787 et le questionnement sur ses réparations
Posté : lun. 24 oct. 2011, 10:41
Boeing Dreamliner Composite Repairs Questioned by U.S. Watchdog
Boeing Co. (BA)’s new 787 Dreamliner, set to fly its first paying passengers next week, faces four “safety-related concerns” about repairs to the composites used for the fuselage and wings, a U.S. agency said.
A review of the Dreamliner, the first airliner built with carbon-fiber reinforced composite plastics instead of metal, was released Oct. 20 by the U.S. Government Accountability Office. The GAO identified four concerns: limited information on the behavior of airplane composite structures; technical issues with the materials’ unique properties; standards for repairs; and training and awareness.
The U.S. Federal Aviation Administration certified the 787 in August following 20 months of flight tests, after requiring that Boeing take extra steps to demonstrate its safety. The GAO was asked by three members of Congress to review the FAA’s certification process and planned oversight once the model enters service, and consulted experts on repair and maintenance.
“None of the experts believed these concerns posed extraordinary safety risks or were insurmountable,” the GAO said in its report. Still, while the FAA is taking action to address the matters, “until these composite airplanes enter service, it is unclear if these actions will be sufficient,” the report said.
The 250-seat Dreamliner uses the lighter-weight composites, new engines and the first all-electric system to help it fly farther with less fuel.
La suite de l'article:
http://www.bloomberg.com/news/2011-10-2 ... gency.html" onclick="window.open(this.href);return false;
Boeing Co. (BA)’s new 787 Dreamliner, set to fly its first paying passengers next week, faces four “safety-related concerns” about repairs to the composites used for the fuselage and wings, a U.S. agency said.
A review of the Dreamliner, the first airliner built with carbon-fiber reinforced composite plastics instead of metal, was released Oct. 20 by the U.S. Government Accountability Office. The GAO identified four concerns: limited information on the behavior of airplane composite structures; technical issues with the materials’ unique properties; standards for repairs; and training and awareness.
The U.S. Federal Aviation Administration certified the 787 in August following 20 months of flight tests, after requiring that Boeing take extra steps to demonstrate its safety. The GAO was asked by three members of Congress to review the FAA’s certification process and planned oversight once the model enters service, and consulted experts on repair and maintenance.
“None of the experts believed these concerns posed extraordinary safety risks or were insurmountable,” the GAO said in its report. Still, while the FAA is taking action to address the matters, “until these composite airplanes enter service, it is unclear if these actions will be sufficient,” the report said.
The 250-seat Dreamliner uses the lighter-weight composites, new engines and the first all-electric system to help it fly farther with less fuel.
La suite de l'article:
http://www.bloomberg.com/news/2011-10-2 ... gency.html" onclick="window.open(this.href);return false;
