Boeing is putting the final touches on a software upgrade and revision of the pilot training for the 737 Max. The upgrade is meant to target the aircraft's flight control system. News of the upgrade comes after it was determined that a deadly crash involving a 737 Max 8 in Ethiopia had "clear similarities" to another deadly crash involving the same type of plane in Indonesia. Both of these crashes happened in the last five months, sparking concerns over potential issues with the plane model. Sources say the upgraded software for the 737 Max is expected to be released in a week to ten days, after which new pilot training will be rolled out. Airlines around the world have grounded the 737 Max as a precaution.