KEY POINTS
  • Boeing in July warned about further production cuts or a temporary shutdown of 737 Max production if the grounding wore on longer than expected.
  • FAA chief Steve Dickson told CNBC last week that the regulator likely wouldn't clear the 737 Max's return until some time in 2020, ending hopes by Boeing to get the plane back in service by the end of this year.
  • Boeing's decision could come as soon as Monday.

Boeing shares fell Monday as the company is expected to soon decide whether to further cut or suspend production of the 737 Max as the timeline for the beleaguered plane's return to service slips into 2020.

The company has repeatedly warned investors that it could cut output of the planes again or suspend its production line if the flight ban drags on longer than it expected. Boeing CEO Dennis Muilenburg has said that suspending output altogether could be "more efficient" than lowering output again.