As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
At rotation had a loud engine vibration on Left engine. Inspected eng. intake, exhaust; opened cowlings & inspected; close cowlings; BITE AVM per MM77-31-00. Eng. Insp. per MM71-00-47. Ran eng. Parameters & fan blade damage within limits.