Looks like it is happening in GW1. Air Taiwan has 2 DC-6B in operation and 2 on order, also Wontok has 3 DC-6.
Edit: I assume this is related. When I joined the game, it was January 4th at 2358. If a player leased 2 planes before the day changed, it is possible they were able to lease their second two planes on the real day one, which would have then been their day two.