Pratt & Whitney (P&W) and Boeing are asking the Federal Aviation Administration for more time and for regulatory exemptions as part of design changes they are making to PW4000-112 turbofans and the ...

WASHINGTON (Reuters) - Damage to a fan blade on an engine that failed on a United Airlines Boeing 777 flight is consistent with metal fatigue, based on a preliminary assessment, the chairman of the ...

Boeing and enginemaker Pratt & Whitney have requested additional time and exemptions from the Federal Aviation Administration (FAA) for redesigns related to the PW4000-112 turbofans onboard select ...