What was found
EXT LOADS FWD L MESSAGE ON CIDS PANEL AFTER EMERGENCY LIGHT TEST. T/S DETERMINED THAT SLIDE AT 1R IS CAUSING MSG. REPLACED 1R DOOR SLIDE. INSP SLIDE AT DOOR 1R, SLIDE SECURED ON DOOR, SLIDE PIN REMOVED AND STOWED, ASSIST BOTTLE REARMED AND SAFETIED, EMERG LIGHT TEST OK. ACFT RETURNED TO NORMAL.