40135 worked its last train in January 1985 and was initially withdrawn the same month due to it being surplus to requirements after over 24 years of active service. In May that year it was reinstated to departmental traffic (and renumbered 97406 in the process) for use on engineering trains for the remodelling project at Crewe station.
40135 was finally withdrawn from BR service in December 1986. The locomotive was due to be scrapped at Swindon Works but due to the Christmas period it remained at Bescot. With several groups interested in preserving the locomotive BR decided to store the locomotive at Tyseley. It was subsequently bought by the Class 40 Preservation Society
in May 1988.
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