The Boeing Company Proposes Update to Airworthiness Directive for 737-300, -400, and -500 Series Airplanes

Summary

The Boeing Company proposes to update its Airworthiness Directive (AD) 2011-23-05 for certain 737-300, -400, and -500 series airplanes to address widespread fatigue damage (WFD) in the fuselage frames and frame reinforcements, which could compromise the airplane's structural integrity.