As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT#710, SDQ-JFK. SLIGHT & INTERMITTANT DIRTY SOCK SMELL ON DESCENT FOLLOWED BY STRONG SMELL UPON APU BLEED USE AT GATE; PER INFO NOTICE 2017-TO15N. PERFORMED LEVEL A DECONTAMINATION PER AMM 21-00-00-615-802-A. CONDUCTED EXTERIOR WALK AROUND & INSPECTED APU NO VISIBLE LEAKS FOUND. ISLOATED ENGINES & APU BLEED. NO ODOR WAS PRESENT. ACRF OK FOR CONT SVC