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 LIGHT AT ROW 4L WAS INOPERATIVE. MAINTENANCE REMOVED AND REPLACED THE EMERGENCY POWER SUPPLY UNIT, 10WL, IAW AIRBUS 319 MM 33-51-38. OPERATIONAL CHECKS WERE GOOD. *S/D* WILL BE SUBMITTED UPON RECEIPT OF VENDOR TEAR DOWN REPORT.