As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - FLT 3474 - DURING PRE-FLIGHT INSPECTION, THE CREW REPORTED A BURNING SMELL IN THE COCKPIT. MAINTENANCE FOUND A LOOSE CONNECTOR ON THE FIRST OFFICER'S SIDE GENERATOR CONTROL UNIT. MAINTENANCE RESECURED THE CONNECTOR AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE. (M)