As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AIRCRAFT RETURNED TO LAX DUE TO THE AFT LEFT DOOR ARMING LEVER KEPT MOVING UP AND THE DOOR WOULD NOT STAY IN THE ARMED POSITION AFTER TAKEOFF. MAINTENANCE FOUND THE SLIDE MOORING LINE WAS WRAPPED AROUND THE GIRTBAR PREVENTING THE DOOR FROM ARMING PROPERLY AND REPLACED THE SLIDE ASSEMBLY PER TASK CARD 26L00025010