As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SATCOM 1 & 2 INOPERATIVE. TRIED TO MAKE SATCOM CALL FROM BOTH FMC'S AND SATCOM PAGE GO BLANK. MENU PAGE REAPPEARS WITH SAT PROMPT MISSING. SAT PROMPT COMES BACK AFTER 5 SECS. TRIED TO MAKE 5 SATCOM CALLS, SATCOM PAGE WENT BLANK EACH TIME, WITH FMCS. ACFT GROUNDED. BOTH SATCOM 1 & 2 TESTED GOOD, NO DEFECTS FOUND IAW AMM TASK 23-15-00-730-801.