The company has put the blame on the upgrade after persistent failures last week in its departure control and booking systems which are known as Babs.
BA is working with its IT services partner Amadeus to resolve the problems which have arisen at a link between customer-facing systems and BA’s mainframe. Amadeus took ownership of Babs last year, and is due to migrate the systems to its own German-based platform in the next couple of months.
Staff are having to handle Babs processes by hand, which is leading to delays on some flights.
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