CS 25.1591 Take-off performance information for operations on slippery wet and contaminated runways

• ED Decision 2021/015/R found in: CS-25 Amdt 27 - Large Aeroplanes (Jan 2023)

CS 25.1591 Take-off performance information for operations on slippery wet and contaminated runways ED Decision 2021/015/R (See [AMC 25.1591](#_DxCrossRefBm1709821830)) (a) Supplementary take-off performance information applicable to aeroplanes operated on slippery wet runways and on runways contaminated with standing water, slush, snow, or ice may be furnished at the discretion of the applicant. If supplied, this information must include the expected performance of the aeroplane during take-off on hard-surfaced runways covered by these contaminants. If information on any one or more of the above surface conditions is not supplied, the AFM must contain a statement prohibiting take-off on surfaces that do not meet the minimum friction criteria, or contaminated surface(s) for which information is not supplied. Additional information covering operation on contaminated surfaces other than the above may be provided at the discretion of the applicant. (b) Performance information furnished by the applicant must be contained in the AFM. The information may be used to assist operators in producing operational data and instructions for use by their flight crews when operating with contaminated runway surface conditions. The information may be established by calculation or by testing. (c) The AFM must clearly indicate the conditions and the extent of applicability for each contaminant used in establishing the contaminated runway performance information. It must also state that actual conditions that are different from those used for establishing the contaminated runway performance information may lead to different performance. [Amdt 25/2] [Amdt 25/27]