Brazil ANAC 2024-02-02

Requires a revision of the airplane flight manual to incorporate changes surrounding approach speed, increased Vref landing performance, and flight controls limitations. This AD was prompted by the report of a hard landing event with substantial damage to the airplane, in which the AOA Limiter was engaged in the final approach phase in unstable air conditions and remained engaged until the aircraft´s touchdown on the runway. If the AOA Limiter remains active during the final approach phase when the landing flare is commanded, pitch response may be reduced during a critical phase of flight near the ground, and in unstable air conditions, it may result in a high rate of descent landing and the possible consequent catastrophic structural damage of the airplane on landing.