 Eventually, it was decided not to continue with the 12LVA24 experiment; the engines were removed and the locomotives were fitted with the standard 12LDA28 engines.D1702 was the first to be so treated at Crewe Works, using parts from D1908 which had been withdrawn after a serious accident; it emerged back into service in December 1969.All five locomotives had been so converted by early 1971 and then became standard Class 47s.