At 01:53 AM 3/29/2003 -0500, Douglas Schnell wrote: >10. UA 747 at IAD on 3/21. I've never seen one there before. Is it doing >ORD-IAD or Atlantic service? Hard to say; UA's electronic timetable doesn't show any scheduled 747 service for IAD. Charter? Goodwill tour? Substitution? It's anybody's guess.