What was found
FLIGHT ATTENDANT REPORTED L2 DOOR PRESSURIZATION LIGHT FLASHING, WHEN SLIDE ARM LEVER PUSHED. LIGHT GOES OUT, NUT STARS FLASHING AGAIN, WHEN LIGHT FLASHING L2 SLIDE SHOWS DISARMED ON ECAM, ALL INDICATIONS NORMAL ON TAKE OFF. L2 SLIDE GIRT RECEPTACLE HAD DEBRIS, NOT ENGAGING. CLEANED GIRT BAR RECEPTICLES SLIDE L2 ARMS NORMALLY DISARMED CKS OK.