A 100-hour Inspection is required for:

• A. For hire
• B. For instruction where the instructor provides the aircraft
• C. For insurance coverage only
• D. For hire OR for instruction where the instructor provides the aircraft

Answer: (D)

The main idea is that a 100-hour inspection is required whenever an aircraft is used for hire or for flight instruction for hire. This includes scenarios where the instructor provides the aircraft for the training, because the operation is still a for-hire activity. It isn’t tied to insurance or to instruction where the aircraft isn’t provided by the instructor; those situations don’t automatically trigger the 100-hour requirement. So the best answer covers both conditions—for hire or for instruction where the instructor provides the aircraft—since both involve operating the aircraft in a compensated, for-hire context.