As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN BECAME HAZY SHORTLY AFTER TURNING APU BLEED ON & RT PACK ON. ACCOMPLISHED PACK BURNOUT IAW PG 204 THROUGH V AFTER CLEANOUT OF REHEATER & PACK DUCTS OF DEICING FLUID. NO ODOR OR HAZE IN CABIN AFTER 15 MIN RUNS WITH BOTH BLEEDS & PACKS.