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Paper 131 -- AN ANALYSIS OF OPERATIONAL ERRORS AND THE INTERACTION WITH TCAS RAS

This research evaluated operational errors (OEs) in Air Traffic Control (ATC). It consisted of two exploratory studies. The first one was a classification of OEs and contextual factors. The second one was an in-depth look at OEs that co-occurred with a Traffic Alert Collision Avoidance System (TCAS) Resolution Advisory (RA) onboard. The results provided a systematic characterization of OEs, with potential use to prioritize future research and interventions. Patterns of error in en route and terminal airspace were found to be slightly different. The absence of D-side controllers and the presence of developmental controllers were associated with higher proximity between aircraft. The second study found evidence of deficient pilot-controller communications during TCAS RA events in the OE reports. The results suggest that, the likelihood of receiving vertical clearances in opposite direction to the RA is higher when the information from the pilot to the controller regarding the RA is incomplete. These findings suggest the need to revisit the concept of down linking RA information to ATC.
Theme: Safety in ATM
Posted by: José Luis Garcia-Chico / Other authors: Kevin Corker
Note: Unset Received On Jan 26, 2007

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