The airline played a prominent role in the Vietnam War during the late 1960s , using Douglas DC-8-63 jets to connect McChord Air Force Base , Washington with Cam Ranh Bay , Vietnam . In 1968 , one of these flights operating as Seaboard World Airlines Flight 253A was forced to land in the Soviet Union with 214 American troops on board . On 30 April 1969 , a Seaboard World Airlines DC-8 with 219 passengers and 13 crewmembers landed by mistake at Marble Mountain Air Facility , when it had actually been cleared to land at the nearby Da Nang Air Base . After fuel and passengers were offloaded , the plane was towed to the north overrun and departed five hours after the landing incident
Seaboard World Airlines Flight 253A
Seaboard World Airlines Flight 253A
Seaboard World Airlines