Browsing by Author "Chan, Wesley"

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    Challenges and solutions from accident investigators’ different professional backgrounds related to data collection and interpretation
    (International Society of Air Safety Investigators, 2022-08-31) Chan, Wesley; Li, Wen-Chin
    The collection and interpretation of multimedia data can be considered as a routine step in the accident investigation process. Data from FDRs, CVRs, and other sources such as airborne image recorders, datalink downloads, and QARs/DARs, have been widely used for accident investigation (ICAO, 2011). Novel sources of multimedia information have also been gaining in popularity. The proliferation of smartphones, security, and dashboard cameras (see Fig. 1) have resulted in an increase in the number of photos and videos captured of aircraft accidents (Aviation Safety Council, 2016). Techniques have been developed to support the use of these media files, such as through calibration of videos shot by bystanders with onboard CVR audio, to assist in accident investigations (Aviation Safety Council, 2016; Horak, 2019). Unmanned Aerial Vehicles (UAVs), or drones, have also become a popular tool. They are relatively inexpensive to obtain and can be deployed quickly by the investigative teams on arrival to an accident scene. Unlike using helicopters for aerial photography, drones can be flown close to obstacles, and do not have issues such as rotor downwash which may disturb the site (Gomez et al., 2017; Hawkins, 2016). Remote sensing and image filter technology can also assist in the identification of different materials. For example, liquid fuel, aircraft parts, vegetation, etc., can be mapped for wreckage survey and site safety assessments (Gomez et al., 2017; Privett et al., 2012). Digital photogrammetry can be used to create 3D reconstructions of the wreckage, enabling remote collaboration between investigative teams (Hawkins, 2016; Wang, 2022).
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    Data supporting: 'Investigating professional values among pilots, cabin crew, ground staff, and managers to develop aviation safety management systems'
    (Cranfield University, 2022-10-11 12:35) Chan, Wesley; Li, Wen-Chin
    This dataset includes survey responses from N=317 participants, on levels-of-agreement with conceptualisations of cultural dimensions. Professional culture (occupational background) was the independent variable for the cited article. In the dataset, professional culture is under the @4Groups variable, representing pilots (1); cabin crew (2); ground staff (3); airline managers (4).
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    Dataset "Creating more viable safety recommendations by revising the Human Factors Intervention Matrix (HFIX)"
    (Cranfield University, 2024-09-12) Chan, Wesley; Wen-Chin, Li; Yeun, Richard
    The objective of this study is to compare the pilot performance and attention allocation between a primary flight display integrated touchscreen inceptor and sidestick, and to understand the correlation among different measurements. Twenty participants flew separate simulated instrument landing system (ILS) approaches – with touchscreen inceptor / with traditional sidestick – during flight scenarios where an aircraft attitude disturbance was either present or absent. Results demonstrated that participant performance scores (a composite of flightpath and touchdown point error) were worse with the touchscreen inceptor compared to the sidestick during attitude disturbance scenarios.
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    Perception of causal factors in flight operations between ab-initio and expatriate pilots
    (IEEE, 2023-09-15) Chan, Wesley; Li, Wen-Chin
    The establishment of objectives in organizational safety management systems (SMS) are dependent on how the workforce perceives hazards and deficiencies. In the Asia region, it is common for airlines to recruit pilots through both ab-initio cadet programs, as well as to hire experienced expatriates from predominantly Western countries. When the workforce contains a mix of cultures and training backgrounds, perceptual differences may affect the relevance of SMS objectives and the effectiveness of consequential safety interventions. The present research compared experienced airline pilots from Asian ab-initio backgrounds with their Western, expatriate counterparts on the attribution of safety conditions related to hierarchical relations, organizational faults, human performance limitations, external faults, and human-machine interface conflicts. It was discovered that cultural values on interpersonal relations, desire for guidance, and social distance to an ‘in-group’ influenced the classification of safety deficiencies. The findings encourage SMS practitioners to include a wider diversity of perspectives when carrying out organizational SMS processes.