The Pratt & Whitney PW4084-powered Boeing 777 was granted US Federal Aviation Administration approval for 180min extended-range twin-engine operations (ETOPS) before service-entry with launch customer United Airlines. This significant milestone was achieved following a 1,000-cycle validation programme, including eight 180min single-engine diversion tests.
You have reached your limit of free articles for this period. Register for a FREE account to read this article and benefit from: