As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND EMERGENCY LIGHT AT UPPER DECK NOT ILLUMINATING AFT ELEC IAW AMM 33-51-04-902-001-001, REV 99. REPLACED THE BATTERY AND CONDITION CHECK NORMAL IAW AMM 33-51-04-902-001-001, REV 99. PERFORMED POWER SUPPLY TEST AND RESULT WAS SATISFACTORY.