As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOGPAGE:4500483 - FLT 495 - PHL-DEN - EMERGENCY LIGHTS - DURING EMERGENCY LIGHT TEST, " EMERGENCY POWER SUPPLY UNIT INTERNAL LOAD EMERGENCY LEFT AND RIGHT" AND "EMERGENCY POWER SUPPLY UNIT LEFT FORWARD AND AFT". REMOVED AND REPLACED EMERGENCY POWER SUPPLY UNIT BATTERY PACKS. OPERATIONAL CHECK WAS GOOD.