The BBC news article first reports the aircraft took out the ILS antennae (plural) it then goes on to report a Mr. Kehoe as saying the aircraft took out the ILS glide path antenna. It also reports him saying the aircraft ended-up to the right of the southern-facing runway. Mr. Kehoe's reported comments would at least be consistent. There is no mention anywhere of the aircraft specifically hitting the ILS localiser antenna having just made it to the airfield perimeter.
As is common in accidents, there are more questions than answers so, as said before, it is pretty useless at this time attempting to speculate on cause based on snippets of information from arbitrary news articles.
AVF
Last edited by AV Flyer; 20th Nov 2010 at 00:07.