As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HF1 AND HF2 VOICE TRANSMIT REPORTED WEAK MID-PACIFIC. RESUMED WORKING FURTHER WEST. HF2 DATA WORKED OK. ACFT GROUNDED. REF AMM 23-11-61-400-801, REMOVED HF COUPLER FOR THE NR 2 POSITION. GROUND VERIFICATION CHECK SUCCESSFUL. ACFT OK FOR SERVICE.