As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING EMERGENCY BATTERY PACK CAPACITY CHECK, FOUND BATTERY PACK AT DOOR 1R (M33094) AND DOOR 4L (M33407) LOWER CAPACITY. REPLACED M33094 AND M33407 BATTERY PACK AND TEST OF NEW BATTERY PACK FOUND NORMAL REF AMM 33-51-06-960-802 REV 79.