B. Air Systems Flashcards
What are the two sources of bleed
Bleed air
What is the purpose of the bleed air valves?
These valves
What are the uses of bleed air on the aircraft?
Air conditioning/heat
What sources can supply bleed air?
Engines, APU and external air (ground only)
What happens if the temperature or pressure of the bleed air system becomes excessive?
An automatic bleed air trip protection will activate, closing the respective bleed valve.
What is the purpose of the isolation valve?
The isolation valve allows for the connection or isolation of one side of the bleed system from the other.
Under normal conditions, how is the air system configured?
Normally, the left engine supplies air to the left side of the air system and the right engine supplies air to the right side of the air system.
What side of the isolation valve is the API bleed air line?
The APU feeds the left side of the air system. Therefore, the isolation valve must be opened to supply APU air to the right side of the system (e.g., when starting the right engine).
What side of the isolation valve is the external air input?
The external
You are attempting to dispatch an aircraft
You would want
What sources are available for air conditioning
The aircraft bleed air
What is the purpose of the ram air inlets on the underside of the aircraft?
These supply
Describe the cooling cycle of the PACK.
Bleed air is fed to the PACK
