I was originally on this flight until of course it went "tech". Credit to the Captain for coming out to the holding area several times to keep us abreast of what was going on and finally apologising for the cancellation of the flight until the next day. I must also commend the BA team in London who contacted many of the status holders on this flight and got us on the LHR flight which departed a few hours later. Nice CS on the A350 too which was a bonus!