Environmental Control System

Question 0

What does the AMS controller control

Answer 0

Bleed control
Air conditioning control
Hot air leak detection
Crew O2 monitoring
Wing/engine ice protection
And interfaces with smoke detectors

Question 1

What makes up the air management system

Answer 1

The pneumatic system
The environmental control system
-
The cabin pressure control system is part of the AMS, but it has a separate controller

Question 2

How many channels does the AMS contain

Answer 2

2, fault results in automatic switching

Question 3

Where are the packs located

Answer 3

In the wing-to-fuselage fairings

Question 4

Which recirc fan powers the graspers

Answer 4

The right

Question 5

What is the mix of fresh and recirculation air

Answer 5

52% / 48%

Question 6

Where does the forward e-bay get its air and how many fans

Answer 6

From the cockpit, 3 fans

Question 7

Where does the center e-bay get it’s air, how many fans

Answer 7

From rear cabin, 3 fans

Question 8

Where does the aft e-bay get it’s air, how many fans

Answer 8

From passenger cabin, no fans

Question 9

Which cargo bay gets ventilation

Answer 9

Forward only

Question 10

When is the flight deck pack emergency ram air ventilation valve commanded OPEN

Answer 10

Only if both ESC cooling packs are commanded OFF or failed OFF and the plane’s altitude is less than 25,000 ft

Question 11

The FADEC ECS OFF signal closes the packs during TAKEOFF for which situations

Answer 11

• One engine inop and APU bleed is not avail
• thrust levers set to max and APU bleed not avail
• T/O DATASET REF ECS set to OFF and APU bleed not avail
• T/O DATASET REF ECS set to OFF and T/O DATASET REF A/I set to ALL on MCDU

Question 12

The FADEC ECS OFF signal closes the packs during GO-AROUND for which situations

Answer 12

• One engine inop and APU not avail up to 9700ft
• thrust levers set to max and APU bleed not avail
• thrust levers set to max and wing ice protection system is requested ON

Question 13

When The FADEC ECS OFF signal closes the packs, they can be recovered if any of which conditions occur

Answer 13

• thrust lever reduction below to/ga
• the airplane is taking off with 2 engines operating above 500’ above field
• the airplane is above 9700’, for takeoffs at airports 8000ft and below, and one engine operating
• the airplane is above 15,000’, for takeoff from airports above 8000ft, and one engine inop
• the airplane is above 9700’ during go-around with one engine inop