United States Department of Transportation
i
Analysis of reportable events in Kansas City air route traffic control center
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2017-02-10
[PDF-357.27 KB]
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Edition:Final report
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Abstract:The implementation of Controller‐Pilot Datalink Communications (CPDLC) in domestic en route airspace will change the controllers’ and pilots’
tasks, which will, in turn change the types of observed errors. This study characterizes the current (pre‐implementation) pilot and controller
errors at the expected initial implementation site for CPDLC. The analysis included 1,761 mandatory occurrence reports (MOR); 670 reports
related to pilot/controller error—nearly 70% of these related to loss of communication. The majority (20%) of reports that included
information on how the event was discovered involved an aircraft that was transferred into a sector without radio communications. Loss of
communication events tended to be more frequent for General Aviation than for Commercial aircraft. Of the reports that cited a potential
cause for the loss of communication, the most common cause was mechanical issues, followed by the failure of the controller to issue the
frequency change or the issuing of the wrong frequency. Forty‐three Pilot Deviation occurrences were examined—the majority of these
included a loss of communication event. Many of the identified factors could be mitigated by CPDLC. These results contribute to a baseline of
communication performance, prior to the implementation of CPDLC, and can be compared to a future analysis of post‐implementation
performance.
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