BA294 ORD-LHR planned into MAN at 1000. Operated by G-CIVS B744.
Flight will terminate at MAN, so, G-STBG B77W will operate the BA1398 to collect the ORD passengers. G-STBG due 1115.
Conspiracy theory #1
Testing Manchester's ability to handle 2 large BA planes at the same time.
