Explain the procedure for an in-flight engine shutdown.

The procedure for an in-flight engine shutdown emphasizes safety and follows established protocols to ensure the well-being of all onboard. When faced with the necessity for an engine shutdown, the correct approach involves following the abnormal procedures checklist. This checklist is designed to provide step-by-step guidance on handling such critical situations, ensuring that pilots can mitigate risks and respond effectively.

By diverting to the nearest suitable airport, the flight crew prioritizes the safety of the aircraft and its passengers. This action allows for a controlled response to the engine issue, enabling a safe landing rather than risking a flight to the final destination, where complications could arise without adequate resolution of the engine problems.

The other options do not align with the safety protocols expected in such scenarios. For instance, calling the cabin crew and waiting for instructions does not address the immediate need to manage the flight safely. Additionally, opening cockpit windows is impractical and unsafe during flight. Continuing to the final destination disregards the potential dangers posed by an inoperative engine, increasing risk rather than managing it responsibly. Thus, adhering to the abnormal procedures checklist and prioritizing a diversion is the most prudent and safe course of action.