As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING EMERGENCY LIGHT TEST, EPSU AFT LEFT INT LOAD FAULT NOTED AND THREE AFT EXIT MARKERS DO NOT LIGHT UP. REMOVED AFT EPSU.INSTALLED SERVICEABLE CONDITION EPSU INTO AFT LOCATION. OPS CHECK SATISFACTORY AT THIS TIME. REF AIRBUS 319/320 AMM 33-51-38.