As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L OVERWING EXIT ECAM DISPLAYED DURING CRUISE FOR ABOUT 5 MINUTES NO CABIN PRESSURE CHANGES NOTED UPPER EMERG EXIT DOOR HANDLE COVER CAME LOOSE AND FLIGHT ATTENDANT REINSTALLED COVER. REMOVED COVER AND VERIFIED DOOR ARMING MECHANISM SECURE. REINSTALLED AND SECURED COVER. EMERG EXIT ECAM MSG GONE.