14 CFR 29.993
§ 29.993 Fuel system lines and fittings.
United States · 14 CFR — Aeronautics and Space · Status: effective
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- Citation
- 14 CFR 29.993, § 29.993 Fuel system lines and fittings, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/54864
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Full text
(a) Each fuel line must be installed and supported to prevent excessive vibration and to withstand loads due to fuel pressure, valve actuation, and accelerated flight conditions.
(b) Each fuel line connected to components of the rotorcraft between which relative motion could exist must have provisions for flexibility.
(c) Each flexible connection in fuel lines that may be under pressure or subjected to axial loading must use flexible hose assemblies.
(d) Flexible hose must be approved.
(e) No flexible hose that might be adversely affected by high temperatures may be used where excessive temperatures will exist during operation or after engine shutdown.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.