Quite funny this one......we were informed by West Drayton about the 340 returning with the flaps stuck at position 2. We put out the full emergency call, and then ten minutes later the BAA Heathrow switchboard phoned us back to say they'd just been told (by whom, I don't know) that it was now going to land with no landing gear, and that the central bus station was being evacuated.
Very bizarre!