Which statement best describes the function of the MM01 form in flight operations?

• A. It logs flight plans
• B. It schedules maintenance
• C. It records discrepancies and actions
• D. It tracks fuel

Answer: (C)

Discrepancy documentation and follow-through is essential to safe, reliable operations. The MM01 form is the record used to log any abnormal condition, defect, or deviation from standard, along with the actions taken to investigate and correct it. It captures what was found, when, who handled it, what maintenance actions or parts were involved, and the current status of the issue. This creates an auditable trail that ensures issues aren’t forgotten, supports maintenance planning, and demonstrates regulatory compliance. For example, if a cockpit advisory or indicator shows a fault, the discrepancy is entered on the MM01, a corrective task is assigned, the necessary work is completed, and the form tracks the resolution. This is different from logging flight plans (routing and timing), scheduling maintenance (planned tasks ahead of time), or tracking fuel (fuel on board and consumption). In short, MM01 is about recording discrepancies and the actions taken to resolve them.