What was found
AIRCRAFT IN BASE MAINTENANCE: EMERGENCY AREA AISLE LIGHT ABOVE LEFT HAND SEAT ROW 19 IS UNSERVICEABLE. PERFORMED TROUBLESHOOTING AT EMERGENCY AREA AISLE LIGHT ABOVE LEFT HAND SEATROW 19, NO VOLTAGE AND GROUND FOUNDED ON THECONNECTOR D11321 FOR EMERGENCY LIGHT LOCATED AT ROW 19ABC. DURING FURTHER TROUBLESHOOTING, FOUND CONNECTOR D12002 DISCONNECTED FROM M1676 BATTERY POWER SUPPLY, RECONNECTED CONNECTOR D12002 TO BATTERY POWER SUPPLY, PERFORMED SATISFACTORY OPS CHECK, THEN CHARGED M1676 BATTERY POWER SUPPLY, PER B737-NGWDM 33-51-12 PAGE 3.1, WDM 33-51-13, WDM 33-51-11,B737NG FIM 33-50-00-810-801, B737NG AMM 33-51-06-960-806, AND B737NG AMM 33-51-06-610-802.