As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT CREW REPORTED ACRID SMELL IN THE COCKPIT ON APPROACH TO LANDING. NR 2 VHF COMM NOT FUNCTION REPORTED BY FLIGHTCREW. INSPECTION DID CONFIRM NR 2 COMM TRANSCEIVER WAS INOPERATIVE. REMOVED AND REPLACED WITH SERVICEABLE UNIT. ADDITIONAL TROUBLESHOOTING AND INSPECTION TO AIRFRAME AND AVIONICS RELATED COMPONENTS DID REVEAL THE AUDIO CONTROL PANEL (PN990-3333-142) NR 2 VHF COMM TRANSCEIVER. AUDIO CONTROL PANEL RETURNED FOR INSPECTION, REPAIR AND RETURNED TO SERVICE. (NM01200501124) (K)