The double-decker bus that overturned in east Belfast yesterday was last inspected in July, with no defects detected.
A Translink spokesperson told the Belfast Telegraph last night the eight-year-old vehicle — A Volvo B7 Alexander — was checked thoroughly on July 27, with the company satisfied there were no faults.
It passed a PSV test the previous month.
An investigation into the cause of the crash in which more than 30 people were fortunate to escape with just minor injuries was launched yesterday with the bus being taken away to be examined.
Translink is working with police to establish how the bus ended up on its side.
Back in 2001, Translink announced the return of the iconic double-decker to the streets of Belfast, emphasising the safety of the buses.
Translink’s managing director Ted Hesketh said: “The return of the double-decker vehicle represents a major step in the development of a modern and safe public transport system and is a sign of our confidence in future passenger volumes in Belfast.
“Passengers will find the new double-decker vehicles bear very little resemblance to the old buses, last purchased for Belfast in 1975.
“All vehicles are fitted out to very high standards of passenger comfort and convenience”.
It is not known whether seatbelts were fitted to all the seats on the vehicle involved in yesterday’s incident but the safety measures in place contributed to ensuring there were no serious injuries.
Emergency exits to the rear of the vehicle were used by |passengers to escape the |stricken bus and it is believed many of those on the top deck climbed out through the front after fire and rescue personnel removed the front windscreen.