As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN EMERG LIGHT: DURING CRUISE FLIGHT AROUND 14,000' WE NOTICED THE CABIN EMERGENCY LIGHTS FLICKERING ON AND OFF RAPIDLY. WE ATTEMPTED TO CHECK THE PLACEMENT OF THE SWITCH TO ENSURE IT WAS SECURELY IN THE AUTO POSITION. THE LIGHTS CONTINUED OFF AND ON UNTIL AIRCRAFT SHUTDOWN ON THE RAMP. REMOVED AND REPLACED FWD EMERGENCY LIGHT BATTERY REF EMB AMM 33-52-01; OPS CHECKED GOOD