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Boeing said the funds are an initial investment to be paid over multiple years to support education, hardship and living expenses of the families of the victims who were killed in the "tragic accidents" of Indonesian Lion Air Flight 610 and Ethiopian Airlines Flight 302.

Boeing hopes the MAX will be recertified this summer, but it will take months to get the grounded aircraft back in the air. In a reversal, the company said pilots should receive flight-simulator training before flying the MAX. But it's unclear if there are enough of the ground-based, computer-driven mockups of the jet's cockpit to meet a surge in demand — and that could delay the plane's return to service.

Big smiles appeared on their faces as they saw weeks of preparation turn into a meaningful and enjoyable gathering, which also raised more than 1,000 pounds (,300) for the charity they got together to support.

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Boeing's 737 MAX aircraft was grounded worldwide in March following a fatal crash on Ethiopian Airlines that killed all 157 aboard, just five months after a similar crash on Lion Air that killed all 189 passengers and crew.