As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE COCKPIT EMERGENCY LIGHTS WOULD NOT TEST. MAINTENANCE INSPECTED AND REPLACED THE COCKPIT EMERGENCY LIGHT BATTERIES IAW DC-9 MM 33-53-00. LATER ON 02/13/01 MAINTENANCE REPLACED THE EMERGENCY LIGHT POWER SUPPLY AS A RELIABILITY PRECAUTION IAW DC-9 MM 33-53-02.