Metropolitan Line, Harrow On The Hill

MQT on 2019-06-20
Session date: 
June 20, 2019
Question By: 
Navin Shah
Labour Group
Asked Of: 
The Mayor


I travelled from Harrow On the Hill station on Southbound Met Line train on Wednesday 14th May around 8am. The train was packed at this peak time but to our disbelief three sets of doors were defective and did not open. The train was allowed to run till we got to Wembley Park station – when they decided to take it out of service. This posed a serious safety and means of escape issue causing chaos and congestion. No explanation was given to the commuters for this occurrence. Can you please explain how common this occurrence is and why the faulty train was not terminated at Harrow On The Hill and allowed to run for a further 3 three stations. Was the problem associated with age of the stock and can you assure that this is not a common problem with Met Line and rest of the other underground trains?


Metropolitan Line, Harrow On The Hill

Metropolitan Line, Harrow On The Hill

Answered By: 
The Mayor

I apologise for the disruption to your journey. The incident took place because of a defect to the door system. The fault was fixed and the train re-entered service at 08:58.

The train was not taken out of service immediately because a train technician was on board attempting to rectify the fault while it travelled to Wembley Park. During this time, Transport for London (TfL) was confident that customers were able to walk safely between cars and to leave and board the train. Running the train to Wembley Park provided customers with the option to change to the Jubilee line to continue their journey. At Wembley Park there were also more members of staff available to assist customers.

The walk-through S-stock trains have been in service since 2010 and are used on the Metropolitan, District, Circle and Hammersmith & City lines. The defect is not common. From 1 April 2018 to 25 May 2019, there have been 12 incidents recorded on the Metropolitan line where the doors failed to open at stations. On average this equates to a low failure rate of one incident every 35 days. This is similar to rates experienced across the rest of the network.