What document supersedes all other documentation in the maintenance process?

The Maintenance Requirement Card (MRC) is a critical document in the maintenance process, serving as the primary guideline for conducting preventive maintenance checks and services. MRCs outline the procedure, frequency, and necessary tools for maintenance tasks, making them essential for ensuring that equipment remains operational and efficiently serviced.

MRCs take precedence because they contain specific instructions required to execute maintenance actions. These cards are directly tied to the Planned Maintenance System (PMS), which integrates all aspects of preventive maintenance into a structured program. While other documentation, such as the List of Effective Pages (LOEP) or the Maintenance Plan, provides context and structure for maintenance planning, it is the MRC that dictates the specific tasks needed for maintenance and is used day-to-day in operational settings.

Ultimately, the MRC's role as an authoritative document means it supersedes others during routine maintenance operations, ensuring that the maintenance is performed according to the latest and most accurate directives. As a result, the MRC serves as a fundamental component of the Navy's maintenance management process.