As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
2 HF RADIOS INOP COUPLERS #1 AND #2 REPLACEMENT NO FAULT ON OMF EXISTING FAULT, STILL BAD TRANSMISSION AND RECEPTION ON BOTH HF SYSTEM. REMOVED AND REPLACED #2 HF TRANCEIVER. OPS CHK GOOD. ALSO REPLACED # 2 HF COUPLER AND # 1 HF COUPLER . OPS CHECK GOOD.