Boeing 737 Max: US security investigators demanded an urgent action on the engine problem on the Boeing Co. 737 Max, which could fill the cockpit and a cabin with smoke.
The recommendation of the National Transport Council comes after two such incidents have been reported in which the aircraft were filled with smoke after large birds hit their engines.
Security Disorder caused smoke
Both incidents included 737 Max aircraft flying by Southwest Airlines and driven Leap-1B engines manufactured by CFM International, which is a common company GE Aerospace and Safran SA. NTSB combined incidents with a failure with one of the key safety features of the engine.
In both cases, damage to the fan blade after the bird blowing activated the safety function known as the load reduction device in the Leap-1B engines. This device is intended to protect the aircraft from strong vibrations that can cause other problems. However, in these incidents, when the system was activated, there was a failure that led to oil leakage to the hot part of the engine, causing smoke to enter the cockpit or cab and pose a potential safety risk.
The Security Agency draws attention to the risk of the crew
Security Agency on Wednesday urged the Federal Air Management to ensure that flight crews were alerted to the problem and emphasize the revisions that Boeing has made to a flight manual that pilots that pilots should do if they encounter any problems reported Bloomberg.
She also asked FAA and other air authorities in the European Union and China to see if the same problem existed in other variants of Leap Engine used by Airbus SE and Commercial Aircraft Corp. from China Ltd., more often known as Comac.
FAA said that both the controller and the Boeing have warned the operators to this problem. “We have recommended operators to evaluate their procedures and training of the crew to ensure that they solve this potential problem.” “When the engine manufacturer develops permanent mitigation, we will require operators to implement it within a suitable time frame,” the press agency said.
The work is working to solve the problem
CFM spokesman said the work was already underway to solve the risk of smoke. This includes updating software for Leap-1B and rating to determine whether other variants have a similar problem.
According to Bloomberg Boeing, he also replied by saying that he was working with CFM to update software and supports NTSB recommendations.
“We are reviewing recommendations and we are currently introducing alleviation procedures,” Southwest said in a statement. The carrier said it is in close contact with FAA, Boeing and CFM in this matter and to identify a lasting solution. Southwest also said he had announced his flight crews about the potential effects of some bird strikes after the incidents that occurred in 2023.
Recommendation to solve the problem
NTSB announced in November that it was investigating one of the events of 2023.
Bloomberg said that the decision came after FAA stated that it would act on the Council for Controlling Remedial Measures to evaluate internal recommendations formed by a small group of investigators of the regulatory body who escaped the public.
The recommendation included a short -term repair that would require pilots to temporarily change the take -off procedures while Boeing worked on a more permanent solution.
However, the FAA aircraft certification service has determined that the short -term change was not necessary, and instead suggested ordering longer -term repairs to update the engine software, according to the note from the office of the General Transport Department, the new agency said.
(Tagstotranslate) Boeing 737 Max
