As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) DUAL HF SYSTEM FAILURE. ON ARRIVAL IT WAS REPORTED THAT NR 1 HF SYSTEM WANDERS OFF FREQUENCY AND BECOMES GARBLED. NR 2 HF WOULD NOT TUNE TO THE FREQUENCY SELECTED. THE NR 1 SYSTEM WAS RE-RACKED AND OPERATED NORMALLY. THE NR 2 SYSTEM TRANSCEIVER AND COUPLER WERE REPLACED.