As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT - 2319 - EWR - CREW REPORTED BURNING ODOR IN COCKPIT FOR ABOUT 5 SECONDS. NO SMOKE OR MESSAGES NOTICED. EWR MX RAN ENGINES AND PACKS, INSPECTED COCKPIT FOR ODOR AND SMOKE BUT NO SMOKE OR ODOR WAS NOTICED. ALL OPERATIONAL TESTS WERE PERFORMED SUCCESSFULLY. ACFT WAS APPROVED TO RETURN TO SERVICE.