The good news is that Howmet's execution in the quarter helped dispel these fears. Strong evidence suggests that Boeing's production slowdown is resulting in more older planes being flown. Moreover, the ongoing growth in flight departures means these older planes are clocking more passenger miles, resulting in increased aftermarket demand from companies like Howmet. Indeed, it's a similar story at another aerospace supplier, Carpenter Technology. Where next for Howmet Aerospace? The aerospace supplier beat ...