What was found
WHEN F/O'S PA IS USED, ALL RECEPTION ON VHF IS BLOCKED ON HEADSETS & SPEAKERS. COULD NOT DUPLICATE THE PROBLEM. REPLACED F/O'S AUDIO SELECT PANEL PER MM, PRECAUTIONARY OP CHECK GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
WHEN F/O'S PA IS USED, ALL RECEPTION ON VHF IS BLOCKED ON HEADSETS & SPEAKERS. COULD NOT DUPLICATE THE PROBLEM. REPLACED F/O'S AUDIO SELECT PANEL PER MM, PRECAUTIONARY OP CHECK GOOD.