As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY EXIT LIGHTS TEST FAILS EPSU AFT L INTERNAL FAULT. FOUND SHORT UNDER 2ND FROM LAST SEAT ABC, ACCOMPLISHED ENVIRONMENTAL SPLICE, USED POWER SUPPLY FROM ABOVE DOOR 1L TO OP CK. ACCESS PANEL ABOVE 1L REMOVED AND STOWED BEHIND PONY WALL AT 1AB, BAD POWER SUPPLY LOCATED ABOVE 1L DOOR. REPLACED POWER SUPPLY. OP CHECKS ARE NORMAL.