Text in force at CS25-28: from CS25-27, effective 7 Dec 2021.
(See AMC 25.119) In the landing configuration, the steady gradient of climb may not be less than 3·2%, with the engines at the power or thrust that is available 8 seconds after initiation of movement of the power or thrust controls from the minimum flight idle to the go-around power or thrust setting; and
(a) In non-icing conditions, with a climb speed of VREF determined in accordance with CS 25.125(b)(2)(i); and
(b) In icing conditions with the most critical of the “Landing Ice” accretion(s) defined in Appendices C and O, as applicable, in accordance with CS 25.21(g), and with a climb speed of VREF determined in accordance with CS 25.125(b)(2)(i).
ED Decision 2021/015/R · Source