Regulacje i polityka gospodarcza · 06/10/1999
Boeing Proposes Supersession of Airworthiness Directive for 727 Series Airplanes
Boeing is proposing to replace an existing airworthiness directive for certain 727 series airplanes with a new directive that eliminates repetitive inspections for rear spar web cracking and fuel leakage, and instead requires an optional modification to terminate those inspections.