Each auxiliary lifting surface must be designed to withstand--
(a) The critical flight loads in Sec. Sec. 29.337 through 29.341, and 29.351;
(b) the applicable ground loads in Sec. Sec. 29.235, 29.471 through 29.485, 29.493, 29.505, and 29.521; and
(c) Any other critical condition expected in normal operation.
Emergency Landing Conditions