As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE NUMBER 1 AND 2 VHF COMM RADIOS WERE INOPERATIVE AFTER TAKEOFF. STATIC WAS TRANSMITTED ON ANY FREQUENCY SELECTED. FLIGHT RETURNED TO STL. FOUND MOISTURE IN THE CAPTAINS AUDIO SELECTOR PANEL AND REPLACED THE PANEL. CHECK-C 2-13-99 MCI.