As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON PREFLIGHT, FOUND THE EMERGENCY EXIT LIGHTS WILL NOT ARM OR TEST FROM THE OVERHEAD PANEL. ALL LIGHTS OPERATE WHEN THE TEST BUTTON IS PRESSED ON THE EMERGENCY LIGHTS POWER SUPPLY. REPLACED EMERGENCY EXIT LIGHTS O/H PANEL IAW AMM 33-51-08-4. CKS OK.