This document is prepared for presentation at the 27h Conference of the International Committee on Aeronautical Fatigue, scheduled to be held in Toulouse, France, 25-26 June 2001. A review is given on the work carried out in Sweden in the area of aeronautical fatigue during the period from June 1999 to May 2001. The review includes aircraft loading actions, basic studies of fatigue development in metals and composites, stress analysis and fracture mechanics, studies of crack propagation and residual strength, testing of joints and full-scale structures, and fatigue life predictions. A reference list of relevant papers issued during the period covered by the review is included. The Aeronautical Research Institute of Sweden (FFA) merged with the Defence Research Establishment (FOA) on January 1, 2001, into the new Swedish Defence Research Agency (FOI).