In May 2013, Airservices permanently implemented an alternative departure procedure from Perth Airport that reduces the number of aircraft flying low over north-western suburbs during the night. The permanent implementation of this procedure follows a trial that started on 27 July 2011 and was known as the ‘Keels trial’.

The new flight path allows some aircraft that previously departed late at night to the north of the airport and then turned towards the coast to make use of RAAF airspace to the north of the airport when the area is not in use by Defence. This change did not apply to all aircraft departing to the north, or change any routes for flights departing to the south.

Previously, most of these aircraft (mostly heading to destinations in the Middle East and Africa) overflew Beechboro and suburbs to the west of Beechboro at between 2500 and 4000 feet (760 to 1200 metres). The new flight path has some of these aircraft take a more northerly route and only turning after they reach 8000 feet (2400m). This additional height reduces the impact of aircraft noise on the ground. It also provides some night-time respite for residents in Beechboro and the suburbs to the west of Beechboro.

Following additional community consultation and environmental assessment, in July 2014 use of this procedure was expanded to all hours when RAAF Pearce airspace is not in use. This will continue to deliver improved noise outcomes for residents living in nearby suburbs including Beechboro, Malaga and Ballajura.

Read the Post Implementation Review of the trial

Arriving aircraft from the east that are making an instrument approach to Runway 03 (long straight-in approach to the southern end of the main runway) converged at a point near Bedfordale. Airservices proposed to move this converging point some 8-10 kilometres to the east to reduce the number of aircraft impacting the Bedfordale area. This change came into effect on 5 March 2015.

Airservices identified an opportunity to modify the flight path for aircraft arriving from the north to land on the southern end of the Runway 03 at Perth Airport which would move aircraft away from Bickley, Byford, Carmel, Martin and Roleystone and closer to Bickley East, Karragullen and Pickering Brook which had smaller populations.

A Post Implementation Review of the trial was published in February 2015. The review found that community feedback demonstrated a noticeable benefit had been achieved from the trial and that as a result the change should become permanently implemented. Airservices actioned this on 5 March 2015.

Noise Abatement Procedures at Perth allow aircraft to be taken off Standard Instrument Departure (SID) procedure tracking once jets are at 5000 feet above ground level and non-jets 3000 feet except where impractical in the normal course of operation to and from the runways. This provision is primarily in place to assist the efficient management of aircraft close to the airport during peak periods.

In response to community concerns about the minimum height of aircraft over residential areas, Airservices held a trial from December 2013 to February 2014 for all aircraft flying to the east of Perth to maintain SID tracking until leaving 8000 feet except where required for operational reasons.

A Post Implementation Review of the trial was completed in December 2014. While community feedback was limited, Airservices concluded there was a noticeable benefit from the trial and that the change should be permanently implemented in Perth Airport’s Noise Abatement Procedures. This change was permanently implemented on 28 May 2015.