As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN EMERG LIGHT: EMERGENCY LIGHTS STARTED FLASHING DURING FLIGHT. AFTER RESETTING EMER LIGHT SWITCH IN COCKPIT, EMERGENCY LIGHTS REMAINED ILLUMINATED FOR THE DURATION OF THE FLIGHT WITH THE SWITCH IN THE ARM POSITION // SIGNOFF// AFTER TROUBLE SHOOTING, FOUND THE #2 EMERGENCY BATT TO BE BAD. REMOVED AND REPLACED #2 EMERGENCY BATTERY WITH A CUSTOMER SUPPLIED NEW EMERGENCY BATTERY ALL WORK DONE IAW EMB 300 MM 33-52-01 / 400 OPS CHECK GOOD