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This paper presents a new model of ROI for comparing and evaluating the new, rapidly evolving aviation maintenance resource management (MRM) programs. This model is simple and direct to apply. The results from this new approach to ROI will permit airline maintenance employees to clearly see the financial benefits of these safety initiatives and to be able to plan accordingly. This new approach will also permit policy makers to compare MRM results on even terms with other programs competing for their attention.

While majority of the airlines are struggling to implement macro human factors principles in their maintenance activities, at least eleven corporate aviation departments (CADs) in the country are showing signs of success. The implementation philosophy of these CADs differs from others, and from the airlines in one fundamental aspect: it enforces a behavior change rather than an attitude change among the CAD employees. Consequently, they strive to achieve an employee behavior which is consistent within and across their flight operations, maintenance, and management functions. Ethnographic research was conducted at one of the eleven eligible sites to develop a theoretical model which is representative of the structure, the strategy, and the processes used by these aviation departments to implement macro human factors principles in aviation maintenance. This model was then tested at three other CADs that have a implemented similar approach.

Taylor (1999) reported the effects of national cultures on the work values of aviation mechanics and Patankar (1999) reported the effects of their professional and organizational cultures. Taylor and Patankar (1999) found effects of national and professional cultures on the outcomes of maintenance human factors programs. Considering those effects, this paper focuses on a strategy that would encourage the champions of human factors programs to develop a human resources master plan and integrate it with the organizational culture.