With a couple of former RNAS Culham aircraft hangars in the background, 58037 & 58024 head north past Culham on 10 July 1991 with MGR empties from Didcot Power Station. The timing does not match up with anything in the working timetable, which presumably confirms that 58024 was a failure, and is being rescued by 58037. It may possibly be the 6M06 18:50 Didcot Power Station to Daw Mill Colliery. Coincidentally, I saw this same pair on a railtour nine years later.