Title correction: UPS and FedEx both (as directed by the manufacturer).
I don't think they've manufactured one since 2001 and McDonnel Douglass is long gone. How proactive is Boeing about safety of legacy brands considering what they do with their current production lines?
> How proactive is Boeing about safety of legacy brands considering what they do with their current production lines?
Very proactive : "blow the whistle" = dead
The went full Kilary Klinton?