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Federal regulations · Through 2026-08-25 · Newer source version available

14 CFR 27.831: Ventilation.

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Where this section sits in the code
  1. Title 14—Aeronautics and Space
  2. CHAPTER I—FEDERAL AVIATION ADMINISTRATION, DEPARTMENT OF TRANSPORTATION
  3. SUBCHAPTER C—AIRCRAFT
  4. PART 27—AIRWORTHINESS STANDARDS: NORMAL CATEGORY ROTORCRAFT
  5. Subpart D—Design and Construction

(a) The ventilating system for the pilot and passenger compartments must be designed to prevent the presence of excessive quantities of fuel fumes and carbon monoxide.

(b) The concentration of carbon monoxide may not exceed one part in 20,000 parts of air during forward flight or hovering in still air. If the concentration exceeds this value under other conditions, there must be suitable operating restrictions.

Collected 2026-08-27T02:24:20Z. Source file · JSON

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