AM.III.J.S2
SkillInspect an alternate air valve for proper operation.
From the FAA library
- Appendix F—ATC Transponder Tests and Inspections › Subpart E—Maintenance, Preventive Maintenance, and Alterations
time in service, calendar times, or cycles of operation from the current program must be carried over to the subsequent program. Section 91.411—Altimeter System and Altitude Reporting Equipment Tests and Inspections Commonly referred to as “the 411 test,” this ... closed,” except for the normal use of the system drain and alternate static system pressure valves. If the automatic pressure altitude reporting system of the air traffic control (ATC) transponder is either installed or subjected to maintenance actions, the system…
- Chapter 16: Cabin Environmental Control Systems › Air Cycle Air Conditioning › System Operation
Air Cycle Air Conditioning Air cycle air conditioning prepares engine bleed air to pressurize the aircraft cabin. The temperature and quantity of the air must be controlled to maintain a comfortable cabin environment at all altitudes and on the ground ... air cycle system is often called the air conditioning package or pack. It is usually located in the lower half of the fuselage or in the tail section of turbine-powered aircraft. [Figure 16-62] System Operation Even with…
- Chapter 16: Cabin Environmental Control Systems › Air Cycle Air Conditioning › Component Operation
Component Operation Pack Valve The pack valve is the valve that regulates bleed air from the pneumatic manifold into the air cycle air conditioning system. It is controlled with a switch from the air conditioning panel in the flight deck ... Many pack valves are electrically controlled and pneumatically operated. Also known as the supply shutoff valve, the pack valve opens, closes, and modulates to allow the air cycle air conditioning system to be supplied with a designed volume…