Pax window
For info - although a bit of thread drift - one of the very many cowling release incidents happened to an A320 Airtours aircraft out of LGW. The departing cowl took out an outer pax window but in this instance did not cause a depressurisation as the inner pane remained intact. Only reason for mentioning this is that it may not have been the exiting fan blade that hit the window (albeit that this was not the same aircraft type)