Boeing CEO Calhoun to step down from post by end of year

FILE – Then-Nielsen Company CEO David Calhoun, center, watches progress as he waits for the company’s IPO to begin trading, Jan. 26, 2011, on the floor of the New York Stock Exchange. Calhoun will be stepping down at the end of the year from the top job at Boeing, which is under pressure from major airlines wanting to know how the company plans to fix problems in the manufacturing of its planes. (AP Photo/Richard Drew, File)