How long must you wait before servicing the AMAD?

To service the AMAD (Auxiliary Mounted Accessory Drive), it is crucial to allow sufficient time for the engine components to cool. The correct waiting period is 30 minutes after shutdown. This time frame is established to ensure operator safety and to prevent burns or injuries from hot components, as the AMAD can retain heat after the engine is turned off.

Waiting for 30 minutes allows for the dissipation of heat from the engine, ensuring that any servicing tasks can be performed safely. This procedure aligns with best practices in aviation maintenance, emphasizing adherence to safety protocols. By following this waiting period, personnel can effectively minimize the risk of thermal injury and ensure they can handle components comfortably during maintenance activities.

In this context, the other options present either insufficient or excessive waiting times. A shorter wait, like 15 minutes, may not be adequate for cooling down, while longer waits, such as 1 hour or 2 hours, extend downtime unnecessarily and can delay aircraft readiness without providing additional safety benefits. Thus, a 30-minute wait strikes the necessary balance between safety and operational efficiency.