As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LBB - FLIGHT 4418 THE CREW REPORTED A BURNING SMELL COMING FROM THE BOARDING AREA. THE AIRCRAFT WAS RELEASED ON MEL # 23-81-02, AND SUBSEQUENTLY LANDED IN IAH WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED THE BACK UP COMM DISPLAY, OPERATIONALLY TESTED WITH NO DEFECTS, REMOVED THE MEL, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.