As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REAR ISLE EXIT LIGHTS DO NOT ILLUMINATE / PERFORMED EPSU BITE CHECK IAW AMM 33-51-00-710-001-A, FOUND MAINTENANCE MESSAGE ""EPSU BATTERY EMER L"". PERFORMED TSM 33-51-00-810-802-A. REMOVED AND REPLACED BATTER;Y FOR EPSU 11WL IAW AMM 33-51-38-000-002 AND 33-51-38-400-002. OPS CHECK GOOD IAW AMM 33-51-00-710-001-A."