Door of Athlone-based air ambulance helicopter that fell off hit roof of building

The door of an Air Corps helicopter that fell in Dublin hit the roof of a building on the way down.

The door then landed on the grounds of a secondary school in Clondalkin.

The rear door of the helicopter detatched and fell more than 250 meters onto the grounds of Moyle Park secondary school in Clondalkin at around 5:52 yesterday evening.

Locals in the area claim it hit the roof of a building on the way down, saying it could clearly be heard.

It had just completed a life-saving mission to a Dublin Hospital and was returning to Baldonnell for fuel.

Full investigations are being carried out by the Defence Forces while full emergency operations being conducted by the Air Corps are continuing as normal.

It’s not the first incident of its kind involving this Air Corps helicopter model – AW139.

It was the same model which lost a door while flying over Killarney golf club in 2009, with a government minister on board.

The then-tourism minister Martin Cullen was being flown back to Dublin when that incident occured, with the door later found in Killarney National Park.