As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEVERAL EMERGENCY LIGHTS INOPERATIVE THROUGHOUT THE CABIN.<[01] REPLACED BATTERY PACKS M1676 AND M1673. EMERGENCY LIGHTS-OPERATIONAL TEST PERFORMED NORMAL. REFERENCES B737 AMM 31-51-06-960-805 AND AMM 33-51-00-710-801.;[02] VERIFIED STEP 1