Final answer:
Concurrent Servicing in aircraft maintenance refers to conducting multiple servicing tasks simultaneously to reduce aircraft ground turn time. It is optimized based on the type of aircraft, servicing tasks, and resource availability. The specific timing of CS usage varies by operational needs.
Step-by-step explanation:
The student appears to be asking about a procedure related to aircraft maintenance, specifically referencing Concurrent Servicing (CS). Concurrent Servicing is a term used within the context of aviation maintenance and operations. It refers to the coordination of servicing tasks that can be conducted simultaneously while an aircraft is on the ground, with the aim of reducing ground turn time—the period an aircraft spends on the ground between flights.
Ground turn time could include refueling, cleaning, cargo loading/unloading, and pre-flight checks, among other things. Whether or not Concurrent Servicing can be used often depends on various factors such as the type of aircraft, the nature of the servicing tasks, and available resources. Typically, CS is planned and executed in a manner that ensures safety and efficiency while aiming to decrease the overall time an aircraft spends grounded.
In summary, Concurrent Servicing is utilized to optimize aircraft ground turn time, but the specific answer to when CS will be used can vary depending on several operational factors.