As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TEST OF EMERGENCY LIGHT SYSTEM CREW REPORTED THREE FLOOR PROXIMITY LIGHTS AND FOUR OVERHEAD LIGHTS TO BE INOPERATIVE. MAINTENANCE REMOVED AND REPLACED EMERGENCY LIGHT POWER SUPPLY UNIT BATTERY AT POSITION 20LN. OPS CHECK WAS GOOD AND AIRCRAFT WAS RETURNED TO SERVICE. (M)