by Heather Scott and Delphine Touitou with Luc Olinga in New York WASHINGTON, United States (AFP) — Boeing is upgrading the stall prevention software on its 737 MAX, industry sources said Friday, as French investigators scoured black box data from the latest of two deadly crashes involving the aircraft in recent months. The MAX has been grounded worldwide following Sunday’s Ethiopia Airlines disaster that killed all 157 on board, and the fallout has left the […]