As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EPSU SYSTEM TEST SHOWS EPSU AFT L (13WL) FAULT. T/S PER A321 TSM 33-51-00-810-836-A. ENSURED ALL 13WL ASSOCIATED LIGHTING OPS NORMALLY. FRONT FACING BITE ON 13WL SHOWED GREEN " GO" INDICATION. REMOVED CONNECTOR FROM 13WL AND RECONNECTED. PERFORMED EPSU SYSTEM TEST, ALL TEST OK. (LP# 6888409)