(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), 40103, 40113, 40119, 41706, 42301 preceding note added by Pub. L. 112-95, sec. 412, 126 Stat. 89, 44101, 44701-44702, 44705, 44709-44711, 44713, 44716-44717, 44722, 44729, 44732; 46105; Pub. L. 111-216, 124 Stat. 2348 (
49 U.S.C. 44701 note); Pub. L. 112-95, 126 Stat. 62 (
49 U.S.C. 44732 note); Pub. L. 115-254, 132 Stat. 3186 (
49 U.S.C. 44701 note)
cite as: 14 CFR 121.281