What was found
FLIGHT 5169 - LOUD NOISE AT MAIN PAX DOOR. AIRCRAFT RETURNED BACK TO CVG AND LANDED SAFELY. REMOVED AND REPLACED PAX DOOR SEAL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLIGHT 5169 - LOUD NOISE AT MAIN PAX DOOR. AIRCRAFT RETURNED BACK TO CVG AND LANDED SAFELY. REMOVED AND REPLACED PAX DOOR SEAL.