“I was sad to hear that one of the fan blades failed, but really impressed with how everything worked after that,” said Robert Kielb, a professor at Duke University’s school of engineering. “If a blade does fail, the planes are designed to fly on one engine.”
With the 777s flying those engines now grounded, Mr. Kielb said Pratt would need to take a closer look. “They probably need to inspect the fan blades better,” he said. Also of concern was the fact that the cowling the circular piece on the front of the engine fell from the sky.
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Engine-maker under scrutiny after series of aircraft mishaps - Puget Sound Business Journal
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FAA orders United to inspect Boeing 777s after emergency - New Delhi Times - India s Only International Newspaper
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EXPLAINER: Why a Plane s Engine Exploded Over Denver A Boeing 777 operated by United Airlines had to make an emergency landing in Denver after one of its engines blew apart By David Koenig •
Updated on February 22, 2021 at 10:32 pm
NBCUniversal Media, LLC
The investigation into an engine explosion on a jetliner taking off from Denver is focusing on a fan blade that appeared to be weakened by wear and tear, a development reminiscent of a fatal failure on board another plane in 2018.
These and other recent engine failures raise questions over long-held assumptions about how long fan blades last and whether they are being inspected often enough.