Flight BA762 flying from London Heathrow to Oslo had to return and make an emergency on the Northern Runway (27R) due to a "technical fault".
Video has emerged of the aircraft whilst flying back to Heathrow with a trail of smoke coming from the starboard side engine, believed to have been a small fire.
http://www.flyvids.com/view/1742/british-airways-a319-flying-with-missing-fan-cowl/