An ENGINE MINOR FAULT is a level 1 alert advisory.
I had previously thought that it was a 'go without condition' message/repair within XXX hrs, but have just read that if it's an ENG 3 MINOR FAULT, 'yellow elec hyd pump' p/b switch must be selected to off position after pushback to prevent activation of the pump after takeoff.
It is returned to auto position after landing/shutdown for cargo door ops.
Hope this helps
cod