The body of a second U.S. airman has washed ashore in Libya, the official Libyan news agency Jana reported. It said the body, found near Benghazi, is that of the pilot of a U.S. warplane shot down by Libyan anti-aircraft fire April 15 when U.S. jets attacked Tripoli and Benghazi. Another U.S. airman was found May 6 on a beach west of Tripoli, the agency noted. An Air Force F-111 was lost during the raids, and its two-man crew--Capt. Fernando L. Ribas-Dominicci, 33, and Capt. Paul Lorence, 31--have been listed as killed in action.