§121.239. Oil valves.
14 C.F.R. § 121.239
Each oil valve must—
Comply with § 121.257;
Have positive stops or suitable index provisions in the “on” and “off” positions; and
Be supported so that loads resulting from its operation or from accelerated flight conditions are not transmitted to the lines attached to the valve.
The closing of an oil shutoff means must not prevent feathering the propeller, unless equivalent safety provisions are incorporated.
Notes, amendments, and revision history
Source
Source: Docket 6258, 29 FR 19202, Dec. 31, 1964, unless otherwise noted.
Authority
Authority: 49 U.S.C. 106(f), 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).