Federal Register of Legislation - Australian Government

Primary content

AD/AL 250/66 Amdt 3 Second Stage Turbine Wheel

Authoritative Version
AD/AL 250/66 Amdt 3 Airworthiness Directives as made
This instrument removes obsolete references and makes minor editorial changes to reflect current requirements.
Administered by: Infrastructure, Transport, Regional Development and Communications
Exempt from sunsetting by the Legislation (Exemptions and Other Matters) Regulation 2015 s12 item 15
Registered 06 Oct 2021
Tabling HistoryDate
Tabled HR18-Oct-2021
Tabled Senate18-Oct-2021

Explanatory Statement

Civil Aviation Safety Regulations 1998

AD/AL 250/66 Amdt 3 - Second Stage Turbine Wheel

Legislation

Under section 98 of the Civil Aviation Act 1988 (the Act), the Governor-General may make regulations for the purpose of carrying out and giving effect to the provisions of the Convention on International Civil Aviation relating to safety, amongst other things. Under regulation 39.001 of the Civil Aviation Safety Regulations 1998 (CASR), the Civil Aviation Safety Authority (CASA) may issue an airworthiness directive (AD) for a kind of aircraft or aeronautical product. Under subsections 98 (5B) and (5BA) of the Act, an AD is a legislative instrument unless it is expressed to apply in relation to a particular person, a particular aircraft or a particular aeronautical product.

Subsection 98 (5D) of the Act provides that a legislative instrument made under the Act or the regulations may apply, adopt or incorporate any matter contained in any instrument or other writing as in force or existing from time to time, even if the other instrument or writing does not yet exist when the legislative instrument is made.

Under subsection 33 (3) of the Acts Interpretation Act 1901, where an Act confers a power to make, grant or issue any instrument of a legislative or administrative character (including rules, regulations or by-laws), the power shall be construed as including a power exercisable in the like manner and subject to the like conditions (if any) to repeal, rescind, revoke, amend, or vary any such instrument.

Under Annex 8 to the Convention on International Civil Aviation, the State of Design has overall responsibility for continuing airworthiness of an aircraft type, and must provide any information necessary to ensure the continuing airworthiness of a type to appropriate States of Registry. ADs (and their equivalents) are the most common form of continuing airworthiness information, and are issued by most International Civil Aviation Organization Contracting States.

The State of Registry of an individual aircraft is responsible for its continuing airworthiness. Under Annex 8, the State of Registry must develop or adopt requirements to ensure the continuing airworthiness of aircraft. When a foreign State of Design issued an AD before 1 October 2009 for a type of aircraft on the Australian Register, CASA, as Australia’s national airworthiness authority, must assess that information and, if appropriate, issue an Australian AD to mandate the requirements of the foreign State of Design. AD/AL 250/64 Amdt 4 applies to Rolls Royce (formerly Allison) 250 series engines.

The United States of America Federal Aviation Administration (FAA) issued AD 86‑19-12 affecting Rolls Royce (formerly Allison) 250 series engines in 1986. The United States of America is the State of Design for this engine type. CASA subsequently issued AD/AL 250/66 Amdt 2 to mandate the requirements of FAA AD 86-19-12. As a result of an internal review, CASA has issued AD/AL 250/66 Amdt 3 to remove references to legislative instruments no longer in force under the Civil Aviation Regulations 1988. This AD repeals and replaces the previous AD on this subject.

Documents Incorporated by Reference

Rolls Royce (Allison) Alert Service Bulletins (ASBs) CEB-A-72-3132 and CEB‑A‑72-3137 Rev.2, provide instructions for replacement of the second stage turbine wheel with an improved part, with significantly higher burst speed than the superseded second stage turbine wheel. For subsection 98 (5D) of the Act, the technical documents are incorporated as they exist on the date of commencement of the AD. The technical documents are not freely available.

 

The technical documents incorporated into this AD, which are not freely available, are proprietary, copyright, fee-for-service documents, prepared on a commercial basis. They can be purchased from the aircraft or component manufacturer by subscription.

As a matter of practicality, it would not be possible for aircraft operators to operate aircraft in Australian and foreign airspace without having their own subscription access to relevant technical documents of the aircraft or engine manufacturer. Nevertheless, as a current subscriber for the documents, CASA will make the relevant sections of the incorporated technical documents available, in its Canberra or regional offices, by arrangement, and, in keeping with the proprietary nature of the documents, for viewing only, to any aircraft operator who is affected by the instrument, or to any interested person.

The Federal Aviation Administration AD 86-19-12 is mentioned in the AD but not incorporated by reference in it. It is freely available from the Federal Aviation Administration website at the following internet address: FAA AD 86-19-12 (faa.gov)

CASA AD/AL 250/64 Amdt 4 is also mentioned in the AD but not incorporated by reference in it. It is freely available on www.legislation.gov.au.

Consultation

This AD is being made as a result of an internal CASA review to remove references to legislative instruments no longer in force under the Civil Aviation Regulations 1988. As this AD amendment is of a minor or machinery nature and does not substantially alter existing arrangements apart from updating references to reflect current requirements, it is CASA’s view that it was not necessary or appropriate to undertake any further consultation under section 17 of the Legislation Act 2003.

Regulation Impact Statement

A Regulation Impact Statement (RIS) is not required because ADs are covered by a standing agreement between CASA and the Office of Best Practice Regulation under which a RIS is not required for ADs (OBPR id. 14507).

Statement of Compatibility with Human Rights

A Statement of Compatibility with Human Rights is at Attachment 1.

 

Making and commencement

The instrument has been made by a delegate of CASA relying on the power of delegation under subregulation 11.260 (1) of CASR and subsection 94 (1) of the Act.

As an instrument relating to aviation safety made under CASR, Part 4 of Chapter 3 of the Legislation Act 2003 (sunsetting of legislative instruments) does not apply to this instrument (item 15 of the table in section 12 of the Legislation (Exemptions and Other Matters) Regulation 2015). The instrument requires that the action set out in the instrument, that relates to aircraft or aeronautical products, be taken to correct an unsafe condition. As such, the instrument is intended to have enduring operation and it would not be appropriate for it to be subject to sunsetting.

The instrument commences on 8 October 2021.

[Instrument number AD/AL 250/66 Amdt 3]


 

Attachment 1

Statement of Compatibility with Human Rights

Prepared in accordance with Part 3 of the
Human Rights (Parliamentary Scrutiny) Act 2011

AD/AL 250/66 Amdt 3 - Second Stage Turbine Wheel

This legislative instrument is compatible with the human rights and freedoms recognised or declared in the international instruments listed in section 3 of the Human Rights (Parliamentary Scrutiny) Act 2011.

Overview of the legislative instrument

The United States of America Federal Aviation Administration (FAA) issued AD 86‑19-12 affecting Rolls Royce (formerly Allison) 250 series engines in 1986. The United States of America is the State of Design for this engine type. CASA subsequently issued AD/AL 250/66 Amdt 2 to mandate the requirements of FAA AD 86-19-12. As a result of an internal review, CASA has issued AD/AL 250/66 Amdt 3 to remove references to legislative instruments no longer in force under the Civil Aviation Regulations 1988.

The primary purpose of this legislative instrument is to remove obsolete references and make minor editorial changes to reflect current requirements.

Human rights implications

This legislative instrument does not engage any of the applicable rights or freedoms.

Conclusion

This legislative instrument is compatible with human rights as it does not raise any human rights issues.

Civil Aviation Safety Authority