Ayiei Ayiei - Academia.edu (original) (raw)

Papers by Ayiei Ayiei

Aerospace, Sep 2, 2020

Aircraft maintenance includes all the tasks needed to ensure an aircraft's continuing airworthine... more Aircraft maintenance includes all the tasks needed to ensure an aircraft's continuing airworthiness. Accidents that result from these maintenance activities can be used to assess safety. This research seeks to undertake a preliminary investigation of accidents that have maintenance contributions. An exploratory design was utilized, which commenced with a content analysis of the accidents with maintenance contributions (n = 35) in the official ICAO accident data set (N = 1277), followed by a quantitative ex-post facto study. Results showed that maintenance contributions are involved in 2.8 ± 0.9% of ICAO official accidents. Maintenance accidents were also found to be more likely to have one or more fatalities (20%), compared to all ICAO official accidents (14.7%). The number of accidents with maintenance contributions per year was also found to have reduced over the period of the study; this rate was statistically significantly greater than for all accidents (5%/year, relative to 2%/year). Results showed that aircraft between 10 and 20 years old were most commonly involved in accidents with maintenance contributions, while aircraft older than 18 years were more likely to result in a hull loss, and aircraft older than 34 years were more likely to result in a fatality.

Journal of aerospace engineering and mechanics, Sep 7, 2019

The media coverage of remotely piloted aircraft systems (RPAS) has highlighted some issues, parti... more The media coverage of remotely piloted aircraft systems (RPAS) has highlighted some issues, particularly in terms of security and privacy concerns. As such, it is essential to understand the public's perception towards these systems. The purpose of this study was to assess the public's perception towards 1) The terminology used to define RPAS, which varies across the industry; 2) The applications, current and future, of RPAS; 3) The future of passenger transport involving RPAS, and 4) RPAS in general. It was found that there was little difference between the "terms" used to describe RPAS; however, there was a significant difference at the 90% confidence level for "remotely piloted aircraft systems" over "drones". In terms of RPAS applications, community based applications had a positive perception, while personal applications were neutral. The implementation of RPAS into passenger transport aircraft was strongly negative. Finally, there was an overall positive perception towards RPAS.

Safety, 2020

The phenomenon of encountering instrument meteorological conditions (IMCs) while operating an air... more The phenomenon of encountering instrument meteorological conditions (IMCs) while operating an aircraft under visual flight rules (VFRs) remains a primary area of concern. Studies have established that pilots operating under VFRs that continue to operate under IMCs remains a significant cause of accidents in general aviation (GA), resulting in hundreds of fatalities. This research used the Australian Transport Safety Bureau (ATSB) database, which contained a total of 196 VFR to IMC occurrences, from 2003 to 2019, with 26 having formal reports. An explanatory design was adopted, commencing with a qualitative study of the 26 occurrences with reports followed by a quantitative study of all 196 occurrences. Factors investigated included the locations and date of the occurrences, involved aircraft (manufacturer, model, type), pilot details (licenses, ratings, h, and medical), number of fatalities, and causal factors. Fisher’s exact tests were used to highlight significant relationships. R...

Journal of Aircraft and Spacecraft Technology, 2020

In aviation, procedural errors persist despite pilots having the correct knowledge and ability to... more In aviation, procedural errors persist despite pilots having the correct knowledge and ability to perform particular flight tasks. These errors can be attributed to diagnostic errors, inaccurate situational assessment and poor hazard awareness. Eye tracking has emerged as a technology that can be used to monitor pilot performance and provide insights into attentional distribution and the underlying decisional processes. The study used a systematic literature review based on the Preferred Reporting Items for systematic reviews and Meta-Analyses (PRIMA) Statement. Relevant publications were searched from 25 databases. To search the databases, the study used the keywords "eye tracking", "eye tracking measurements", "eye tracking aviation safety" and "eye tracking pilot flight performance", as well as "eye tracking and pilot training" and "eye tracking and pilot assessment". From these databases, 48 publications were retrieved for analysis. Out of the 48, 33 were abstracts and 15 were full-texts. The 15 full-texts proceeded to systematic literature analysis. These studies were further divided to studies reporting the use of eye tracking as a training tool (7) and studies reporting the use of eye tracking as an assessment tool (8). The literature review demonstrates that eye tracking is a valid and effective tool that can provide quantitative data for flight performance and safety assessment. Continued growth in aircraft cockpit automation means that eye tracking remains an urgent and promising development in aviation research, especially in real-time eye tracking to predict and prevent pilot errors and in the integration of eye tracking technology in intelligent cockpit design.

Journal of Aerospace Engineering and Mechanics, 2019

Journal of aircraft and spacecraft technology, 2020

Public reporting burden for this collection of information is estimated to average 1 hour per res... more Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instruction, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to

Fatigue of Aircraft Structures, 2020

Ensuring aircraft are technically safe to operate is the realm of airworthiness, literally worthy... more Ensuring aircraft are technically safe to operate is the realm of airworthiness, literally worthy of being in the air. This is achieved not only with technological tools and techniques, or with just personnel and manpower, it is guided and supervised by managers and leaders. As such, the objective of this paper is to understand the role leadership plays in maintaining aviation safety and aircraft airworthiness. To this end, a case study of the Hawker Sidley Nimrod XV230 accident that occurred on September 2, 2006 near Kandahar in Afghanistan, was utilized. The study concluded that leadership is a key aspect, specifically finding that leaders are responsible for articulating the organizations vision, strategic objective setting, and monitoring the achievement of those objectives. It was concluded that operational airworthiness is directly dependent on the leadership ability to provide direction, workplace culture, continued learning, and establish risk management systems for safe and...

International Journal of Multidisciplinary Research and Analysis, 2021

Africa contributes only 3.9% in air traffic, but records 19% of aviation accidents, in terms of f... more Africa contributes only 3.9% in air traffic, but records 19% of aviation accidents, in terms of fatalities. High accident rates are attributed to poor compliance with International Civil Aviation Organization (ICAO) Standards and Recommended Practices (SARPs). This study analyzed the prevalence of aircraft accidents in the youngest African country, South Sudan, which obtained independence in July 9, 2011. The quantitative study examined aviation accident databases to determine the number of aircraft accidents in South Sudan, the aircraft manufacturers and aircraft models, number of fatalities, and causes of accidents, categorized as pilot error, technical failure, air traffic control, or weather-related events. The accidents were collected from the Aviation Safety Network (ASN) database, which is maintained by the Flight Safety Foundation. A total of 83 accident cases were examined, with 32 satisfying the criteria of accidents covering the July 2011 to May 2021 period. The findings ...