Carrentalchoice Crew at BA have said they will hold a four-day strike this month, compounding the problems for the beleaguered airline which stranded 75,000 passengers at the weekend after an IT meltdown. Some travellers are still waiting to be reunited with their luggage. 
What went wrong with the BA system?
British Airways or the technical engineers don’t seem have a firm answer yet.
British Airways has apologised and blamed a “power surge” affecting IT equipment.