Various British media, including the BBC, learned on the 20th that the BritishRoyalA Navy Vanguard-class nuclear-powered ship carrying Trident missilesballistic missileMore than a year ago the submarine suffered a “worrying” malfunction as it was preparing to depart for patrol and submersibles.
The Royal Navy currently has four Pioneer-class submarines in service, but the name of the submarine that was involved in the accident has not been made public. A British defense source said, “There is a problem and it is worrying”. The Royal Navy launched an investigation into the incident but declined to provide further details.
Another defense source confirmed that the Vanguard-class submarine was submerged at the time of the incident and the ship’s main depth gauge had failed. However, the auxiliary depth gauge is still operational.
According to a report by The Sun, which first revealed details of the incident, the depth dial stopped working, causing the commanding officer to believe the submarine was level when it submerged. Although the ship was still within safe dive depth limits, it was entering the “danger zone”. The aft engineer observed the second depth gauge and immediately alerted the crew.
According to reports, the Vanguard-class submarine was diving to “crushing depth” before the alert was issued. A source told The Sun that it was not the engineers’ job to control the depth of the submarine, “but they saw how deep it went and realized something was wrong”. A Royal Navy source said the near-miss showed the safety system was working. “If one system fails, you can rely on the other system.”
U.K.Department of DefenseIt never commented on the activities of British submarines. The Royal Navy said the safety of personnel is always the top priority.