As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING PREFLIGHT INSPECTION CREW REPORTS ALL CABIN EMERGENCY LIGHTS WERE INOPERABLE. THE SWITCH IN THE CABIN WAS IN THE ON POSITION. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE EMERGENCY LIGHT BATTERIES IAW CRJ-700 AMM 33-51-17. ALL BATTERY PACKS PART NUMBERS OFF 2013-1A. NR 1 BATTERY S/N OFF 79752, NR 2 S/N OFF 101784, NR 3 104550, NR 4 S/N OFF 76805. THE AIRCRAFT WAS RETURNED TO SERVICE.