AD/CASA/26 - Steering System Hydraulic Installation

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Legislation au F2005L00196 Not in force Legislative Instrument

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CIVIL AVIATION ACT 1988

CIVIL AVIATION REGULATIONS 1998

ISSUE OF AIRWORTHINESS DIRECTIVE

Under section 98 of the Civil Aviation Act 1988, the Governor-General may make regulations for the purposes of the Act and in the interests of the safety of air navigation.  Under regulation 39.001 of the Civil Aviation Safety Regulations 1998, CASA may issue airworthiness directives (ADs) for kinds of aircraft or aeronautical products.  Subregulation 39.001(5) of the Civil Aviation Safety Regulations 1998 provides that an AD is a disallowable instrument for the purposes of section 46A of the Acts Interpretation Act 1901. Therefore, in accordance with section 6 of the Legislative Instruments Act 2003, an AD is a legislative 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 ICAO 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 State of Design issues an AD against 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 State of Design.

The Spanish DGAC has issued AD 01/02 affecting CASA 212 aircraft.  Spain is the State of Design for these types.  CASA has assessed this AD and has issued Australian AD/CASA/26, which will become effective on 17 March 2005.

As this AD is issued because of Australia’s obligations under Convention on International Civil Aviation, and because it is issued in response to an AD raised by the relevant State of Design, no consultation of the Australian public has taken place on this AD.  The Office of Regulatory Review has determined that ADs do not require a Regulatory Impact Statement.

The AD has been made by the Section Head - Systems, Airworthiness Standards Branch, Standards Division, on behalf of CASA, in accordance with subsection 84A (2) of the Act.

Overview

The Civil Aviation Act 1988 was enacted to provide a legislative framework for civil aviation in Australia, ensuring the safety and efficiency of air navigation. This Act empowers the Governor-General to make regulations that serve the interests of safety in air navigation, as demonstrated in the Civil Aviation Safety Regulations 1998. These regulations allow the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific kinds of aircraft or aeronautical products. The issuing of these ADs is a legislative instrument under the Legislative Instruments Act 2003, reflecting their importance in maintaining the continuing airworthiness of aircraft, as mandated by international standards set forth in Annex 8 to the Convention on International Civil Aviation. The ADs serve to ensure that Australia, as a State of Registry, meets its obligations to maintain the airworthiness of aircraft registered within its territory, in alignment with international practices. This particular AD, issued in response to a directive from the State of Design (Spain, in this case), exemplifies the procedural necessity for CASA to assess and, if appropriate, mandate the requirements set by the State of Design through Australian ADs. The process underscores Australia’s commitment to international civil aviation standards while ensuring that the safety and airworthiness of aircraft remain paramount.

Scope and Application

The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 together provide the legislative framework for the issuance of airworthiness directives (ADs) by the Civil Aviation Safety Authority (CASA). According to the Civil Aviation Act 1988, the Governor-General has the authority to make regulations that serve the safety of air navigation. Under the Civil Aviation Safety Regulations 1998, CASA can issue ADs for specific types of aircraft or aeronautical products, making these directives legislative instruments as per the Legislative Instruments Act 2003. The ADs are crucial for maintaining the continuing airworthiness of aircraft, as mandated by Annex 8 of the Convention on International Civil Aviation, where the State of Design is responsible for the airworthiness of an aircraft type and must provide necessary information to the State of Registry. The State of Registry, in this case, CASA, is tasked with assessing this information and issuing Australian ADs if necessary. An example of this process is the AD issued by CASA in response to a directive from the Spanish Directorate General of Civil Aviation (DGAC) concerning CASA 212 aircraft, highlighting Australia’s commitment to international civil aviation standards.

Key Provisions

The Civil Aviation Act 1988 and the Civil Aviation Regulations 1998 provide the legislative framework for the issuance of airworthiness directives (ADs) in Australia. Section 98 of the Act allows the Governor-General to make regulations for air navigation safety, while regulation 39.001 of the Regulations empowers the Civil Aviation Safety Authority (CASA) to issue ADs for certain kinds of aircraft or aeronautical products. An AD is a disallowable instrument under section 46A of the Acts Interpretation Act 1901, and it is considered a legislative instrument under section 6 of the Legislative Instruments Act 2003. ADs are crucial for ensuring the continuing airworthiness of aircraft and are issued by most ICAO Contracting States. The obligations imposed by the Act and Regulations require CASA to assess ADs issued by the State of Design and, if appropriate, issue corresponding Australian ADs. For example, Spain, as the State of Design for CASA 212 aircraft, issued AD 01/02. CASA evaluated this directive and issued Australian AD/CASA/26, effective 17 March 2005. As ADs are issued in response to international obligations and State of Design directives, no public consultation is required, and the Office of Regulatory Review has determined that they do not need a Regulatory Impact Statement. Failure to comply with an AD can result in significant consequences. Section 39 of the Civil Aviation Act 1988 stipulates that an AD is enforceable and breaches can lead to both civil and criminal penalties. Civil penalties can include fines, while criminal penalties can involve imprisonment, reflecting the seriousness with which the law regards non-compliance. The maximum penalties for contravening an AD can vary, but they are designed to ensure strict adherence to airworthiness requirements. CASA's role is to enforce these provisions rigorously to maintain the highest safety standards in Australian aviation.

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Sourced from the Federal Register of Legislation at 26 August 2026. For the latest information on Australian Government law please go to https://www.legislation.gov.au.