Regulation & law · 26/09/2007Updated: 10/17/2026 · 1 min read

FAA Adopts New Airworthiness Directive for Boeing 747-100B to 747SP Series Airplanes

The Federal Aviation Administration (FAA) has issued a new airworthiness directive requiring Boeing 747-100B to 747SP series aircraft owners to reconfigure wire bundles and apply sealant to fuel tank fasteners to prevent potential fuel tank explosions or fires in the event of a lightning strike or high-powered short circuit.