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Recommendation issued to: Civil Aviation Safety Authority

Recommendation details
Output No: R20030058
Date issued: 04 August 2003
Safety action status:
Background:

Output text

Safety Recommendation

The Australian Transport Safety Bureau recommends that the Civil Aviation Safety Authority review the Table of Cruising Levels in AIP and its continuing relevance.

Initial response
Date issued: 20 October 2003
Response from: Civil Aviation Safety Authority
Action status: Closed - Not Accepted
Response text:

Thank you for providing the Authority with a copy of Aviation Occurrence Brief 200203094 on the incident involving a Boeing 737 aircraft registered VH-TJT and a Cessna 500 Citation aircraft registered VH-HKX, which occurred at 324km NNE Melbourne VOR on 8 July 2002.

The Authority has considered the Brief and provides the following comments in response to the recommendation below.

R20030058

The Australian Transport Safety Bureau recommends that the Civil Aviation Safety Authority review the Table of Cruising Levels in AIP and its continuing relevance.

CASA response

The Table of Cruising Levels in AIP gives flight levels for aircraft to be flown depending upon their direction of flight and is intended to ensure that aircraft going in different directions are not at the same level during cruise. It applies to aircraft in controlled airspace (although ATC can override it for aircraft under their control) and outside controlled airspace (where aircraft arrange separation between themselves without ATC involvement).

In CASA's opinion, the table was not pertinent to the breakdown of vertical separation in this case because ATC, by authorising non-standard levels, did not adhere to it. However, the Authority does consider the table to be relevant to aircraft operations in a broader sense.

Thank you for bringing this matter to the attention of the Authority.

 
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Last update 03 April 2012