Aviation safety issues and actions
Recommendation issued to: Airservices Australia, AirServices Australia
|Date issued:||04 May 2004|
|Safety action status:||Monitor|
|Background:||Why this Recommendation was developed|
The Australian Transport Safety Bureau recommends that Airservices Australia estimate the overall midair collision risk at major general aviation airports (Archerfield, Bankstown, Jandakot, Moorabbin and Parafield) and compare these estimated risk levels with relevant acceptable risk criteria.
|Date issued:||29 June 2004|
|Response from:||AirServices Australia|
I refer to the ATSB investigation report into the May 2002
accident at Bankstown airport. Specifically, I refer to
recommendation 20040056 and our considerations of this
|Date issued:||03 August 2009|
|Response from:||Airservices Australia|
|Response status:||Closed - Accepted|
As you are aware, Recommendation R20040056 requested that Airservices estimate the overall midair collision risk at the General Aviation Aerodrome Procedures (GAAP) locations.
As stated in our interim response to the Recommendation, the development of a mathematical model to estimate this risk would need to encompass operations outside of the hours of coverage as well as those when the GAAP towel is manned.
I would suggest that the solution to this would be the development of defined minimum safety standards which, before they are exceeded, initiate airspace change to mitigate risk.
As the service provider we would like to suggest that the development by CASA of the CASR Part 71 would establish a framework of minimum standards.
We also wish to formally advise that the regulatory responsibility for this recommendation resides with CASA as the airspace regulator as of 1 July 2007. We are also happy to participate in any discussions and provide assistance where appropriate.
Civil Aviation Safety Authority (CASA) actions:
On 21 July 2009, following a number of reviews of General Aviation Aerodrome Procedures (GAAP) aerodromes the Director of Aviation Safety, CASA, issued a legal direction to Airservices Australia to implement United States (US) style Class D procedures at all GAAP aerodromes as well existing Class D aerodromes and Avalon aerodrome effective 3 June 2010.
The Office of Airspace Regulation (OAR) conducted a Post Implementation Review (PIR) ( http://www.casa.gov.au/wcmswr/_assets/main/lib100077/classd-postreview.pdf) to evaluate the new Class D procedures at all new and existing Class D aerodromes and determine the need for any additional actions or improvements to these procedures.
As a result of these changes the ATSB has classified the recommendation as Closed- Accepted.