What was found
DURING NON-ROUTINE CHECK, FOUND CID'S PANEL WILL NOT TEST EMERGENCY LIGHTS. MAINTENANCE REPLACED BATTERY OF THE EMERGENCY POWER SUPPLY UNIT AND FUNCTIONAL CHECK WAS NORMAL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING NON-ROUTINE CHECK, FOUND CID'S PANEL WILL NOT TEST EMERGENCY LIGHTS. MAINTENANCE REPLACED BATTERY OF THE EMERGENCY POWER SUPPLY UNIT AND FUNCTIONAL CHECK WAS NORMAL.