As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING EMERGENCY LT. OPS TEST MESSAGES EPSU INT LOAD FWD L AND EPSU INT LOAD AFT L APPEARED. / PERFORMED A320 TSM 33-51-00-810-807-A, FOUND MULTIPLE LAMPS OUT ON LH FWD & LH AFT EMERGENCY EXIT SIGNS. REMOVED & REPLACED MULTIPLE LAMPS ON LH FWD & LH AFT EMERGENCY EXIT SIGNS IAW A320 AMM 33-51-11-000/400-001-A OPS CHECK GOOD AT THIS TIME, NO MESSAGES PRESENT ON EPSU."