A DP vessel has undergone a major thruster upgrade. The FMEA has not been updated to reflect the new configuration. What are the operational implications?

A. The vessel retains its DP class notation regardless of whether the FMEA is current

B. The DPO can operate using the old FMEA provided an internal review has been completed

C. The existing FMEA no longer accurately represents the vessel's failure modes or its true WCF; operating on an outdated FMEA means the ASOG and consequence analysis derived from it may be incorrect — the class-required redundancy cannot be confirmed until the FMEA is revalidated

D. No implications — the FMEA only needs updating every five years regardless of modifications

A. The FMEA is a voluntary best-practice document that the operator prepares for internal training purposes

B. The FMEA is a class-required document that systematically analyses each identifiable failure within the DP system and proves, by showing which failures are tolerable without loss of position, that the vessel has the redundancy claimed for its class notation

C. The FMEA is only required when the vessel changes DP class notation

D. The FMEA specifies the maintenance schedule for DP thrusters

A. The shipowner/operator commissions the FMEA, prepared by a specialist firm; it is reviewed and approved by the classification society as part of DP class certification

B. The DPO prepares the FMEA as part of their annual competency review

C. The flag state maritime authority prepares all FMEAs

D. IMCA prepares FMEAs directly for member vessels