As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
STRONG WET SOCK SMELL BEGAN DURING DESCENT (12,000 FT APPROX). SMELL STAYED UNTIL SHUTTING ENGINE OFF AT THE GATE -ACCOMPLISHED TSM 05-50-00, PERFORMED ENG #1 & #2 RUN UP IAW AMM 71-00-00 AND ISOLATED SYSTEMS AND FOUND SOURCE TO DEICING FLUID TO APU INLET. ACCOMPLISHED DECONTAMINATION OF THE ECS IAW AMM 21-00-00. NO CONTAMINATION FOUND AT THIS TIME. A/C OK FOR SERVICE. NO DEFECTS NOTED AT THIS TIME.