What was found
FLT#123, JFK-LAX. 'FUME EVENT DIRTY SOCK SMELL ON DESCENT FORM COMPLETED; REF INFO NOTICE 2017-T015 TSM 05-50-00-810-831-A TYPE 10 EVENT TRANSIENT/MISCELLANEOUS. THE ODOR DISSIPATED IN 10 MINUTES, WITH NO HISTORY OVER 25 FLIGHTS. EVENT ONLY OCCUR IN DESCENT. A/C OK FOR CONTINUED SERVICE'.