As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PASSENGER CABIN EMERGENCY LIGHTS, BATTERY PACK M1694 CAPACITY CH ECK FAILS (REF AAR NR 1000033377) BATTERY FAILED FUNCTIONAL CHECK DURING C CHECK IN RFD. REMOVED AND REPLACED BATTERY PACK M1694 IAW B737 AMM 33-51-06-96 0-805 AND PERFORMED OPERATIONAL TEST GOOD (WORK ACCOMPLISHED BY V935069 AND AAR QC A-74 V918045) (SDR NO 955).