As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AISLE OVERHEAD EXIT SIGN AFT SIDE WILL NOT ILLUMINATE AT SEAT ROWS 23 AND 24. MAINTENANCE REPLACED EMERGENCY POWER SUPPLY UNIT 11WL (AALA202211014520) AND BATTERY (AALA202211017792) PER AMM 33-51-38. ALSO REPLACED EMERGENCY POWER SUPPLY UNIT 13WL BATTERY (AALA202211017659) PER AMM 33-51-38. A SATISFACTORY OPEATIONAL CHECK WAS ACCOMPLISHED.