As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND EMERGENCY LIGHT BATTERY PACKS NR 2 AND 3 LOW, LIGHTS SHUT OFF AFTER APPOX 10 SECONDS. REMOVED AND REPLACED THE NR 2 BATTERY. OPS CHECKED GOOD IAW AMM 33-50-04. REMOVED AND REPLACED NR 3 BATTERY, OPS CHECKED GOOD IAW AMM 33-50-04.