• 한국항공운항학회지
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• 제32권2호
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• pp.100-111
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• 2024

This study was conducted to explain airport users' acceptance intention for untact smart devices being introduced at Incheon Airport. Based on the technology acceptance model, perceived usefulness and ease of use influenced attitudes and intention to use. It was verified whether it was affecting the effect. In addition, variables proposed in innovation diffusion theory were selected to verify exogenous variables that affect perceived usefulness and ease of use, which serve as key independent variables in the technology acceptance model. Research results show that perceived usefulness has a high level of positive influence on attitude, whereas perceived ease of use has a low influence and does not show a statistically significant influence. In addition, it was confirmed that most variables of the innovation diffusion theory had no effect on usefulness and ease of use. This means that the key variable in the spread and use of untact smart devices at airports is the perception of usefulness, which means that resistance to accepting new technology is not high.

• 한국항공운항학회지
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• 제27권1호
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• pp.34-42
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• 2019

Ten AOC(Air Operation Certificate) holders certified by MOLIT of Korea are operating their own maintenance training program. Though the maintenance training program is approved by the same authority, the contents of the program are different even in the mandatory training courses among AOC holders. The survey interview showed that the maintenance training in mandatory training should have the same contents and requirements. Throughout the survey and focus group discussion, this paper suggests the list and contents of the initial mandatory training and the list, contents and interval for the recurrent mandatory training. This paper also suggests how to implement the on-line training program for recurrent mandatory training to keep the quality of the airline maintenance training program.

• 한국항공운항학회지
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• 제28권4호
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• pp.47-54
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• 2020

This study carries out a basic study of ways to calculate navigation errors for aircraft operating in the unmanned aerial system traffic management(UTM). Recently, research by UTM has been carried out both at home and abroad, along with the initial study of system definitions at the basic stage, operational techniques of the aircraft, and the practicality of the concept of necessary operations at the actual operational stage. This study presented after a review the factors that should be considered for the calculation of navigation errors among the factors that examine whether the actual low altitude aircraft can operate properly within UTM during its actual operation and the need to apply them in practice.

• 한국항행학회논문지
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• 제26권6호
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• pp.393-403
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• 2022

도심지역 교통문제의 해결책으로 제시되고 있는 UAM의 초기 운영 형태는 다양한 연구에서 현재 항공기 중 VTOL 기체와 유사 할 것으로 제시되고 있다. 고정익 항공기가 이·착륙하는 활주로의 방향 결정과 유사한 형태로 VTOL 기체의 이착륙이 이루어지는 버티포트는 기체의 이·착륙 과정의 출발 및 도착의 비행 방향을 바람의 방향을 고려하여 정하도록 하고 있다. 일반적으로 공항이 건설되는 지역과 다르게 도심지의 경우 새로운 건물의 건축 등 지형 또는 장애물 변화 환경에 따라 바람의 특성이 지속적으로 변화될 수 있는 여건이 예상된다. 본 연구에서는 버티포트의 위치가 예상되는 도심 위치에서 이착륙 방향 검토를 위한 장기간의 실제 관측 데이터를 풍배도를 사용하여 비교 후 관측 기간 및 관측 위치에 따라 지상 바람의 특성과 주 바람의 방향이 변화 가능성을 확인하였다.

• 한국항행학회논문지
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• 제23권2호
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• pp.104-113
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• 2019

본 연구는 정기항공사 소속 조종사들을 대상으로 그들의 비행경력과 운항능력에 대한 실증연구를 하였다. 첫째, 정기항공사 소속 조종사들의 비행경력(비행시간 및 기종)에 따른 운항능력의 차이를 분석하였다. 이를 통해 신규로 항공운송용 조종사로 진입하고자 하는 인력들에 대해 항공사가 기대하는 조종사의 운항능력의 수준을 검증할 수 있었다. 분석결과 기장의 경우 해당기종 비행시간이 500시간이든 1500시간이든 시계비행 운항심사 결과 간의 차이가 없는 것으로 나타났다. 부기장은 1,500시간 이상부터는 시계비행 운항심사 결과의 차이가 나타났다. 부기장은 기장과 달리 해당기종 비행시간을 많이 가질수록 안정적인 시계접근을 할 수 있음이 판명된 것이다. 기종특성과 관련하여 cable 또는 fly-by-wire 기종에 따라 기장 집단은 시계비행 운항능력의 차이가없었다. 즉, 시계접근의 경우는 기종에 관계없이 기장급 조종사의 기량이 평가된다고 할 수 있겠다. 부기장집단에서는 기종 특성에 따른 유의한 차이가 있는 것으로 판명되었다.

• 한국항공운항학회지
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• 제32권2호
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• pp.29-36
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• 2024

Pilots are indispensable and central to the aviation industry, with the relevance of their psychological stress and resultant human errors increasingly recognized as critical. This study aims to meticulously explore the interrelations between psychological stressors and associated factors among helicopter pilots, assessing the consequent effects on potential accidents and incidents. The study comprised active pilots from domestic helicopter airlines, with data collated through both focus group interviews (FGI) and comprehensive surveys. These data were subsequently analyzed using SPSS and AMOS for structural equation modeling. The results reveal that heightened psychological stress in helicopter pilots correlates with an increased incidence of human errors, which in turn, elevates the likelihood of potential safety incidents. Based on these findings, it is proposed that interventions designed to mitigate psychological stress among pilots could significantly reduce human errors and enhance overall aviation safety. This research provides crucial insights into specific ways to improve the operational conditions for helicopter pilots and strengthen the safety protocols within the aviation industry.

• 한국항공운항학회지
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• 제32권2호
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• pp.135-141
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• 2024

Despite the innovative technological advances in the aviation industry, hard landing events that occur during aircraft landing account for 13% of all accidents. Hard landing when landing an aircraft affects normal operation by generating a large load on the landing gear and the fuselage. In order to identify these risk factors, the airline monitors the high vertical acceleration event, a precursor to hard landing, through QAR (Quick Access Recorder) flight data analysis, and prepares and implements mitigation measures. In this study, it is intended to contribute to safety management based on flight data analysis that identifies the characteristics of high vertical acceleration G event data that can cause such hard landing and detailed parameters of precursor signs, and to identify the causal relationship of the occurrence of the event by applying statistical analysis methods such as variance analysis, correlation analysis, and regression analysis models to identify the characteristics of the event occurrence and eliminate the cause in advance.

• 한국항공운항학회지
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• 제29권4호
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• pp.52-66
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• 2021

In the aviation, airmans play a key role in aviation safety and perform tasks within a given range based on professional knowledge. If they fail to properly fulfill their obligations under the Aviation Safety Act, the Ministry of Land, Infrastructure and Transport(MOLIT) will dispose of them in accordance with the purpose of the Aviation Safety Act. However, in the case of this disposition, it does not specifically consider the circumstances of the violation, and has a limitation in that the evidence regulations are too limited, and the contents of the disposition are uniform. Therefore, this study attempted to present a plan to improve the disposition in order to improve the problem of administrative disposition for airman. To this end, we conducted a comparative analysis of the disposition of airmans through overseas cases, and Specifically, the three-stage disposition model and effectiveness were conducted in the direction of specific judgment on violations and predictability of disposition. We would like to propose a safety improvement order to increase the level of safety and proposed amendments to the law for the method of imposing a fine for negligence.

• 한국항공운항학회지
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• 제32권2호
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• pp.72-81
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• 2024

Korean aviation authority required air service providers to submit public disclosure of aviation safety investment to encourage proactive and voluntary safety investments. In 2023, two airport operators and seventeen airlines disclosed their safety investment results and plans for the first time. This study aims to examine and analyze the current status of the disclosure system, identify insights for its development, and set directions for the future. Safety investments by airport operators decreased by 14.3% in 2022 compared to 2021 due to decreased aviation demand. Airline increased their safety investment by 46% to 4 trillion won, investing heavily in MRO and aircraft replacement, leading to a decrease in the average fleet age by 0.8 years. FSCs have shown a significantly higher level of safety investment compared to LCCs. However, LCCs show higher safety investment relative to revenue. It is necessary to consider the characteristics of each operator as well as the scale when comparing safety investments. A roadmap is suggested based on the importance of disclosure items for the strategic approach and improvement measures for the aviation safety investment disclosure system.

• 한국항공운항학회지
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• 제31권3호
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• pp.79-92
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• 2023

Aluminum alloys are important materials in modern aircraft. Aircraft failures due to corrosion are fatal and costly. Thus, information about the atmospheric corrosion of aluminum is helpful for aviation safety. This study employed four corrosion models and 12 environmental variables to improve knowledge of aluminum atmospheric corrosivity: PACER LIME, ICP, ISO CORRAG, and a modified model of CORRAG. This study applied each model on 47 aircraft operating bases in Korea and compared the results. In the results, The risk of corrosion was different for each model. The cause was the difference in environmental variables according to the model. Especially, the effect of ozone, which has recently been increasing, was shown in the results of PACER LIME. These findings suggest that caution is needed when assessing atmospheric corrosion risk as a single model. Furthermore, it means that the application and integration of various models are needed to improve atmospheric corrosion risk assessment.