14 CFR · Part 29
14 CFR § 29.1025
Oil valves.
(a)
Each oil shutoff must meet the requirements of § 29.1189.
(b)
The closing of oil shutoffs may not prevent autorotation.
(c)
Each oil valve must have positive stops or suitable index provisions in the “on” and “off” positions and must be supported so that no loads resulting from its operation or from accelerated flight conditions are transmitted to the lines attached to the valve.
Regulations Referenced
Reflects the eCFR edition current as of September 29, 2026. Retrieved from ecfr.gov on October 16, 2026.
Primary Source