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Trend Analyses of B777 FLCH Usage Beyond FAF Events (B777 항공기 Final Approach Fix(FAF) 이후 Flight Level Change(FLCH) 사용 이벤트 경향성 분석)

  • Chung, Seung Sup;Kim, Hyeon Deok
    • Journal of Advanced Navigation Technology
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    • v.25 no.3
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    • pp.248-255
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    • 2021
  • The main causes of the July 2013 OZ 214 accident were poorly performed approach and the failure to recognize the autothrottle in the HOLD position which the automated speed control was not provided. The pilots late decision for go-around was also a critical factor leading to the accident. The B777 POM restricts the use of FLCH mode beyond the FAF. This research utilized the QAR data of an airline's B777 fleet in the period of two years where 44 cases were found. In many cases, the FLCH mode was used for rapid descent from an higher than normal situation. In addition, in the base turn, continuous use of FLCH mode even when the path was below the glide path were observed. Airports with elevation above 500 ft MSL had a higher rate of occurrence. In this research, the proper descent planning and vertical path monitoring, and the adherence to the limitation set in the manuals and the stabilized approach criteria were re-emphasized as mitigation to reduce event occurences.

Positive Psychological Capital, Start-Up Intention, Start-Up Behavior Option Network Analysis (네일아트 자격증 학습자의 긍정심리자본, 창업의도, 창업행동 간의 연결망 분석)

  • Seo, Ran-Sug
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.16 no.1
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    • pp.139-146
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    • 2021
  • This study studied the network between positive psychology capital, intention of start-up, and start-up behavior for learners who are willing to start a business. The research targets were intended to study the impact of the connection relationship between each variable, targeting nail art certification learners who are willing to start their own businesses. For this study, the measurement variables of positive psychology capital, intention of start-up, and start-up behavior were set, and the collected data were analyzed for connection-centeredness and eigenvector after data collection. The findings are as follows. First, some variables affecting the intention of start-up showed optimism, resilience and hope of positive psychology capital. Second, the intention to start a business was shown to have a significant impact on the behavior of start-ups, which, unlike the preceding study, appeared to be almost outside the network structure, showing that the behavior of start-ups was not significantly affected by other variables. Third, it is important to increase self-efficacy in positive psychological capital in order to increase the behavior of start-ups. Fourth, the analysis of the eigenvactor among positive psychology capital, intention of start-up, and start-up behavior showed optimism as some of the most central variables. In other words, prospective start-ups were found to be aware of the hardships and expected positive results in the future. The implications of this study, along with the intention and behavior of prospective entrepreneurs, are important factors in positive psychology capital, and suggest the importance of various educational programs that can be enhanced by positive psychology capital in start-up education or training programs and what should be taught. In addition, this study analyzed the network by approaching it from the perspective of positive psychology capital of prospective entrepreneurs in order to enhance the effectiveness of support programs for start-ups by the government, public institutions or universities in the future.

Verification of Weight Effect Using Actual Flight Data of A350 Model (A350 모델의 비행실적을 이용한 중량 효과 검증)

  • Jang, Sungwoo;Yoo, Jae Leame;Yo, Kwang Eui
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.50 no.1
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    • pp.13-20
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    • 2022
  • Aircraft weight is an important factor affecting performance and fuel efficiency. In the conceptual design stage of the aircraft, the process of balancing cost and weight is performed using empirical formulas such as fuel consumption cost per weight in estimating element weight. In addition, when an airline operates an aircraft, it promotes fuel efficiency improvement, fuel saving and carbon reduction through weight management activities. The relationship between changes in aircraft weight and changes in fuel consumption is called the cost of weight, and the cost of weight is used to evaluate the effect of adding or reducing weight to an aircraft on fuel consumption. In this study, the problems of the existing cost of weight calculation method are identified, and a new cost of weight calculation method is introduced to solve the problem. Using Breguet's Range Formula and actual flight data of the A350-900 aircraft, two weight costs are calculated based on take-off weight and landing weight. In conclusion, it was suggested that it is reasonable to use the cost of weight based on the take-off weight and the landing weight for other purposes. In particular, the cost of weight based on the landing weight can be used as an empirical formula for estimating element weight and optimizing cost and weight in the conceptual design stage of similar aircraft.

The Effect of Flight Attendant's Psychological Empowerment on the Service Behavior 'by and beyond' CSM (객실승무원의 심리적임파워먼트가 CSM기반과 CSM초월 서비스행동에 미치는 영향)

  • Lee, SooKyoung
    • Journal of Korea Society of Industrial Information Systems
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    • v.26 no.6
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    • pp.97-118
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    • 2021
  • This study empirically examines the effect of the psychological empowerment of airline cabin crews on customer-focused job performance attitude, service behavior by CSM, and service behavior beyond CSM. The research model and associated hypotheses were verified with the structural equation model. The findings of the study reveal that psychological empowerment has a effect on customer-focused job performance attitude and service behavior by CSM, but no effect on service behavior beyond CSM. And it is also shown that customer-focused job performance attitude has an effect on service behavior by CSM but no effect on service behavior beyond CSM. In addition, customer-focused job performance attitude shows a mediating effect between psychological empowerment and service behavior by CSM. On the other hand, it is analyzed that there is no mediating effect between psychological empowerment and service behavior beyond CSM. This study implies that the psychological empowerment and customer-focused job performance attitude of cabin crews are important at point of contact with customers to improve service quality, and psychological empowerment reinforces service behavior by CSM on the premise of customer-focused job performance attitude.

A Study on Ways to Activate School Trips and Field Trips Through Focus Group Interview : Focus on the Gyeongsangbuk-do Area (경상북도 수학여행과 현장체험학습 활성화 방안 연구: Focus Group Interview(FGI)를 통한 질적 연구)

  • Nam, Tae-Suk;Hur, Jong-Guk
    • Journal of Korea Entertainment Industry Association
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    • v.14 no.6
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    • pp.29-42
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    • 2020
  • This study, we will identify and analyze the current status and trends of successful field trips and field experience learning in Korea to improve the future operation of the center so that the purpose of enhancing the regional economic ripple effect in Gyeongsangbuk-do and regaining its reputation as a school trip mecca and No. 1 location can be found. This study conducted qualitative research through FGI (Focus Group Interview) on accommodation managers, tourism-related stakeholders, tourism officials stakeholders, and tourism professors in order to explore new concepts of field trips and field experience learning in 23 cities and counties in Gyeongsangbuk-do, and ways to develop and promote tour programs based on the importance of experience. Through the FGI (Focus Group Interview) analysis results, problems related to improvement of accommodation, food and beverage, safety and service, cooperation among local tourism officials, enhancement of satisfaction with student group visitors linked to unique tourism resources and promotion, diagnosis and introduction of acceptance posture, and management of local residents, local tourism officials and public officials in Gyeongsangbuk-do needed to present the direction and opportunity of tourism policies in Gyeongsangbuk-do.

Study on the economic losses in the industrial sector in case of a Mt. Baekdu eruption scenario (백두산 화산재해로 인한 산업부문 피해액 산정에 관한 연구)

  • Choi, Eun-Kyeong;Yu, Soonyoung;Kim, Sung-Wook;Yoon, Seong-Min
    • Journal of International Area Studies (JIAS)
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    • v.18 no.3
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    • pp.145-168
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    • 2014
  • Given the distance from Mt. Baekdu, volcanic ash will have the direct impact on South Korea in case Mt. Baekdu erupts. Ash fall deposits or particulate matters(PM10) in the air will cause damages in various sectors. In particular, the PM10 impact on the manufacturing sector when the ash disperses in Korea is needed to be assessed since South Korea's manufacturing sector accounts for more than 30% of GDP. Meanwhile the economic impacts of PM10, including Asian dust, have been researched in Korea as the events become frequent, and losses in the manufacturing have been also reported. This study is to identify vulnerable sectors to volcanic ash in the korean industry, and to assess economic losses in case of a Mt. Baekdu eruption scenario, based on the historical loss experience with particulate matters. Study results show that airline, precision such as electronics and semiconductors, distribution, shipbuilding, car, leisure, glass, dairy farming are vulnerable to volcanic ash, or PM10. The economic losses in both car and shipbuilding industry is estimated to 46.49 billion Korean won due to shutdown for 6 hours in case of a Mt. Baekdu eruption scenario.

A Study on Awareness of the Revitalization of Tourism Promotionality through Focus Group Interview : Focus on the Gyeongsangbuk-do Area (관광 홍보관 활성화에 관한 인식 : 경상북도 지역 중심으로)

  • Nam, Tae-Suk;Hur, Jong-Guk
    • Journal of Korea Entertainment Industry Association
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    • v.13 no.6
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    • pp.1-14
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    • 2019
  • This study explored ways to activate tourism promotion centers located in 23 regions of Gyeongsangbuk-do and carried out qualitative research through FGI(Focus Group Interview) to the heads of tourism promotion agencies, public officials, and professors. The FGI(Focus Group Interview) analysis results discussed the problems of tourism promotion and information center facilities recognized by stakeholders in Gyeongsangbuk-do and service improvement cooperation. At a time when the importance of the tourism industry is being emphasized, it is time to expand and improve the facilities of the tourism promotion center as a tourism information facility for Koreans and foreigners. Gyeongsangbuk-do Province has a natural environment and unique tourism resources that can become a tourist attraction in South Korea. In particular, four topics were drawn: providing satisfaction with visitors linked to regional economic revitalization cooperation and tourism guidance, and measures to boost revenue generation at public relations centers and information centers in Gyeongsangbuk-do.

Effects of Experiential Fishing Village Authenticity on Experience Value and Subjective Well-being (어촌체험휴양마을의 고유성이 체험가치와 주관적 행복감에 미치는 영향)

  • Sung-Dae Cho;Chang-Soo Kim
    • The Journal of Fisheries Business Administration
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    • v.55 no.1
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    • pp.55-76
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    • 2024
  • The purpose of this study is to elucidate the impact of authenticity on experience value and subjective well-being among visitors who have participated in direct experiential activities in experiential fishing villages. The research method used literature research methods and empirical research methods using questionnaires, and this questionnaire was composed by determining three major variables and seven constituent factors for each variable through factor analysis and conducting prior research and preliminary surveys. The survey was conducted from February 5, 2023 to April 5, 2023 among experimental fishing villages with excellent ratings for scenery (environment), service, experience, accommodation, and food, and four villages that can experience tidal flats and manage customers online. The survey was conducted from February 5, 2023 to April 5, 2023, among experimental fishing villages with excellent ratings for scenery (environment), service, experience, accommodation, and food, and four villages that can experience tidal flats and manage customers online. The results of this study are as follows. First, the factors of authenticity in experiential fishing villages include three sub-factors: objective authenticity, constructive authenticity, and existential authenticity. The factors of experience value include two sub-factors: emotional values and functional values. Subjective well-being is derived from positive emotion and life satisfaction. Second, upon examining the importance of authenticity in experiential fishing villages, it was found that existential authenticity and objective authenticity, in that order, have a significant impact on emotional values. However, constructive authenticity did not have a significant impact on emotional values. Third, in terms of functional values, constructive authenticity, existential authenticity, and objective authenticity, in that order, had a significant impact. Fourth, experience value, in the order of emotional values and functional values, had a significant impact on positive emotion and life satisfaction of subjective well-being. Therefore, it was confirmed that the authenticity of experiential fishing villages is important as a strategy to enhance experience value and subjective well-being. Especially, considering that the majority of visitors to experiential fishing villages are family-centered (86.5%), applying marketing management strategies to develop programs that enhance existential authenticity and improve emotional values could elevate the subjective well-being of experiential visitors.

Comparative Study on the Aviation Monetary Penalty in Korea and the United States (한·미 항공 과징금 제도의 비교)

  • Lee, Chang-Jae
    • The Korean Journal of Air & Space Law and Policy
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    • v.35 no.2
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    • pp.41-74
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    • 2020
  • The monetary penalties system inherently has efficiency as DNA. In the event that administrative measures to recover unfair profits from businesses that violate the law, deprive business licenses, or order to suspend business, infringe the interests of ordinary consumers, a system that can achieve the same effect through financial sanctions. It is a monetary penalties. In addition, it is convenient for the government because it takes effect only by the administrative agency's unilateral imposition order compared to the trial process, which takes a long time and huge cost to prove the illegality. However, it is questionable whether procedural legitimacy is well established in Korea's aviation monetary penalties. Compared to foreign legislation, Korea's aviation monetary penalties system need to be improved. This paper was for the purpose of studying the improvement direction of the monetary penalties system disposed of in the Korean aviation field. This study suggests the direction by examining the US system, which is an aviation advanced country, in the aviation safety area. The research was conducted with the intention of exploring the direction as follows: First, the characteristics of the Federal Aviation Administration (FAA) aviation administrative sanctions and the US aviation penalty system will be outlined. Furthermore, with the recent paradigm shift in aviation safety management, this paper tried to look at new trends that focus on autonomous reporting of aviation safety as a proactive and preventive measure in conventional post-airline accident management administration, focusing on various systems including ASAP. This article also reviewed the formal process for imposing monetary penalties adopted by the FAA. Based on the above review, this paper also looked at ways to improve the reporting system for aviation safety in Korea.

'Open Skies' Agreements and Access to the 'Single' European Sky;Legal and Economic Problems with the European Court of Justice's Judgment in 'Commission v. Germany'(2002) Striking Down the 'Nationality Clause' in the U.S.-German Agreement (항공(航空) 자유화(自由化)와 '단일(單一)' 유럽항공시장(航空市場) 접근(接近);유럽사법재판소(司法裁判所)의 미(美) ${\cdot}$ 독(獨) 항공운수협정(航空運輸協定)상 '국적요건(國籍要件)' 조항(條項)의 공동체법(共同體法)상 '내국민대우(內國民待遇)' 규정 위반(違反) 관련 '집행위원회(執行委員會) 대(對) 독일연방(獨逸聯邦)' 사건 판결(判決)(2002)의 문제점을 중심으로)

  • Park, Hyun-Jin
    • Journal of the Korean Society for Aviation and Aeronautics
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    • v.15 no.1
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    • pp.38-53
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    • 2007
  • In a seminal judgment of November 2002 (Case C-476/98) relating to the compatibility with Community laws of the 'nationality clause' in the 1996 amending protocol to the 1955 U.S.-German Air Services Agreement, the European Court of Justice(ECJ) decided that the provision constituted a measure of an intrinsically discriminatory nature and was thus contrary to the principle of national treatment established under Art. 52 of the EC Treaty. The Court, rejecting bluntly the German government' submissions relying on public policy grounds(Art. 56, EC Treaty), seemed content to declare and rule that the protocol provision requiring a contracting state party to ensure substantial ownership and effective control by its nationals of its designated airlines had violated the requirement of national treatment reserved for other Community Members under the salient Treaty provision. The German counterclaims against the Commission, although tantalizing not only from the perusal of the judgment but from the perspective of international air law, were nonetheless invariably correct and to the point. For such a clause has been justified to defend the 'fundamental interests of society from a serious threat' that may result from granting operating licenses or necessary technical authorizations to an airline company of a third country. Indeed, the nationality clause has been inserted in most of the liberal bilaterals to allow the parties to enforce their own national laws and regulations governing aviation safety and security. Such a clause is not targeted as a device for discriminating against the nationals of any third State. It simply acts as the minimum legal safeguards against aviation risk empowering a party to take legal control of the designated airlines. Unfortunately, the German call for the review of such a foremost objective and rationale underlying the nationality clause landed on the deaf ears of the Court which appeared quite happy not to take stock of the potential implications and consequences in its absence and of the legality under international law of the 'national treatment' requirement of Community laws. Again, while US law limits foreign shareholders to 24.9% of its airlines, the European Community limits non-EC ownership to 49%, precluding any ownership and effective control by foreign nationals of EC airlines, let alone any foreign takeover and merger. Given this, it appears inconsistent and unreasonable for the EC to demand, $vis-{\grave{a}}-vis$ a non-EC third State, national treatment for all of its Member States. The ECJ's decision was also wrongly premised on the precedence of Community laws over international law, and in particular, international air law. It simply is another form of asserting and enforcing de facto extraterritorial application of Community laws to a non-EC third country. Again, the ruling runs counter to an established rule of international law that a treaty does not, as a matter of principle, create either obligations or rights for a third State. Aside from the legal problems, the 'national treatment' may not be economically justified either, in light of the free-rider problem and resulting externalities or inefficiency. On the strength of international law and economics, therefore, airlines of Community Members other than the designated German and U.S. air carriers are neither eligible for traffic rights, nor entitled to operate between or 'free-ride' on the U.S. and German points. All in all and in all fairness, the European Court's ruling was nothing short of an outright condemnation of established rules and principles of international law and international air law. Nor is the national treatment requirement justified by the economic logic of deregulation or liberalization of aviation markets. Nor has the requirement much to do with fair competition and increased efficiency.

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