As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LIGHTS BATTERY: EMERGENCY EXIT LIGHTS BEGAN FLASHING IN FLIGHT. FLASHED ON/OFF FOR THE LAST 10 MINUTES OF FLIGHT. LIGHT SWITCH WAS IN ARM POSITION.///SIGN-OFF/// REMOVED AND REPLACED EMERGENCY BATTERIES IAW EMB AMM 33-52-01 CHECKED GOOD.