What was found
EN ROUNT FROM TOL TO LAX, THE LANDING GEAR DOOR NOT LATCHED LIGHT ILLUMINATED FOLLOWING LANDING GEAR RETRACTION. THE FLIGHT CREW CYCLED THE GEAR BUT THE WARNING INDICATION REMAINED THE SAME. THE FLIGHT FOLLOWED COMPANY PROCEDURES AND CONTINUED TO LAX FOR AN UNEVENTFUL LANDING. MAINTENANCE INSPECTED THE AIRCRAFT WHICH REVEALED A DEFECTIVE PROXIMITY SWITCH CONTROL BOX AND SENSOR. MAINTENANCE REPLACED THE PROXIMITY CONTROL BOX AND SENSOR AND PERFORMED SUCCESSFUL OPERATIONAL CHECKS IN ACCORDANCE WITH THE MAINTENANCE MANUAL. THE AIRCRAFT WAS RETURNED TO SERVICE.