As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING LANDING ON THE OIL RIG, PILOT REPORTED THAT BOTH ENGINE`S CAUTION LIGHTS CAME ON FOR ENGINE MANUAL, TWIST GRIP AND ENGINE EXCEED ALONG WITH INCREASING NR AND NF. TROUBLESHOOTING ONGOING. MFG WILL INVESTIGATE TO ESTABLISH ROOT CAUSE AND SUPPLEMENT THE REPORT ONCE THE INFORMATION IS AVAILABLE.