In the early hours of Friday 28 March 2025, an LNER Azuma train made history by completing its first-ever test run to London St Pancras.
The trial run, conducted using 9-car bi-mode unit 800108, forms part of LNER’s efforts to explore alternative routes during major engineering works on the East Coast Main Line (ECML). With parts of the ECML periodically closed for upgrades, the test represents a significant step toward providing more flexible travel options for passengers.
Starting from Leeds, the train diverted off the ECML at Doncaster, joined the Midland Main Line near Chesterfield, and continued to London St Pancras. During the trip, LNER engineers and operations staff carried out safety and validation checks before the train returned north.
Mark Smith, Development Engineer at LNER, said:
“While planned engineering work is vital in delivering infrastructure upgrades and keeping the rail network safe, it can be disruptive to customer journeys. With this test, LNER is looking at how it can keep its customers on the move and minimise disruption to journeys when engineering work is being carried out.”
He added:
“There is still work to be done, but this is an encouraging development for future service options.”
Although more steps are needed before customers can travel to and from St Pancras on LNER services, the successful overnight trial shows promise. It marks an important milestone in the operator’s efforts to improve journey resilience and maintain high service standards during infrastructure upgrades.
