As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENGINE 2 VIBRATION INDICATION WENT TO 2.2 WHILE IN CRUISE, REDUCED THROTTLES AND VIBRATION LOWERED AND THEN RETURNED TO 2.2.INDICATION, DIVERTED TO CMH. COMPLIED WITH ENGINEERING TECHNICAL NOTICE CR-72-002R1. PERFORMED FUNCTIONAL CHECK FLIGHT. AIRCRAFT RETURNED TO SERVICE.