As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
#2 HF RADIO WILL NOT TRANSMIT OR RECEIVE. GROUNDED - YES. REMOVED #2 HF XVR PER B737-800 AMM 12-11-21-000-801. INSTALLED #2 HF XVR PER AMM 12-1-21-400-801. PERFORMED INSTALLATION TEST OF #2 HF XVR PER SAME. TEST IS GOOD. PERFORMED HF SYSTEM TEST PER AMM 23-11-000-730-801.