What was found
DURING CRUISE, NOTICED SAT PROMPT WAS NOT DISPLAYED ON MCDU MENU PAGE. ACFT GROUNDED. PERFORMED SATCOM LOCK UP PROCEDURE IN QRH. SAT PROMPT RESTORED ON MCDU.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING CRUISE, NOTICED SAT PROMPT WAS NOT DISPLAYED ON MCDU MENU PAGE. ACFT GROUNDED. PERFORMED SATCOM LOCK UP PROCEDURE IN QRH. SAT PROMPT RESTORED ON MCDU.