So I continue to get this message.  I've gone through the "How to Fix EICAS messages that do not clear" work around/fix but still appears.  It does go away when you hit the cancel button but then when you recall, it's always there.

Any other ideas to get rid of this?

Edited April 14, 20188 yr by ViperXBR

Found this . 

 

Will have to try this tomorrow morning for VATSIM's CTP.

This worked for me:

"The correct way to do it is  with captain's CDU on POS INIT page, turn on the IRS's and wait until yellow "FMC" appears on EICAS. Scratchpad displays "SET IRS POSITION" which disappears when position is entered. EICAS "FMC" message also clears."

Thanks!

FMC MESSAGE means the FMC is showing a message. Look at the FMC. Acknowledge/clear the message.

Most common source is a download pending... check the COMMS screen.

1 hour ago, scandinavian13 said:

FMC MESSAGE means the FMC is showing a message. Look at the FMC. Acknowledge/clear the message.

Ya, I know what it means and what to look for but there was absolutely nothing found in the FMC.  It seems to be tied to a very specific process when aligning the IRS that needs to be followed or else you'll see that message the entire flight.

 

Read that when Panel states get corrupted, you got that message.