What was found
DESCENDING THROUGH 4500 FT GOT "DIRTY SOCK" SMELL IN COCKPIT.-COMPLY WITH TSM 05-50-00-810-831 A. PERFORMED ENG 1 & 2 RUN UP IAW AMM 71-00-00. ISOLATED PACK 1 & 2 AND ENGINE BLEEDS. FOUND SOURCE OF SMELL TO BE APU AND PACK # 1.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DESCENDING THROUGH 4500 FT GOT "DIRTY SOCK" SMELL IN COCKPIT.-COMPLY WITH TSM 05-50-00-810-831 A. PERFORMED ENG 1 & 2 RUN UP IAW AMM 71-00-00. ISOLATED PACK 1 & 2 AND ENGINE BLEEDS. FOUND SOURCE OF SMELL TO BE APU AND PACK # 1.