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The Nationwide Transportation Security Board (NTSB) issued an pressing security advice Wednesday to change jet engines on Boeing’s 737 Max airplanes to stop smoke from getting into the cockpit or cabin in sure eventualities.
The warning comes after two incidents involving Southwest Airways planes outfitted with CFM Worldwide LEAP-1B engines that skilled hen strikes in 2023.
The NTSB mentioned that these CFM engines have a security function, known as a load discount machine, that may inadvertently injury the oil system of the engines as soon as it prompts after a hen strike. The injury may end up in smoke forming from scorching oil launched into the engine and getting into the air flow system and in the end the cockpit or passenger cabin.
The NTSB investigated an incident in December 2023 involving a Southwest Airways aircraft that struck a hen whereas taking off from New Orleans. The aircraft landed shortly after “acrid white smoke” stuffed the cockpit and was so thick that the captain mentioned it was onerous to see the instrument panel.
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A closeup of an engine of a Boeing 737 Max airplane. (REUTERS/Carlo Allegri/File / Reuters Photographs)
One other incident 9 months earlier involving comparable engine injury occurred on one other Southwest flight from Havana, Cuba, after birds had been ingested into an engine shortly after takeoff, leading to smoke filling the cabin.
In each instances, the flights landed safely, and nobody was injured.
A Boeing 737 Max plane throughout a show on the Farnborough Worldwide Airshow, in Farnborough, Britain, July 20, 2022. (REUTERS/Peter Cziborra / Reuters Photographs)
The NTSB additionally advisable evaluating the potential for a similar situation with CFM’s LEAP-1A and LEAP-1C engines, that are used on some Airbus A320neo planes and C919 jets made by the Industrial Plane Company of China.
CFM is owned by GE Aerospace and Safran Plane Engines.
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The Federal Aviation Administration and Boeing each mentioned they agreed with the NTSB suggestions and have already warned airways and pilots about the issue.
A Boeing 737 Max is displayed through the Worldwide Paris Air Present on the Paris Le Bourget Airport, on June 20, 2023. (Geoffroy van der Hasselt/AFP by way of Getty Pictures / Getty Pictures)
“We suggested operators to guage their procedures and crew coaching to make sure they handle this potential situation,” the FAA mentioned. “When the engine producer develops a everlasting mitigation, we would require operators to implement it inside an acceptable timeframe.”
| Ticker | Safety | Final | Change | Change % |
|---|---|---|---|---|
| BA | THE BOEING CO. | 197.73 | -2.53 | -1.26% |
| GE | GE AEROSPACE | 235.92 | +0.25 | +0.11% |
| SAFRY | SAFRAN SA | 75.03 | +0.83 | +1.12% |
| LUV | SOUTHWEST AIRLINES CO. | 31.17 | -0.25 | -0.80% |
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Boeing mentioned that CFM and Boeing “have been engaged on a software program design replace.”
Reuters contributed to this report.