What was found
AVIONICS SMOKE ILLUMINATED, PERFORMED EMERGENCY ACTION ITEMS. WARNING LIGHT EXTINGUISHED AFTER 20 SECONDS. F/A SMELLED A GAS LIKE ODOR, DECLARED EMERGENCY. INSPECTED AVIONCIS COMPARTMENT FAN, AVIONICS LR US AND WIRING, NO DEFECTS NOTED. RAN ENGINES WITH CREW, BLEEDS ON , AVIONICS ON ECS OPERATING, NO DEFECTS NOTED, NO ODOR DETECTED. ACFT FOUND OK FOR CONTINUED SERVICE.