As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SATCOM STATUS ON LINK STATUS PAGE IS NO COMM. CREW COMMENTS: SATCOM UNAVAILABLE NO BOMM ON ACARS STATUS MESSAGE LOW GAIN. TROUBLESHOT PER AMM 23-25-00 FOUND HGA HPA TX GAIN FAULT. REMOVED & REPLACED M1782 HIGH POWER AMPLIFIER, OPS CHECK NORMAL.