As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY EXIT AISLE LIGHTS FROM SEAT 12C TO 20C (4EA LIGHTS) DID NOT COME ON DURING TEST.<[01] 01 - REMOVED AND REPLACED BATTERY PACKS AT SEAT 7A AND 17A PER [AMM 33-51-06-960-805-NG (POWER SUPPLY - BATTERY PACK REPLACEMENT - PERMANENT)] OPS CHECK GOOD.