British Airways pilots make emergency landing after feeling 'light-headed'

London to Glasgow flight returns to Heathrow after both pilots became 'unwell' 20 minutes after takeoff and needed oxygenA British Airways jet made an emergency landing at Heathrow after both pilots reported feeling "light-headed" and had to be fitted with oxygen masks before the plane touched down.The Air Accident Investigation Branch has been investigating the incident which involved a flight a few days before Christmas from London to Glasgow.A person claiming to have been on board the flight posted their account of the episode on a website used by pilots to discuss aviation issues, claiming that "a very abrupt and panicked message" requesting a senior flight attendant to the flightdeck had come over the public address system 20 minutes after takeoff from Heathrow.The individual, who said the incident took place on 20 December, added: "At this point there were defined worried faces across all off [sic] attendants, next thing was an o2 cylinder and mask taken forward and we were headi