Transport i infrastruktura · 21/12/1994
Boeing Proposes New Airworthiness Directive for 747 Series Airplanes Equipped With Pratt & Whitney JT9D Engines
Boeing is proposing a new airworthiness directive to modify the nacelle strut and wing structure of certain 747 series airplanes to improve fail-safe capability and reduce reliance on inspections, aiming to prevent engine failure and subsequent loss.