As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 3846 -SMK- DUE TO SMOKE IN THE COCKPIT WITH APU BLEED. ODOR IN CABIN NOTED. CORRECTIVE ACTION: MAINTENANCE FOUND EVIDENCE OF DE-ICING FLUID IN APU INLET. PERFORMED OIL CONTAMINATION REMOVAL FROM AIR CONDITIONING AND PNEUMATIC SYSTEM PER B737 AMM 21-00. REMOVED AND REPLACED RECIRC FILTERS B737 AMM 21-25.