As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LIGHTS ON SEAT ROWS 7-14 ABC DO NOT COME ON. SUPPORT TASK NSA EMX NR 00158 REMOVED THE BATTERY FROM BATTERY CHARGER AND INSTALLED SERVICEABLE BATTERY PACK IAW B737 AMM 33-51-06-360-805. OPERATION CHECK GOOD IAW B737-800 AMM 33-51-00-720-801. DATA WAS TRANSCRIBED FROM NSA EMX NR 00158, WORK ACCOMPLISHED BY V936328