StacksVerified U.S. regulatory reference

14 CFR §25.685

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
  1. (a)Each detail of each control system must be designed and installed to prevent jamming, chafing, and interference from cargo, passengers, loose objects, or the freezing of moisture.
  2. (b)There must be means in the cockpit to prevent the entry of foreign objects into places where they would jam the system.
  3. (c)There must be means to prevent the slapping of cables or tubes against other parts.
  4. (d)Sections 25.689 and 25.693 apply to cable systems and joints.