The 07:48 Reading to Paddington 'all stations' service pulls away from West Drayton station on 6 November 1986. L425 has had its DMBS vehicle (51363) replaced by Class 121 55029 (L129). Both being Pressed Steels products, they are effectively identical apart from the number of vehicles in a set. 51405 & 59515 lead the interloper past the timber yard, as they head eastwards.