This is not quite the commonplace 1990s Network SouthEast scene that it appears to be at first sight. Instead of the usual Class 165/1s, this is in fact a pair of Chiltern Line Class 165/0s at work in the Thames Valley. Prior to the introduction of the route's dedicated 165/1s, a number of Chiltern Line units were borrowed for both crew training and passenger workings. 165029 & 165037 pass South Moreton on 6 May 1992 with a westbound crew training run. 165029 had been in service for several weeks when this photo was taken, but 165037 was just a few days old.