As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LBB - FLT 3661 - SMOKE COMING FROM REFUEL/DEFUEL PANEL WHEN POWERED ON BY FUELER. REMOVED AND REPLACED REFUEL/DEFUEL CONTROL UNIT IAW CRJ AMM 28-25-18 AND OPS CHECKED IAW CRJ AMM 28-25-00. OPS CHECK GOOD. AIRCRAFT RETURNED TO SERVICE. (M)