So I have a picture of Terminal 1 taken at night, and I am trying to figure out when it was taken. Here's what I know.
1) There are 2 LH planes parked at Terminal 1. One is a 747 of some variety. The other is possibly another 747, but I can't be sure.
2) The UA planes obviously visible are 727s, DC-10s, 737s, 757s, and 767s.
3) All but 2 planes (a 727 and a 757) are in the 90s grey color scheme. These 2 are in 80s white (orange/blue cheatlines)
So... when was the picture taken? Thanks for your help.