As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN EMERG LIGHT: IN FLIGHT CABIN EMERGENCY EXIT LIGHTS AND AISLE LIGHTS BEGAN TO FLICKER THEN CAME ON STEADY WITH THE SWITCH IN THE ARM POSITION. LIGHTS WERE STILL ILLUMINATED ON THE GROUND WITH SWITCH IN ARM. // SIGNOFF// REMOVED THE FAILED FWD AND AFT EMERGENCY BATTERIES AND INSTALLED SERVICEABLE EMERGENCY BATTERIES REF PHENOM 300 AMM 33-52-01. OPS CHECKS GOOD