Arran ferry which arrived seven years late to be tied up in Stornoway
A£200 million
CalMac ferry that has been in service for fewer than 18 months is to be tied up in port as a standby vessel in case anything goes wrong with the rest of the fleet.
The long-awaited Glen Sannox started serving Arran - one of CalMac’s busiest routes - in January last year after being completed seven years late and some four times over budget.
However, the operator’s second largest vessel will now be put on “operational standby” in Stornoway.
It will leave Arran’s main routes served by a 32-year-old ferry and a chartered catamaran whose only catering is from vending machines.
Caledonian Isles sails between Ardrossan and Brodick while Alfred operates to Arran’s main port from Troon.
The impending move comes three months after Arran islanders expressed dismay at the prospect of their new ferry being redeployed to the Western Isles.
CalMac said Glen Sannox was chosen for the role because it could operate in more ports than many of its other ferries.
Its spokesperson said: “She will be berthed in Stornoway on standby and hasn't been scheduled to operate on any route yet.”
The firm denied the decision was because there was a high likelihood of another of its ageing large ferries suffering problems following a series of breakdowns around Easter.
However, chief executive Duncan Mackison told The Scotsman last month that CalMac was “on the edge” of further major disruption until three new ferries were delivered from Turkey by next year.
The CalMac spokesperson said: “Our network was affected by unprecedented disruption for several weeks earlier this year, with almost a third of the fleet unavailable at one point.
“We are grateful to communities for their patience and understanding during that challenging period.
“Glen Sannox, which was a much-needed support during the recent disruption by operating the Castlebay-Oban and the Stornoway-Ullapool routes, is doing berthing trials on the Little Minch this week and will be on-hand to provide further support if required.
“The fleet has now returned to normal operations and thanks to the retention of [catamaran] Alfred, we now have a resilience vessel in the major vessel fleet until October.
“Throughout the summer, this should allow us to manage any unplanned technical issues more readily and increase confidence levels in those who travel on our services.
“The resilience vessel will likely change over the summer but the plans for this haven't been finalised yet.”
The spokesperson said Alfred was limited as to where it could operate, while Ullapool-Stornoway ferry Loch Seaforth could not operate anywhere else and Barra ferry Isle of Lewis could only also serve the Stornoway route.
Glen Sannox suffered a series of problems after being completed by the Ferguson Marine shipyard in Port Glasgow which will cost more than £3m to repair.
They include a replacement propeller after vibration caused a crack in its hull.
Sister vessel Glen Rosa, which was also earmarked for the Troon to Brodick route, is due to be completed by Ferguson Marine by the end of the year.