Originally Posted by AerChungus

I'm former ramp for the other WO AA carrier. That might be on some LMS slide in training, but in practice as soon as the plane comes to a complete stop everybody tries to chock the tires and start unloading. We would have had no real way of knowing whether the APU was deferred or not. In my experience, it's usually not particularly hard to notice if an engine is still running but when I started I made the mistake of walking around the back of a 175 when an engine was idling (whether the APU was deferred or not, I'll never know) and got blown across the ramp