As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE ACCOMPLISHING TASK CARD 78233001 LIGHTS FROM SEAT ROW 25 AFT ON LEFT SIDE OF AIRCRAFT AND CENTER AFT GALLEY LIGHT FAILED 15 MIN CHECK AFTER DEEP CYCLE OF BATTERIES. GROUNDED - YES. REMOVED AND REPLACED BATTERY PACK AT POWER SUPPLY M1673 AND M1672 REF AMM 33-51-06.BATTERY PACKS RECHARGED AS REQUIRED AND OPS CK GOOD, REF AMM 33-51-06.