British Airways system outage causes delays for holidaymakers

IT outage leaves travellers unable to check in online, with some passengers stranded on a plane on the tarmac at HeathrowBritish Airways is experiencing a global system outage, the airline has said, as holidaymakers face significant delays at the start of the bank holiday weekend.Related: Please bring back my old British Airways | Victoria Coren Mitchell Hey @British_Airways, couldn't log in to the app with my boarding pass on because systems were down and I missed my flight. What can I do?Briti