As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRPLANE HEALTH MONITORING ALERTS RECEIVED FOR THE L1 DOOR WIRELESS EMERGENCY LIGHTING SYSTEM CONTROL UNIT LAMP DRIVER POWER CIRCUIT. REMOVED AND REPLACED THE CONTROL UNIT IAW DMC-B787-A-33-51-07-01A AND L1 DOOR EMERGENCY EXIT SIGN IAW DMC-B787-A-33-51-02. OPERATIONAL CHECKED GOOD.