As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: EMERGENCY AISLE FLOOR PATH LIGHTING REMAINS ILLUMINATED FROM ROWS 24 TO 30. FOUND WCU 27 INOPERATIVE CORRELATED WITH MMSG 33-12127. ACCOMPLISHED FIM 33-50-F1-P0A-421A. REMOVE AND REPLACED WCU (AALA202512058858) AND WBU (AALA202512059023). PER AMM 33-51-07, TEST PASSED.