Qualitative Findings From The Practice Of Outsourcing By The Aviation Technical Services Industry In Northern Europe: Comparison With Literature, Jukka Holkeri
Journal of Aviation Technology and Engineering
The outsourcing of maintenance and other technical services is a trend in both military and civil aviation. This article uses input from real outsourcing cases in Northern Europe to verify previous literature findings and to introduce new viewpoints to fill an identified research gap.
Interviews of deeply involved individuals from six cases were selected and analyzed using the Delphi method. The findings were synthesized using a framework that articulates contexts, observed outcomes, and generative mechanisms.
Many of the key literature findings were verified by this case analysis, but there were also some contradictions and new observations that had not been ...
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, 2021 Embry-Riddle Aeronautical University
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
A webinar presentation for AeSSA Young Professionals.
Approaches For Sustainable Aviation, 2021 Syracuse University
Approaches For Sustainable Aviation, Muhammad Muneeb Safdar
English Language Institute
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 ...
Product Support In A Maintenance Free Operating Period Strategy, 2021 United States Military Academy
Product Support In A Maintenance Free Operating Period Strategy, Andrew Bellocchio, Kathryn Pegues, Steven Chetcuti
West Point Research Papers
Application of a Maintenance Free Operating Period (MFOP) strategy in a fleet of vertical lift aircraft has profound implications to product support. Previous approaches to MFOP focused on estimating the operating period’s probability of success with modeling techniques and improving results using design elements such as inherent reliability. These approaches were aircraft centric and neglected aspects of the sustainment system external to the airframe. Key external facets addressed are the establishment of metrics that adequately measure MFOP performance as a stochastic process, optimization of the recovery period through a systems approach, transition to risk-based maintenance using high fidelity diagnostic ...
Helicopter Shaft Heating Parameters For Polyamide-11 Coating, 2021 The Ministry of National Defence
Helicopter Shaft Heating Parameters For Polyamide-11 Coating, Selim Kevran Ph.D, Uğur Atici
International Journal of Aviation, Aeronautics, and Aerospace
In this study, the heating parameters required for polyamide-11 (P11) coating of the helicopter shaft were investigated. The torsion value created by the force applied to the middle of the helicopter's shaft is measured. Heating before coating affects the torsion value of the shaft. A new heating mechanism has been designed to cover the shaft surface without changing the torsion value of the shaft. Thus, the coating surface is left inside the furnace and the torsion measurement area outside of the furnace. Taguchi method was used to determine heating parameters such as furnace type, initial temperature and heating time ...
Design And Evaluation Of High Power, High Efficiency And High Power Density Motor Drives For More Electric Aircrafts, 2020 University of Arkansas, Fayetteville
Design And Evaluation Of High Power, High Efficiency And High Power Density Motor Drives For More Electric Aircrafts, Zhao Yuan
Graduate Theses and Dissertations
More-electric aircraft (MEA) is an attractive concept as it can reduce carbon dioxide emission, relieve fossil-fuel consumption, improve the overall efficiency of aircraft, and reduce the operational costs. However, it poses substantial challenges in designing a high-performance motor drive system for such applications. In the report of Aircraft Technology Roadmap to 2050, the propulsion converter is required to be ultra-high efficiency, high power density, and high reliability. Though the wide band-gap devices, such as the Silicon-carbide based Metal Oxide Silicon Field Effect (SiC-MOSFET), shows better switching performance and improved high-temperature performance compared to the silicon counterparts, applying it to the ...
3d Printing For Solving Part Obscolescence, 2020 Air Force Institute of Technology
3d Printing For Solving Part Obscolescence, Ayman G. Alqarni
Theses and Dissertations
The purpose of this research was to highlight the issue of parts obsolescence and to highlight the possibility of using alternative methods to overcome parts shortage. Specifically, this thesis sought to answer the research question: is the three-dimensional printing technology (3D) an applicable approach to overcome part obsolescence. The research question was answered through data research and survey analysis. Notwithstanding, the diminished manufacturing sources and material shortages (DMSMS) management and other existing approaches, such as forecasting, contracting, and reverse engineering (RE), were discussed briefly in the literature review and profoundly in chapter IV to differentiate among applicable existing solutions toward ...
Certificated Amts: What Will Encourage More Women To Become Aviation Maintenance Technicians?, 2020 Western Michigan University
Certificated Amts: What Will Encourage More Women To Become Aviation Maintenance Technicians?, Gail Y. Rouscher Ph.D.
National Training Aircraft Symposium (NTAS)
This paper examines practices that are used in STEM fields to attract women in order to understand how those tactics may to entice women to join the ranks of certified AMTs. According to the FAA, the estimated active mechanic certificates held as of December 31, 2018 was 292,002. Of those 292,002 it is estimated that 7,133 or 2.4% were held by women. In 2009, there were 329,027 active mechanics certificates held and 6,980 or 2.1% were held by women. There was steady growth of certificated women mechanics from 2009 through 2015 – growing from ...
Under Pressure: Decision Making In Aircraft Maintenance And The Role Of Gender, 2020 Embry-Riddle Aeronautical University
Under Pressure: Decision Making In Aircraft Maintenance And The Role Of Gender, Stephanie Douglas Ph.D., Bettina M. Mrusek Ph.D.
National Training Aircraft Symposium (NTAS)
In aircraft maintenance, leaders are under near-constant pressure to maintain airworthiness. Every minute an aircraft cannot fly due to maintenance represents financial waste. Decisions are therefore made in a relatively quick fashion. A leader evaluates the situation, identifies a course of action and then communicates this message to a team of technicians. However, gender influences regarding leaders’ decisions can influence team members’ perceptions of those decisions.
The study will measure decision making methods of leaders in aircraft maintenance and the perceptions of the technicians. It informs how gender influences decision making from both the leader and follower perspective. The expected ...
Drones Are Everywhere!, 2020 Utah State University
Drones Are Everywhere!, Andreas Wesemann Ph.D.
National Training Aircraft Symposium (NTAS)
Drones are everywhere! Using technology to enhance learning in collegiate and secondary school education.
Unmanned Aerial Systems are invading our campus at Utah State University, and we see drones flying everywhere. Using hands-on activities, including design, building and actually flying, students are becoming FAA certified Remote Pilot as part of a new minor at USU. This workshop will discover how this program was created, how the use of active learning labs compliment student programs in all disciplines from journalism to business, and landscape architecture to natural resources. Using examples from the first two years of course offerings, participants will discover ...
Aviation Maintenance Safety Management Challenges : Thematic Analysis, 2020 Embry-Riddle Aeronautical University
Aviation Maintenance Safety Management Challenges : Thematic Analysis, Tori Kobayashi, Brent D. Bowen
Aircraft maintenance is a fundamental and necessary element in any aviation operation. In order to be considered safe and airworthy, operators must be diligent in the way aircraft are maintained and how employees are performing. A safety management system (SMS) is an organized approach by management to include every employee of a company that standardizes the procedures a company will follow to improve safety. The structure of SMS was designed by the International Civil Aviation Organization in order to be standardized across different countries and types of operations. Currently, only part 121 U.S. commercial airlines are mandated by the ...
Implementing The Repairer Human Factors Safety Reporting System Through Mrm (Mxhf) To Meet Sms Compliance In Aviation Maintenance, 2020 Embry-Riddle Aeronautical University
Implementing The Repairer Human Factors Safety Reporting System Through Mrm (Mxhf) To Meet Sms Compliance In Aviation Maintenance, Mark D. Miller, Bettina Mrusek
Reiterating the importance of having a human factor related safety reporting system for aviation maintenance to reduce human error and utilizing it to gain SMS compliance, the REPAIRER method of identifying and reporting human factors hazards in aviation maintenance is reintroduced. How and why the REPAIRER method system is of such importance in the implementation of aviation maintenance safety programs can be linked to the success and evolution of maintenance resource management and human factors programs which have been effective in reducing human error in aviation maintenance. These programs are rooted in effective communication methods, as well as the identification ...
Repairer Reporting System User Analysis For Sms Compliance In Aviation Maintenance, 2020 Embry-Riddle Aeronautical University
Repairer Reporting System User Analysis For Sms Compliance In Aviation Maintenance, Mark D. Miller, Bettina Mrusek
To resolve the issue of human error in maintenance the REPAIRER reporting system is revisited as it has great potential by combining a human factors analysis with a risk management safety reporting mechanism. It is also timely as a human factors centered safety reporting method like the REPAIRER could now be feasibly implemented through the new mandatory FAA (Federal Aviation Administration) FAR 121 requirement to use SMS (Safety Management System) pillars and through the new FAA MxHF human factors training. With the current FAA support in place and the ever growing need to add human factors to combat human error ...
Degrader Analysis For Diagnostic And Predictive Capabilities: A Demonstration Of Progress In Dod Cbm+ Initiatives, 2020 Old Dominion University
Degrader Analysis For Diagnostic And Predictive Capabilities: A Demonstration Of Progress In Dod Cbm+ Initiatives, William Baker, Steven Nixon, Jeffrey Banks, Karl Reichard, Kaitlynn Castelle
Engineering Management & Systems Engineering Faculty Publications
This paper presents a modified reliability centered maintenance (RCM) methodology developed by The Applied Research Laboratory at The Pennsylvania State University (ARL Penn State) to meet challenges in decreasing life cycle sustainment costs for critical Naval assets. The focus of this paper is on the requirements for the development of the on-board Prognostics and Health Management (PHM) system with a discussion on the implementation progress for two systems: the high pressure air compressor (HPAC), and the advanced carbon dioxide removal unit (ACRU). Recent Department of Defense (DoD) guidance calls for implementing Condition Based Maintenance (CBM) as an alternative to traditional ...
Damage Resistance And Tolerance Of 3d Woven Composites, 2019 University of Maine
Damage Resistance And Tolerance Of 3d Woven Composites, Justin T. Mcdermott
Electronic Theses and Dissertations
Composite materials have been adopted into primary aircraft structures by virtue of their great strength-to-weight and stiffness-to-weight ratios, fatigue insensitivity, and corrosion resistance. These characteristics are leveraged by aircraft designers to deliver improved fuel effciency and reduced scheduled maintenance burdens for their customers. These benefits have been impressively realized in the Boeing 787 and Airbus A350 XWB, with airframes utilizing about 50% composites by weight. Tempering these successes, however, are the inherent vulnerabilities of carbon-fiber reinforced composites. When compared to conventional metallic structure, composite laminates are more sensitive to stress concentrations at mechanical fastenings and damage due to low-velocity impact ...
Engine Light Repair Shop Evaluation For A Brazilian Airline, 2019 Embry-Riddle Aeronautical University
Engine Light Repair Shop Evaluation For A Brazilian Airline, Gustavo Henrique Melhado Trevilatto, Marcelo Teodoro Miranda
Graduate Student Works
The maintenance cost of a commercial aircraft comprises airframe, components, and engines. The most expensive of them are engines, which may represent up to 60% of an aircraft cost, and therefore will have a significant impact on any airline finance. As a result, engine fleet maintenance management is crucial for any airline sustainability. Apart from heavy maintenance where life limited parts are replaced and its performance restored, aircraft engines are often required to come off wing for light repair due to operational issues like foreign object damage, high oil consumption, and vibration issues. In other cases, even though being operational ...
Segmentation Of Severe Occupational Incidents In Agribusiness Industries Using Latent Class Clustering, 2019 San Jose State University
Segmentation Of Severe Occupational Incidents In Agribusiness Industries Using Latent Class Clustering, Fatemeh Davoudi Kakhki, Steven Freeman, Gretchen Mosher
One of the principle objectives in occupational safety analysis is to identify the key factors that affect the severity of an incident. To identify risk groups of occupational incidents and the factors associated with them, statistical analysis of workers’ compensation claims data is performed using latent class clustering, for the segmentation of 1031 severe occupational incidents in agribusiness industries in the Midwest region of the United States between 2008–2016. In this study, severe incidents are those with workers’ compensation costs equal to or greater than $100,000 (USD). Based on the latent class clustering results, three risk groups are ...
Use Of Logistic Regression To Identify Factors Influencing The Post-Incident State Of Occupational Injuries In Agribusiness Operations, Fatemeh Davoudi Kakhki, Steven Freeman, Gretchen Mosher
Agribusiness industries are among the most hazardous workplaces for non-fatal occupational injuries. The term “post-incident state” is used to describe the health status of an injured person when a non-fatal occupational injury has occurred, in the post-incident period when the worker returns to work, either immediately with zero days away from work (medical state) or after a disability period (disability state). An analysis of nearly 14,000 occupational incidents in agribusiness operations allowed for the classification of the post-incident state as medical or disability (77% and 23% of the cases, respectively). Due to substantial impacts of occupational incidents on labor-market ...
Evaluating Machine Learning Performance In Predicting Injury Severity In Agribusiness Industries, 2019 San Jose State University
Evaluating Machine Learning Performance In Predicting Injury Severity In Agribusiness Industries, Fatemeh Davoudi Kakhki, Steven Freeman, Gretchen Mosher
Although machine learning methods have been used as an outcome prediction tool in many fields, their utilization in predicting incident outcome in occupational safety is relatively new. This study tests the performance of machine learning techniques in modeling and predicting occupational incidents severity with respect to accessible information of injured workers in agribusiness industries using workers’ compensation claims. More than 33,000 incidents within agribusiness industries in the Midwest of the United States for 2008–2016 were analyzed. The total cost of incidents was extracted and classified from workers’ compensation claims. Supervised machine learning algorithms for classification (support vector machines ...
Investigation Into The Effects Of Blade Tip Twist On Noise Reduction For A Naca 0012 Rotor Blade, 2019 San Jose State University
Investigation Into The Effects Of Blade Tip Twist On Noise Reduction For A Naca 0012 Rotor Blade, Uyen T. Sou
McNair Research Journal SJSU
The advancement of the urban air mobility concept is heavily dependent on the public acceptance of the aircraft vehicles used for air taxis. The importance of the perception of noise by humans is crucial to the passing of legislation and proposals working to implement the new transport system. The investigation into how the noise perception can be reduced is vital to the success of the personal air travel industry. The air taxi design has been geared towards the rotorcraft models. Therefore, the investigation into the rotor blade designs is necessary because, similar to helicopters, the main component in noise generation ...