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Project AS 10/24 - Clarifying terms used in relation to Terminal Instrument Flight Procedures

Topic code: 
Airspace and Aerodromes
Project status: 
Closed

Closure notes

Project closed 19 April 2012.

Following publication of NFRM AS 10/23-24 on 13 April, this project has now been completed. Clarifying terms used in relation to, and withdrawal protocol for Terminal Instrument Flight Procedures - Amendments to CASR Part 139, CASR Part 173, the CASR Dictionary, MOS Part 173.

Amendments to CASR Parts 139 and 173, the CASR Dictionary and MOS Part 173

CASA has published the legal drafts for amendments to CASR Parts 139 and 173, the CASR Dictionary and MOS Part 173 for project AS 10/23 (Terminology amendment and review of Terminal Instrument Flight Procedure withdrawal protocol - Manual of Standards Part 173 - Standards applicable to Instrument Flight Procedure Design) and project AS 10/24 (Clarifying terms used in relation to Terminal Instrument Flight Procedures).

As a result of comments received from the earlier consultation and further review, these amendments have been revised. Subject to approval by the Director of Aviation Safety, CASA intends to proceed with final rule making and will publish a Notice of Final Rule Making (NFRM) in due course.

Please note that the Amendment Regulations also relate to project: AS 08/08 (Amendment of CASR Part 139 and MOS Part 139 - Regulations for the control of vehicles operating on the manoeuvring area of certain high-density aerodromes).The amendments to the CASRs for projects AS 10/23, AS 10/24 and AS 08/08 have been combined by OLDP in the one set of Civil Aviation Safety Amendment Regulations. Schedule 1 of the Amendment Regulations contains the amendments related to projects AS 08/08 and AS 10/24. Schedule 2 of the Amendment Regulations contains the amendments related to project AS 10/23.

Readers should also note that, in addition to the amendments to CASR Part 173 resulting from projects AS 10/23 and AS 10/24, an amendment to CASR 173.035 (Designing terminal instrument flight procedures requires procedure design certificate) is also being made. This amendment was initiated by OLDP to address a drafting error in the earlier version of the provision and to present the provision in clearer terms. There is no change in the policy intent of the provision.

Issue

Currently, it is a strict liability offence under CASR 139.030 for a person to operate a publicly available aerodrome with a non-precision approach flight procedure design, unless the aerodrome is certified or registered.

Certification or registration of aerodromes provides CASA with the safety assurance that obstacles that may infringe the instrument approach surfaces to the aerodrome, have been reported to Air Services Australia and CASA for publication and broadcast to pilots.

The term non-precision approach flight procedure doesn't cover all types of instrument flight procedures.

This raises immediate safety concerns because there is the possibility of instrument flight procedures, being produced for aerodromes which are neither registered nor certified.

At such aerodromes, monitoring the approaches to the aerodrome is not obligatory and CASA therefore has no assurance that obstacles within the approach surfaces to the aerodrome have been reported. Safety margins are therefore reduced as there is the possibility for aircraft to collide with unreported obstructions.

Project Objective

To implement amendments to address this issue.

Status

This project was approved by Peter Boyd, EM Standards Development and Future Technology Division on 30 November 2010.

Rules affected

MOS Part 173

Project management

Project Leader: Matthew Windebank

Project Sponsor: Peter Cromarty, GM Airspace and Aerodrome Regulation Group

Standards Development Project Manager: Tim Graham

Project Priority

High

Airspace and Infrastructure Users Group (SCC)

Airspace and Infrastructure Users Group Sub-committee

History

Title Details Date
Consultation updates in 2012
Project AS 10/24 - Terminology amendment and review of Terminal Instrument Flight Procedure withdrawal protocol - Manual of Standards Part 173 - Standards applicable to Instrument Flight Procedure Design This project is now closed.

Refer to the project closure notes for further information.
19 Apr 2012
NFRM AS 10/23-24 - Clarifying terms used in relation to, and withdrawal protocol for Terminal Instrument Flight Procedures – Amendments to CASR Part 139, CASR Part 173, the CASR Dictionary, MOS Part 173 and MOS Part 139 This NFRM is now available. 12 Apr 2012
Consultation updates in 2011
Proposed amendments to MOS Part 173 Comments closed on: 9 March 2011. 9 Feb 2011
Proposed changes to CASR Part 139, CASR Part 173, CASR Dictionary and Part 173 MOS - Terminal instrument flight procedures Comments closed on: 9 March 2011. 9 Feb 2011
Project AS 10/24 - Clarifying terms used in relation to Terminal Instrument Flight Procedures Project title change. 14 Jan 2011
Consultation updates in 2010
Project AS 10/24 - Terminology amendment and review of Terminal Instrument Flight Procedure withdrawal protocol - Manual of Standards Part 173 - Standards applicable to Instrument Flight Procedure Design Project approved. 2 Dec 2010