What was found
FLIGHT 5043) DURING CRUISE FLIGHT THE LT ENGINE FAN VIBRATION ENTERED THE AMBER CAUTION RANGE REACHING 2.1. AIRCRAFT RETURNED TO THE DEPARTING CITY (CVG). REPLACED THE LT ENGINE VIBRATION/ACCELEROMETER.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLIGHT 5043) DURING CRUISE FLIGHT THE LT ENGINE FAN VIBRATION ENTERED THE AMBER CAUTION RANGE REACHING 2.1. AIRCRAFT RETURNED TO THE DEPARTING CITY (CVG). REPLACED THE LT ENGINE VIBRATION/ACCELEROMETER.