Incredible - surely they knew the way though as the aircraft appears to be CGN based which is just down the road from DUS. Seriously though, looks like the same airframe completed an LCY/EDI rotation yesterday (intentionally), but very interested to learn how this could have happened - what paperwork were they given? Callsign used this morning appears to have been the usual one for the 3271 LCY/DUS so would've though ATC might have picked up on this regardless of the FPL? I always thought BA were highly selective with ACMI contracts and I'm sure CFE are as well?