(Bloomberg) — U.S. aviation regulators released strict new inspection standards on Tuesday to ensure that Pratt & Whitney engines such as the one that broke apart on Saturday over a Denver suburb are protected.
The airworthiness directive of the Federal Aviation Administration allows the titanium fan blades on some Pratt & Whitney engines to be inspected immediately before they can return to service. A division of Raytheon Technologies Corp. is Pratt & Whitney.
A violent failure of a fan blade on one of two engines mounted on a United Airlines aircraft, a Boeing Co. 777-200, prompted the action. It ripped off another blade and the front frame of the engine after the 40.5-inch (103-centimeter) blade broke, pelting a suburban community with metal and other debris.
No one on the ground was injured and the plane landed safely.