What was found
DURING BOTH ENGINE STARTS, THE EMER LT NOT ARM AMBER EICAS BRIEFLY ILLUMINATED. SWITCH IN ARM POSITION. EICAS EXTINGUISHED AFTER EACH START. AT FL430 ALL INTERIOR EMERGENCY LIGHTS ILLUMINATED. THE SWITCH IN ARM POSITION. NO EICAS MESSAGE PRESENT. CYCLED TWICE TO OFF THEN ARM. LIGHTS STILL ILLUMINATED. NO EICAS. AFTER LANDING, ALL INTERIOR EMERGENCY LIGHTS STARTED BLINKING ON AND OFF. R & R NR I & 2 EMERGENCY LIGHT BATTERIES IAW AMM 33-52-01 OPS CHECK GOOD AT TIIIS TIME