On December 26 , 1968 Pan Am Flight 799 , crashed after takeoff from Joint Base Elmendorf – Richardson in Alaska . The Boeing 707 ( N799PA , '' Clipper Racer '' ) failed to takeoff due to the crews failure to extend the flaps On September 6 , 1970 , Pan Am Flight 93 , a Boeing 747 – 121 ( N752PA , '' Clipper Fortune '' ) en route from Amsterdam to New York , was Hijacked as part of the Dawson 's Field hijackings . The flight diverted to Beirut International Airport to take on board seven other gang members for the next leg to Cairo International Airport , where the hijackers ordered the aircraft evacuated and destroyed it with explosives . On July 2 , 1972 , Pan Am Flight 841 , a commercial passenger flight of a Boeing 747 from San Francisco , California to Saigon , South Vietnam , was hijacked over the South China Sea . The lone hijacker was overpowered and killed after arrival at Tan Son Nhut Air Base in Saigon , and no other passengers were killed or seriously injured
Dawson 's Field hijackings
Dawson's Field hijackings
Pan American World Airways