FSU Case Study

FSU Spooling Gear Servicing

Reinstatement of Hawser winch bogie


A scroll gear bogie on a North Sea’s FSU Hawser winch was not running true due to corrosion. In conjunction with the required remedial works, the client was also looking for a survey of the coating and corrosion condition for a fabric maintenance campaign, as well as additional surveys for validating further maintenance requirements with corresponding method statements.

MDL Solution

An MDL Senior Project Engineer and Mechanical Technician travelled to the North Sea asset to perform the inspection and carry out corrective works. The additional survey covered a range of hydraulic elements, including: hydraulic ram survey for change out; brakes inspection; hose and pipework assessment and corrective maintenance on the control station. Site specification of replacement components was made, along with photologs, method statements and site requirements for exchange.


MDL replaced the bogie channel rail tracks and runners, returning the bogie to its normal operating condition. As a result, the winch has been returned to service without impacting offloading schedule. To complete the work package, MDL provided the client with detailed survey notes, together with a summary of recommendations for remedial works to maximise the service life of the system components.

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