As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLL - FLT 3794 - WHEN POWER WAS APPLIED FOR TAKEOFF, CONFIGURATION WARNING LIGHT ON CWP ILLUMINATED. CREW RESET WEU, PROBLEM CONTINUED. AIRCRAFT RETURNED TO GATE. MAINTENANCE REMOVED AND REPLACED THE WEU. OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE. (M)