Sick pilot grounds flight?

CHENNAI: London-bound passengers on a British Airways flight, scheduled to depart at 5 am on Tuesday, were shocked when they were told that their flight was cancelled - after waiting for three hours on the tarmac. Well placed sources said the flight’s pilot had intimated the airline that he had been taken ill and could not make it. Airline staff said the flight was scheduled for 2.30 am on Wednesday, but refused to comment on the reason for the delay.