As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HF 1 HAS NO SIDETONE OR VOICE TRANSMITTING. HF 2 HAS NORMAL SIDETONE AND VOICE TRANSMITTING. GROUNDED - YES. RESET #1 HF TRANSCIEVER, #1 HF BITE IS NORMAL. RADIO CHECK IS GOOD WITH SFO ARINC ALONG WITH SELCAL TEST REF B737-900 AMM 23-11-00.