A report from the Marine Accident Investigation Branch on the near miss between ro-ro ferry Stena Superfast VII and a Royal Navy submarine in 2018 has been released.
Three safety issues were identified:
safety-critical decisions need to be made based on accurate information
passage planning should identify all potential hazards and effective mitigations
maintaining a good lookout is vital for the safety of all vessels
A safety recommendation (2020/124) has been made to the Royal Navy to undertake an independent review to ensure that the actions taken have been effective in reducing the risk of further collision.