As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MCDU MENU PAGE DID NOT DISPLAY "SAT" OPTION AT AL. ACFT GROUNDED. ACCOMPLISHED FIM TASK 23-15-00-23-801, PARA C. SATCOM LOCK-UP ON POWER TRANSFER. NO FAULTS FOUND ON IRIDIUM TRANSCEIVER. PULLED AND RESET SATCOM CB P18-2, D14 SAT PROMPT NOW DISPLAYS ON MDCU.