Guireg Capitaine

On a CTV or an SOV, maintenance does not only protect the vessel: it protects the day rate. Duty cycle, structural fatigue, motion-compensated gangways, weather windows, the traceability charterers demand and the contractual KPIs — a practical guide to protecting the availability of your offshore wind support fleet.

Fuel is a vessel's largest variable OPEX line. Compare the three measurement methods — tank soundings, volumetric and Coriolis flow meters, running hours — with their real accuracy and traps. Bunker quantity control, data structuring, g/kWh KPIs and alert thresholds that turn consumption into a machinery diagnostic tool.

Spreadsheets still run maintenance on thousands of ships, and for good reason: free, familiar, flexible. But past the third vessel, diverging versions, lost history, missed certificate dates and unreliable stock cost far more than software. Breaking points, comparison table, cost calculation and a clean migration path.

The IMO has required cyber risk in the SMS since 2021, and IACS UR E26 and UR E27 apply to ships contracted for construction from 1 July 2024. Here is the framework that actually applies, the evidence your technical department must produce, and how a CMMS delivers it on audit day.

A CMMS rollout does not fail on go-live day: it drifts three to six months later, quietly. Six failure modes seen on vessels in service, from the maker's programme loaded unedited to ticked boxes that prove nothing in an ISM audit. For each one, the symptom, the real cause and the fix.

A CMMS rollout at sea runs on port calls, dry-dockings and crew changes, not on an office project plan. This is the chronological checklist, phase by phase: what has to be dealt with, who does it ashore and on board, what gets delivered, and the criterion that says a phase is finished. Every table is on the page.