As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DONT WORK CORRECTLY BATTERY PACK LOCATED BTW STA 559 AND STA 579 LH SIDE AT PASSENGER CABIN (1EA). REPLACED BATTERY PACK LOCATED BTW STA 559 AND STA 579 LH SIDE AT PASSENGER CABIN (1EA) IAW AMM 33-51-06-960-805 STEP 4.E.(5)(6) TEST IS OK.