What was found
AFTER TAKEOFF, CREW TURNED ON THE ENGINE ANTI-ICE AND NOTICED ALL 3 BLUE ADVISORY LIGHTS FLICKERING ON THE NR 1 ENGINE SIDE. SMOKE STARTED APPEARING FROM THE PANEL. ANTI-ICE WAS SELECTED TO THE OFF POSITION AND THE CIRCUIT BREAKER WAS PULLED. THE ACFT RETURNED TO BHM. NO EMERGENCY WAS DECLARED. CONTRACT MAINTENANCE (AMR COMBS) REMOVED PANEL AND VERIFIED THE DAMAGE WAS CONTAINED WITHIN THE PANEL (PN 69-37320-53). RECEIVED SERVICEABLE PANEL AND INSTALLED. AIRCRAFT DEPARTED BHM WITH NO FURTHER INCIDENTS.