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Regulators probe engine blow-outs as older Boeing 777s suspended

Read more about Regulators probe engine blow-outs as older Boeing 777s suspended on Business Standard. Raytheon-owned Pratt & Whitney said it was coordinating with regulators to review inspection protocols

Boeing recommends grounding 777 aircraft after plane makes emergency landing in Denver

When jet engines fall apart, aircraft must stay intact

news When jet engines fall apart, aircraft must stay intact dw.com 22/02/2021 Andreas Spaeth Two jet engine explosions in one day point to potential dangers looming underneath the wings of aircraft. But Andreas Spaeth says planes must be capable of withstanding such damage. © picture-alliance/dpa Jet engines undergo regular checks by operators The long fan blades are made of titanium, the hardest metal available. The funnel-like blades let as much air as possible as efficiently as possible into the turbine where it gets heated up, creating propulsion. In some engine types, the fan blades are hollow inside with a view to saving weight. The tips of the fan blades, usually between 22 and 38 per engine depending on the class of aircraft, rotate with supersonic speeds inside the inlets. Especially on takeoff, such huge high-tech propulsion devices for wide-body aircraft run at full throttle to lift off aircraft weights of 250 tons or more.

Boeing 777s should be grounded united airlines plane emergency landing denver

URL copied Boeing: 777s with engine that blew apart should be grounded Boeing has recommended that airlines ground all 777s with the type of engine that blew apart after takeoff from Denver this weekend, and most carriers that fly those planes said they would temporarily pull them from service. The U.S. Federal Aviation Administration ordered United Airlines to step up inspections of the aircraft after one of its flights made an emergency landing at Denver International Airport Saturday as pieces of the casing of the engine, a Pratt & Whitney PW4000, rained down on suburban neighborhoods. None of the 231 passengers or 10 crew were hurt, and the flight landed safely, authorities said. United is among the carriers that has grounded the planes.

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