As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE SEAT LIGHT ABOVE SEAT 9 DOES NOT ILLUMINATE DURING THE EMERGENCY LIGHT TEST IN EITHER THE ARMED OR ON SWITCH POSITION AND POWERED BY EMERGENCY BATTERY POWER. CORRECTIVE ACTION: REMOVED AND REPLACED #2 EMERGENCY BATTERY IAW CE680A MM 33-50-10. LIGHTS OPS CHECKS GOOD