappeared off Florida coast in 1996 . The plane was carrying a crew of four and two passengers when it vanished from radar over the Gulf of Mexico on July 31, 1996. The recovered evidence suggests the sunken plane was not Dunbar 's .