What was found
FLT 1099, LGA-MCO. DIRTY SOCKS SMELL ON DESCENT INTO MCO, BETWEEN 4000' AND 2000'; VERIFIED SOURCE OF ODOR COMING FROM APU, SEE ITEM 2 FOR APU DEFERRAL. COMPLIED WITH INFO NOTICE 2017-T015I SECTION A. PERFORMED LEVEL A TYPE 1 DECONTAMINATION OF THE ECS REF AMM 21-00-00-615-802 A/C OK FOR SVC.