What does Aircraft Service Period Adjustment (ASPA) assess?

The Aircraft Service Period Adjustment (ASPA) specifically evaluates the material condition of the aircraft at a depot level. This process is essential for ensuring that the aircraft meets required safety and operational standards before it returns to service. Assessing the material condition involves a thorough examination of the aircraft's structure, systems, and components, which helps identify any necessary repairs or replacements that may be needed based on the wear and tear experienced during its service.

The focus on the material condition means that ASPA is concerned with the physical integrity of the aircraft rather than factors such as the performance of the flight crew, the aircraft's performance in varying weather conditions, or merely the historical flight hours recorded. By prioritizing material assessment, ASPA safeguards the reliability and safety of the aircraft, ensuring that it is fit for future operations.