Air Systems AIR

Question 1

Where on the aircraft can a bleed leak be detected?

Answer 1

Wings: each bleed air duct
Engine pylons
Aft Fuselage: area surrounding the APU bleed air duct

Question 2

What are the 2 pressure controllers and how do they switch roles?

Answer 2

1. Active and standby pressurization controllers
2. Automatically: shortly after landing or
   If active press controller fails
   Manually: placing the MODE SEL push button to MAN for 10 seconds and then returning it to AUTO(lights out) mode

Question 3

In the event the flight must return to the departure airport immediately after takeoff, what pressurization system action must be taken by the pilot?

Answer 3

No action

The systems “Abort mode” takes care of it automatically.

Question 4

What’s the function of each position of the X BLEED Selector?
(Pic)

Answer 4

1. SHUT - commands crossbleed valve closed, overriding auto logic
2. AUTO - logic controls opening and closing of the crossbleed valve
   A. Commanded open when the APU bleed
   Valve is open
   B. Commanded closed when APU bleed
   Valve is closed
   C. Commanded closed when a bleed leak is
   Detected
3. OPEN - commands crossbleed valve open, overriding auto logic.

Question 5

What are the indications of external high pressure air being applied to the pneumatic system?
(Pic)

Answer 5

With NO internal air source being provided(ie. APU or engine bleed air), a PSI value is displayed on the left side of the ECAM BLEED page. By default the air source must be an external high pressure air cart

Question 6

What are the indications of the Engine Bleed Valves and HP(High Pressure) valves on the EVAM BLEED page?

Answer 6

1. Engine bleed valves are depicted next to the respective engine’s number(1 and2) on lower portion on the page
2. HP valves are depicted on the lower portion of the page next to the white HP designator.

Question 7

Are IP(Intermediate Pressure) check valves depicted on the ECAM BLEED page?

Answer 7

No - they are only represented by a white IP designator. The valves are not drawn.

Question 8

What are the indications when APU bleed air is in use.

Answer 8

1. APU bleed valve indicates open on the ECAM BLEED page

2. APU BLEED is presented in green on the memo section of the E/WD

Question 9

What are the ECAM indications on the ECAM COND page of a Zone Regulator channel failure?
(Pic)

Answer 9

1. Primary channel failure: ALTN MODE appears at top of COND page.
2. Secondary channel failure: all temperature values are replaced with Amber Xs.
3. Primary and secondary channel failure:
   A. PACK REG appears at top of COND page
   B. All temp values are replaced with Amber Xs

Question 10

What are the Indications of pack failure?
What ECAM page?
(Pic)

Answer 10

1. Primary:
   A. ECAM failure message appears on E/WD memo section
   B. All pack information presented on the BLEED page is still present
2. Secondary:
   A. All temp indications for the corresponding
   Pack will be replaced with Amber Xs
3. Primary and secondary channel failure:
   A. All temp indications for corresponding pack will be replaced by Amber Xs.
   B. ECAM failure message appears in the E/WD memo section

Question 11

Which cargo compartment is heated and ventilated?
What page or pages monitors it?
(Pic)

Answer 11

1. Only aft cargo compartment can have its temperature controlled, using the controls located on the overhead CARGO HEAT panel
2. Temperature of the aft cargo compartment can be monitored by referencing the ECAM COND or CRUISE pages

Question 12

How many pressurization controllers are installed on the aircraft and where is the active system displayed on ECAM?
(Pic)

Answer 12

1. 2 pressurization controllers
2. Designated as SYS 1 and SYS 2,

3 current active system can be viewed on the EVAM CAB PRESS page

Question 13

What is the function of the LDG ELEV Selector?
What computer does it effect?
(Pic)

Answer 13

1. In AUTO (detention) position the FMGCs provide the pressurization system with the landing field elevation
2. Outside of AUTO (turning clockwise):
   A. Landing field elevation is set manually
   B. Used when BOTH FMCGs fail or when landing airport is not in FMS database

Question 14

How is the LDG ELEV Selector calibrated?

Answer 14

In thousands not hundreds of feet

Question 15

What is the function of the manual pressurization controls?

Pic

Answer 15

1. MODE SEL pb:
   A. Selecting MAN(light on) enables use of the MAN V/S CTL toggle switch to manually control the outflow valve
   B. Deactivated the auto pressurization mode
2. MAN V/S CTL toggle switch:
   A. UP commandsthe outflow valve to open,
   Reducing cabin pressure - increasing
   Cabin’s altitude. “Taking the cabin up”
   B. DN commands the outflow valve close,
   Increasing cabi pressure- decreasing
   Cabin altitude “taking the cabin down”

Question 16

How is the pressurization monitored?

Which pages?

Answer 16

Performance can be monitored on either ECAM CAB PRESS or Cruise pages

Question 17

What is the function of the DITCHING pb?

Pic

Answer 17

Placing the pb to ON commands the following to close:

1. Outflow valve((if the Mode Select pb is auto)
2. Emergency ram air inlet
3. Avionics ventilation inlet valve
4. Avionics ventilation extract valve
5. Pack flow control valves

(All these valves are located below the aircrafts flotation line)

Question 18

What is the Avionics Compartment’s venting and cooling configuration that is not automatic and requires pilot action?
(Pic)

Answer 18

1. AVIONICS SMOKE - requires to vent smoke overboard
2. Placing the BLOWER and EXTRACT pbs to OVRD(whit):
   A. Allows additional air conditioning to
   Enter the compartment
   B. Forces air within compartment
   Overboard

Question 19

What is the indications of smoke in the avionics compartment on the ventilation penal?
(Pic)

Answer 19

FAULT (Amber) appears on the BLOWER and EXTRACT pb