In April I saw quite a lot of fire engines lining up along the runway. When this Air France A321 landed, the fire engines followed it along the runway and then off the runway. A person next to me had a radio receiver and that's what I picked up from that person about this incident: While approaching LHR the left engine cought fire, so the A321 was forced to abort the approach and circle while deploying the fire extinguisher of the engine. Subsequently the engine had to be shut down and the A321 landed with one engine out.
The fire engines followed the Airbus to the gate where the passengers disembarked, while the fire brigade stood around the aircraft for quite a while. Surprisingly, after about 1 or 1.5 hours the aircraft got loaded with luggage again. I couldn't watch the aircraft leaving again because I had to go, but could it be that the Airbus flew back to France again after that incident?
Or is the story of the engine on fire not quite correct?
Maybe anybody knows more about this incident on April 21.

That's the photo I took when the aircraft taxied to its gate:

View Large View Medium

Photo © Chris Waser