Aircraft maintenance can be described as a complexly interactive and technical system. The ever-increasing complexity of aircraft maintenance place greater demands on the professions responsible for that work The maintenance work is performed within a risky and complex framework. A case study is performed within a military aircraft maintenance organization. The case study is analysed, and the aim is to identify problems in the work situation for aircraft maintenance professionals. The knowledge and practical experience of the different professions, besides coordination and cooperation between them, are of great value for decision making in complex situations. For this context the paper highlights some design challenges for creating information systems for professions, where quick access to common information and professional knowledge is of vital importance. The aim of this paper is to find challenges for information and knowledge management, according to the problems found in the empirical aircraft maintenance case. This paper shows how social dimensions such as collaboration and sharing of common information and professional knowledge are played out within aircraft maintenance.