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Poster communications

Toward a Non Stabilized Approach assistant based on human expertise

Abstract : 97% of Non-Stabilized Approach (NSA) are continued until landing going against Standard Opera- tional Procedures (SOP). For some of these approaches, the reason is a lack of situation awareness for others it is because of operational constraints that standard SOP do not take into account like ATC, remaining fuel on board, weather... Most of the time everything goes well but pilots often admit afterwards that they should have go-around and that safety margins were greatly reduced. In the frame of Clean Sky 2 JU, the HARVIS (Human Aircraft Roadmap for Virtual Intelligent System) project aims to identify how cognitive computing algorithms implemented in a digital assistant could support the decision making of a single pilot in complex situation at horizon 2035+. Such a digital assistant would have to mimic human behavior like being adaptive, interactive and contextual. To answer the NSA problem, this assistant could be fed with aircraft parameters and contextual information (ATC, weather, pilot physiological state...) and provide alerting in case of parameters deviations, suggestions of corrective action or even go-around advisories like a Pilot Monitoring is doing today in multi-crew operations. Our innovative approach is to use expertise from a large number of pilots on many relevant sce- narios to classify human judgement on real flight trajectories instead of relying on rules like SOP. Relevant segments of NSA based on Flight Data Recordings (FDR) and operational constraints will be presented on a web interface displaying parts of the flight deck for the pilots to give their judge- ment about the necessity to go-around or not. Thanks to this labelling, an assistant will be trained to recognize these situations and will provide real time support to decision-making. Unlike existing alerting and decisions-aided systems that are based on trajectory prediction and not human expertise, our assistant will be adaptive to the situation, being discreet if the approach goes well and more intrusive/directive when things go wrong. Instead of relying on the sole Pilot Monitoring point of view, the Pilot Flying will benefit from the expertise of hundreds of pilots. The acceptance of the assistant should be strengthened as a result of this original approach. This assistant will contribute to make flight more safe, economic and ecologic. As it will only advise and not make corrective actions, pilots will have the possibility to keep flying manually voluntarily contributing to maintaining their skill level. As a consequence, they will be more efficient in case of autopilot failure, thus contributing to safety. The argument is also economic and ecologic as the assistant may also decrease the number of go around by reducing the number of NSA. The implementation of HARVIS NSA assistant will be conducted in 2020 and user tests in 2021.
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Poster communications
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Contributor : Laurence Porte <>
Submitted on : Tuesday, September 8, 2020 - 2:41:37 PM
Last modification on : Thursday, September 17, 2020 - 3:12:18 AM


  • HAL Id : hal-02933502, version 1



Alexandre Duchevet, Géraud Granger, Jean-Paul Imbert, Théo de la Hogue, Antonio Leopoldo Rodriguez Vasquez, et al.. Toward a Non Stabilized Approach assistant based on human expertise. ICCAS 2020, 1st International Conference on Cognitive Aircraft Systems, Mar 2020, Toulouse, France. ⟨hal-02933502⟩



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