Originally Posted by Buzzardgut

This was my first thought when reading OP's post but then I was thinking about the real life situation. if you have a couple mechanics working on something and they're talking about work problems things could get missed. Or if they're under stress from how this could be impacting their home life it could lead to misses. It reminds me of the "Sterile Cockpit" rule.

It does seems like WN has had some news stories lately but i feel like there's been an uptick in plane crashes or other incidents (Lithium Battery fires) in general lately.