As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED FUMES IN THE COCKPIT, NO EMERGENCY DECLARED. STRONG BURNING ODOR FROM ISOLATED PACKS. RAN BOTH ENGINES AND BOTH PACKS IN NORMAL AND ISOLATED CONFIGURATIONS INSPECTED INLETS AND EXHAUST. INSPECTED ALL CARGO COMPARTMENTS. NO UNUSUAL ODORS OR BURNING ODORS NOTED AS ASSOCIATED WITH FIM 21-00-01 A/C OK FOR SERVICE