The National Transportation Safety Board determines that the probable cause of the accident was the failure of the radar controllers to detect the conflict and to issue traffic advisories or a safety alert to the flightcrew of the U-21; deficiencies of the see and avoid concept as a primary means of collision avoidance; and the lack of automated redundancy in the air traffic control system to provide conflict detection between participating and nonparticipating aircraft.


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    Titel :

    Aircraft Accident Report - Midair Collision of U.S. Army U-21A, Army 18061, and Sachs Electric Company Piper PA-31-350, N60SE, Independence, Missouri, January 20, 1987


    Erscheinungsdatum :

    1988


    Format / Umfang :

    68 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch