As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) PILOT REPORTED THAT AFTER TAKEOFF OUT OF KONT CLIMBING OUT OF FL 180 THEY HEARD A LOUD BANG ON RIGHT ENGINE AND NOTICED N1 ON RIGHT ENGINE DROP TO HALF OF LEFT ENGINE AND FELT THE A/C YAW. HAPPENED VERY QUICK AND THEN EVERYTHING CAME BACK TO NORMAL REST OF FLIGHT.INVESTIGATION ONGOING .