Title:
Context dependent total energy alerting system for the detection of low energy unstabilized approaches

dc.contributor.advisor Pritchett, Amy R.
dc.contributor.advisor German, Brian J.
dc.contributor.author Portman, Michael Aaron
dc.contributor.committeeMember Clarke, John-Paul B.
dc.contributor.department Aerospace Engineering
dc.date.accessioned 2020-09-08T12:41:02Z
dc.date.available 2020-09-08T12:41:02Z
dc.date.created 2019-08
dc.date.issued 2019-07-05
dc.date.submitted August 2019
dc.date.updated 2020-09-08T12:41:02Z
dc.description.abstract This thesis examines context dependent total energy alerting to protect against low energy unstable approaches in commercial aviation operations. Currently, many individual states are monitored independently to identify unstable approaches, rather than an integrated single assessment of total energy. An alert would also have to be context dependent, integrating the individual states with awareness of phase of flight, approach profile modeling, and expected pilot response to individualize the alert’s activation threshold for each approach. This thesis details a design of such a context dependent total energy alerting system. First, a preliminary analysis examines when such an alert would have been given in a case study of Asiana Airlines Flight 214. This flight’s crash on approach into San Francisco International Airport was attributed to lack of pilot situational awareness and understanding of the aircraft’s autoflight systems, leading to the aircraft having sufficiently low total energy that it stalled into the seawall just before the runway threshold. Analysis shows the total energy alert would have sounded roughly 14-41 seconds before impact, earlier than any currently installed system and potentially early enough for corrective action. Next, the context dependent total energy alert is analyzed to assess its performance in real flight as captured by Flight Operations Quality Assurance (FOQA) data. The analysis examines how alerting parameters impact when and how often the alert is triggered, and the thesis concludes with recommendations for the design and application of a context dependent total energy alert, along with recommendations for future work.
dc.description.degree M.S.
dc.format.mimetype application/pdf
dc.identifier.uri http://hdl.handle.net/1853/63533
dc.language.iso en_US
dc.publisher Georgia Institute of Technology
dc.subject Unstable approach
dc.subject Unstabilized approach
dc.subject Commercial aviation
dc.subject Low energy approach
dc.subject Total energy alert
dc.subject Low energy alert
dc.subject NTSB
dc.subject Aviation safety
dc.subject Cockpit alert
dc.title Context dependent total energy alerting system for the detection of low energy unstabilized approaches
dc.type Text
dc.type.genre Thesis
dspace.entity.type Publication
local.contributor.advisor German, Brian J.
local.contributor.corporatename College of Engineering
local.contributor.corporatename Daniel Guggenheim School of Aerospace Engineering
local.relation.ispartofseries Master of Science in Aerospace Engineering
relation.isAdvisorOfPublication 4a7d0819-ea3c-456c-8711-eb3137c3ef6d
relation.isOrgUnitOfPublication 7c022d60-21d5-497c-b552-95e489a06569
relation.isOrgUnitOfPublication a348b767-ea7e-4789-af1f-1f1d5925fb65
relation.isSeriesOfPublication 2fef2987-f871-4c1d-acfa-e642641793f5
thesis.degree.level Masters
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