As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE: LEFT OVERWING EMERGENCY EXIT "CHECK SLIDE PRESSURE" MESSAGE DOES NOT GO OUT OF VIEW ON THE FLIGHT ATTENDANT PANEL WHEN BOTTLE LOCK PIN HAS BEEN REMOVED. MAINTENANCE REPLACED SERVICEABLE LEFT OVERWING EMERGENCY EXIT INFLATION RESERVOIR BOTTLE PER A321NX AMM 25-62-46. PERFORMED SATISFACTORY OPS TEST PER A321NX AMM 25-62-46.