The aircraft you are thinking of may be the DANAIR hs 748 which found Langford Lodge(a disused airfield with a similar runway layout 3 dme )as the atis will now tell you.Having said that I was on duty once when the Scots handed over a bizjet inbound from the states .We weren' t expecting it nor indeed were any handling company.The aircraft was handed off to us somewhat high ...could not find the ILS and after much faffing about with a confirmation of frequency of said ILS found itself landing at Aldergrove.Only when safely on the ground did the crew advise they wanted to go to EDINBURGH!!!! A flaw in the flight plan caused everyone bar the crew to expect them to land in Ireland.In the end they taxiied round and departed...but as usual a combination of factors caused a problem .