Seven workers were admitted to hospital and later discharged. The extent of damage to submarines is not known.
Safety latest news
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201 days: HMS Vengeance completes another long patrol
This is thought to be the second longest patrol on record
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Vanguard’s failed Trident launch: what do we know?
This is the second consecutive failure, following one in 2016.
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NIS briefing on Devonport Dockyard
An overview of the dockyard where the UK’s nuclear submarines are maintained.
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Devonport: A Nuclear Information Service Briefing
An overview of the Devonport Royal Dockyard and its role in servicing the UK’s submarine fleet
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Faulty depth gauge causes unplanned dive on Vanguard submarine
A disaster was averted when engineering staff alerted the control room.
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Extended Patrols: Vanguard problems are here to stay.
A series of very long patrols since 2020 suggest ongoing reliability problems within the fleet.
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Aldermaston and Devonport to remain in ‘special measures’
Both sites are struggling with longstanding issues, according to the Chief Nuclear Inspector
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Downwind – The legacy of nuclear colonialism
Join us in Reading on 10 November at 7pm for a discussion on the impacts on communities downwind of nuclear bomb testing.
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HMS Vanguard leaves Devonport after 7 years of maintenance
The cost of the work has been estimated at over £500m
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Aldermaston worker killed in construction accident
The deceased was a 57-year-old employee of Balfour Beatty
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‘Trouble Ahead’ – A video update
This video updates on our 2019 report which highlighted rising costs and programmatic risks in the UK nuclear weapons programme.