As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PHX/DRO - FLT 6255 - AIRCRAFT WAS 15 MILES OUT FROM DRO WHEN THE CREW SMELLED AN ELECTRICAL SMELL IN THE COCKPIT. AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT, AND DEFERRED THE RECIRCULATION FAN PER MEL 21-9. AIRCRAFT WAS RETURNED TO SERVICE. IN SUBSEQUENT MAINTENANCE, FANS WERE INSPECTED, NO DISCREPANCIES NOTED. SEE MRR MASA98215 FOR FINAL FIX. (X)