School of Aviation

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    Grappling with complexity : finding the core problems behind aircraft accidents : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Aviation at Massey University, Palmerston North, New Zealand
    (Massey University, 2006) Zotov, Dmitri Victorovitch
    The purpose of accident investigation is the discovery of causal factors, so that they may be remedied, in order to avert the recurrence of accidents (ICAO, 1994). However, experience has shown that the present intuitive methods of analysis do not always achieve this aim. Investigation failure may come about because of failure to discover causal factors, or to devise effective remedies, or to persuade those in a position to act of the need to do so. Each of these types of failure can be made less likely by the use of formal analytical methods which can show whether information gathering has been incomplete, and point to the sources of additional information that may be needed. A formal analysis can be examined by formal logical tests. Also, the use of formal change mechanisms can not only devise changes likely to be effective, but can present these changes in such a way that the case for them is compelling. Formal methods currently available are concerned with what happened, and why it happened. To produce generic remedies which might avert future accidents of similar type, some formal change mechanism is needed. The Theory of Constraints has become widely adopted in business as a way of replacing undesirable effects with desired outcomes. The Theory of Constraints has not previously been used for safety investigation, and a principal object of this thesis is to see whether it can usefully be employed in this area. It is demonstrated that the use of formal methodology can bring to light factors which were overlooked during an official accident investigation, and can ‘tell the story’ in a more coherent manner than is possible with present methods. The recommendations derived from the formal analysis are shown to be generic in nature, rather than particular to the airline involved and the accident studied, and so could have a wider effect in improving safety.
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    Potential on-time performance improvements at the Lufthansa Station at Frankfurt Airport : a human factors approach : a thesis presented in partial fulfilment of the requirements for the degree of Master of Aviation at Massey University, Auckland (Albany), New Zealand
    (Massey University, 2006) Speri, Joerg
    Departure punctuality has increasingly gained attention over the last few years. This development is due to the realization what important role this issue plays in the economics of the airline industry. Punctuality is not just a sound performance indicator but also allows airlines to differentiate themselves from their competitors. In addition the issue holds a significant potential for cost savings. For this reason many airlines have started special programmes to improve their punctuality performance, and so did Lufthansa. However, despite this increasing attention, outbound punctuality levels have not yet reached satisfactory levels. Therefore, this study aimed at contributing to this process by identifying potential ontime performance improvements at the Lufthansa station at Frankfurt Airport. As an underlying framework, a Human Factors approach was chosen. Central issues in the focus of the study were the individual perceptions and attitudes towards punctuality by the relevant front line staff. In order to examine these issues a survey among the Flight Managers, Assistant Flight Managers, and Section leaders was carried out. The results of this survey were then put into correlation with the delay statistics published. The results of the survey indicate a potential lack of communication among the front line staff as well as between them and higher organizational entities. Moreover, certain distrust towards the delay statistics became evident. Although the staff members seem quite well motivated, they feel a lack of commitment by their superiors. In addition, the survey gathered some interesting ideas for punctuality improvements held by the front line staff members. Besides very concrete topics for discussion, the central outcome of the study was the recommendation to analyze all relevant processes at the Lufthansa station from a Human Factors perspective in order to improve the communicative situation. Moreover, the study suggests introducing appropriate incentive schemes in order to promote better on-time performance. Altogether these should result in a noticeable improvement of the punctuality situation at the Lufthansa station.