Key Steps After Starting the APU: Safety First!

When you start the Auxiliary Power Unit (APU) with slats extended, there’s a lot happening in that cockpit. You know what I mean? It's a bustling space where every second counts, and every action has its significance. So, what’s your first move? Spoiler alert: it’s all about retracting those slats as soon as it’s possible!

The APU is your trusty companion on the ground, providing power before the main engines kick in. And while those slats are great for enhancing lift at low speeds, having them out during APU startup isn't the best idea. Why, you ask? Well, having the slats extended increases drag, which can mess with the aircraft’s stability and safety during the startup phase. You definitely don’t want any unexpected maneuvers or wind fluctuations catching you off guard!

Now, let’s break it down. When the APU fires up, your primary focus needs to be on retracting those slats. This action is pivotal for ensuring that the aircraft remains in its streamlined configuration. Think of it as making sure everything is buttoned up before heading out into the wild blue yonder. Keeping movable surfaces like slats in their proper configuration is a basic safety protocol that helps maintain aerodynamic stability.

Sure, you might think, “But what about communicating with the ground crew, or checking fuel levels?” Don't get me wrong, those are super important too, but they come into play after you've handled the slats. Remember, the slats are all about producing lift during crucial phases of flight, but when it’s just you and the APU on the ground, keeping things tidy in terms of configuration takes priority.

To connect the dots, just imagine you’re driving a sports car. You wouldn’t start speeding off with your convertible top down in a gusty wind, would you? No! You’d retract the top to ensure the ride is smooth and secure. It’s the same principle in aviation. By keeping everything streamlined, you minimize the risks associated with potential hazards.

As you familiarize yourself with these procedures in your Aviation Computer Based Training (CBT), always remember to assess the situation, follow safety protocols, and take the right steps at the right time. The more you practice these responses, the more instinctual they’ll become.

So, next time when that APU rumbles to life, you’ll know exactly what to do. You’ll be keeping your mind sharp, your aircraft safe, and setting a solid foundation for everything that follows in your pre-flight checklist. Now, that’s what I call being ahead of the game!