StacksVerified U.S. regulatory reference

14 CFR §25.1025

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)Each oil shutoff must meet the requirements of § 25.1189.
  2. (b)The closing of oil shutoff means may not prevent propeller feathering.
  3. (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.