What was found
FLT#2801, FLL-LAX. 'AT 12,000 FOOT GOT PERMANENT MARKER SMELL TRANSIENT ABOUT 1 MINUTE.THEN AT 3,000 GOT DIRTY SOCK SMELL THAT REMAINED UNTIL WE TURNED OFF PACK 1. SMELL DISSIPATED AFTER PACK OFF; COMPLIED WITH INFO NOTICE 2017-T015, SECTION B2. IDENTIFIED ODOR AS A TYPE 1. APU JUST RECENTLY PLACED ON MEL MDDR# 579610. DECONTAMINATION LEVEL A WAS ACCOMPLISHED PER AMM 21-00-00-615-802. RAN PACK 1 WITH ENG 1 NO SMELL, RAN PACK 2 WITH ENG 2 NO SMELL. AIRCRAFT OK FOR SVC.'