AMC1 27.631 Bird strike

• ED Decision 2021/016/R found in: CS-27 Amdt 10 - Small Rotorcraft (Feb 2023)

AMC1 27.631 Bird strike ED Decision 2021/016/R (a) To demonstrate the remaining capability of the rotorcraft after a single bird strike, the applicant should evaluate the parts of the rotorcraft as follows: (1) the windshield directly in front of the occupants and its supporting frame should be capable of withstanding a bird strike without penetration; and (2) any systems and equipment (including their controls) that are essential to ensure a safe landing and are installed near the windshield and its supporting frame should remain operative in case of shock loads resulting from a bird strike. Note: the capability to withstand multiple bird strikes is only evaluated for engines as specified under CS-E 800 ‘Bird Strike and Ingestion’. (b) For the demonstration under point (a), the altitude range within which the velocity VH is evaluated should be defined and should not exceed 2 438 m (8 000 ft). [Amdt 27/9] AMC1 27.631 Bird strike ED Decision 2021/016/R (a) To demonstrate the remaining capability of the rotorcraft after a single bird strike, the applicant should evaluate the parts of the rotorcraft as follows: (1) the windshield directly in front of the occupants and its supporting frame should be capable of withstanding a bird strike without penetration; and (2) any systems and equipment (including their controls) that are essential to ensure a safe landing and are installed near the windshield and its supporting frame should remain operative in case of shock loads resulting from a bird strike. Note: the capability to withstand multiple bird strikes is only evaluated for engines as specified under CS-E 800 ‘Bird Strike and Ingestion’. (b) For the demonstration under point (a), the altitude range within which the velocity VH is evaluated should be defined and should not exceed 2 438 m (8 000 ft). [Amdt 27/9]