Pneumatic: Bleed/Pack Condition

Question 1

Bleed/Pack Condition:

Maximum operating altitude when one bleed or pack is closed is __________ ft.

Answer 1

25,000’ (AFM)

Question 2

Bleed/Pack Condition:
When operating with APU bleed supplying Pack 1 (Eng. 1 bleed closed) and engine 2 supplying Pack 2 (crossbleed closed), maximum operating altitude is __________ ft.

Answer 2

37,000’ (Non-AFM)