As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 625 - DCA-PHX - EMERGENCY LIGHTS - EMERGENCY LIGHT OVER 2L IS INOPERATIVE. REMOVED AND REPLACED AFT EMERGENCY POWER SUPPLY UNIT BATTERY (EPSU - 13WL) AND RELAMPED BOTH LEFT AND RIGHT OVERHEAD DOOR LIGHT ASSEMBLY. OPERATIONAL CHECK WAS GOOD.