Too late to avert catastrophe, the software update that Sinnett had been promising since November was finally getting close to completion. Boeing had expected to hand over the final specifications to the FAA in April, six months (and not six weeks–ish, as Sinnett had said) after the first crash. A date had even been scheduled for Stacey Klein, the Aircraft Evaluation chief who’d worked with Forkner, to evaluate the revised software in a simulator in Miami. That date, March 13, turned out to be three days after the crash in Ethiopia. Boeing had been so confident MCAS was fixed that it was
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