Business · 21/08/20121 min read

Boeing Proposes Airworthiness Directive to Address Urethane Foam Seals in Commercial Airplanes

The Boeing Company is proposing an airworthiness directive to replace seals made of burned Boeing Material Specification (BMS) 8-39 urethane foam in certain areas of its commercial airplanes, including the 747, 767, and 777 models, to prevent fire or smoke from spreading and to maintain sufficient Halon concentrations in cargo compartments.