What was found
TASK CARD 26004 MAIN CABIN OVERWING EMER LIGHTING INOPERATIVE. PERFORMED TROUBLESHOOTING IAW WM 33-50-01 & SSM 33-50-00. DISCOVERED CONNECTOR P377 J377 DISCONNECTED AT FS 661-48 REQUIRED. R & R BATTERY PACK AT PS 43 LOCATION IAW AMM 33-51-17-000-801-A02 & 33-51-17-400-801-A02. PERFORMED OPERATIONS CHECK OF THE EMER SYS IAW AMM 33-51-00-710-802-A03. OPERATIONS TESTED GOOD. PERFORMED OPERATIONS CHECK OF THE EMER POWER SUPPLY UNIT IAW AMM 33-51-17-710-801-A02. OPERATIONS TESTED GOOD.