Dozens of Boeing 777 planes after engine failure over Denver

Dozens of Boeing 777 planes after engine failure over Denver
A Boeing 777 jet suffered engine failure on Saturday.
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Daily US Times: Airlines in the US, Japan and South Korea have grounded dozens of Boeing 777 aircraft after one of the jets suffered engine failure on Saturday, sending debris crashing down over Denver.

On Sunday, Boeing (BA) recommended that airlines stop flying versions of the aircraft that are equipped with Pratt & Whitney 4000-112 engines while United States authorities investigate the Denver incident.

Boeing said that 69 of the 777 jets that are in service are powered by the engine, while 59 such aircraft are in storage.

United Airlines (UAL), Asiana Airlines, All Nippon Airways, Korean Air and Japan Airlines (JAPSY) all use Boeing 777s that feature Pratt & Whitney 4000 engines.

The groundings come after an United-operated Beoing 777 plane engine failed Saturday, just minutes after the Honolulu-bound flight took off from Denver International Airport.

As United Flight 328 returned to the Denver airport, it dropped more engine debris through the roofs of homes and into yards.

According to the US National Transportation Safety Board (NTSB), an initial examination of the Pratt & Whitney PW4077 engine from that flight showed that two fan blades were fractured.

NTSB said that the remaining blades exhibited damage “to the tips and leading edges.”

The findings are preliminary, but they were still enough to spur some airlines to pull planes that use those types of engines from service.

The NTSB said that it will examine the engine, airline and videos and photos taken by passengers on board the flight, along with the flight data and cockpit voice recorders.

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