Folks,
Just checking on a few posts regarding MELs when I came across this.
The discussion about why there is a difference between QRH/OM and MEL has been right on the money. However, I thought that it remained a little unclear that consulting the MEL in flight following a system failure is generally conducted only to determine the consequences after landing of that failure if there is limited or no engineering support.
The MEL has no in-flight relevance other than reminding you of the conditions under which you agreed to operate the aircraft.
Stay Alive