Cookies help us to understand how you use our website so that we can provide you with the best experience when you are on our site. To find out more, read our privacy policy and cookie policy.
Manage Cookies
A cookie is information stored on your computer by a website you visit. Cookies often store your settings for a website, such as your preferred language or location. This allows the site to present you with information customized to fit your needs. As per the GDPR law, companies need to get your explicit approval to collect your data. Some of these cookies are ‘strictly necessary’ to provide the basic functions of the website and can not be turned off, while others if present, have the option of being turned off. Learn more about our Privacy and Cookie policies. These can be managed also from our cookie policy page.
Strictly necessary cookies(always on):
Necessary for enabling core functionality. The website cannot function properly without these cookies. This cannot be turned off. e.g. Sign in, Language
Analytics cookies:
Analytical cookies help us to analyse user behaviour, mainly to see if the users are able to find and act on things that they are looking for. They allow us to recognise and count the number of visitors and to see how visitors move around our website when they are using it. Tools used: Google Analytics
Social media cookies:
We use social media cookies from Facebook, Twitter and Google to run Widgets, Embed Videos, Posts, Comments and to fetch profile information.
No analytics or social cookies have been enabled on this site. There are no cookies to review.
Post implementation review of the Australian Backup Navigation Network (BNN)
Consultation has concluded
In 2016, the Civil Aviation Safety Authority (CASA) mandated the use of Global Navigation Satellite System (GNSS) as the primary means of instrument flight rules (IFR) navigation in Australia.
With the reduced reliance on ground-based navigation aids (navaids) as a result, a number of navaids were subsequently decommissioned. The remaining navaid network formed the Backup Navigation Network (BNN), consisting of over 200 navaids at 124 airports across Australia (see attachments for details).
The BNN is maintained and monitored by Airservices to support a GNSS contingency mode of operation, in the unexpected case where a pilot is unable to access the GNSS service.
As part of a post implementation review (PIR), Airservices is seeking feedback from aircraft operators on the use and effectiveness of the BNN. To provide your feedback, please take the survey below.
In 2016, the Civil Aviation Safety Authority (CASA) mandated the use of Global Navigation Satellite System (GNSS) as the primary means of instrument flight rules (IFR) navigation in Australia.
With the reduced reliance on ground-based navigation aids (navaids) as a result, a number of navaids were subsequently decommissioned. The remaining navaid network formed the Backup Navigation Network (BNN), consisting of over 200 navaids at 124 airports across Australia (see attachments for details).
The BNN is maintained and monitored by Airservices to support a GNSS contingency mode of operation, in the unexpected case where a pilot is unable to access the GNSS service.
As part of a post implementation review (PIR), Airservices is seeking feedback from aircraft operators on the use and effectiveness of the BNN. To provide your feedback, please take the survey below.