What was found
FLT#1189, JFK-SAN. "MILD PERSISTENT ODOR NOTED, IN CABIN DURING FINAL APPROACH. APPARENT SOURCE WAS AIR CONDITIONING SYSTEM. ODOR PERSISTENT THROUGHOUT CABIIN. ODOR SIMILAR TO DIRTY SOCKS ODOR DISSIPATED AFTER LANDING; PERFORMED IDLE AND HIGH POWER ENG RUN. COULD NOT DUPLICATE ODOR. COMPLIED WITH INFORMATION NOTICE 2017-1015. SECTION A ISOLATED FAULT TO TYPE 10 (MUSTY) PER TSM 05-50-00-810-085-B/TSM 05-50-00-810-085-D. AC OF FOR SERVICE. MCC NOTIFIED."