What was found
EMERGENCY LIGHTS INOP AT OVERHEAD BINS POSITIONS 14LH; 17LH; 24LLH AND EXIT SIGN AT BIN 18 LH. ; EMERGENCY LIGHTS INOP AT OVERHEAD INS POSITIONS 14LH; 17LH; 24LLH AND EXIT SIGN AT IN 18 LH. / [01] REMOVED AND REPLACED POWER SUPPLY BATTERY PACK AT M1690 POSITION AS PER AMM 33-51-06-960-805.PERFORMED INSTALLATION TEST FOUND NORMAL.; [02] VERIFIED STEP 1; [03] REMOVED AND REPLACED BATTERY PACK AT M1690 AS PER REF B737-AMM-33-51-06-960-805. INSTALLATION TEST NORMAL AT POSITIONS 14LH; 17LH; 24LH AND EXIT SIGN AT BIN 18LH.; [04] VERIFIED CORRECTION IN STEP 3