What was found
EMERGENCY LIGHTS ARE REMAINING ILLUMINATED WITH SWITCH IN THE ARM POSITION. CONFIRMED. TROUBLESHOT IAW FIM 33-50-00-810-801-A. REMOVED CREW SEATS IAW AMM 25-11-01 FOR ACCESS. REMOVED FLOOR PANEL 223CLF FOR ACCESS TO NR 1 BATTERY. REMOVED LAV PANEL242AZ TO ACCESS NR 2 BATTERY. ISOLATED NR 2 BATTERY AND PERFORMED CHK IN ARM POSITION, NO CHANGE NOTED. ISOLATED NR 1 EMERGENCY BATTERY & PERFORMED CHECK IN ARM, SYSTEM OPS NORMALLY. R & R NR 1 BATTERY WITH REPAIRED UNIT IAW AMM 33-52-01. PERFORMED EMERGENCY LIGHT OPS CHK IAW AMM 33-52-00. OPS CHKD GOOD. CHARGED BATTERIES FOR 90 MINS IN ARM POSITION IAW AMM 33-52-01. CLOSED LAV PANEL 242AZ & COCKPIT FLOOR 223CLF. REINSTALLED CREW SEATS IAW AMM 25-11-01.