Plain English Meaning
The AFM is the official handbook for a specific aircraft. It tells the pilot how the aircraft must be flown, what its limits are, what to do in normal and emergency situations, and how it performs. It is approved by the FAA and must be on board the aircraft.
Full Definition
The Aircraft Flight Manual (AFM) is the official document, approved by the FAA and produced by the aircraft manufacturer, that contains the operating limitations, performance data, normal and emergency procedures, weight and balance information, and systems descriptions specific to a particular aircraft. It is required to be on board during flight and is the legal authority on how that aircraft must be operated.
Context Anchor
A uses the AFM during , aircraft checkout, calculations, and any time a limitation or approved must be confirmed.