Analysis of information sources in references of the Wikipedia article "List of accidents and incidents involving military aircraft (1980–1989)" in English language version.
MANILA, Philippines -- A U.S. marine F-4 jet mysteriously disappeared while on routine training in the South China Sea and a navy spokesman said today the two crewmen aboard were 'presumed lost at sea.' ... The missing F-4 was piloted by Maj. James E. Cripps, 40, of Laurel Bay, S.C., attached to Marine Corps fighter Squadron VMFA 312 based at Marine Corps Air Station, Beaufort, S.C.. The second crewmember was radar intercept officer Lt. Col. Robert J. Johnson Jr., 41, Burke, Va. ... Honda said air and sea units of the 7th fleet had been searching the last known location of the aircraft but as of 7 p.m. today the efforts had been unsuccessful.
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