What is the maximum time interval between annual inspections for aircraft?

The maximum time interval between annual inspections for aircraft is one year. According to FAA regulations, specifically 14 CFR Part 91.409, every aircraft must have an annual inspection completed within 12 calendar months. This rule is critical for maintaining the airworthiness of the aircraft and ensuring that it is safe to operate.

The annual inspection involves a thorough examination of the aircraft systems, components, and structure to verify that they conform to approved design data and are in a condition for safe operation. Failure to conduct this inspection within the specified time frame can expose the aircraft to safety risks and potential legal issues.

While other inspection types may have different time requirements, such as a 100-hour inspection for rental or for-hire aircraft, the annual inspection specifically mandates the one-year timeframe to ensure that all aircraft, regardless of usage, are regularly assessed for their airworthiness.