What type of maintenance is indicated by a 100-hour inspection?

The correct choice pertains to routine maintenance for aircraft that carry passengers for hire. A 100-hour inspection is specifically mandated by aviation regulations for aircraft that are used for hire, such as commercial flights or flight training. This type of inspection is crucial to ensure the safety and airworthiness of the aircraft after a set number of flight hours and is required for commercial operations to comply with federal aviation regulations.

This inspection includes checks on systems, components, and overall functionality to ensure that the aircraft remains in safe operating condition while carrying passengers. Failing to perform this inspection could lead to safety hazards and regulatory violations for commercial operators.

In contrast, preventive maintenance applies generally to both private and commercial aircraft, but it does not specifically refer to the more rigorous stipulations associated with a 100-hour inspection. Military aircraft follow different maintenance schedules that include inspections that are not typically divided into hourly segments like civilian aircraft. Emergency inspections are reactive in nature, arising from specific incidents or findings, rather than being scheduled regular inspections.