The FNA Nuclear Flask flat, No.550059, en route from Hinkley Point to Sellafield.
A stop is made in Marston Magna Exchange Sidings for a crew change. Class 31 No.31 229 is in charge.
aggregates [Chinley Cross Quarries] and fuel oil [Berry Wiggins] trains
also inhabit the Sidings, all changing crews for their onward journeys.