Could be anything on a four engine engine jet.
Flying as cabin crew years ago I was on the flight deck of a 744 when the two first officers were discussing an engine shutdown due to an oil quantity warning... 4 hours from LHR, but routine enough that they weren't going to wake the captain from rest.
Originally Posted by
RufusXS
Any more on this? I haven’t seen much online other than “engine fault” reported.