During an external engine fire response, after shutting down the engine, what is the next step?

After shutting down the engine during an external engine fire response, the proper next step is to enter the main landing gear (MLG) compartment and disconnect the electrical connectors. This action is critical for ensuring safety and preventing additional hazards. Disconnecting the electrical connectors minimizes the risk of live electrical systems igniting further fuel or fire sources during an emergency situation.

The MLG area serves as a point of access to various systems that may need to be deactivated to mitigate the fire. By securing the power supply, you reduce the chances of electrical shorts or arcing that could exacerbate the fire or allow it to spread.

While other actions may be important during different phases of engine fire management, the immediate next step in this scenario focuses on safety and control over the aircraft's electrical systems, which is vital in preventing additional complications during a fire response.