As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STRONG MUSTY SUCK ODOR NOTED BY CABIN CREW & PASSENGERS FROM 10K & BELOW. COCKPIT DID NOT SMELL ANYTHING, PERFORMED ENGINE IDLE RUNS ON ENG NR 1 & 2 IAW AMM 71-00-00. RAN PACKS 1 & 2 WHILE ENGINE RAN AND ISOLATED THEM TO DETERMINE SMELL IAW AMM 36-11-00. COULDN’T DUPLICATE SMELL. . A/C IS OK FOR CONTINUED SERVICE