What was found
DIRTY SOCK SMELL AFTER CLIMB THRUST SET. FLIGHT RETURNED TO FIELD AT PHX & LANDED WITHOUT FURTHER INCIDENT. MX COMPLIED WITH JOB CARDS 26L00021001, 26L00021002 & 26L00021004 TO CORRECT & DECONTAMINATE. REPLACED APU OIL DRAIN PACKING OPERATIONS & LEAK CHECKED GOOD. CLEANED APU AIR INTAKE DUE TO HEAVY SOOT BUILD UP, PERFORMED TASK 49-16-00-100-001-A IAW AMM. R & R AVIONICS DUST FILTER CARTRIDGE IAW JOB CARD 26L00005004. OPERATED BOTH ENGS AT CLIMB DETENT, PACKS ON ALL BLEED SOURCES WITH NO REOCCURRENCE OF ANY ODOR.