The failure of DPS-owned Class 55 D9009 Alycidon on the southbound ‘Auld Reekie’ rail tour from Edinburgh, which saw the locomotive failed at Berwick, has turned out to be more serious than originally thought. Initially, two traction motors were isolated at Dunbar following a loud ‘bang’ but difficulty in obtaining power saw the driver call it a day at Berwick.
Subsequent investigations have revealed a large power surge has damaged all 6 traction motors and one of the two main generators has also be affected. The damage is not consistent with what could be termed a ‘normal’ flashover where current arcs from one brush box too the next. There is a burn mark on the roof of D9009 and also on the inside of the engine room roof.
It is highly probable that the six traction motors will need to be professionally repaired, necessitating lifting the locomotive to gain access to the bogies. It is not known if the affected main generator will require similar attention Should this be necessary, the complete power unit will need lifting out and the generator removed.
The DPS has regrettably had to inform Pathfinder Tours that the locomotive will not be repaired in time to run ‘The Harrogate & Humber Deltic Reprise’ on May 11 but hopes this tour can be scheduled at a later date.
The DPS wishes to thank DB Cargo, the operator of the ‘Auld Reekie’ tour, for its exceptional co-operation and assistance with this incident. Investigations continue to establish the cause of the damage.