What was found
ON SHORT FINAL TO KMEM RWY 36L, GOT AVIONICS SMOKE WARNING AND CRC. DECLARED EMERGENCY AND STOPPED ON RWY. RAN QRH PROCEDURES. NO SMOKE NOTED, SHUTDOWN ENGINES STARTED APU AND ASKED FOR TOW-IN TO PARKING. T/S AVIONICS COMPARTMENT SMOKE DETECTION USING TSM 26-15-00. REMOVED AND REPLACED AVIONICS COMPARTMENT SMOKE DETECTOR 11WA AND 13WA. OPS CHECK GOOD REF A300 MM 26-15-12-4 T/S AVIONICS COMPARTMENT SMOKE DETECTION USING TSM 26-15-00. REMOVED AND REPLACED AVIONICS COMPARTMENT SMOKE DETECTOR 11WA AND 13WA. OPS CHECK GOOD REF A300 MM 26-15-12-4.