The Office of Rail and Road issued the notice on the 6th May 2026 and improvements need to be completed by the 19th June 2026 by Blackpool Transport.
The regulator had pointed out "shortcomings" in the tram operator's "documentation".
The notice by ORR inspector Lindsey Pyke to Blackpool Transport said: "You have failed to take so far as is reasonably practicable appropriate measures to control and mitigate known risks associated with bogie degradation which could give rise to derailment or collision."
A spokesman for Blackpool Transport commented: “Working closely with the ORR, we have already made improvements to our maintenance reporting processes, primarily, the way risks and associated mitigation measures are documented.
“While the Improvement Notice identified shortcomings in documentation associated with some specific repairs, we would like to assure customers that safety has always been our top priority, with appropriate measures put into place to address any potential risks.
“We will also continue to work with the ORR, suppliers, industry partners, and other key stakeholders to ensure trams remain one of the safest forms of public transport.”
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