As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT SYS - HF2 WILL NOT TUNE TO 8843 (OR A NR OF OTHER FREQS IN 8000 RANGE) EACH TIME TRANSMIT BUTTON IS PUSHED THE TUNING TONE SOUNDS OFF FOR 15 SECONDS HF2 DOES RECEIVE IN THIS RANGE INCLUDING SEL CAL BUT DATA MODE DID NOT WORK. DID OPS CHECK OF HF2 AT 8K RANGE. PERFORMED FIM 23-11-00 OPS CK GOOD TUNED AND DATA GOOD. AS A PRECAUTION REMOVED AND REPLACED HF2 TRANCEIVER IAW AMM 23-11-03. OPS CK GOOD.