As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAH - FLIGHT 2959 - THE CREW REPORTED THAT AT FL260, SMELLED ELECTRICAL SMOKE WITH NONE VISIBLE. THE SMELL PERSISTED FOR 30-45 SECONDS AND CLEARED WITH THE F/A REPORTING SOME SMELL FROM ROW 7. THE AIRCRAFT LANDED AT IAH WITHOUT INCIDENT. MAINTENANCE PERFORMED GROUND RUNS WITH NO DEFECTS NOTED, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.