An investigator walks among the debris of Ethiopian Airlines flight ET302, which crashed on March 10, 2019. This crash, the second of a Boeing 737 Max in less than five months, had the effect of grounding all of these aircraft on the ground for two years. (File photo)
At the end of December, Boeing asked airlines that own 737 MAXs to carry out checks because of a risk of Loose bolt on rudder control system.
Separately, The Canadian Press reported today that Boeing has asked U.S. federal authorities to exempt a new 737 MAX model from a safety standard designed to prevent part of the engine housing from overheating and break during flight until 2026.
Boeing is working to address the hazard, U.S. federal officials said, while asking pilots to limit the use of an anti-icing system in dry weather to avoid damage that could lead to loss of control of the aircraft.
Otherwise, warns the FAA, air intakes around the Engines could become too hot and parts of the casing could come loose and strike the aircraft, possibly breaking windows and causing rapid decompression.
This is what happened when an engine fan blade broke on an older 737 during of a Southwest Airlines flight in 2018. A piece of the loose engine housing struck and shattered a window, and a woman sitting next to the window was killed.
Debris caused by the explosion of one of the engines on the left side of the aircraft shattered a porthole and damaged the fuselage. (File photo)
The overheating issue only affects the MAX model, which has carbon composite engine inlets rather than metal.
Boeing needs the exemption to begin delivering the new, smaller MAX 7 to airlines.
But some observers have sounded the alarm The alarm that safety rests with pilots, who must remember when to limit the use of the anti-icing system.
You get our attention when you say people could be killed, Dennis Tajer, a spokesman for American Airlines pilots, told Seattle Times, which reported the exemption request Friday.
We are not interested in memory-dependent exemptions and accommodations human… There simply has to be a better way.
A quote from Dennis Tajer, spokesperson for American Airlines pilots
Boeing, for its part, says it is developing a long-term solution that will undergo extensive testing and FAA review before being introduced into the 737 MAX fleet.
With information from Agence France-Presse and The Canadian Press