As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIRTY SOCK SMELL WHEN PACKS SELECTED ON. THE APU OIL COOLER LEAKING. R & R APU OIL COOLER IAW AMM 49-91-44-0401. ALSO, R & R LEAKING APU FAN OIL COOLER IAW AMM 49-52-51-0401. PRESS WASHED APU COMPARTMENT & AIR INLET DUCT. CLEANED ALL DUCTS FOR OIL COOLER AIR DUCTS AS NEEDED.