Citation 560XL/XLS: Keeping Avionics Online During Engine Startup
Contributed by Chuck Zahnow, Airframe Tech Rep
The normal engine startup sequence for Citation 560XL aircraft removes power from the avionics system, causing it to drop offline. The reason for this is the avionics are isolated from the start system. SB560XL-24-14R2 allows the avionics to stay online by using the APU generator during engine start.