In the event of a propulsion system failure, what is the initial action required?

The correct approach to take in the event of a propulsion system failure is to consult the flight manual. The flight manual is designed to provide pilots with critical information and protocols related to in-flight emergencies, including propulsion system failures. It offers comprehensive guidance for managing various situations, ensuring that pilots can respond effectively and safely.

Consulting the flight manual allows the pilot to follow the established procedures tailored for the specific aircraft, which may include emergency checklists, troubleshooting steps, and recommended actions to stabilize the situation. This initial action is paramount for maintaining control over the aircraft and assessing the problem before proceeding to subsequent actions.

While performing a systems check, inspecting the propeller, or conducting a crankshaft runout inspection might be relevant at various stages of managing a propulsion failure, these actions would typically follow the consultation of the flight manual. The manual serves as the fundamental resource for determining the immediate necessary steps.