As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 2875 IAH-MFE, THE CREW REPORTED A BURNING ELECTRICAL SMELL IN THE COCKPIT. THE AIRCRAFT RETURNED TO IAH AND LANDED WITHOUT INCIDENT. MAINTENANCE PERFORMED AN INSPECTION AND SYSTEM CHECKS. THE BURNING SMELL COULD NOT BE DUPLICATED AND THE DISCREPANCY WAS CLEARED.