As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN EMERG LIGHT: DURING FLIGHT NOTICED THAT THE CABIN EMER LIGHTS WERE ILLUMINATED WITH THE EMER LT SWITCH IN THE ARM POSITION. THE EMER LIGHTS STARTED TO FLICKER AFTER A PERIOD OF TIME. REMOVED AND INSTALLED 2 NEW #L AND #2 EMERGENCY LIGHT BATTERIES IAW EMB-505 AMM 33-52-01, OPS CHECKS PASSED.