Professional certification is required for aircraft maintenance technicians in order to undertake sophisticated maintenance tasks that need a wide set of skills and competencies. Due to the increasing demand for workforce preparedness for Industrial Revolution 4.0, numerous publications stress only a subset of aircraft maintenance skills criteria in their skills assessment curriculum. The purpose of this paper is to review previous research publications on skill and competency evaluation in the aircraft maintenance industry in order to develop a comprehensive set of skill and competency assessment criteria through a systematic review of the literature. It applies the PRISMA approach in selecting and evaluating the included articles. The papers were retrieved from five journal databases using a set of Boolean search terms related. The filtered fifteen articles are systematically reviewed for talent evaluation criteria applicable to the aircraft maintenance work scope in order to deal with the Industrial Revolution 4.0 (IR4.0). Certain articles concentrate on a subset of assessment criteria for enhancing and tracking critical skills assessment criteria for the aircraft maintenance workforce, rather than on IR4.0 skill standards specifically. This paper summarizes seven skill criteria gathered in order to develop a comprehensive skill assessment framework for aircraft maintenance workforce.