As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 3300, CREW DISCOVERED FOUR FLOOR EMERGENCY LIGHTS WERE INOP AIRCRAFT REMOVED FROM SERVICE. REMOVED AND REPLACED EMERGENCY BATTERY NUMBER 24LN IAW SAAB 340 AMM 33-50-10. SYSTEM OPERATIONAL CHECK GOOD IAW SAAB 340 AMM 33-50-00. AIRCRAFT RETURNED TO SERVICE.