Business · 29/09/1997

FAA Issues Airworthiness Directive for de Havilland DHC-8-100, -200, and -300 Series Airplanes

The Federal Aviation Administration (FAA) has issued an airworthiness directive (AD) requiring modification of the attitude and heading reference systems (AHRS) on de Havilland Model DHC-8-100, -200, and -300 series airplanes to prevent simultaneous power loss to both AHRSs, which could result in reduced controllability of the aircraft. The directive follows a report of loss of power to both AHRSs during flight due to a faulty terminal block.