The Munich airport is down, and every minute there is an announcement that the whole IT system is down.<p>EDIT: So the total downtime was ~1h, from 10:45 to 11:45. No idea what the cause was, but I heard the crew saying Amadeus was down.
Similar thing happened at a Heathrow terminal, the day after hundreds of British Airways workers were made redundant / outsourced. Possibly a coincidence!