As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SATCOM PROMPT WENT AWAY ON MENU PAGE. ACFT GROUNDED. VERIFIED NO SATCOM PROMPT. SWITCHED POWER FROM GROUND POWER TO APU POWER BACK AND FORTH. NO CHANGE. PULLED AND RESET SATCOM CIRCUIT BREAKER. PROMPT CAME BACK. SWITCHED POWER BACK AND FORTH AGAIN. SATCOM PROMPT STAYED IN VIEW. ACCOMPLISHED SATCOM OPS TEST. OPS NORMAL REF MM 23-15-00. NO HISTORY LAST 30 DAYS.