As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MIA - MAINTENANCE REPORTED LOW VOLTAGE ON EMERGENCY LIGHT BATTERIES. MAINTENANCE REMOVED AND REPLACED THREE EMERGENCY LIGHT POWER SUPPLY UNIT BATTERY PACKS (S/N 19877, 26676, 6488) IAW ATR MM. OPERATIONAL CHECK WAS GOOD AND AIRCRAFT WAS RETURNED TO SERVICE. (M)