As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE ENGINE WAS IN FLIGHT WHEN IT SUFFERED A FAILURE. THE ENGINE WAS SHUTDOWN AND THE AIRCRAFT LANDED. AN INVESTIGATION FOUND THAT THE BOLT HEAD OF A 1ST STAGE CARRIER MACHINE HEX BOLT HAD FAILED. IT WAS INGESTED BY THE 1ST STAGE PLANETARY GEAR SYSTEM. THE SUBSEQUENT FAILURE ON THE 1ST STAGE SUN GEAR AND 1ST STAGE PLANETARY GEARS CAUSED EXCESSIVE VIBRATION AND AN OVERSPEED CONDITION.