As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MUSTY DIRTY SOCK ODOR WHEN THE NR 2 PACK RUNS, FAULT CAUTIONS ASSOCIATED WITH OPERATIVE SIDE NOT DISPLAYED. PERFORMED A NR 2 PACK RESIDUAL BURNING WITH APU & NR 2 ENGINE IAW AMM 21-00-0 & AMM 71-00-00. NO ODORS NOTED DURING EITHER OPERATION. NO SIGNS OF OIL IN BLEED DUCTING NOTED. CLEANED RESIDUAL OIL IN APU BAY, NO LEAKS NOTED.