CA.VIII.B.K1FAA-S-ACS-7B · Nov 2023Knowledge
Fundamental concepts of aircraft pressurization system, including failure modes.
Fundamental concepts of aircraft pressurization system, including failure modes.
Bottom line
A cabin pressure regulator, an outflow valve, and a safety valve are used to accomplish these functions. Regardless of the type of decompression, recognition of the decompression, awareness of cabin altitude/cabin pressurization warning systems, or recognition of hypoxia symptoms are essential for a safe recovery.
Key numbers
| Number | What it means |
|---|---|
| below 10,000 ft MSL if supplemental oxygen is not available | Emergency descent |
| throughout climb and cruise above 25,000 ft MSL | Monitor cabin press |
| symptom increase lasting 15–60 seconds after extreme hypoxia exposure | Oxygen reaction |
FAA references
- PHAK ch. 7 (pp. 7-35–7-36) — FAA-H-8083-25C (2023)
- AC 61-107, para. 2-11 — AC No: 61-107B
- AC 61-107, para. 2-12 — AC No: 61-107B
- RMH ch. 7 (p. 7-1) — FAA-H-8083-2A
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