Which document provides a detailed procedure for performing maintenance?

• A. Maintenance Manual
• B. Work Instructions
• C. Maintenance Requirement Card (MRC)
• D. Preventive Maintenance Plan

Answer: (C)

The document that provides the exact steps technicians use to carry out maintenance is the Maintenance Requirement Card. It is designed to specify, for each asset, what maintenance must be done and how to do it, including the sequence of actions, the tools and materials needed, safety notes, inspection checks, and the acceptance criteria. This makes the MRC a practical, in‑the‑field reference that translates the maintenance plan into concrete, executable instructions, so technicians can perform tasks consistently and verify they’re completed correctly.

While a maintenance manual can contain procedures and a preventive maintenance plan outlines when maintenance occurs, the Maintenance Requirement Card focuses on the perform‑it‑now details for each asset. Work instructions are typically task‑specific and may be more granular, but the MRC consolidates the required maintenance actions and the exact procedures in one place, which is why it’s the best fit for providing a detailed procedure to perform maintenance. For example, it would specify the steps to isolate equipment, access components, inspect parts, apply lubrication at precise points, reassemble, test, and confirm results against defined criteria.