StacksVerified U.S. regulatory reference

14 CFR §25.457

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Wing flaps, their operating mechanisms, and their supporting structures must be designed for critical loads occurring in the conditions prescribed in § 25.345, accounting for the loads occurring during transition from one flap position and airspeed to another.