The ferry destined to serve the Isle of Arran will be delayed even further after a “blunder” with internal cabling was discovered.

Both Glen Sannox (Hull 801) and Hull 802, being built at the nationalised Ferguson Marine shipyard in Port Glasgow, rely on a “complex network” of more than 9800 cables.

But in the week before Christmas 2021, engineers unwound coils that had been installed in late 2018/early 2019 and found some of them were too short to reach the necessary equipment.

After three weeks of investigation, Ferguson engineers believe that at least 400 cables will need to be addressed, with the worst case requiring 939 cables to be replaced.

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