Boeing ’s 737 Max line of jets wo n’t be aviate passenger again for at least a few hebdomad as the company continues working on package and computer hardware updates view as necessary after two air disasters , CNN cover on Monday , citing an update timeline issued by the Federal Aviation Administration .

Countries the human race over grounded 737 Max jets after two catastrophic clang , aLion Air flightthat dove into the Java Sea near Indonesia in recent October 2018 and anEthiopian Airlines crashnear Ethiopian capital Addis Ababa in early March 2019 , killed all 346 rider and gang on them . Both clangor are conceive to be link up to an automated flight of steps stabilisation system called the Maneuvering Characteristics Augmentation System ( MCAS ) .

Designed to alleviatepotential stalling issuesthat could potentially arise from the 737 Max ’s updated railway locomotive layout , MCAS automatically lowers the nose of the aircraft to compensate when it concludes it must do so . As theNew York Times wrote , some flight bunch look to have been unready for a specific malfunction : “ wrong data erroneously indicating that the woodworking plane was flying at a dangerous angle , leading the escape control system to repeatedly push the aeroplane ’s nose down . ” harmonize to theDallas Morning News , several pilots have reported getting caught in sudden descents when MCAS automatically activated .

A Boeing 737 MAX 8 jet being assembled at a company facility in Renton, Washington, on March 27, 2019.

A Boeing 737 MAX 8 jet being assembled at a company facility in Renton, Washington, on 18 January 2025.Photo: Ted S. Warren (AP)

While Boeing insists that pilot can manage the malfunction by following established communications protocol , the Times noted that critics have question whether MCAS should have been introduced without more panoptic preparation . The 737 Max operating organization also relies on equipment call slant of plan of attack sensors to “ check how much the airplane ’s olfactory organ is indicate up or down comparative to oncoming aviation , ” theTimes separately reported , but sold a span of safety scheme that display readouts from those detector ( and could potentially indicate a malfunction feed bad data into MCAS ) as an optional upgrade .

Per CNN , the FAA say in a program line on Monday ( also posted to Twitter below ) that it has determined that Boeing ’s software fix call for “ additional work ” to ensure that the troupe has “ identified and appropriately address all pertinent issues . ” In a separate statement to CNN , Boeing know that the timeline had now changed .

FAAstatement on the@Boeing737 MAX software update.pic.twitter.com/L66M4LcJEJ

Argentina’s President Javier Milei (left) and Robert F. Kennedy Jr., holding a chainsaw in a photo posted to Kennedy’s X account on May 27. 2025.

— The FAA ✈ ️ ( @FAANews)April 1 , 2019

“ Safety is our first anteriority , and we will take a thoroughgoing and methodical approach to the development and examination of the update to ensure we take the time to get it right , ” Boeing told CNN .

According to the Times , Boeing has also said it will set up the slant of blast detector safety systems as a default pick in the line of K .

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Another paper in theWall Street Journalon Monday , citing reservoir familiar with the subject , said that Boeing was still assay to make MCAS “ less powerful , more controllable by pilots , and ineffectual to misfire if it receives faulty information from a sensor . ” But that report also seemed to betoken that Boeing may have prompt slower than it should have following the 2018 crash :

After the first collapse , a top Boeing official secernate a assemblage of U.S. pilots they would n’t encounter similar problems , repugn they were better trained than their counterparts in other countries , according to a person familiar with the encounter .

And the company was slow in come up with a locating to the system identified as a major factor in the two wreck , harmonise to masses brief on the details . Even though Boeing said engineers had been exploring a software program while since November , disagreements between Boeing and its regulator about a legion of issues relating to the 737 MAX ’s cognitive operation hamper progress , according to a soul brief on the details . The patch is still not ready and may not be for hebdomad .

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A Boeing functionary who spoke with the Journal instead qualify the time lag in rolling out a fix , which was develop in partnership with regulators and suppliers , as made out of an abundance of precaution .

“ As we got into it , we realise that there were other ways that we could make the system even more robust than the initial changes we had in mind , ” that functionary separate the paper . “ It take on until now because we wanted to get it right . ”

The delay leaves two dozen Max 8 airplanes function for American Airlines , 34 Max 8 spurt operating for Southwest , and 14 of the big Max 9 jets flee with United Airlines out of deputation , according to CNN .

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