Summary
This document proposes to adopt a new airworthiness directive (AD) that would apply to certain H.B. Flugtechnik GmbH (Flugtechnik) 23/2400 sailplanes. The proposed action would require inspecting the rudder bearing support bracket for cracks, replacing the bracket if cracked, and modifying the bracket with a third bolt if no cracks are found. Cracks found in the rudder bearing support brackets during routine inspections prompted the proposed action. The actions specified by the proposed AD are intended to prevent cracks in the rudder bearing support bracket, which could cause loss of control of the rudder and possible loss of control of the sailplane.