CHECK VALVE -TRIM AIR

21-63-42-000-001-A [10]
Removal of the Trim-Air Check Valves
21-63-42-210-001-A [10]
Detailed Visual Inspection of Trim-Air Check-Valves Flappers for Condition and Operation
21-63-42-400-001-A [10]
Installation of the Trim-Air Check Valves