As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LIGHT BATTERY LOW MESSAGE DISPLAYED. R & R EMERGENCY LIGHTING POWER SUPPLY PER AMM 33-51-01-400-802 & AMM 33-51-01-000-802. ACCOMPLISHED OPERATIONAL TEST AMM 33-51-01-700-802. FUNCTIONAL TEST AMM 33-50-00-700-801 AND AMM 33-50-00-700-802 ALL PASSED. THIS CLEARS DMI. PLACARDS REMOVED