As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING PREFLIGHT CREW REPORTED EMERGENCY OVERHEAD LIGHTS IN 7A, 8BC AND 10BC TO BE INOPERATIVE. MAINTENANCE REMOVED AND REPLACED AN EMERGENCY LIGHT POWER SUPPLY UNIT IAW MFG MM. OPERATIONAL CHECK WAS GOOD AND AIRCRAFT WAS RETURNED TO SERVICE.