As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN TESTING EMERGENCY LIGHTS GET EICAS EMERGENCY LIGHT BATT FAULT AND CENTER AILSE LIGHT CEILING BY FORWARD LAV AND BOTH INDICATORS BY FORWARD SERVICE LIGHTS DO NOT COME ON WITH CMC FAULT CODES 33500001UT1 AND 33500002UT1. CHARGED THE EMERGENCY LIGHT POWER UNIT BATTERIES IAW AMM 33-50-01. PERFORMED EMERGENCY LIGHTING OPERATIONAL TEST IAW AMM 33-50-00. OPS CHECK GOOD.