Each reversing system must be designed so that—
(a) No unsafe condition will result during normal operation of the system; and
(b) The airplane is capable of continued safe flight and landing after any single failure, likely combination of failures, or malfunction of the reversing system.
source: Doc. No. FAA-2015-1621, Amdt. 23-64, 81 FR 96689, Dec. 30, 2016, unless otherwise noted.
cite as: 14 CFR 23.2420