As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 4374 - DURING DESCENT INTO ATL FROM AGS, THE CREW NOTICED A MUSTY ODOR IN THE COCKPIT WHEN AIRCRAFT POWER WAS REDUCED FROM THE CRUISE POWER SETTING. NO FUMES OR SMOKE WAS OBSERVED. THE AIRCRAFT LANDED SAFELY IN ATL. MAINTENANCE DEFERRED THE LEFT PACK IAW MEL NR 21-50-1. CAT C EXPIRING ON 12/10/04. AIRCRAFT OK FOR SREVICE. (M)