As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HEAVY SMOKE IN COCKPIT WHEN WE REACHED THE GATE. TURNED OFF PACKS AND SMOKE STOPPED, WAS DEICED IN DENVER. NO SMELL AFTER ENG SHUTDOWN. SMOKE/ODOR IN FLT DECK INSP, FOUND DE-ICE FLUID IN APU INLET AREA. C/W TASK 21-00-01-100- 801, REMOVAL OF CONTAMINATION, CHANGED RECERC FILTERS PER AMM 21-25-01-000-801. NO FURTHER SMELL OR SMOKE NOTED.