As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PHX - EEL - DURING OVERNIGHT MAINTENANCE DISCOVERED THE EMERGENCY EXIT LIGHTS INOPERATIVE FROM ROW 18 TO ROW 26. MAINTENANCE REMOVED AND REPLACED THE AFT EMERGENCY POWER SUPPLY IAW AIRBUS 320 MM 33-51-38-991-001. OPERATIONAL CHECKS WERE GOOD.