Crews of USAF KC-97 aerial tanker planes and a C-54 transport saw one to two white or amber objects or lights make passes at the aircraft on collision courses as they practiced GCA landings. At 7:15 p.m, KC-97 pilots Capt. G. E. Brown, First Lieutenant L B. Gordon and First Lieutenant J. P. Glover, 301st Air Refueling Squadron, 301st Bomb Wing, while flying KC-97 to practice landing on 180° heading at 1,500 feet about five to eight miles southwest of Nouasseur base saw two white lights to the right at about the same altitude, with one light slightly lower than the other, appearing to be two aircraft in formation on collision course or "making a pass" forcing an evasive turn away by the KC-97. Later (at 8:20? 9:20?), after landing and takeoff they saw the same or similar two white lights on the same course from the south at 180° on a collision course and they made an evasive 360° turn. At 7:38 p.m. another KC-97 flown by pilots Capt. Robert R. Zadnick, Lieutenant Paul R. Fisher and Lieutenant George A. Kerr, also 301st ARS, 301st BW, on GCA landing at 180° heading at 1,500 feet about five miles southwest of Nouasseur base saw a light at about the same altitude and to the left of course appearing to be headed west on a cross path or collision course, as it crossed it was seen to be two lights as if two jets in formation, no aircraft running lights. One light passed over and one under the KC-97. At 9:55 p.m, C-54 from Lagos, Nigeria, based at Kelly AFB, Texas, senior pilot Capt. William M. Pond, copilot Lieutenant I. W. Gilchrist and navigator Capt. James F. Pullen while flying at 2,000 feet on 170° heading on GCA landing at Nouasseur base saw white or amber light like an aircraft landing light at about the same altitude approaching on a collision course heading west two to three miles away, then turned onto a direct head-on course, passing within two miles, then suddenly disappeared like turning off a light for 10-15 seconds, then reappeared hovering, descended to ground then rose, and disappeared behind the C-54 after completing its turn onto final landing approach. No radar or other visual contact made.

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