CA.IX.C.K4FAA-S-ACS-7B · Nov 2023Knowledge
Any other system specific to the aircraft (e.g., supplemental oxygen, deicing).
Any other system specific to the aircraft (e.g., supplemental oxygen, deicing).
Bottom line
The presence of anti-icing and deicing equipment, even though it may appear elaborate and complete, does not necessarily mean that the airplane is approved for flight in icing conditions.
Key numbers
| Number | What it means |
|---|---|
| after 30 minutes exposure to cabin pressure altitudes between 12,500 and 14,000 feet | Crew O2 (12,500–14,000) |
| immediately upon exposure to cabin pressure altitudes above 14,000 feet | Crew O2 (above 14,000) |
| every aircraft occupant above 15,000 feet cabin pressure altitude | All occupants (above 15,000) |
| above 10,000 feet cabin altitude during the day and above 5,000 feet at night | Recommended O2 |
| 1,800 to 2,200 psi | O2 storage pressure |
FAA references
- AFH ch. 13 (pp. 13-8–13-9) — FAA-H-8083-3C
- PHAK ch. 7 (p. 7-37) — FAA-H-8083-25C (2023)
- PHAK ch. 7 (p. 7-39) — FAA-H-8083-25C (2023)
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