As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN PASSENGER, EMERGENCY LIGHTS BATTERY PACK M1673 CAPACITY CHECK FAILS.(REF AAR NR 99980530). REMOVED AND INSTALLED NEW EMERGENCY LIGHTS BATTERY PACK M1673 AND PERFORMED TEST. TEST GOOD ALL IAW B737 AMM 33-51-06-960-805 (WORK ACCOMPLISHED BY V943499 AND AAR QC V918832)