What was found
(CAN) AFTER START, WHEN NR 2 ENGINE BLEED AIR WAS SELECTED ON, SMOKE APPEARED IN THE CABIN. ENGINE AIR SWITCHING VALVE WAS FOUND GROOVED. THE VALVE WAS REPAIRED AND REINSTALLED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(CAN) AFTER START, WHEN NR 2 ENGINE BLEED AIR WAS SELECTED ON, SMOKE APPEARED IN THE CABIN. ENGINE AIR SWITCHING VALVE WAS FOUND GROOVED. THE VALVE WAS REPAIRED AND REINSTALLED.