14 CFR · Part 25

14 CFR § 25.651

Proof of strength.

(a)

Limit load tests of control surfaces are required. These tests must include the horn or fitting to which the control system is attached.

(b)

Compliance with the special factors requirements of §§ 25.619 through 25.625 and 25.657 for control surface hinges must be shown by analysis or individual load tests.

Regulations Referenced

14 CFR 25.619 14 CFR 25.625 14 CFR 25.657

Reflects the eCFR edition current as of September 29, 2026. Retrieved from ecfr.gov on October 16, 2026.

Primary Source

Official Source (14 CFR · Part 25)