Regulacje i polityka gospodarcza · 06/10/2015

The Boeing Company Proposes New Airworthiness Directive for Certain 747 Models to Address Fatigue Cracking

The Boeing Company is proposing a new airworthiness directive (AD) for specific 747 models to address widespread fatigue damage (WFD) in the upper deck floor beams, which could lead to large deflection or deformation if left undetected.