14 C.F.R. § 29.391 General.
Title 14 - Aeronautics and Space
Each auxiliary rotor, each fixed or movable stabilizing or control surface, and each system operating any flight control must meet the requirements of §§29.395 through 29.399, 29.411, and 29.427. [Amdt. 29–26, 55 FR 8002, Mar. 6, 1990, as amended by Amdt. 29–41, 62 FR 46173, Aug. 29, 1997]
Title 14: Aeronautics and Space
PART 29—AIRWORTHINESS STANDARDS: TRANSPORT CATEGORY ROTORCRAFT
Subpart C—Strength Requirements
Control Surface and System Loads
§ 29.391 General.