What was found
CABIN EMERG LIGHT: DURING FLIGHT CONTINUOUS FLASHING OF CABIN EMERGENCY FLOOR AND DOOR EXIT AND CABIN LIGHTS. WITH SWITCHES EITHER IN ARMED OR ON POSITION. VIDEO TO FOLLOW. CORRECTIVE ACTION: REMOVED AND REPLACED #1 AND #2 EMERGENCY BATTERIES IAW EMBRAER PHENOM 300 A.M.M. 33-52-01. REMOVED #1 P/N 640-13595-00 S/N 006343 INSTALLED P/N 640-13595-00 S/N 005711 REMOVED #2 P/N 640-13595-00 S/N 006342 INSTALLED #2 P/N 640-13595-00 S/N 005861.