As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EPSU UNIT (11WL) INOPERATIVE. EMERGENCY EXIT LIGHTS FAIL EMERGENCY LIGHTING TEST, EPSU FAULTING DURING SCHEDULED MX. REMOVED AND REPLACED (11WL) EPSU IAW 33-51-38-400-0001-A AMM. OPS CHECK GOOD. NO FURTHER DEFECTS NOTED. A/C OK FOR SERVICE.