If the engine start button fails to stay in during an engine start, what is your first action?

The correct action to take when the engine start button fails to stay in during an engine start involves ensuring that the ignition source is properly selected. This is crucial because an incomplete or failed engine start can often be related to issues with the ignition system. If the ignition source is not correctly set or is inoperable, you may not achieve a successful engine start, and holding the button in or discontinuing the start prematurely could lead to unnecessary troubleshooting or delays.

Verifying the ignition source before taking further actions ensures that you address the most common cause of a failed start first. This systematic approach helps prevent overlooking essential systems that could lead to the malfunction, ensuring that the engine receives the necessary ignition to initiate the start sequence. After confirming the ignition source, if it is indeed selected correctly and the problem persists, then you would proceed to other troubleshooting steps, such as checking circuit breakers or considering discontinuing the start based on additional findings.