Air Management Flashcards
(31 cards)
List the items that use bleed air.
Environmental control system (ECS), engine start, engine wing and horizontal stabilizer anti-icing system, cargo heating system (optional) and main cabin door pressurization seal. AOM 9-02-40
When is the cabin temperature control transferred to the VIP seat panel?
When the detent C is selected to the PAX CABIN TEMPERATURE CONTROL KNOB. AOM 9-02-30
In the event of a bleed leak detection, what light will illuminate in addition to an associated CAS message?
The PACK, BLEED 1, BLEED 2 or APU BLEED the amber light. AOM 9-02-30
When is the Outflow Valve (OFV) indication on the Environmental Control System (ECS) synoptic page displayed?
It is only available on the ground. AOM 9-02-30
What are the potential sources of bleed air that the Pneumatic System Controller (PSC) can automatically
select from?
Engines, the APU and external connections. AOM 9-20-40
Is it possible to have bleed from the APU and the engines simultaneously?
No. AOM 9-02-40
During normal operation on the ground and for taxiing, what is the primary source of bleed air?
The APU. AOM 9-02-40
What is the primary source of bleed air in flight?
The engines. AOM 9-02-40
When will the bleed air source be automatically transitioned to the engines?
When the airplane starts running for takeoff (engine TLA’s higher than 50 degrees) AOM 9-02-40
The XBSOV (cross bleed shut off valve) is automatically commanded to close for what conditions?
In case of bleed leakage, over pressure, engine fire or if a failure condition is identified. AOM 9-02-40
Can an external ground connection be used to supply pressurized air for an engine start?
Yes. AOM 9-02-40
If an external pneumatic power source is being used and is not adjustable, what range should the pressure supply be in?
Between 32 psi and 60 psi. AOM 3-01-35
When is fast cooling enabled on hot days?
When the difference between the cockpit/cabin temperature set point and the cabin/cockpit zone temperature is equal to or higher than 6° C. AOM 9-02-50
When is fast warming enabled on cold days?
When the difference between the cockpit/cabin temperature set point and the cabin/cockpit zone temperature is equal to or higher than 6° C. AOM 9-02-50
What happens to the recirculation fan during fast cooling and fast warming operations?
It automatically sets a higher speed to optimize system performance. AOM 9-02-50
If the air conditioning pack fails what does the PSC automatically do?
It engages the pack backup operational mode and controls cabin and cockpit temperature. AOM 9-02-50
What is ram air ventilation used for?
Non-pressurized flight or for smoke evacuation. AOM 9-02-50
When will the PSC command the emergency RAM air door to open?
In case of loss of the air condition PACK and the PACK backup systems. AOM 9-02-50
How can the emergency RAM air door be manually commanded to open?
Through the DUMP button on the PRESSURIZATION control panel. AOM 9-02-50
How is the Cargo Heating System operated?
Automatically by the PSC. AOM 9-02-55
When is the main cabin door pressurized seal inflated?
After takeoff. AOM 9-02-60
How can the outflow valve be modulated?
Either automatically or manually. AOM 9-02-70
What position are the Negative and Positive Pressure Relief Valves (NPRV and PRV) normally in?
Closed. AOM 9-02-70
What does pushing in the MODE selector button on the PRESSURIZATION panel allow for?
Manual control of the pressurization system through the CABIN ALT knob. AOM 9-02-30
