What was found
FLT 1163 - DAY-SBN - IMMEDIATELY AFTER TAKEOFF, THE CABIN DOOR ANNUNCIATOR ILLUMINATED. THE FLT CREW DECIDED TO RETURN TO DAY TO PLACE THE ANNUNCIATOR ON MEL. AFTER AN UNEVENTFUL LANDING, THE CABIN DOOR ANNUNCIATOR WAS PLACED ON MEL. MAINTENANCE INSPECTED THE DOOR SWITCHES AND ASSOCIATED WIRING. NO DEFECTS WRE FOUND, THE CABIN DOOR ANUNCIATOR OPERATIONALLY CHECKED GOOD, THE MEL WAS CLEARED. DOOR WAS CONFIRMED CLOSED BY VISUAL INSPECTION IAW MEL. (M)