As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 383 - CLT - EMERGENCY EGRESS SYSTEM - AFTER CLOSING L1 DOOR, EMERGENCY EXIT SLIDE WOULD NOT ARM. HANDLE WENT INTO ARMED POSITION BUT SLIDE DID NOT SHOW ARMED ON DOOR / OXY PG ON FORWARD FLIGHT ATTENDANT PANEL. MAINTENANCE FOUND FOREIGN OBJECT OBSTRUCTING SLIDE/LOCK ENGAGE. REMOVED DEBRIS AND ALL INDICATIONS WERE NORMAL.