As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN EMERG LIGHTING CHECK RESULT SHOWED ATA 33-51-38 INT LOADS EMER L. FOUND EXT AND INT LIGHTS FLASHING ON 11W EPSU. TRIED NEW BATTERY AND EPSU NO HELP. 11W DISCONNECTED FROM AIRCRAFT. REPLACED EPSU 11W AND BATTERY PACK, NO HELP. FOUND WIRES BELOW SEAT ROW 15 UNDER SEAT TRACK. REPOSITIONED WIRES. CABIN EMERGENCY LIGHT TESTS NORMAL.