As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ACFT RETURNED TO GATE DUE TO SMOKE COMING FROM BACKLIGHTING OF F/O CONTROL COLUMN REMINDER UNIT. THE BRIGHTNESS WAS TURNED DOWN AND THE SMOKE STOPPED. DEFECT J55648 RAISED AND CONTROL COLUMN REMINDER UNIT REPLACED. NO FURTHER PROBLEM.