During an immediate airstart with PMU in norm, what should you set the PCL to for the restart?

In the context of an immediate airstart with the Power Management Unit (PMU) set to "norm," the appropriate setting for the Power Control Lever (PCL) is to move it to "idle" once N1 reaches above 13%. This procedure is critical to ensure that the engine receives the correct amount of fuel and airflow to achieve a successful restart.

When the PCL is set to "idle" above 13% N1, it allows the engine to stabilize and accumulate the necessary RPMs for proper combustion and engine operation. A restart initiated below 13% N1 might not provide sufficient airflow to ensure reliable ignition of the fuel, increasing the risk of an unsuccessful start. Thus, setting the PCL to "idle" above this critical threshold is essential for maintaining engine operational integrity during the restart process.

This careful management of engine parameters during an airstart is vital to minimize the risk of engine failure and ensure a safe response to emergency situations.