As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DESCENT, 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. MAINTENANCE INSPECTED THE LT PACK AND NO DEFECTS WERE NOTED. OPS CHECK GOOD. AC OK FOR SERVICE. (K)