Happened on 3rd September 2014 at 21:10 BST, according to the BBC:
BBC News - Jet2 plane makes emergency landing at East Midlands Airport
Emergency landing was made as there was smoke in the passenger cabin.
Interesting fact is that the cockpit to cabin intercom failed, according to witnesses. As a result, the evacuation sounded pretty chaotic, if the BBC is to be believed. It did not say how well the cabin crew handled the emergency, but I suspect people should not have been standing out on the wings.......