What should be your first action if experiencing an engine fire on the ground?

The first action to take in the event of an engine fire on the ground is to shut down the engine. Shutting down the engine helps to reduce the fuel supply to the fire, which is crucial for limiting its intensity and spread. By cutting off the flow of fuel, you can help mitigate the risk of the fire escalating and give yourself a better chance to manage the situation effectively.

In an engine fire scenario, immediate evacuation is also critical, but it should come after the engine is shut down to ensure that the aircraft's systems are not contributing further to the fire. Maintaining high RPM can actually exacerbate the situation by increasing fuel and potentially allowing for further fuel to be delivered to the fire. Calling emergency services is a necessary step but should not be the first action, as quickly addressing the source of the fire is essential to ensure safety for those on the ground.