As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF HAD L OVERWING DOOR ECAM FOR 20 SEC WENT AWAY. PRESSURE FINE BUT FLIGHT ATTENDANT SAYS IT HAS A WIND. CAUSE, PROX SWITCH OUT OF ADJUSTMENT AND LANYARD STUCK IN DOOR MECHANISM. ADJUSTED PROX SENSOR AND REPLACED PINCHED LANYARD.