Boeing Proposes Update to Airworthiness Directive for 747-400, 757, 767, and 777 Series Airplanes

Summary

Boeing is proposing an update to an existing airworthiness directive for certain Boeing models, requiring a revision to the Airplane Flight Manual and/or installation of a placard to address errors in the glide slope deviation provided by ILS receivers, in order to prevent landing errors outside the runway boundary.