Duncan Smith (Dublin Fingal, Labour) | Oireachtas source

An email has been released to the committee that was sent to the IAA on 7 September from someone in the DAA. That person states:

From my limited understanding, I believe collaborative engagement between the DAA and IAA ANSP over a number of years resulted in a set of assumptions being developed for noise modelling purpose. The IAA ANSP kindly provided technical information to assist DAA to assist our consultant to complete noise modelling aligned to these assumptions. It was made clear that this was indicative data only and no form of SIDs had been designed at this stage. The DAA used the output of this modelling in the relevant action application as well as modelling information provided to Fingal County Council for the Fingal county development plan and local area plan for land use planning noise zones. While I understand no instruction was given to IAA ANSP to design the SID aligned to this modelling, I am sure you can understand that it now causes a challenge that a significant number of aircraft are overflying areas not indicated in the relevant action application or communication material issued publicly.

The email was sent from the DAA to the IAA not long after the new runway opened.