Regulations last checked for updates: May 03, 2025

Title 14 - Aeronautics and Space last revised: Apr 02, 2025
§ 125.179 - Fuel system independence.

(a) Each airplane fuel system must be arranged so that the failure of any one component does not result in the irrecoverable loss of power of more than one engine.

(b) A separate fuel tank need not be provided for each engine if the certificate holder shows that the fuel system incorporates features that provide equivalent safety.

authority: 49 U.S.C. 106(f), 106(g), 40113, 44701-44702, 44705, 44710-44711, 44713, 44716-44717, 44722
source: Docket 19779, 45 FR 67235, Oct. 9, 1980, unless otherwise noted.
cite as: 14 CFR 125.179