If, during a "Mag. drop" check the engine cuts, what action must be taken?

The appropriate action when an engine cuts out during a "Mag. drop" check is to stop the engine. This procedure is in place to ensure safety and prevent potential damage to the engine.

During a "Mag. drop" check, you are assessing the functionality of the magnetos, which are critical components that produce sparks for ignition. If the engine cuts out while performing this check, it indicates a significant problem, such as a malfunctioning magneto or a severe issue with the ignition system. Continuing to operate the engine without addressing the cut out could lead to further complications or an unsafe flying condition.

Stopping the engine allows the pilot to assess the situation thoroughly and take the necessary steps, such as troubleshooting or seeking maintenance assistance, before attempting to relight the engine or take any other actions that could compromise safety. This ensures that all potential issues are addressed correctly and minimizes risks associated with in-flight engine failure or ignition system malfunctions.