As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE PERFORMING MAINTENANCE CHECK OF THE EMERGENCY ESCAPE LIGHTING SYSTEM, BOTH LT AND RT FUSELAGE LIGHTS JUST FORWARD OF ENGINES ARE INOP. REMOVED AND REPLACED OVERWING EMERGENCY EVACUATION BATTERY POWER SUPPLY IAW AMM 33-51. OPS CHECK GOOD.