Suitcaseman,
Fact, did happen, just after 7am yesterday, heard them on radar using registration as callsign (PYM-Bae 146), shortly after take off declared an emergency saying number 3 engine on fire, must have being training or something, only 3 crew on board, (Ha ha! If it was training Airlink have certainly raised the realism factor), radar vectored back to to 03L for landing, saw them taxing towards Mike Apron just after we landed with fire truck in tow.
Glad things turned out OK, Airlink can ill afford more negative publicity, well done to the crew, handled it well by the sounds of it.