In message , at 10:20:08 on
Mon, 29 May 2017, Scott remarked:

Are they not claiming it's a power supply issue? Is the hardware
offshore as well?

according to El Reg

"BA has a very large IT infrastructure; it has over 500 data cabinets spread
across six halls in two different sites near its Heathrow Waterside HQ"

The obvious question then is whether any other part of the Heathrow
area suffered power supply problems.

The power feed into the building is only the beginning of the sequence
of potential points-of-failure.
--
Roland Perry