What happens after completing all four phases of progressive maintenance?

Completing all four phases of progressive maintenance does indeed count as an annual inspection. This approach allows for a more flexible inspection schedule, dividing the traditional 100-hour or annual inspections into smaller, manageable segments. Each phase covers specific components and systems, ensuring that comprehensive maintenance is performed over time.

By successfully completing all phases, the aircraft meets the regulatory requirements for an annual inspection, providing assurance that it is airworthy and compliant with safety standards. This allows operators to maintain rigorous oversight of their aircraft while avoiding prolonged downtime associated with conventional inspection methods. Thus, the result of completing the progressive maintenance phases not only fulfills regulatory mandates but enhances overall operational safety.