As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE: INOP EPSU-EMERGENCY POWER SUPPLY UNIT 11WL IN PASSENGER CABIN. MAINTENANCE REPLACED EPSU-EMERGENCY POWER SUPPLY UNIT 11WL IN PASSENGER CABIN IAW A320FAM AMM 33-51-38-000-001-A ANDA320 FAM AMM 33-51-38-400-001-A.