As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 3314 DURING BITE TEST FOUND EPSU (13WL) UNIT FAULT. CORRECTIVE ACTION: INSTALLED EPSU UNIT (13WL) AS PER A330 AMM 33-51-38. OPERATIONAL CHECK OF EPSU BY BITE CHECK CARRIED OUT AS PER A330 AMM 33-51-00. FOUND SATISFACTORY. (0456868)