Definition
A cockpit control that regulates the flow of outside air into the cabin through the airplane's ventilation system. Closing this control during a cabin fire helps reduce the supply of fresh air feeding the flames.
Plain English
The control the pilot uses to open or close the flow of outside air coming into the cabin. Shutting it off limits the fresh air that a fire needs to keep burning.
Context Anchor
Seen in cabin fire emergency procedures, especially where the pilot is told to reduce or stop airflow into the cabin.
Why Pilots Care
Using it correctly helps remove smoke that reduces visibility and makes breathing difficult.
Grounding Statement
If smoke or fire is in the cabin, the cabin air control is one of the ways the pilot manages the air entering that space.
Intuition Check
Do not read “control” here as a flight control that moves the airplane. Here it means a cabin air knob or lever that controls airflow into the cabin.
Example Sentence 1
After noticing smoke in the cabin, the pilot closed the cabin air control to limit fresh airflow to the fire.
Example Sentence 2
After extinguishing the fire, the pilot adjusted the cabin air control to improve ventilation.