Supercooled large drop icing conditions.

CFR · 2024-01-01 · US · Title 14

(a) If certification for flight in icing conditions is sought, in addition to the requirements of § 25.1419, an airplane with a maximum takeoff weight less than 60,000 pounds or with reversible flight controls must be capable of operating in accordance with paragraphs (a)(1), (2), or (3), of this section. (1) Operating safely after encountering the icing conditions defined in Appendix O of this part: (i) The airplane must have a means to detect that it is operating in Appendix O icing conditions; and (ii) Following detection of Appendix O icing conditions, the airplane must be capable of operating safely while exiting all icing conditions. (2) Operating safely in a portion of the icing conditions defined in Appendix O of this part as selected by the applicant: (i) The airplane must have a means to detect that it is operating in conditions that exceed the selected portion of Appendix O icing conditions; and (ii) Following detection, the airplane must be capable of operating safely while exiting all icing conditions. (3) Operating safely in the icing conditions defined in Appendix O of this part. (b) To establish that the airplane can operate safely as required in paragraph (1) Laboratory dry air or simulated icing tests, or a combination of both, of the components or models of the components. (2) Laboratory dry air or simulated icing tests, or a combination of both, of models of the airplane. (3) Flight tests of the airplane or its components in simulated icing conditions, mea

official document · source cfr-2024 · id 14:§ 25.1420