As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STRONG MUSTY SMELL WHILE DECENDING NOTICED AND REPORTED BY ALL CREW MEMBERS-REF TSM 05-50-00-810-831-A INPS ENG OILS IAW AMM 79-00-00. INSP APU OIL IAW AMM 49-90-00. NO DEFECTS. PERFORMED ENG RUNS IAW AMM 71-00-00. CYCLED PACKS WITH ENG/APU BLEEDS. FOUND SOURCE OF ODOR TO BE ENG 1 BLEED & PACK #1. SEE LP 3561213-2 FOR FURTHER T/S.