As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AC WAS IN SCHEDULED MAINTENANCE AND WAS NOT OOS DUE TO THIS ISSUE. DURING EPSU TEST, MESSAGE SHOWN ESCAPE SLIDE R2/EPSU 14WL FWD1. R2 DOOR EPSU WAS REMOVED AND REPLACED IN REF. TO AMM 33-51-38-000-001-A/400-001-A, OPS CHECK GOOD. A/C OK FOR SERVICE.