CS 27.802 Emergency Flotation

• ED Decision 2018/007/R found in: CS-27 Amdt 10 - Small Rotorcraft (Feb 2023)

CS 27.802 Emergency Flotation ED Decision 2018/007/R If operating rules allow, and only certification for emergency flotation equipment is requested by the applicant, the rotorcraft must be designed as follows: (a) The rotorcraft must be equipped with an approved emergency flotation system. (b) The flotation units of the emergency flotation system, and their attachments to the rotorcraft, must comply with [CS 27.563](#_DxCrossRefBm8893879). (c) The rotorcraft must be shown to resist capsize in the sea conditions selected by the applicant. The probability of capsizing in a 5-minute exposure to the sea conditions must be demonstrated to be less than or equal to 10.0 % with a fully serviceable emergency flotation system, with 95 % confidence. No demonstration of capsize resistance is required for the case of the critical float compartment having failed. Allowances must be made for probable structural damage and leakage. [Amdt No: 27/5] CS 27.802 Emergency Flotation ED Decision 2018/007/R If operating rules allow, and only certification for emergency flotation equipment is requested by the applicant, the rotorcraft must be designed as follows: (a) The rotorcraft must be equipped with an approved emergency flotation system. (b) The flotation units of the emergency flotation system, and their attachments to the rotorcraft, must comply with [CS 27.563](#_DxCrossRefBm472493310). (c) The rotorcraft must be shown to resist capsize in the sea conditions selected by the applicant. The probability of capsizing in a 5-minute exposure to the sea conditions must be demonstrated to be less than or equal to 10.0 % with a fully serviceable emergency flotation system, with 95 % confidence. No demonstration of capsize resistance is required for the case of the critical float compartment having failed. Allowances must be made for probable structural damage and leakage. [Amdt No: 27/5]