CIVIL AVIATION ACT 1988
CIVIL AVIATION SAFETY 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 Civil Aviation Safety Authority or its predecessors issued AD/CESSNA 170/42 affecting Cessna 172 aircraft. CASA has assessed this AD and as a result has cancelled Australian AD/CESSNA 170/42. The cancellation will become effective on 13 March 2008. No replacement AD is required, as the unsafe condition no longer exists.
As this AD has been cancelled because of Australia’s obligations under the Convention on International Civil Aviation, no consultation with the Australian public has taken place on this AD cancellation. The Office of Best Practice Regulation has determined that ADs do not require a Regulatory Impact Statement.
The AD has been made by the Acting Manager, Systems and New Technologies in the Airworthiness Engineering Branch, on behalf of CASA, in accordance with subsection 84A (2) of the Act.
Overview
The Civil Aviation Act 1988 was enacted to provide a framework for the regulation of civil aviation in Australia, ensuring safety and efficiency in air navigation. The Act empowers the Governor-General to make regulations that are integral to maintaining the safety of air navigation, a mandate entrusted to the Civil Aviation Safety Authority (CASA). Regulation 39.001 of the Civil Aviation Safety Regulations 1998 allows CASA to issue airworthiness directives (ADs) for types of aircraft or aeronautical products, thereby ensuring the continuing airworthiness of aircraft within Australia. The Act's policy objective aligns with international standards, particularly those set by the International Civil Aviation Organization (ICAO), under which the State of Design is responsible for the continuing airworthiness of an aircraft type. CASA, as the national airworthiness authority, assesses and implements these directives to mandate safety requirements for aircraft registered in Australia. The legislative framework thus ensures that Australian aviation practices meet both national and international safety standards.
Scope and Application
The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 provide the legal framework for the issuance and management of airworthiness directives (ADs) in Australia. These regulations empower the Civil Aviation Safety Authority (CASA) to issue ADs for specific types of aircraft or aeronautical products, ensuring that the safety standards prescribed by the Act are upheld. Airworthiness directives are legislative instruments that hold significant importance in the maintenance of continuing airworthiness for aircraft registered in Australia, in alignment with international standards set forth in Annex 8 to the Convention on International Civil Aviation. The State of Design has the primary responsibility for the continuing airworthiness of aircraft types and must provide necessary information to States of Registry, including Australia. CASA, as Australia's national airworthiness authority, must evaluate this information and issue corresponding ADs to ensure compliance with international safety requirements. The issuance and cancellation of these directives are made under specific provisions of the Act and are subject to scrutiny to maintain the safety of air navigation. ADs are integral to ensuring that Australian-registered aircraft meet the required safety standards, with CASA having the authority to cancel existing ADs when the unsafe conditions they address are no longer present.
Key Provisions
The Civil Aviation Act 1988, under section 98, grants the Governor-General the authority to create regulations that serve the Act's objectives and enhance the safety of air navigation. Regulation 39.001 of the Civil Aviation Safety Regulations 1998 empowers the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products. These directives are essential tools for maintaining the continuing airworthiness of aircraft, ensuring they meet safety standards throughout their operational life. Subregulation 39.001(5) clarifies that ADs are disallowable instruments under section 46A of the Acts Interpretation Act 1901, making them legislative instruments in their own right.
Under this legislation, both the State of Design and the State of Registry bear significant responsibilities. The State of Design, as outlined in Annex 8 to the Convention on International Civil Aviation, must provide necessary information to ensure the continuing airworthiness of an aircraft type. The State of Registry, on the other hand, is responsible for implementing or adopting requirements to ensure that individual aircraft remain airworthy. In the case of Australia, CASA, acting as the national airworthiness authority, must assess ADs issued by the State of Design and, if necessary, issue corresponding Australian ADs to enforce these requirements.
In line with these provisions, CASA has issued and subsequently cancelled AD/CESSNA 170/42, which affected Cessna 172 aircraft. The cancellation was due to the resolution of the unsafe condition that originally prompted the directive. This cancellation became effective on 13 March 2008, and no replacement AD was required as the unsafe condition no longer existed. Given that the cancellation aligns with Australia’s obligations under the Convention on International Civil Aviation, no public consultation or Regulatory Impact Statement was deemed necessary. The directive was made by the Acting Manager, Systems and New Technologies in the Airworthiness Engineering Branch, on behalf of CASA, under subsection 84A(2) of the Act.
CASA’s issuance and subsequent cancellation of an AD are significant actions that carry legal weight. Failure to comply with an AD can result in serious consequences, including potential grounding of the aircraft, which could lead to substantial financial losses and legal repercussions. The penalties for non-compliance can vary, but they may include fines or imprisonment, depending on the severity of the breach and its impact on aviation safety. Such actions underscore the importance of adhering to ADs to maintain the highest safety standards in aviation.