Text in force at 23-63: from 23-51, effective 12 Mar 1996.
[Compliance with Sec. 23.1041 must be shown for the climb (or, for multiengine airplanes with negative one-engine-inoperative rates of climb, the descent) stage of flight. The airplane must be flown in the configurations, at the speeds and following the procedures recommended in the Airplane Flight Manual, that correspond to the applicable performance requirements that are critical to cooling.]
61 FR 5137 · Source