If a discrepancy on MM01 is deferred, what must be checked?

When a discrepancy on MM01 is deferred, it is essential to ensure that it is properly deferred according to the approved Minimum Equipment List (MEL). The MEL outlines the items that may be inoperative under specific conditions and provides guidance on the proper procedures for deferring discrepancies. This ensures that the aircraft remains airworthy and compliant with aviation regulations while allowing for necessary repairs or maintenance to be scheduled at a later time.

Deferring a discrepancy incorrectly or without consulting the MEL could lead to safety issues or regulatory violations, making it crucial for operators to reference this list when determining the legitimacy of deferring any discrepancies. Proper use of the MEL also helps maintain a clear and safe operating environment, ensuring that all crew members and maintenance personnel are aware of the aircraft's limitations and operational capabilities during its flight.