Transport i lotnictwo · 23/07/1997

Grob Luft- und Raumfahrt Issues Airworthiness Directive for Burkhart Grob Model G 109 Sailplanes

The Federal Aviation Administration (FAA) has issued an airworthiness directive requiring Burkhart Grob, Luft- und Raumfahrt to install a damper and new bell crank lever on the rudder of its Model G 109 sailplanes to address flutter issues and prevent rudder vibration, which could lead to structural damage and loss of control.