July 29, 1957; Cleveland, Ohio.  10:31 p.m.  Witnesses:  Capital
       Airlines Capt. X.X. Xxxxxxx, First Officer X.X. Xxxxxxx. One
       large, round, yellow-white object dimmed once, crossed the bow of
       the airliner, which then gave chase but was unable to catch it.
       Sighting last 8 minutes.