As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: THE DUST COVER ON THE LEFT OVER WING EXIT IS LOOSE THIS CAUSED A WING EXIT WARNING ON ECAM, DOOR HANDLE WAS CHECKED AND FOUND FULLY SEATED. ADJUSTED AND INSTALLED LEFT HAND OVER WING EXIT COVER FLAP PER AMM 52-21-11.