What Are APUs And Why Do Some Planes Use Them?
The APU, or auxiliary power unit aboard an aircraft has a specific purpose, but also a pretty big drawback. Here's what you ...
Delta Air Lines Airbus A321neo Returns To Service After Cabin Smoke Prompted 2-Day Grounding
A Delta Air Lines Airbus A321-200N, which was recently forced to return to its origin airport after the crew discovered smoke ...