Which document should a DP operator review to understand the consequences of failure in a redundant part of a DP system?

The Failure Modes and Effects Analysis (FMEA) is the appropriate document for a DP operator to review in order to understand the consequences of failure in a redundant part of a DP system. FMEA systematically evaluates the potential ways in which a component could fail and assesses the impact of that failure on the system's overall performance.

By studying the FMEA, a DP operator gains insights into not only the types of failures that can occur within a redundant system but also the severity and likelihood of each failure mode. This analysis helps in understanding what consequences might arise from such failures, including whether they could lead to operational issues or compromise the vessel's safety. FMEA information is essential for making informed decisions about risk management and operational readiness, as it identifies critical components and potential points of failure.

The other documents, while important in their own right, do not provide the same level of detail specific to failure analysis in the context of redundancy. The Safety Management System outlines safety protocols and emergency procedures, the Operational Procedures Manual provides guidance on daily DP operations and procedures, and the Equipment Maintenance Log records the maintenance history and status of equipment. However, none of these documents specifically analyze the effects of particular failures within the DP system as comprehensively as the FMEA does.