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Flashcards in Pressurization Deck (5)
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1

When do recirculation fans not work?

When DUMP button is pressed.
Smoke is detected in the recirculation bay.
The perspective pack is off.

2

Where does air in graspers come from?

Air from the right recirculation fan.

3

Cargo ventilation.

Forward comes from the cabin and then vented off..... Aft is not vented.

4

Emergency ram air ventilation.

Left side ram opens if in flight and both packs are commanded off or failed and below 25,000 feet.

5

What do recirculation fans do?

Help reduce the work load on the packs by recirculating already conditioned air and remixing it with incoming air in flight deck and cabin... Provides a mix of 52% fresh air and 48 recirculated.