As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AUDIO CONTROL PANEL PROBLEM. SWAPPED 1ST OFFICER WITH 1ST OBS PANEL. F/O PANEL OP CHECK OK. 1ST OBSERVERS PANEL RECEIVES NR 2 VHF BUT CAN`T TRANSMIT. F`O'S SYSTEM, OP CHECK OK. CAPTAINS AUDIO SYSTEM FUNCTIONS NORMALLY. SHOULD BE SEC OBSERVERS. REPLACE AUDIO CONTROL PANEL. SYS OPS CK NORMAL WITH GOOD TWO WAY COMMUNICATION.