(AP) – Boeing CEO David Calhoun will step down from the embattled plane maker at the end of the year as part of a broad management shakeup after a series of mishaps at one of America’s iconic manufacturers. Boeing has been under intense pressure since early January, when a panel blew off a brand-new Alaska Airlines 737 Max. Fallout from the Jan. 5 blowout has raised scrutiny of Boeing to its highest level since two Boeing 737 Max jets crashed in 2018 in Indonesia and 2019 in Ethiopia. In all, the crashes killed 346 people. (Photo: AP)