14 CFR 29.969

§ 29.969 Fuel tank expansion space.

United States · 14 CFR — Aeronautics and Space · Status: effective

Cite this

Citation: 14 CFR 29.969, § 29.969 Fuel tank expansion space, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/54857
Permanent ID: ys:prov:54857@1
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Full text

Each fuel tank or each group of fuel tanks with interconnected vent systems must have an expansion space of not less than 2 percent of the combined tank capacity. It must be impossible to fill the fuel tank expansion space inadvertently with the rotorcraft in the normal ground attitude.

Legislative history

This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.