Kieran O'Donnell (Limerick City, Fine Gael) | Oireachtas source

Of the current 520 aircraft, assuming that the 140 aircraft will be included in the new 210 aircraft that are coming on stream, that leaves the bones of 80 planes. If 80 of the 520 are new and 480 of those old, will all of them be able to deal with the new fuel and all that?