Federal Express Flight 705

On April 7, 1994, Federal Express Flight 705, a McDonnell Douglas DC-10-30 cargo jet carrying electronics equipment across the United States from Memphis, Tennessee, to San Jose, California, was the subject of a hijack attempt by Auburn R. Calloway, a Federal Express employee facing possible dismissal for falsifying his flight hours. Calloway boarded the scheduled flight as a deadhead passenger carrying a guitar case concealing several hammers and a speargun.

Source: Wikipedia — Federal Express Flight 705 (CC BY-SA 4.0)