33065 Sealion & 33063 pass Battledown Flyover on 25 February 1995 with the Hertfordshire Railtours 1Z90 07:55 Waterloo to Crewe 'Whistle Test' railtour. This tour was particularly noteworthy for 33063's turbocharger expiring in a cloud of smoke between Leominster and Ludlow. From there on 33065 had to haul the train (and a dead loco) on its own. This didn't seem to make any difference, as the train arrived back in London over 20 minutes early!