What was found
ON INITIAL CLIMB OUT PASSING FL 230, RECEIVED ECAM INDICATION OF THE LT CREW ENTRY DOOR UNLOCKED. F/O CONFIRMED PARTIAL UNLOCK CONDITION OF THE DOOR. RETURN TO DEPARTURE. PASSING FL1800 UNLOCKED INDICATION WENT AWAY. CREW DEBRIEFED THAT THE DOOR WAS CONFIRMED BY MECHANICAL LOCKED/ UNLOCKED INDICATORS. THEY WERE HALF GREEN AND HALF RED WHEN CHECKED BY F/O. PERFORMED ADJ/TEST OF SWITCH 7WS INITIALLY FOUND, CONNECTOR PLUG LOOSE AND FOUND SWITCH 1/2 TURN OUT USING TEST BOX. OPS CHECK GOOD IAW MM 52-71-11-5 AND IAW MM 52-71-00-5.