translate English to French: The final ground for dismissing the appeal was that Dr. Kenney did not persuade the appeal board that there had been significant change between the 1992 and 1993 promotion exercise.
Le dernier motif de rejet de l'appel était que M. Kenney n'avait pu faire la preuve d'un changement notable durant l'intervalle séparant le processus de promotion de 1992 de celui de 1993.