This seems like a fast-track to making airline mechanics a minimum-wage, any-guy-off-the-street kind of job, which is not who I want touching the plane I'm flying in.
There needs to be SOME accountability. "Oh, but my glasses told me to unscrew this bolt, I was just following orders." is not how I want the future to be.
We worked on a proof of concept using HoloLens for an engine teardown team at a trucking OEM. Ran into issues around network, security, the Hololens itself and a general disinterest from the teardown team but there's a lot of room to run in this space. It was a fun, if frustrating, project.
Augmented reality glasses, coupled with an AI that can interpret vision would seem to be useful here then.