'Spectacular error' in Dublin Airport planning sees more homes in need of soundproofing 

Ryanair flight FR1964 takes off from Dublin Airport's new north runway last August. Picture: Brian Lawless

Dublin Airport will have to install soundproofing for more homes than originally envisaged because of a "spectacular error" in the planning of its new north runway.

The airport opened the €320m second runway in August, but it has emerged that some of the flight paths being operated are "not the ones that were agreed" during the planning stages.