As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLT - FLT 7900 - DURING TEST FLIGHT AFTER HEAVY MAINTENANCE VISIT, THE LOW LEVEL EMERGENCY EXIT LIGHTS FROM SEAT ROW 7 AND BACK ILLUMINATED. AFTER LANDING, THE AFT MOST LIGHTS WENT OUT. MAINTENANCE REMOVED AND REPLACED THE EMERGENCY LIGHT BATTERY PACKS AT SEAT ROWS 5 AND 11. OPERATIONAL CHECK NORMAL. (M)