CHECK VALVE - EMERGENCY RAM AIR INLET

21-55-41-000-001-A [10]
Removal of the Emergency Ram-Air Check-Valve
21-55-41-210-001-A [10]
Detailed Visual Inspection of Emergency Ram-Air/Low Pressure Ground-Air Check-Valve Flappers for Condition and Operation
21-55-41-400-001-A [10]
Installation of the Emergency Ram-Air Check-Valve