As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: LEFT OVERWING EMERGENCY BATTERY PACK 11WL SHOWS EXTERNAL LIGHTS FAULT. REMOVED AND REPLACED LEFT CENTER EMERGENCY POWER SUPPLY UNIT (AALA202201037035) PER AMM 33-51-38 OPERATIONS CHECK GOOD AND REMOVED AND REPLACED WING EXIT MARKER OVER WING PER AMM 33-51-15 OPERATIONS CHECK GOOD.