It was in the evening, about 20:30 (8:30 PM) and the ship had just completed an eighteen hour "Flight Ops". I had just taken a message off one of the broadcasts and turned around to file it on a clip board. When I turned back to the teletypes the primaries were typing garbage. I looked down to the alternates which were doing the same. I walked a few feet to the intercom between us and the Facilities Control. I called them