The news comes weeks after a fatal airline crash in Ethiopia -- the second in six months of a 737 MAX jet.
"Safety is our first priority, and we will take a thorough and methodical approach to the development and testing of the update to ensure we take the time to get it right," Boeing said in a statement provided to TheStreet.
The airplane maker said it was continuing to work with the Federal Aviation Administration and other agencies to develop and certify its software update and training program it said will remedy problems with the new, high-tech aircraft.
"We are working to demonstrate that we have identified and appropriately addressed all certification requirements and will be submitting for FAA review once completed in the coming weeks."
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