Aviation safety issues and actions

ERSA procedure

Issue number: AO-2020-012-SI-01
Issue owner: Civil Aviation Safety Authority
Transport function: Aviation: General aviation
Background: Investigation Report AO-2020-012
Issue release date: 31 March 2022
Current issue status: Closed – Adequately addressed

Safety issue description

The En-Route Supplement Australia included a requirement to add 1,000 ft to the prescribed practice instrument approach ‘altitude’ at Mangalore Airport. The procedure did not detail whether this height was to be applied to the minimum descent altitude or to all approach altitudes, resulting in varied application and an increased risk of traffic conflicts. (Safety issue).

Response by Civil Aviation Safety Authority (CASA)

CASA is reviewing the entries in AIP-ERSA for Mangalore as well as Ballarat, Busselton and Latrobe Valley for conducting training on NDB, VOR and RNP approaches to determine if it is appropriate to add 1,000 ft to all of the procedure altitudes. This may result in the removal of these published training procedures. If this is the case then CASA undertakes to engage with all flying schools and organisations that conduct this type of training prior to their removal from the AIP-ERSA.

ATSB comment

The ATSB notes that the AIP-ERSA requirement for Mangalore has been in place for a considerable period of time and is concerned about the indefinite nature of the proposed evaluation and other associated activities to address the safety issue.

As a result, the ATSB has issued the following safety recommendation.

Safety recommendation

Action number: AO-2020-012-SR-06
Action organisation: Civil Aviation Safety Authority
Date: 31 March 2022
Action status: Closed

The ATSB makes a formal safety recommendation, either during or at the end of an investigation, based on the level of risk associated with a safety issue and the extent of corrective action already undertaken. Rather than being prescriptive about the form of corrective action to be taken, the recommendation focuses on the safety issue of concern. It is a matter for the responsible organisation to assess the costs and benefits of any particular method of addressing a safety issue.


Additional correspondence

Response date: 19 May 2022
Response from: Civil Aviation Safety Authority
Action status: Closed
Response text:

In response to the Safety Recommendation from AO-2020-012 please see below the update to the ERSA that will be published on 8 September 2022.

ATSB comment date: 29 June 2022
ATSB comment:

The ATSB recognises the changes made by CASA in response to the safety recommendation. The ATSB will continue to monitor until the ERSA is published on 8 September 2022.

Response date: 16 September 2022
Response from: Civil Aviation Safety Authority
Action status: Closed
Response text:

The ATSB acknowledges the work completed by CASA to respond to this recommendation. The En-Route Supplement Australia, valid from 8 September 2022, contains updated local procedures at Mangalore as well as three other affected aerodromes (Ballarat, Busselton and Latrobe Valley) to specify:

The ATSB also acknowledges that the new wording should reduce the risk of the safety issue. Therefore the safety recommendation is closed.

Last update 16 September 2022