As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTION TYPE:N/A AIR TURNBACK DUE TO CABIN DOOR INDICATING OPEN IN FLIGHT AT FL230 AND 60 NM FROM MCI. FOLLOWED CHECKLIST AND RETURNED TO MCI. C/W FWD PASSENGER DOOR ADJUSTMENT TEST IAW A300 AMM 52-10-11-5 UP TO FUNCTIONAL TEST. DIMENSIONS ARE WITHIN AMM LIMITS. REMOVED AND REPLACED BOTH DOOR WARNING SWITCHES WITH REF TO MM 52-10-11-5. NO DEFECTS.