As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CABIN EMERGENCY LIGHT FAILED TO ILLUMINATE DURING EMERGENCY LIGHT TEST-C/A-COMPLETE:REMOVED AND REPLACED AFT CABIN EMERGENCY BATTERY UNIT IAW EMB 170 AMM 33-50-01/400, OPS CK GOOD IAW EMB 170 AMM 35-50-01/500, NO FURTHER DEFECTS NOTED