21st Century U.S. Army Maintaining Aviation Life Support Equipment (FM 1-508)

In the preface, it states: "Aviation life support equipment (ALSE) is designed to sustain aircrews and passengers throughout the flight environment. It does this by increasing their mission effectiveness and providing a means of safe and reliable escape, descent, survival, and recovery in emergency or combat situations. FM 1-508 is written for peacetime and all dimensions of battlespace environments. It applies to commanders and aviation unit maintenance, aviation intermediate maintenance, depot, and operations personnel. The ultimate goal of this manual is to establish a standardized ALSE maintenance program and support the need for an adequate shop."

This manual is produced by Headquarters, US Army Training and Doctrine Command (TRADOC).