What was found
(CAN) DURING CLIMB THE NR 4 ENGINE STARTED TO BACKFIRE AND SHAKE. THE ENGINE WAS SHUT DOWN AND THE PROPELLER FEATHERED. THE FLIGHT RESUMED WITHOUT INCIDENT.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
(CAN) DURING CLIMB THE NR 4 ENGINE STARTED TO BACKFIRE AND SHAKE. THE ENGINE WAS SHUT DOWN AND THE PROPELLER FEATHERED. THE FLIGHT RESUMED WITHOUT INCIDENT.