The data from flight data recorder and cockpit voice recorder of the Yeti Airlines plane that crashed in Pokhara, Nepal has revealed an engine problem as the reason behind the crash. The Civil Aviation Authority of Nepal has clarified that the first analysis of the flight data recorders has shown that the propellers of both engines were put into the feather position prior to the crash. The pitch of the blades on a propeller engine can be altered so that the blade is almost parallel to the oncoming airflow. This phenomenon is known as feathering. On an aircraft such as the ATR

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