As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FAIL DISPLAYED ON HF2 RECEIVER. GROUNDED - YES. PERFORMED BITE TEST OF HF2 RECEIVER LRU PER SUBTASK B737-800 FIM 23-11-00-860-007. TEST GOOD. PERFORMED OPERATIONAL TEST B737-800 AMM 23-11-00. TEST OK. FAIL LIGHT WENT OUT. ACFT OK FOR SERVICE.