Summary
This document proposes the adoption of a new airworthiness directive (AD) that is applicable to certain Beech Model BAe 125-800A and Model Hawker 800 airplanes. This proposal would require modification of the airframe structure in the lower area of the fuselage aft of the wing rear spar. For certain airplanes, this proposal would also require a functional test to determine if a particular bolt fouls the flap control system. This proposal is prompted by reports of restricted control of the aileron due to water accumulation that froze in the area around an aileron pulley located in the lower area of the fuselage aft of the wing rear spar. The actions specified by the proposed AD are intended to prevent such water accumulation, which could freeze and result in restricted control of the ailerons; subsequently, this could reduce the pilot's ability to initiate roll control during critical phases of flight.