As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LIGHTS WOULD NOT ILLUMINATE WHEN SELECTED ON. MAINTENANCE INSPECTED AND REPLACED THE EMERGENCY LIGHT BATTERIES IAW DC-9 MM 33-53-00. LATER ON 02/07/01 MAINTENANCE REPLACED THE EMERGENCY LIGHT POWER SUPPLY FOR RELIABILITY CONCERNS, IAW DC-9 MM 33-53-02.