As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING CLIMBING OUT THE CREW NEEDED TO SHUT THE LT ENGINE DOWN. THE ACFT RETURNED FOR A SAFE LANDING. BORESCOPE INSPECTION REVEALED EXTENDED DAMAGE AT NUMEROUS LOCATION IN THE ENGINE. THE ENGINE WILL BE SENT FOR INVESTIGATION AND REPAIR.