After noticing vibrations from the engine about an hour into the flight, the crew made an emergency return to Minneapolis-St Paul International Airport.
An hour seems like an awfully long time to have waited to RTB.
Yeah. I think they returned for landing after doing a circuit of the airport. They might not have even heard or felt that cover rip off…good chance that a passenger had to let them know. It appears to have happened well after V1 - so the correct and safest action was to continue to the takeoff no matter what.
I’ve had an engine cowl come open in flight, but it only popped up a few inches and then it held (on a King Air). Never a fun thing when a passenger comes forward with the question “Is that supposed to be like that??”