EASA AD 2017-0237R1
Flight Controls — Trimmable Horizontal Stabilizer Actuator — Modification
EASA Airworthiness Directive 2017-0237R1 is a regulatory update addressing the trimmable horizontal stabilizer actuator (THSA) on Airbus A318, A319, A320, and A321 aircraft. It focuses on modifications related to the Electrical Load Sensing Device (ELSD) installation and activation to ensure proper detection of primary load path failures in the THSA. This directive applies to all manufacturer serial numbers of the specified Airbus A320 Family models.