As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAINTENANCE FOUND THE EMERGENCY LIGHTS IN THE AFT STAIRWELL AND ABOVE THE TAIL CONE SLIDE NOT FUNCTIONING DURING SERVICE CHECK. MAINTENANCE REPLACED THE EMERGENCY LIGHT BATTERY PACKS B5-27 & B5-28 PER WIRING DIAGRAM AND THE SUBSEQUENT OPERATIONAL CHECK WAS GOOD. AIRCRAFT HAS RETURNED TO SERVICE.