As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SEVERAL PASSENGER CABIN EMERGENCY LIGHTS AND EXTERIOR EMERGENCY LIGHTS INOP. / [01] REPLACED EMERGENCY BATTERY PACK M1673 PERFORMED AFT EMERGENCY EXIT OPS TEST; TEST PASSED PER B737-800 AMM 33-51-06-960-805.;[02] REPLACED EMERGENCY BATTERY PACKS M1670; M2816; M1671; PERFORMED EMERGENCY LIGHTS TEST AS PER REF AMM 33-51-06-960-805. FOUND NORMAL;[03] VERIFIED STEP 1;2