What was found
ON THE GROUND , ENGINE OFF, APU RUNNING, CABIN FILLED UP WITH SMOKE. SMOKE CAME OUT OF THE CABIN WEMACS. SMOKE STOPPED WHEN CABIN PAC WAS TURNED OFF.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ON THE GROUND , ENGINE OFF, APU RUNNING, CABIN FILLED UP WITH SMOKE. SMOKE CAME OUT OF THE CABIN WEMACS. SMOKE STOPPED WHEN CABIN PAC WAS TURNED OFF.