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Metal fatigue seen as trigger of engine failure near Denver

The Japan Times

The jet engine fan blade that broke loose on a United Airlines flight Saturday near Denver, triggering a massive failure leading to the grounding of dozens of Boeing Co. 777s, resulted from metal fatigue, according to National Transportation Safety Board Chairman Robert Sumwalt. A preliminary examination of fragments found after the episode that sent metal chunks raining on a suburban neighborhood suggested a crack that grew gradually over time prompted the failure, Sumwalt said Monday night. NTSB investigators have begun reviewing maintenance records, interviewing the crew and examining the two crash-proof recorders recovered from the plane, Sumwalt said. They are also reviewing the potential similarity to other failures. "Our mission is to understand not only what happened but why it happened so that we can keep it from happening again," he added.

United engine fire grounds Boeing again - this time it's the 777 jetliner

FOX News

The National Transportation Safety Board on Monday said a maintenance records group will be formed to investigate the Boeing 777 engine's history after it failed on United Airlines flight #328 and erupted into flames shortly after takeoff on Saturday. "Our mission is to understand not only what happened but why it happened so we can keep it from happening again," NTSB chairman Robert Sumwalt said at a Monday evening press conference. Sumwalt emphasized that the investigation is still in its preliminary stages. Asked whether the particular engine had been inspected after another engine failure on a Southwest Airlines flight in 2018, Sumwalt said that was a question that will be answered pending a maintenance group investigation. Boeing has recommended that airlines ground all 777s with the type of engine that blew apart after takeoff from Denver this past 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 on Saturday as pieces of the engine's casing rained on suburban neighborhoods.

Jet engine explosion over Denver rings alarms about shielding

The Japan Times

The midair disintegration of a jet engine over suburban Denver Saturday is the latest in a string of failures that has raised alarm among regulators about debris evading shielding that's supposed to keep broken parts from hitting aircraft. The incident aboard United Airlines flight 328, which showered neighborhoods with metal debris, appears to have been the fifth in five years in which a fan blade broke and destroyed the front section of the engine, according to accident reports and safety experts. That portion of the engine isn't as protected as the core areas around the jet turbines that are built to contain material in a failure. "It's getting more attention with each fan-blade-out event, resulting in these dramatic pictures showing the core of an engine hanging from a wing," said Jeffrey Guzzetti, the former head of accident investigations for the U.S. Federal Aviation Administration. No one was hurt in Saturday's incident and the Boeing Co. 777 safely landed.

Older Boeing 777s grounded following engine explosion over Denver

Boston Herald

A day after the explosion of an engine on United Airlines Flight 328 shortly after takeoff from Denver, older Boeing 777-200 models, like the one involved, were effectively grounded worldwide. The Federal Aviation Administration ordered immediate stepped-up inspections of Boeing 777-200 airplanes equipped with certain Pratt & Whitney engines, as airlines operating such jets in the U.S. and Japan suspended flights. United Airlines grounded 24 similar 777s, while the Japanese aviation regulator ordered all planes equipped with this type of engine to cease flying in Japan until further notice. Boeing followed late Sunday with a statement that "recommended suspending operations of the 69 in-service and 59 in-storage 777s powered by Pratt & Whitney 4000-112 engines until the FAA identifies the appropriate inspection protocol." The speed and decisiveness of the grounding of the jets is spurred by the fact that there have been two previous engine blowouts on similar 777s with the same Pratt & Whitney engine.

Another Boeing flight forced to make emergency landing in Utah after potential engine issues

FOX News

Kirby Klements joins'Fox & amp; Friends' to describe his experience. Another Boeing scare on a plane packed with passengers 30,000 feet in the air. A Delta Air Lines flight from Atlanta to Seattle has been diverted to Salt Lake City out of an abundance of caution on Monday following an indicator warning of a possible problem with one of the Boeing 757's engines. A spokesperson for Delta told FOX News that Flight 2123 "landed safely without incident and taxied to the gate without assistance" at Salt Lake City International Airport. "We are working to reaccomodate customers on a later flight," the airline added.