55022 (D9000) "ROYAL SCOTS GREY" approaches Newark, on the 14th May 1979, with the 1L42 12:20 King's Cross - York, the service was terminated at Doncaster due to 55022 operating on one engine only. The loco returned on 1A26 16:27 Doncaster - King's Cross in path of 1A26 15:50 ex York.