As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT IN BASE MAINTENANCE: OPERATIONAL TEST OF PASSENGER CREW DOOR SWITCH POWER SUPPLIES WITH EMERGENCY EXIT LIGHT SWITCH (4WL) FAILED. MAINTENANCE PERFORMED TROUBLESHOOTING PROCEDURE TSM 23-73-00-810-827-A AND REPLACED DEU-DECODER ENCODER UNIT-B PER AMM 23-73-47-400-001-A. PERFORMED A SATISFACTORY OPERATIONAL TEST OF PASSENGER CREW DOOR SWITCH POWER SUPPLIES WITH EMERGENCY EXIT LIGHT SWITCH (4WL) IN PER AMM 33-51-00-720-001-A.