As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ABNORMAL MILDEW ODOR DETECTED BY COCKPIT AND CABIN CREW. ODOR DISPUTED AFTER DESELECTING PACK 1. PERFORMED PACK BURN OUT IAW AMM 21-00-00 AND R & R RECIRCULATION FILTERS IAW AMM 21-21-41. STILL NOTICEABLE CABIN. R & R NR 1 AND NR 2 PACK OZONE FILTERS IAW AMM 21-51-41. OPS AND LEAK CHECK GOOD AT THIS TIME.