As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: DURING PS CHECK OPERATIONAL TEST OF EMERGENCY LIGHTS FAILED. REMOVED AND REPLACED EMERGENCY BATTERIES AT LOCATIONS 10WL (AALA202305154826), 11WL (AALA202305151697), 12WL (AALA202305152857), 13WL (AALA202305153359). OPERATIONS CHECK GOOD. NO ACTIVE FAULTS AT CABIN INTERCOMMUNICATION DATA SYSTEM IN ACCORDANCE WITH AMM 33-51-38-400-002-A.