What was found
CABIN EMERG LIGHT: CABIN EMERGENCY LIGHTING WILL NOT ARM. ALL EMERGENCY LIGHTS REMAIN ON WITH THE SWITCH IN THE ARM POSITION. THE EMER LT NOT ARM AMBER EICAS WILL NOT EXTINGUISH REGARDLESS OF SWITCH POSITION. // SIGNOFF // TROUBLE SHOT PER FIM-4885-33-50-00-810-801-A REMOVED BOTH FWD AND AFT EMERGENCY BATTERIES IAW EMBREAER PHENOM 300 AMM 33-52-01 PERFORMED OPS TEST IAW PHENOM 300 AMM 33-52-01-710-801A/500 OPS CHECK GOOD REMOVED FWD BATTERY P/N 6450LS-00 S/N 001294 INSTALLED FWD BATTERY P/N 7450LS-00 S/N 005184 REMOVED AFT BATTERY P/N 6450LS-00 S/N 001185 INSTALLED AFT BATTERY P/N 7450LS-00 S/N 005148