U. Boeing safety board wishes to redesign section 737 NG after a fatal South West accident

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WASHINGTON (Reuters) – The National Transport Safety Board asked on Tuesday Tuesday at Boeing Co (Tuesday)BA.N(b) redesign the bovine structure on each of the 737 planets NG and retrofit the existing planes following an incident in April 2018 where a Southwest Airlines woman was killed (LUV.N(e) an aircraft due to an engine failure due to a broken fan blade.

PHOTO FILE: South West commercial airlines were taxed at McCarran International Airport in Las Vegas, November 19, 2014. REUTERS / Mike Blake /

The board said that the US Federal Aviation Administration should require Boeing to determine the fan wind impact location or the locations of the engine fan case and redesign the structure to minimize catastrophic potential. The board did not blame Boeing's analysis in the mid-1990s when he developed the plane.

The NTSB was investigating the 2016 engine failure on the other South West 737-700 when the fatal incident occurred. The events in both flights were a “fan out” event (FBO).

Boeing said on Tuesday that she will work to implement improvements that address the NTSB's safety recommendations, including improvements to the “inlet road designs and fans to increase their ability to run against fans of the NTSB”. standing machines.

The FAA did not comment immediately.

The Chairman of the NTSB, Robert Sumwalt, recognized that retrofitting could be expensive.

“This accident highlights the vulnerability of the fan case when separated by the fan blade at an unexpected location,” said Sumwalt after the hearing.

The NTSB did not call on the planes to be established and noted that airlines are inspecting the fan blades on a more regular basis.

South West spokesperson Chris Mainz said the airline would review NTSB's proposals and work "with manufacturers to prevent a similar event happening again."

Jennifer Riordan from New Mexico, Vice President Wells Fargo 43 years of age and mother of two, was killed after the engine exploded and demolished a plane window on a 1380 Flight. She was the first person killed in a passenger airline accident since 2009. .

The 20-minute accident occurred into the flight when a fan blade broke a fatigue chop on a Boeing jet 737-700 powered two engines CFM56-7B International CFM after resigning LaGuardia Airport in New York. The aircraft, which is connected to Dallas, diverted to Philadelphia International Airport. Eight of the 144 passengers received minor injuries.

The board noted that 14,600 CFM56-7B engines are in service with 356,000 fan blades on Boeing planes, with 400 million flights over twenty years and two reporting engine failures.

Tammie Jo Shults, the flight captain, told her book “Nerves of Steel” published last month that the engine explosion felt “because we had Mack's truck.” She said the 737-700 was rolled to left and pulled into diving, but she and the co-pilot were able to level the plane.

The engine on the left side of the plane said that there were pieces of metal when it blew apart, breaking a window and creating a fast cabin depression, the NTSB said. In 2018, the NTSB said that two of Riordan's passengers, who had been placed in their seats, eventually pulled back inside the plane.

CFM International, the engine manufacturer, is a transatlantic joint venture between General Electric Co (GE.N) and the French Safran SA (SAF.PA).

(This story corrects the year of the episode in the first paragraph to 2018) t

Reporting by David Shepardson; Additional reporting by Tracy Rucinski Editing by Gerry Doyle, Alex Richardson and Dan Grebler

Our Standards:The principles of Thomson Reuters Trust.

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