The need for a maintenance review emerged due to the loading pressures on the T23 and the initiatives from Project RENOWN, which aimed to reset maintenance boundaries and balance uniform and contracted resources.
The primary objective of the T23 Maintenance Optimisation project was to analyse current maintenance strategies, identify areas for improvement, and develop optimised solutions to reduce planned downtime, increase operational efficiency, and lower maintenance loading and costs. The project also included revising maintenance task durations and re-evaluating watchkeeper tasks to align with the new management strategy for watchkeeper maintenance.
Throughout the project, Xpedite collaborated with the platform authority to develop positive relationships, ensuring a collaborative output and that project benefits met customer expectations.
A preapproved ruleset was established to ensure consistent changes throughout the studies, with maintenance updated accordingly and subject to further study-specific updates. The process for deriving optimized maintenance schedules for the T23 class involved reviewing relevant failure data from ship staff feedback, S2012s, and OPDEFs. This provided facilitators with a thorough understanding of the system before implementing changes.
In addition to the maintenance schedule reviews, a comprehensive review of task durations was conducted in line with the TOF, with the elements covered agreed upon with MMSG. Xpedite also assessed all T23 tasks to determine if they could be watchkeeper candidates, aligning with the previous WK review and using defined rulesets agreed with the RENOWN team.
Upon project completion, a final report was delivered detailing the change metrics and loading savings, helping the customer understand the implications of the maintenance optimization project on platform loading at a section level.
As demonstrated through the final report delivered to the customer, the number of tasks and maintenance loading was reduced by optimising the maintenance. The project has delivered potential benefits that support the project RENOWN initiatives, reducing contractor assigned maintenance and ship staff maintenance burden. Key benefits and outcomes of the project include:
Xpedite’s Through Life Availability Modelling (TLAM) Tool has also been used to show potential enhanced benefits, demonstrating how a maintenance schedule can be further optimised to best fit the selected operating cycle and also how an optimised maintenance schedule can drive the operating cycle, maintaining ship availability following a leaner maintenance schedule.
Finally, Xpedite’s Lived Experience Simulation Tool (LEST) has simulated the post optimisation maintenance loading to evidence the true maintenance requirement for all skill sets, allowing for re-allocation of maintenance between maintainers, sections and maintenance authority to reset the maintenance boundaries and model the impact
