As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
#1 HF RADIO TRANSMITS FINE BUT RECEPTION IS INCOHERENT WITH VOICE. GROUNDED - YES. RECYCLED CIRCUIT BREAKER HF#1 AND HF#2. REQUESTED HF FREQUENCY CHECK FROM SFO IAW B737-900 AMM 23-11-00-730-801. OPS CHECK GOOD ETOPS GROUND VERIFICATION GOOD.