Date lodged: 12 December 2017
To ask the Scottish Government what the cause was of the train fault that resulted in disruption to services at Glasgow Central station on the morning of 11 December 2017, and which unit was affected.
Answered by: Humza Yousaf 3 January 2018
Whilst approaching Glasgow Central station at Bridge Street junction just before 07:00 a four car class 380 electric train  which was not in passenger service experienced a main power supply issue reported on an internal advisory screen. The driver interrogated the fault by following the agreed procedures but was unable to rectify the problem and despite also seeking external technical advice the train was declared a failure at 07:20. A rescue train was successfully attached and both of them proceeded to Glasgow Central arriving at 07:50.
Despite the train being moved within an hour due to the critical area of where the breakdown occurred and the interaction between the various lines in and out of the station the disruption which followed was significant with a backlog of trains trying to access and depart the High Level station from various routes. Unfortunately this impact lasted until lunchtime although a robust contingency plan was put in place to deal with the impact of the train breakdown and communication to passengers was sent through the normal media channels.
ASR held an full incident analysis on 19 December and are fully engaged with the train manufacturer Siemens to understand the cause of the failure and develop mitigating measures to try and ensure it does not re-occur.