Shipyard crew has been monitoring situation on board
A report on the vibrations felt onboard the Manxman is expected within the next two weeks.
A shipyard team from the Hyundai Mipo Dockyard recently completed a vibration analysis on the vessel after passengers raised the issue with the Steam Packet Company.
The ferry operator confirmed earlier this month that vibration monitoring equipment had been placed on the Manxman as part of an ongoing programme of quality assurance.
Treasury Minister Alex Allinson has announced a report on the vibrations is due by 13 February.
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