As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ODOR OF UNKNOWN ORIGIN NOTICED ON FLIGHT DECK AND CABIN, DESCENDING THROUGH 15000'. PERFORMED IDENTIFICATION OF THE CAUSE ODORS AS SMOKE IAW TSM 05-50-00-810-831-A. NO ODORS PERSENTS. PERFORMED (ECS) DECONTAMINATION PROCEDURE AS REQUIRED IAW 21-00-00 NO ORDERS PRESENT AT THIS TIME. ACFT OK FOR SERVICE.