• Title/Summary/Keyword: Department of Aviation Maintenance

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A Study on Fatigue Management of Aviation Maintenance Mechanics-Focusing on Shift Workers (교대근무 항공정비사의 피로관리 연구)

  • Kim, Chun-Yong;Choi, Se-Jong
    • Korean journal of aerospace and environmental medicine
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    • v.30 no.2
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    • pp.61-65
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    • 2020
  • In the case of aviation maintenance work, several kinds of shift works are performed during day and night, and a lot of works are performed on the ramp due to the characteristics of the aircraft flight schedule. Maintenance workers are often exposed to the sun or in cold temperatures for aircraft maintenance works. The fatigue risk of the maintenance workers will be weighted. In particular, the work at night shift under normal biological rhythms can make maintenance workers feel sleepy during daytime work. It can also affect the safety of aircraft and individual workers. Accordingly, this study will consider fatigue-related previous researches in the field of aviation maintenance, review the effects of shift work, and how fatigue affects aviation mechanics during the day/night shifts. Considering these factors, we tried to present a plan that can minimize the fatigue of aviation workers through this study.

A Study on Self-Efficacy and Academic Adjustment Among the Aviation-related College Students (항공계열 대학생의 자기효능감 및 학업적 적응에 관한 연구)

  • Bae, Shin-Young
    • Journal of the Korean Society for Aviation and Aeronautics
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    • v.23 no.3
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    • pp.94-104
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    • 2015
  • Recently the departments of aviation-related in the college are increased as the aviation industry is rapidly expanded. To enhance their competitiveness and have differentiation, it is emphasized for each department to manage and teach their students well. Therefore this study aims to examine self-efficacy and academic adjustment of aviation-related college students and investigate the relationship between self-efficacy and academic adjustment. To achieve the objectives, it conducted a survey of aviation-related college students in C university from Apr. 27th. 2015 to May. 22th. 2015. A total of 225 questionnaires were analyzed using SPSS 18.0 statistical package program and frequency analysis, factor analysis, reliability analysis, multiple regression analysis, correlation analysis and one-way ANOVA were conducted. The result released that general self-efficacy was recognized higher at the department of aviation operation than aviation maintenance and aviation service and social self-efficacy was recognized higher at the department of aviation service than aviation maintenance and aviation operation. Also general self-efficacy had an influence on the motivation, application and performance and social self-efficacy affected motivation, performance and academic environment. The implication of these findings would help to manage aviation-related college students, develop their departments and provide the directions for future research.

A Study on Improvement of Aviation Maintenance Human Factors Training for Aviation Safety Promotion (항공안전증진을 위한 항공정비인적요인 교육훈련 개선방안 연구)

  • Kim, Chun-Yong
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.20 no.2
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    • pp.115-121
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    • 2019
  • The purpose of this study is to establish the training standards for HF of aviation maintenance reflecting the growing relevance of aviation maintenance technicians' ability to perform their work for the safety and efficiency of airline operation. For this purpose, previous studies on the concept of human factors were examined, and the HF training standards of the advanced international aviation bureaus such as the International Civil Aviation Organization(ICAO), Federal Aviation Administration(FAA) and European Aviation Safety Agency(EASA) were compared with the operational technical standards of Korea Aviation Safety Law. In addition, the actual status of human factors education and training were examined for Korea's two full service carriers (FSC) and four of the low cost carriers (LCC). The study results revealed that Korea's human factors education and training standards were weak compared with international standards, and that most airlines were not able to systematically implement human factors education and training. These results complement the existing problem of training standards for aviation maintenance human factors in Korea and support the development of a standard model of the training course for aviation maintenance human factors which meets international standards.

Aviation Operators' Response Plan to Overcome the Crisis in the Aviation Industry Caused by COVID-19 (COVID-19로 인한 항공 산업의 위기를 극복하기 위한 항공업계의 대응 방안)

  • Lim, In-kyu
    • Korean journal of aerospace and environmental medicine
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    • v.30 no.3
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    • pp.91-94
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    • 2020
  • The coronavirus infectious disease-19 (COVID-19) pandemic has had a profound impact on the aviation industry. In order to overcome this crisis, airlines have made their efforts in various fields. Therefore, we tried to summarize these efforts of airlines. It is also essential to keep aircraft that have been in landing for a long time in optimal condition. In this paper, we tried to find out about efforts to maintain landing aircraft and maintenance of personnel. Through such constant care, airlines will be able to quickly respond to increasing aviation demand when the infectious disease situation is stabilized in the future. Finally, airlines and passengers must make several efforts to ensure that passengers are free from COVID-19 while traveling by air. These include general precautions to prevent infection, separation of airline personnel and passengers, changes in seat assignments and in-flight services, periodic aircraft disinfection, and prevention of in-flight infections.

A Study on the Safety and Management Plan of Aviation Maintenance due to Human Error (인적오류에 의한 항공정비의 안전과 관리방안에 관한 연구)

  • Park, Se-Jong;Jeon, Eon-Chan
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.19 no.10
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    • pp.68-73
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    • 2020
  • The proportion of airline accidents caused by human factors is steadily increasing. The aviation industry has made considerable progress in reducing the accident rate; however, since the early 1980s, the accident rate has remained constant. Due to airspace congestion, the safety margins of these existing safety promotion methods are gradually decreasing; thus, new methods to prevent accidents and quasi-accidents must be devised. Causative factors of aviation accidents include increased air traffic due to increased air demand, increased cumulative working hours due to long-distance flights, and complicated flight environments. Accidents often occur when several small errors accumulate in the normal course of operation, rather than after a single error. Accordingly, in this study, the impacts on air navigation due to human error by aviation maintenance personnel and varying international standards (i.e., KOCA vs. F.A.A vs. EASA) analyzed, and the relationship between human decision-making and behavior was investigated. The resulting safety analysis and alternatives were presented to prevent aviation maintenance accidents and cognitive ergonomics errors.

Optimal Maintenance Cycle for Aviation Oil Testing Equipment under the Consideration of Operational Environment (운용환경을 고려한 항공오일시험장비의 최적정비주기 설정)

  • Kim, In Seok;Jung, Won
    • Journal of Applied Reliability
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    • v.16 no.3
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    • pp.224-230
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    • 2016
  • Purpose: Military maintenance involves corrective and preventive actions carried out to keep a system in or restore it to a predetermined condition. This research develops an optimal maintenance cycle for aviation oil testing equipment with acceptable reliability level and minimum maintenance cost. Methods: The optimal maintenance policy in this research aims to satisfy the desired reliability level at the lowest cost. We assume that the failure process of equipment follows the power law non-homogeneous Poisson process model and the maintenance system is a minimal repair policy. Estimation and other statistical procedures (trend test and goodness of fit test) are given for this model. Results: With time varying failure rate, we developed reliability-based maintenance cost optimization model. This model will reduce the ownership cost through adopting a proactive reliability focused maintenance system. Conclusion: Based on the analysis, it is recommended to increase the current maintenance cycle by three times which is 0.5 year to 1.5 years. Because of the system's built-in self-checking features, it is not expected to have any problems of preventative maintenance cycle.

A Study on a Wireless Communication-based Tool Control System to prevent FOD Occurrence (FOD 발생 예방을 위한 무선통신 기반 공구 관리 시스템 연구)

  • Junyi Park;Myungjun Kim
    • Journal of Aerospace System Engineering
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    • v.17 no.2
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    • pp.16-25
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    • 2023
  • There are various types of foreign object debris (FOD) in the aviation industry. Tools lost by workers can act as a risk factor throughout aircraft operation, manufacturing, and maintenance fields. Accidents caused by tools lost due to workers' carelessness continue to occur throughout the aviation industry. Aviation-related institutions such as FAA and EASA have established tool control regulations and systems to prevent FOD occurrence. However, in Korea, related regulations and procedures are insufficient. A systematic and effective tool control system is required for reliable manufacturing, airworthiness, operation, and maintenance of aircraft. In this paper, tool control regulations and procedures of domestic and foreign air traffic authorities and aviation industry-related organizations were studied. A wireless communication-based tool control system was proposed based on the NAS 412's tool control regulations certified by the National Standards Association.

Analysis of Human Errors in a Commercial Aircraft Air Data System and their Influence on Air Safety (커머셜 항공기 에어 데이터 시스템의 인적오류 분석과 안전에 미치는 영향에 관한 연구)

  • Park, Se-Jong;Jeon, Eon-Chan
    • Journal of the Korean Society of Manufacturing Process Engineers
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    • v.19 no.11
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    • pp.87-93
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    • 2020
  • A key component of aviation safety is to eliminate the errors in commercial aircraft air data systems to ensure stable aviation operation. Although the technical aspects such as the maintenance and inspection play a pertinent role, human errors are expected to have a similar or even larger influence on the aviation safety. Aviation maintenance and inspection tasks are often performed by a complex organization, in which individuals perform a variety of tasks in an environment involving time pressure, sparse feedback, and complex conditions. These situational characteristics, combined with the general tendency of human error, may lead to various types of errors, which may have critical consequences such as accidents and loss of life. For instance, if an amber message "IAS DISAGREE" is displayed on the primary flight display while the aircraft is rolling on the runway to takeoff, the crew immediately performs a rejected takeoff operation and troubleshoots the air data system. This paper proposes alternative approaches to address the occurrence of defects due to the human factors involved in the practical processes of the air data system of commercial aircraft.

Optimal Maintenance Cycle Plan of Aerial Weapon System Radar Considering Maintenance Cost (운영유지 비용을 고려한 항공무기체계 레이다의 최적정비주기 설정 방안)

  • Tak, Jung Ho;Jung, Won
    • Journal of Applied Reliability
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    • v.18 no.2
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    • pp.184-191
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    • 2018
  • Purpose: The purpose of this study is to propose a method to calculate the optimal preventive maintenance cycle of radar used in the aviation weapon system of ROKAF. Methods: A hybrid model is used to estimate the optimal preventive maintenance cycle in a system that can perform condition based predictive maintenance (CBPM) through continuous diagnosis. The failure data of the radars operating in the military were used to calculate the reliability. Results: According to the research results, the reliability threshold of the radar began to decrease after 5 flights, and decreased rapidly after 12 flights. Since the second check, costs have continued to decline. Conclusion: A method is proposed to determine the cycle of optimal preventive maintenance of radar within operational budget through modeling results between reliability limit and cost for radar. The results can be used to determine the optimal preventive maintenance cycle and frequency of various avionics equipment.

Roles of Safety Management System (SMS) in Aircraft Development

  • Lee, Won Kwan;Kim, Seung Jo
    • International Journal of Aeronautical and Space Sciences
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    • v.16 no.3
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    • pp.451-462
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    • 2015
  • Safety is the first priority in civil aviation, and so the International Civil Aviation Organization (ICAO) has introduced and mandated the use of Safety Management Systems (SMS) by airlines, airports, air traffic services, aircraft maintenance organizations, and training organizations. The aircraft manufacturing industry is the last for which ICAO has mandated the implementation of SMS. Since SMS is a somewhat newer approach for most manufacturers in the aviation industry, they hardly believe in the value of implementing SMS. The management of safety risk characteristics that occur during early aircraft development stages and the systematic linkage that the safety risk has to do with an aircraft in service could have a significant influence on the safe operation and life cycle of the aircraft. This paper conducts a case analysis of the McDonnell Douglas MD-11 accident/incident to identify the root causes and safety risk levels, and also verified why aircraft manufacturing industry should begin to adopt SMS in order to prevent aircraft accident.