As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING FLIGHT, STEWARDS HEARD STRANGE NOISES COMING FROM LT ENGINE AND INFORMED THE PILOT. NOTHING ABNORMAL IN COCKPIT/ENGINE PARAMETERS OK, SO ONCE ON GROUND AND BEFORE NEXT FLIGHT, THE PILOT STARTED LT ENGINE AND CONFIRMED STRANGE NOISES AND ITT LOWER THAN USUAL VALUES. THE MAINTENANCE TECH FOUND PT DAMAGED.