MTSU Aerospace Practice Test

What is the primary applicability of the 100-hour inspection?

Only used for hire Required for all aircraft every 100 hours For private operation only Optional for hire aircraft

Correct Answer:

Only used for hire

Explanation:

The main idea is that the 100-hour inspection is a maintenance interval tied to aircraft used for hire. It is required for airplanes that carry people or property for compensation, or that are used for flight instruction for hire. Because of that, private operations under Part 91 aren’t governed by a mandatory 100-hour schedule—their routine checks follow the annual inspection instead. So, describing the 100-hour inspection as primarily applicable to aircraft used for hire accurately captures its purpose. It isn’t a universal requirement for all aircraft, it isn’t limited to private operations, and it isn’t optional for airplanes used for hire.

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