As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING LAYOVER DITCHING DAM RT EMERGENCY EXIT DOOR WATER DAM WAS ACTIVATED BUT DID NOT DEPLOY. DURING LAYOVER F/A ATTEMPTED TO OPEN EXIT DOOR TO VENT A/C. F/A HERD A HISSING NOISE AND STOPPED REMOVING DOOR. FOUND HISSING NOISE TO BE NITROGEN FROM DITCHING DAM BOTTLE. SERVICED BOTTLE, OPS CHECKED DITCHING DAM SYSTEM NO DISCREPANCY NOTED AND THEN SERVICED AND REACTIVATED SYSTEM.