As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE CREW OF THE HELICOPTER WAS FORCED TO MAKE AN EMERGENCY LANDING ON THE OUTSKIRTS OF PARIS DUE TO LEFT ENGINE LOW OIL PRESSURE AND SMOKE IN THE CABIN. TROUBLESHOOTING FOUND THE COMPRESSOR WET WITH OIL (POSSIBLY LEAKING FROM THE NR 3 BEARING CAVITY) AND OIL PRESSURE NOT CLIMBING TO REQUIRED PRESSURE DURING GROUND START. ON-GOING.