EASA AD 2018-0189
Navigation — Back Up Speed Scale / Aircraft Flight Manual — Amendment
EASA Airworthiness Directive 2018-0189 is an amendment applicable to Airbus A318, A319, A320, and A321 aeroplanes. It addresses the reliability of airspeed information displayed on the Primary Flight Display under extreme icing conditions by mandating amendments to the Aircraft Flight Manual related to the Back-Up Speed Scale function. This directive ensures flight crews receive accurate operational procedures to manage potential erroneous airspeed indications caused by angle of attack sensor blockages.