As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE: WHILE PERFORMING EMERGENCY LIGHTS TEST, FOUND LEFT HAND SEAT ROWS 18-25 EMERGENCY LIGHTS INOPERATIVE. REMOVED AND REPLACED AND PERFORMED A SATISFACTORY OPERTIONAL CHECK OF NEW EMERGENCY POWER SUPPLY. PER B737-MAX8-AMM 33-51-06-960-803