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Shakewell

Civil Aviation

CMM

The component vendor's manual for testing, repairing and overhauling a unit away from the aircraft, in a workshop.

Definition

What CMM Means

CMM stands for

Component Maintenance Manual

A CMM covers what the AMM does not: disassembly, inspection against limits, the repairs that are approved, reassembly and test. It is published by the company that made the component.

For a repair station it is a regulatory artifact as much as a technical one, because capability is tied to holding current data for the components it is approved to work.

Also written: component maintenance manual, vendor manual

What is a Component Maintenance Manual?

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Beyond the Definition

Knowing what a term means is the easy half. If you need to know what it obligates on your program, that is the conversation we are built for.