As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LIGHT BATTERY PACK/POWER SUPPLY AT POSITION M1763 INOPERATIVE EMERGENCY LIGHT BATTERY PACK/POWER SUPPLY AT POSITION M1673 INOP / [01] REPLACED NEW BATTERY PACK AT POSITION M1673 AS PER B737 REF 33-51-06-960-805. TESTED FOUND NORMAL.;[02] VERIFIED STEP 1