AA.I.A.K8FAA-S-ACS-11A · Nov 2023Knowledge
Pneumatic and environmental systems–heating, cooling, ventilation, oxygen, pressurizati...
Pneumatic and environmental systems–heating, cooling, ventilation, oxygen, pressurization, supply for ice protection systems, controls, indicators, and regulating devices.
Bottom line
Compressed air tapped from the compressor stages of a turbine engine by use of ducts and tubing. Bleed air can be used for deice, anti-ice, cabin pressurization, heating, and cooling systems. A combustion heater is best described as a small furnace that burns gasoline to produce heated air for occupant comfort and windshield defogging.
Key numbers
| Number | What it means |
|---|---|
| at least 15 seconds of outside air circulation | Cool-down, in flight |
| ventilation fan operated for at least 2 minutes | Cool-down, ground |
FAA references
- AFH Glossary (p. G-3) — FAA-H-8083-3C
- AFH ch. 13 (p. 13-8) — FAA-H-8083-3C
- AFH ch. 13 (p. 13-9) — FAA-H-8083-3C
- RMH ch. 7 (p. 7-1) — FAA-H-8083-2A
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