The head of Boeing's commercial aircraft, Kevin McAllister, has been shown the door as the company grapples with its 737 MAX crisis. McAllister is the first top-level executive to leave Boeing since two fatal crashes led to a worldwide grounding of the model. The announcement came ahead of a much-awaited announcement on the firm's quarterly financial results. Plus, Brazil's Congress has approved an overhaul of the country's generous pension system. Senators voted 60-19 to give the final green light to the bill. 

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