As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ACFT RETURNED TO PLATFORM AFTER ENGINES START. A RUBBER BURNING ODOR WITH NO EVIDENCE TO SMOKE. MX PERSONNEL PERFORMED SMOKE OR FUMES IN CABIN CONDITIONAL INSPECTION IAW MM 05-51-56 AND FIM 21-00 TASK 806 PROCEDURE, NO ODOR OR SMOKE EVIDENCES WERE FOUND. THE AIR CONDITIONING SYS TEST WAS PERFORMED IAW MM 21-00-05, ALL CORRECT.