As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED. AISLE SEAT LIGHT AND CEILING LIGHTS ON ROWS 26 AND 28 ON BOTH LEFT AND RIGHT SIDE OF CABIN INOPERATIVE. REMOVED AND REPLACED BATTERY PACK ON POWER SUPPLY ON DOORS 3L AND 3R (AALA202011279006), PER AMM 33-51-06-960-802.