As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: R1 DOOR WILL NOT STAT ARMED. MAINTENANCE FOUND SLIDE PACKED WRONG AND INTERFERING WITH THE ARMING OF THE DOOR. REPLACED R1 ESCAPE SLIDE PER TASK CARD 26L00025010 AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK OF THE ARMING SYSTEM AND EMERGENCY LIGHTS.