As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE AIRCRAFT WAS NOT GROUNDED. **AHM ALERT** CLASS 02 - DOOR 1 RT REMOTE WELS CONTROL UNIT CONFIGURATION DOES NOT AGREE WITH OTHER WIRELESS EMERG LIGHTING SYS CONTROL UNITS. REMOVED AND REPLACED CLASS 2 WELS CONTROL UNIT (AALA201711109014) AND BATTERY PER AMM 33-51-07. OPERATIONAL CHECK GOOD.