As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY LIGHTS INOP ON L1, R1, RT OVERWING EXITS WHEN POWER IS LOST / PERFORMED TEST OF EMERGENCY LIGHTS AND FOUND 2 EA EPSU BATTERIES INOP IAW TSM 33-51-00-810-812-A. REMOVED AND REPLACED 2 EA EPSU BATTERIES AND OPS CHECK GOOD IAW AMM 33-51-38."