As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLIMB OUT FROM A SIMULATED ENGINE FAIL USING THE TRAINING SWITCH IN A SA365. SMOKE AND FUMES IN THE COCKPIT PREDOMINATELY ON COPILOT SIDE. NOTICED THE HEAT LEVER WAS SLIGHTLY FORWARD SHUTOFF, SMOKE AND FUMES REDUCED AND WENT AWAY. RETURNED TO FIELD AND LANDED. FOUND OIL LEAKING FROM SPLIT LINE OF COMPRESSOR MODULES 1 AND 2, ON NR 2 ENG CAUSED OIL INGESTION INTO BLEED AIR HEAT SYS, AFTER INSPECTING ENGINE IT IS DETERMINED THAT A MODULE 2-3 REPLACEMENT IS REQUIRED.