Schuman said that the mechanic would be part of the team taking apart the engine.
You tell me whether that’s appropriate.
Probably not necessary, given that the engine was taken from the fuselage before any of it was lifted from the ocean, but does this even give the APPEARANCE of integrity?
I’m not sure I understand what you think he is going to be doing there. Him being part of the team that takes the engine apart does not mean that he will ever touch a wrench to the engine. He will be an observer and he will be asked questions.
Pratt & Whitney has a very strong interest in the outcome of this investigation. Especially as there is a fatality involved. If I was the airplane owner, I would pretty much insist that my mechanic was part of the team.
So no I see nothing inappropriate about him being part of the team.