As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
# 2 HF DOES NOT TRANSMIT OR RECEIVE WITH EITHER CAPT OR FO AUDIO PANEL,AND WITH EITHER CAPT OR FO PUSH TO TALK SWITCHES. UPON LANDING DISCOVERED HF/SAT XFR SWITCH WAS IN SAT. RETURNED TO HF AND HF 2 OPS NORMAL. GROUNDED - YES. PERFORMED OPS. CK OF HF COMM SYSTEM PER AMM 23-11-00/501.