Airworthiness Directive · Amendment 39-9775 · BAE Systems (Operations) Limited Airplanes
BAE Systems (Operations) Limited Airplanes
This AD applies to BAE Systems (Operations) Limited HS 748 Series 2A, HS 748 Series 2B.
The models as the FAA's AD index lists them. The serial ranges, installed parts and exceptions are in the AD itself: read it at the FAA.
This amendment adopts a new airworthiness directive (AD), applicable to all Jetstream Model HS 748 series airplanes. This action requires a one-time inspection to ensure proper operation, positioning, and lubrication of the aileron, rudder, and elevator cable tensioners; gust lock levers; and cable pressure seals. It also requires a revision to the maintenance program to include these inspections on a repetitive basis. This amendment is prompted by reports of seizure and consequent jamming of the flight control cable tension regulators and gust lock mechanisms. The actions specified in this AD are intended to prevent the flight control cable tension regulators from jamming, which could result in the inability to achieve full deflection of the associated flight control surfaces, and lead to reduced controllability of the airplane.
