Which inspection program allows an aircraft to exceed the inspection interval by 10 hours while en route to the inspection site?

The inspection program that allows an aircraft to exceed the inspection interval by 10 hours while en route to the inspection site is both the 100-hour inspection program and the progressive inspection program.

In the case of the 100-hour inspection, federal regulations permit a maximum extension of 10 hours to provide flexibility for operators, especially when traveling to reach a maintenance facility for the required inspection. This provision helps prevent service disruptions and allows pilots to make necessary navigation decisions safely.

Similarly, progressive inspection programs, which are designed to break down the inspection into smaller, more manageable tasks, also allow for this 10-hour extension. This flexibility is key for the scheduled maintenance of aircraft engaged in frequent flights.

Both programs are structured to ensure compliance and safety while accommodating operational realities, which is why the answer encompasses both the 100-hour and progressive inspection programs.