translate English to French: In the event the wheelcase assembly failed, it would have led to the loss of several pressurized systems that are driven by it. A loss of those systems would have presented a serious in-flight emergency.
S’il y avait eu défaillance de la boîte d’engrenages, il y aurait eu interruption du fonctionnement de nombreux systèmes pressurisés entraînés par celle-ci, laquelle interruption aurait provoqué une grave situation d’urgence en vol.