As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: AN EMERGENCY WAS DECLARED DUE TO: ENGINE NUMBER 1 VIBRATION AT CRUISE. SUSTAINED LEVELS GREATER THAN 1.0 ACCOMPANIED BY AUDIBLE OR AIRFRAME VIBRATIONS; AIRCRAFT DIVERTED TO AND LANDED SAFELY AT CLT. REMOVED TOOLING FROM PREVIOUS JOB INSIDE THE NUMBER 1 ENGINE SPINNER CONE, INSPECTED NO DAMAGE NOTED, REMOVED AND REINSTALLED SPINNER CONE. VIBRATION CHECK GOOD 0.3 NO FURTHERDEFECTS NOTED. PER AMM 72-21-01,