When should a profile A/full aircraft check be performed?

A profile A/full aircraft check is designed to ensure that the aircraft is in optimal condition after periods of inactivity, particularly after being grounded for 30 days or more. This check is crucial because extended periods without operation can lead to various concerns, such as corrosion, fluid degradation, and the degradation of electronic systems. By conducting a thorough inspection and maintenance following such a downtime, the flight safety and operational readiness of the aircraft can be confirmed.

In contrast, checks after every flight are related to daily or post-flight inspections that are of a lower scope than a full check. Maintenance procedures often involve specific inspections that are tailored to the nature of the procedure rather than a comprehensive assessment of the entire aircraft. Flight simulations also do not typically necessitate a full check as they do not involve actual airborne conditions that might adversely affect the aircraft. Therefore, the context of the profile A/full check emphasizes its importance after long periods of inactivity to maintain safety and airworthiness.