As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MULTIPLE PAX EMERGENCY LIGHT BATTERIES INOP<[01] PERFORMED TROUBLESHOOTING AS PER B737 AMM 33-51-00-710-801 AND SSM 33-51-13. FOUND M1670 EMERGENCY EXIT LIGHT BATTERY PACK DEFECTIVE.<BR>PERFORMED POWER SUPPLY - BATTERY PACK REPLACEMENT AT POSITION M1670 AS PER REF AMM 33-51-06-960-805. TEST FOUND NORMAL.;[02] VERIFIED STEP 1.;[03] AUDIT C/W PER MPM 52.02.02.