As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BURNING TYPE OF SMELL CAME OUT OF FLIGHT DECK GASPER ON CAPTAINS SIDE ON 2 INSTANCES & THEN DISSIPATED. PERFORMED TROUBLESHOOTING FOR FLIGHT COMPARTMENT FOR CABIN ODORS OR FUMES IAW FIM 79-30-01. NO SIGNS OF SMOKE OR ANY BURNING MATERIALS FOUND. NO OTHER DEFECTS NOTED. ACFT OK FOR SVC.