As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TEST OF EMERGENCY LIGHTS: "ATA 33-51-38 EPSU INT LOAD AFT L"REFERENCE STS NR0030 REFERENCE STS NR0030 REMOVED AND REPLACED 13WL EPSU BATTERY PER A320 AMM 33-51-38-000-002-A /33-51-38-400-002-A. PERFORMED OP CH ECK PER A320 AMM 33-5100-710-001-A. SYSTEM TEST IS OK.