FAA Inspection Authorization Practice Test

Airworthiness limitations specify the actions required to keep an aircraft legally and safely airworthy, based on the certification basis. Among these, mandatory replacement times are the information that must be included in the Airworthiness Limitations Section. They define the finite life of certain parts and require their replacement on a set schedule to prevent failure due to fatigue or wear.

Wear tolerances, methods of control surface balancing, and lubrication intervals are important maintenance details, but they are not the specific items designated as airworthiness limitations. They belong to general maintenance data or design and maintenance procedures, not the mandatory airworthiness limits that must be followed to legally operate the aircraft.