As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT DECK LEFT DOME EMERGENCY LIGHT INOP. / [01] PERFORMED T/S PER B737 WDM 33-51-12 AND FOUND BATTERY PACK (M1675) DEFECTIVE.;[02] REMOVED AND REPLACED BATTERY PACK AT POWER SUPPLY M1675 PER AMM 33-51-06-960-805. TEST NORMAL.;[03] VERIFIED STEP 1 AND 2.