On 8 November 2012, the crew of a Saab 340 advised destination ATC at Newcastle in daylight hours that they were 'visual' and were so cleared. The aircraft was then observed to turn towards the lights of an industrial complex 6nm from the airport and descend and ATC intervened to provide guidance to final approach. Investigation found that the experienced Captain was guiding the First Officer, who had gained his professional licence 10 months earlier, towards what he had mistaken for the runway. Descent, perceived by the Captain as on 'finals', continued to 680 feet agl before a climb commenced.