"Turbulent" left Devonport in February 2011 for a 268-day deployment East of Suez, which was due to be her final before decommissioning. The deployment saw her operating in the Gulf of Sidra relieving HMS "Triumph" as part of the British contribution to the Libya intervention. She was then herself relieved by "Triumph", before heading through the Suez Canal in June to take up patrol in the Indian Ocean. The boat called into the port of Fujairah, where she rendezvoused with the support ship RFA "Diligence". "Turbulent" returned to Devonport on 14 December 2011, having spent 190 days of her 267-day deployment underwater and travelling more than 38,000 miles A documentary called "Royal Navy Submarine Mission" on Channel 5 featured "Turbulent" during this 2011 deployment.