What was found
EN ROUTE FROM SJC TO PHX, CREW REPORTED A DIRTY SOCK SMELL COMING FROM ACFT ENVIRONMENTAL SYS. ACCOMPLISHED JOB CARDS 26L00021001, 26L00021002, 26L00021004 & INSPECTED NR 1 & NR 2 ENG NOSE CONES & HOT SECTIONS FOR DAMAGE OR LEAKS. NO DAMAGE OR LEAKS NOTED IAW AMM 72-38-11. FOUND APU INLET DOOR FULL OF OIL, APU DRAIN PLUG WAS LEAKING. WASHED APU INLET DOOR & REMOVED & REPLACED APU DRAIN PLUG O RING. LEAK CHECKED & OPERATIONS CHECKED GOOD IAW AMM 49-90-01. ACCOMPLISHED ECS DECONTAMINATION CARDS, OK FOR SERVICE.