I saw on flightaware that UAL846 (IAD-SFO) used a 747-400 on today's flight. I looked on Ual2go flight status and there was no type of aircraft listed. I look on flightstats and it showed a 777. UALCargo.com didn't list an aircraft type for today but a B777 for tomorrow's. The only reason I think it could be a 747 is because it appears to arrive in G101 in the international terminal. I checked SFO's site and the next dep. out of 101 is to Frankfurt. The SFO-FRA is almost always a 747 if IIRC. Can someone confirm if this was in fact a 747 or a 777? Thanks