The BBC, quoting the Maritime and Coastguard Agency (MCA), said the Pride of Kent was one of eight ships to need inspection before re-entering service.
The MCA was said to be inspecting the ship to make sure it was safe to sail without passengers or cargo.
A spokesperson for the agency told the BBC: "Our surveyors are in the process of detaining the Pride of Kent. We are awaiting confirmation of all the detainable items."
