Aviation Commons^™

Noise And Time Pressure Effects On Situation Awareness And Aviation Maintenance Tasks, Syaza R. M. Haris

Doctoral Dissertations and Master's Theses

Aircraft maintenance technicians (AMTs) working in a line maintenance work setting are very susceptible to the deafening occupational noise from the airport vicinity or the maintenance machinery itself. Compared to a base maintenance working period, a line maintenance job requires AMTs to complete a task within a short time frame. The current study's objective is to determine if different noise levels and time pressure influence AMTs' performance and situation awareness (SA). Sixteen Embry-Riddle Aeronautical University students majoring in Aviation Maintenance Science participated in a within-subject experimental design. Each participant's performance, SA level, and perceived workload were measured during maintenance tasks …

Sortie-Based Aircraft Component Demand Rate To Predict Requirements, Thomas R. O'Neal, John M. Dickens, Lance Champaign, Aaron V. Glassburner, Jason R. Anderson, Timothy W. Breitbach

Faculty Publications

Purpose — Forecasting techniques improve supply chain resilience by ensuring that the correct parts are available when required. In addition, accurate forecasts conserve precious resources and money by avoiding new start contracts to produce unforeseen part requests, reducing labor intensive cannibalization actions and ensuring consistent transportation modality streams where changes incur cost. This study explores the effectiveness of the United States Air Force’s current flying hour-based demand forecast by comparing it with a sortie-based demand forecast to predict future spare part needs. Design/methodology/approach — This study employs a correlation analysis to show that demand for reparable parts on certain aircraft …

Teaching Diversity, Equity, And Inclusion In Aviation Education., Jorge L. D. Albelo Ph.D., Nicola O'Toole

Publications

Over the last decade, many companies have begun to recognize the value of a diverse workforce, equity within the workforce, and inclusion practices. Recent global events have pushed the promotion of diversity, equity, and inclusion (DEI) in the aviation workplace and education higher on the priority list for many. Unfortunately, the aviation industry continues to have difficulty in attracting and retaining a diverse workforce. Notwithstanding this struggle in the industry, those in education must find ways to educate our students on topics relating to DEI. It is critically important that this training is rooted in research. The aviation industry is …

Utilizing Uas To Support Wildlife Hazard Management Efforts By Airport Operators, Flavio A. C. Mendonca, Ryan Wallace

Publications

The FAA requires airports operating under the Code of Federal Regulations Part 139 to conduct a wildlife hazard assessment (WHA) when some wildlife-strike events have occurred at or near the airport. The WHA should be conducted by a Qualified Airport Wildlife Biologist (QAWB) and must contain several elements, including the identification of the wildlife species observed and their numbers; local movements; daily and seasonal occurrences; and the identification and location of features on and near the airport that could attract wildlife. Habitats and land-use practices at and around the airport are key factors affecting wildlife species and the size of …

Airspace Integration Of New Entrants And Safety Risk Management Models, Fadjimata Issoufou Anaroua

Doctoral Dissertations and Master's Theses

In recent years, the demand for airspace access of Unmanned Aerial Systems (UAS) increased significantly and is continuously increasing for different altitude-types UAS. A similar evolution is expected from Commercial Space Operations (CSO) in the next years. These aviation/aerospace systems will need to be seamlessly integrated into the National Airspace System (NAS), at their operational altitude levels, and accounted for from all perspectives, including proactively addressing their safety hazards. This thesis captures the requirements for the new entrants’ integration, and then identifies and analyzes the safety risks added to the NAS operations by its new entrants, the future omnipresent UAS …

Long Haulers: The Us Airline Industry And Moving Forward From The Covid-19 Pandemic, James Norman

Aviation Faculty Publications

No abstract provided.

Effects Of Graphical In-Flight Weather Information And Graphical Depictions Of Airspace Restrictions On Pilots’ Decisions To Continue Vfr Flight Into Imc, Andrew James Nakushian

Theses and Dissertations

Continued Visual Flight Rules (VFR) flight into Instrument Meteorological Conditions (IMC) is a leading cause of fatal general aviation accidents. According to the 2020 Joseph T. Nall Report, this type of accident has a 90% lethality rate. As a result of this high lethality rate, VFR into IMC is an aviation safety issue widely discussed among the aviation community in popular media and academic literature. Additionally, over the past decade, Electronic Flight Bags (EFBs) have become mainstream in general aviation, replacing paper charts and providing inflight weather in both graphical and textual form. EFBs also commonly provide graphical depictions of …

Socio-Economic Variables And Their Relationships With The Passenger To Population Ratio, Jack Matthew Westbury

Theses and Dissertations

As the aviation industry expands and becomes commonplace in the modern world, it would behoove us to understand how the industry develops and passenger to population ratio could be a measure of that development. If called upon to identify how the aviation industry develops, one could only make suggestions as to which variables might be key in the development of the aviation industry. This study used existing socio-economic and population data from the United Nations and passenger information from the International Air Transport Association, with the aim to deepen the understanding of the relationship between socio-economic variables and the passenger …

Assessment Of The Skeletonization And Motion Monitoring System For The Security Efficiency Of The United States Airports, Haoruo Fu

Theses and Dissertations

The screening processes at airports, including passengers and baggage, have changed dramatically in the past twenty years. The goal of the X-ray scanning is to enhance airport screening by preventing passengers from carrying weapons and contraband. X-ray is more effective compared to traditional pat-down. The X-ray shoots beams through passengers and their baggage, which provides an inner view to the Transportation Security Administration (TSA) screeners. Issues and concerns of the use of X-ray have also been raised, as some passengers complained about possible health issues due to the body exposure of radioactive waves; other experts pointed out possible human factor …

Customer Purchase Intention Towards The Us Airline, Ming-Chun Kuo

UNLV Theses, Dissertations, Professional Papers, and Capstones

The airline industry has become the main economic resource to the United States. The airline companies have had a very mature operating base towards their marketing standing point and their target customers. Yet, customer purchase behavior has changed consistently, especially after the whole year of lockdown of COVID-19 pandemic. Customers no longer only look for the service quality when they select an airline to fly. This paper aims to explore the possible aspects that may affect customer purchase intention to a US-based airline. Many studies have indicated that service quality is no longer the only reason to attract the purchase …

Examining The Safety Climate Of A General Aviation Maintenance, Repair, And Overhaul (Mro) Organization: A Replication Study And Application Of Bandura’S Reciprocal Causation Model, Russell Vincent Tokarski

Theses and Dissertations

The primary purpose of this study was to examine the safety climate of a general aviation original equipment manufacturer maintenance, repair, and overhaul (MRO) facility relative to Fogarty’s (2005) and Uhuegho’s (2017) respective empirically-derived safety climate path models, and Bandura’s (1977) theoretical reciprocal causation model. The study used an explanatory correlational design, and the primary data collection instrument was Uhuegho’s Aviation Maintenance Safety Climate Survey, which consisted of Fogarty’s 48-item Maintenance Environment Survey and Goldberg and Williams’ (1988) 12-item General Health Questionnaire. The target population was all aviation maintenance technicians employed at the targeted MRO’s U.S. facilities, which complete scheduled/unscheduled …

Analysis Of The Dispute Between American And Gulf Carriers In Aviation, Aminda Fernando

Senior Honors Theses

During the last decade, a significant disagreement has grown over unfair government financial subsidies in the aviation industry for Persian Gulf region carriers: $40 Billion US Dollars since 2000. The most prominent international airlines of North America, United, American, and Delta, have made claims on a white paper document directed toward the American government against the primary Persian Gulf region air carriers: Emirates, Qatar, and Etihad. Assertions made by both sides will be carefully scrutinized in this thesis with a fair analysis of both sides of the dispute over government aid in the aviation industry. This study also includes a …

The Potential Impact Of A Voluntary Non-Punitive Self Report Program Under The Scope Of The Brazilian Civil Aviation Authority, Audrey Gonzalez, Bráullio Amaral, Felipe Piton, Laércio De Araujo, Marcelo Marcusso

Student Works

The key recommendation from this study is to purpose the Brazilian National Civil Aviation Authority evaluation over the implementation of a new voluntary and non-punitive safety reporting program, with a different scope from the current one. The voluntary self-reporting programs in place in the USA, Europe and Australia should be used as a regulatory reference and the program development and implementation should be executed in close coordination with the different industry stakeholders.

To access if the current Brazilian State Safety reporting system meets ICAO requirements, the researchers accessed pertinent aviation safety regulatory legislation. Additionally, to access if the current Brazilian …

Analyzing The Effect Of Delta Airlines' Fleet Upgrade On Operations At Atlanta-Hartsfield Jackson International Airport, Carlos Alberto Castro, Shlok Misra

Publications

Commercial aviation has seen a growth in terms of passengers traveled and flights operated in the past decade (BTS, 2020). To cope up with this growth, airlines adopt various strategies such as network expansion and fleet upgrades. Airlines adopt fleet upgrade strategies to modernize their fleet, reduce costs, expand network coverage, and improve customer loyalty and experience. Research suggests that change in wake turbulence categorization and aircraft performance can directly impact the movements and delays at an airport. For this study, Delta Airline's fleet upgrade program and its effect on operating parameters at Atlanta-Hartsfield Jackson International Airport were analyzed. The …

Student Engagement In Aviation Massive Open Online Courses (Moocs), Jennifer M. Edwards, Haydee M. Cuevas, Felix Brito, Mark Friend, Maryjo O. Smith

Publications

As online training in the aviation industry continues to expand, understanding how learners engage in open online courses may help inform course design. Currently little is known about student engagement in aviation Massive Open Online Courses (MOOCs) and more information is needed about those who utilize, but do not complete them. Datasets from two aviation MOOCs were cluster-analyzed to determine subpopulations based on activity (discussions, videos, quizzes). Differences were examined for days of activity and completion. Survey data revealed differences in demographics and learning goals. Three significantly different subgroups were found for each MOOC. Engagement patterns were similar between corresponding …

The Secret Life Of Stalls, Nihad E. Daidzic

Aviation Department Publications

FAA Safety Webinar (GL15107982) held online at 9:00 CST on Saturday, October 23, 2021.

Space And Defense – Volume Twelve – Number Two – Summer 2021, Space And Defense Journal

Space and Defense

No abstract provided.

Adverse Weather Low-Probality Forecast Effects On Flight Fuel Planning, Fabio Castro, Diogo Umsza, David Louzada, Paulo Ricardo Lanzarini, Manoel Valente

Student Works

This project aimed to improve the efficiency of flight planning of regular airlines regarding the addition of extra fuel due to weather forecasts with low probability occurrence regarding rain and thunderstorm events (30 and 40% chances).

Recommendations:

• Expand the scope/sample of analyzed flights to include other significant strategic airports.

• Involve Operations Control Center, Air Operations Engineering, and Safety Department in future studies in order to create an effective policy for extra fuel supply (on planning and flight execution).

• Include in the study other meteorological phenomena and conditions that involve flights extra fuel supply, such as FOG, MIST, HAZE.

• Expand the …

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General Aviation Flight Safety During The Covid-19 Pandemic, Douglas D. Boyd

Publications

BACKGROUND/OBJECTIVE: The COVID-19 virus has caused over 582,000 deaths in the United States to date. However, the pandemic has also afflicted the mental health of the population at large in the domains of anxiety and sleep disruption, potentially interfering with cognitive function. From an aviation perspective, safely operating an aircraft requires an airmans cognitive engagement for: 1) situational awareness, 2) spatial orientation, and 3) avionics programming. Since impaired cognitive function could interfere with such tasks, the current study was undertaken to determine if flight safety for a cohort of single engine, piston-powered light airplanes was adversely affected during a period …

Pilot Perception Of Cockpit Organizational Framework’S Impact On Flight Safety And Subordinate Pilot Behavior, Robert D. Allen

Doctoral Dissertations and Master's Theses

Past accidents have indicated that first officers (FO) are less likely to identify and correct captain errors than captains are to correct FO errors. Crew resource management (CRM) training was introduced in the late 1970s to improve captain teamwork skills to utilize the FO more effectively and to increase FO willingness to interject to preserve safety. Despite the effectiveness of CRM training programs, there continue to be incidences where subordinate pilots make weak or ineffective attempts to preserve safety.

This research investigated commercial and airline transport pilots’ perception of the impact cockpit organizational framework (COF) has on both flight safety …

Identification Of Factors Associated With Fume Events Using Text Mining And Data Mining Methods, Mary B. O'Connor

Doctoral Dissertations and Master's Theses

Pilots, flight attendants, and passengers can be exposed to toxic compounds when the bleed air that supplies the cabin and flight deck is contaminated with pyrolyzed hydraulic fluid or oil from turbine jet engines. These fume events occur sporadically and can result in acute or chronic exposure in air crews and can have catastrophic consequences if flight crew members become impaired or incapacitated. The purpose of this research was to explore unstructured textual data and identify important factors associated with these events. Models using machine learning algorithms were developed and tested using variables gleaned from the text mining process and …

Neutralization Of Fuel Tankering Emissions For Environmental Sustainability, Marcos Café, Diogo Coutinho, Daniel Martinelli, Alex Shigihara, Fabricio Sulzbacher

Student Works

The strategy adopted had verified the impacts of Fuel Tankering by the total value assessment in the Brazilian aviation industry in 2019, recommending practical actions to compensate and neutralize damages caused on the environment.

The importance of sustainability has significantly increased over the past years.

The aviation industry has represented an important pillar helping society to meet their present needs, without compromising the environment and future generations.

The present research had as main objective to verify if the Brazilian aviation industry can neutralize the carbon emissions from Fuel Tankering, a practice of refueling more than necessary to gain financial leverage …

Aessa Young Professionals Forum Webinar “Technologies And Skills That Will Gearup The Aerospace Industry Post Pandemic” - A Global Perspective With An Emphasis On South Africa October 2021, Linda Vee Weiland

Publications

A webinar presentation for AeSSA Young Professionals.

Shifting Satellite Control Paradigms: Operational Cybersecurity In The Age Of Megaconstellations, Carl A. Poole, Robert A. Bettinger, Mark Reith

Faculty Publications

The introduction of automated satellite control systems into a space-mission environment historically dominated by human-in-the-loop operations will require a more focused understanding of cybersecurity measures to ensure space system safety and security. On the ground-segment side of satellite control, the debut of privately owned communication antennas for rent and a move to cloud-based operations or mission centers will bring new requirements for cyber protection for both Department of Defense and commercial satellite operations alike. It is no longer a matter of whether automation will be introduced to satellite operations, but how quickly satellite operators can adapt to the onset of …

Contributory Factors Of Fatigue Among Collegiate Aviation Pilots: An Ordinal Regression Analysis, Flavio A. C. Mendonca, Julius Keller, Daniel Kwasi Adjekum

Publications

Fatigue is a pervasive safety hazard in aviation affecting several aspects of a pilot's’ ability to safely perform their jobs. Several factors can contribute to fatigue, including inadequate sleep, stress, long work hours, excessive workload, and inadequate nutritional habits. In addition to flight training, some factors including academic, social, part-time work, and emerging time management skills are unique for Title 14 Code of Federal Regulations (CFR) Part 141 collegiate aviation pilots. By utilizing the Collegiate Aviation Fatigue Inventory (CAFI-II) at eight flight programs (n = 422), the current study examined factors such as fatigue training received, time spent working/studying and …

A Ranking Method To Prioritize Vfr Airports To Be Provided Instrument Approach Procedures, Marcelo Soares Leão, Fábio Rodrigues Paukoski Fernandes, Gustavo Ortegal Leal, Leila Halawi

Publications

The primary purpose of this work is to investigate the necessity of a more comprehensive and systematic method to prioritize airports to be provided with instrument approaches and landing procedures in the Brazilian air transportation landscape. First, an overview of the main contributors to risks associated with the approach and landing phases is provided, covering the most critical aspects of unstable approaches and controlled flight into terrain (CFIT) events. Second, considering the emergence of Terrain Awareness and Alerting Systems (TAWS), the role of its contribution to safety is discussed and the certification context related to the design, installation, and operation …

Approaches For Sustainable Aviation, Muhammad Muneeb Safdar

International Programs

The ecological condition is worsening worldwide. The harmful emissions produced by aircraft are significant pollutants. Millions of gallons of fuel are burnt everyday during combustion in aircraft engines thus contributing to noxious emissions. These emissions are not only toxic and a respiratory health hazards but are increasing. It is a grave concern for which remedial measures need to be taken by all the stakeholders before the problem become intractable. So, what needs to be done to make aviation environmentally stable. A balanced and integrated policy encompassing the operational improvements, improvements in aircraft and engine technology, and use of sustainable aviation …

Case Study Of An Automated Mower To Support Airport Sustainability, Sarah Hubbard, Adam Baxmeyer, Bryan Hubbard

Aviation Technology Faculty and Staff Publications

This paper documents a case study of an automated mower to support sustainability at an airport. Mowing is an essential component of an airport’s Wildlife Hazard Management Plan (WHMP), which reduces the risk of birds and other wildlife to aircraft operations. Many airports have large areas of land (hundreds or even thousands of acres), which requires significant resources to manage and mow; experience at the Purdue Airport (KLAF) suggests that automated mowing may support economic and environmental aspects of sustainability. Automated mowing supports economic efficiency by reducing personnel requirements, although personnel are still needed for inspections, maintenance, and “mower rescue” …

Language As A Factor In Aviation Accidents And Serious Incidents: A Handbook For Accident Investigators Ed. 2, Elizabeth Mathews, Anthony T. Brickhouse, Joan Carson Ph.D., Enrique Valdes

Handbooks

The purpose of this handbook is to support accident investigators in the identification and consideration of possible language factors in aviation accidents and serious incidents. This handbook provides guidance, background information, and tools that will assist accident investigators in conducting a systematic review of possible language factors.

Utilizing Uas To Support Wildlife Hazard Management Efforts By Airport Operators, Flavio A. C. Mendonca, Ryan Wallace, Anthony Chimino, Jose Cabrera Jr, Robert Sliwinski

Publications

Purpose of our Study:

To investigate how UAS technologies could be safely and effectively applied to identify hazardous wildlife species to aviation operations as well as potential wildlife hazard attractants within the airport jurisdiction.