Ongoing: British Airways BA834 to Dublin escorted by firetrucks after cancelling takeoff at LHR

A British Airways A320neo from London Heathrow to Dublin has been escorted back to the terminal.

British Airways flight BA834 taxied to runway 27L at London Heathrow Airport to takeoff to Dublin (scheduled at 10:30 BST).

But the Airbus A320neo (registration G-TTSE) required assistance, for a reason still unknown, and the takeoff was cancelled.

Several firetrucks escorted the aircraft back to terminal 5 after taxiing during 40 minutes around the airport.

The A320 aircraft is now at remote stand at terminal 5. The airline confirmed a delayed departure.

UPDATE #1
New departure is now scheduled at 13:30 BST.

UPDATE #2
New departure is now scheduled at 14:00 BST.