What was found
EMERGENCY LIGHTS, OPS CHECK, FOUND ALL ECONOMY PLUS SEATS AISLE LIGHTS WILL NOT TURN ON DURING TEST (ROW 5-1) IAW WDM 33-51-21-8, FAULT LIKELY ISOLATED FROM M2816 TO M1386, TRIED SLAVING IN NEW BATTERIES IAW AMM 33-51-06-960-805, 2 NEW POWER SUPPLIES, & 2 KNOWN GOOD POWER SUPPLIES FROM ZONE B ON ACFT IAW AMM 33-51-06-960-806. FIRST CLASS EMERGENCY LIGHTS WERE DISCONNECTED & MOMENTARILY WENT ON AT ROW 1 WHEN TESTING NEW POWER SUPPLY AND WENT OUT AGAIN AS FIRST CLASS LIGHTS WERE CONNECTED TO ROW 3. FAULT LIKELY REQUIRES FURTHER WIRING CHECKS IAW FIM 33-50, TASK 801. ELECTRICAL CONNECTOR TO M2816 POWER PACK REMAINS DISCONNECTED AT CLOSE OUT CEILING PANEL & EMERGENCY AISLE LIGHTS DISCONNECTED FROM ROWS 2-5 CHKD WIRE CONTINUITY FROM CONNECTOR D14812 AT EMERGENCY BATTERY PACK M2816, PIN 12 TO CONNECTOR D12052 PIN 2. CONTINUITY CHKD GOOD. CHECKED FOR GROUND AT D12052 PIN 5. CHKD GOOD. T/S IAW FIM 33-50, TASK 801, & FOUND 4 CHAFED WIRES ADJACENT TO FLOOR PROXIMITY LIGHTS AT FIRST CLASS SEAT 5B. REPAIRED WIRES IAW SWPM 20-30-12 AND WDM 33-51-12-8. FOLLOWED AMM 33-51-11 FOR FLOOR PROXIMITY LIGHT ASSY. EMERGENCY LIGHTS IN CABIN ARE NOW GOOD, OPS CHKD OKAY.