What was found
EMERGENCY LIGHTS INOP AT DOORS R1, L3, L4. ISLE LIGHTS INOP ALL OF FIRST CLASS AND ROWS 16-31 AND ROWS 39-AFT REPLACED BATTERY PACKS REPLACED BATTERY PACKS M33094, M33093, M 33400,M33405,M33406. ALL LIGHTS WORK AT DOOR R1 , L3 AND ROWS 16 -31. STILL NEED TO GET DOOR L4 AND ROWS 39 AFT LIGHTS WORKING . SEE PITCURES REF AMM33-51-06-960-802 AND SSM 33-51-11-101 . REPLACED EMERGENCY EXIT LIGHT BATTERIES M33408 M33409 AND M33407 IN REFERENCE TO B777 AMM 33-51-06-960-802 LIGHTS AT DOORS 4 RIGHT AND 4 LEFT NOW WORK EXIT PATH LIGHTS FROM ROWS 39 BACK ARE STILL INOPERATIVE SUSPECT BATTERIES M33401 AND M33404 REFERENCE WDM 33-51-58-4 REPLACED BATTERIES M33401 AND M33404 REF AMM 33-51-06-960-802. LIGHTS CAME BACK ON AND PREFORMED OPS TEST OF EMERGENCY LIGHTS REF AMM 33-51-00-710-801. OPS CHECKS GOOD PARTS USED: 99-3351-3-0015,QTY :1