During a routine planned maintenance task on a piece of safety-critical equipment, an unexpected and more serious fault is discovered than the task was designed to check for. What should happen next?

A. Unexpected findings during routine maintenance should be disregarded since they fall outside the planned task's defined scope

B. Only faults the original task was specifically designed to find should ever be reported, regardless of what else is discovered

C. The unexpected fault should be logged for the next scheduled maintenance cycle, with the current task closed out as planned regardless of severity

D. The finding should be properly assessed and escalated according to its actual severity, even if this means the routine task takes longer or the equipment needs to be taken out of service temporarily — treating an unexpected serious finding as just "part of the routine task" and closing it out on the original schedule risks under-responding to a genuinely more serious issue

A. A PMS eliminates the need for any reactive/breakdown maintenance once fully implemented

B. To ensure equipment is maintained at intervals based on manufacturer recommendation, class/statutory requirement, and operational criticality before it fails, shifting maintenance from purely reactive (fix it when it breaks) to proactive — with the added benefit of providing a documented, auditable history of what has been done and when

C. The PMS exists purely to generate paperwork for class surveys, with no real operational safety function

D. A PMS is only relevant to engine room equipment and has no application to deck or bridge equipment

A. All equipment should receive identical maintenance treatment regardless of its function or consequence of failure, for simplicity

B. Criticality assessment is only relevant to DP vessels and has no application to conventional vessels

C. Equipment is assessed for criticality based on the consequence of its failure (safety, environmental, or operational impact) and how quickly that consequence would materialise — safety-critical equipment with no redundancy (e.g. steering gear) warrants tighter maintenance intervals and guaranteed spares availability compared to equipment whose failure has minimal or easily-managed consequence

D. Criticality is determined solely by the original purchase cost of the equipment, not its function or failure consequence