If the crew knew the panel was missing would they go TransAtlantic?
Land at JFK under MLW, inspect plane...
HOLY SHAT! a panel is missing.....
fix plane and/or rebook pax....
now..... was that so hard?
I agree.
Would the CA have faced disciplinary action for bringing the ship back around into DFW with an unknown problem?
Nope.
Will he face disciplinary action for taking the ship all the way to Europa with a constant rumble?
Possibly.
I know what choice I would go with.