What was found
HEAT VALVE FAILED IN OPEN CAUSING RAW BLEED AIR TO ENTER CABIN. CABIN FILLED WITH SMOKE (IFE).
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
HEAT VALVE FAILED IN OPEN CAUSING RAW BLEED AIR TO ENTER CABIN. CABIN FILLED WITH SMOKE (IFE).