As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEVERAL EXTERIOR AND INTERIOR EMERGENCY LIGHTS INOPERATIVE.<[01] PERFORMED TROUBLESHOOTING AS PER B737 SSM 33-51-11; SSM 33-51-12; SSM 33-51-13; SSM 33-51-14 AND SSM 33-51-21. FOUND EMERGENCY EXIT BATTERY PACKS M1675; M1672 AND M1673 DEFECTIVE. REMOVED AND REPLACED EMERGENCY EXIT BATTERY PACKS LOCATED AT M1675; M1672; M1673 AS PER B737 AMM 33-51-06-960-805. PERFORMED BATTERY PACK REPLACEMENT TEST AS PER B737 AMM 33-51-06-960-805. TEST PASSED.;[02] VERIFIED REPLACED AND TEST