AI.II.E.K1lFAA-S-ACS-25 · Nov 2023Knowledge

l. Oxygen system

ACS element text (the applicant demonstrates understanding of)

Airplane systems, including: l. Oxygen system

Bottom line

An oxygen system that delivers oxygen mixed or diluted with air in order to maintain a constant oxygen partial pressure as the altitude changes. Oxygen system servicing should be accomplished only when the aircraft is located outside of the hangars. Oxygen under pressure creates spontaneous results when brought in contact with petroleum products.

Key numbers

Key numbers for l. Oxygen system
NumberWhat it means
two persons for aircraft with permanently installed oxygen tanksServicing crew

FAA references

  1. PHAK Glossary (p. G-10) — FAA-H-8083-25C (2023)
  2. PHAK ch. 7 (pp. 7-39–7-40) — FAA-H-8083-25C (2023)
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