As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING EMERGENCY LIGHT CHECK FOUND BATTERIES PACKS POWER SUPPLY POSITION M1208 AND M9046 INOP. REMOVED SLIDE WALL PANEL AT POS 31AB FOR ACCESS, REMOVED AND REPLACED BATTERY PACKS AT POS M1208 AND M9046,RE-INSTALLED SLIDE WAL L PANEL AT 31AB. PERFORMED OPS TEST OF BATTERY PACKS- FOUND NORMAL, REF AMM 33-51-07, 25-21-01.