As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
"SAT NR 1" BLUE LIGHT ILLUMINATED & NO SATCOM PROMPTS FOUND ON MCDU PAGE. ACFT GROUNDED. SATCOM LOCKED UP. CYCLED POWER TO SATCOM IAW FIM TASK 23-15, TSK 801. NORMAL OPS RESTORED- PROMPT RETURNED & LIGHT OUT. ETOPS GROUND VERIFICATION ACCOMPLISHED.