Two of Metro Warsaw’s Inspiro fleet have returned to service following a train fire last year.
The first five of a fleet of Inspiro metro trains being built for the Polish capital were taken out of operation in November 2013 after a fire broke out beneath one of the trains at Politechnika station, filling its carriages with smoke.
Four passengers were taken to hospital as a precautionary measure.
Operator Warsaw Metro appointed an accident investigation committee following the incident, which included experts from the Warsaw University of Technology, to determine the cause of the fire.
Following the publication of a report by the committee, Siemens has now updated the train’s collector fixing mechanism after it found that one of the vehicle’s current collector shoes had come loose, causing it to arc and short circuit.
The first two trains returned to service on March 22.
Siemens signed a contract with Warsaw Metro in February 2011 and is currently building a further 29 six-car trains on top of the six already delivered.
The first trains of the €272 million order entered service in October 2013 on Line 1 and were celebrated as first Inspiro model train to enter service anywhere in the world.