As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING B-INSPECTION FOUND BOTH AFT EXTERIOR OVERWING EMERGENCY LIGHTS INOPERABLE. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED BATTERY AND POWER SUPPLY IAW AMM 33-50-04, OPERTIONAL WAS CHECK GOOD. NO DEFECTS NOTED. THE AIRCRAFT RETURNED TO SERVICE.