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.
CASA issued AD/CESSNA 550/3 affecting Cessna 550 (Citation II) series aeroplanes in 1982. CASA has reviewed this AD and as a result has decided to cancel it. The cancellation will become effective on 19 November 2009. No replacement AD is required, as the original unsafe condition no longer exists.
No consultation with the Australian public has taken place on this AD cancellation, because the cancellation results in a reduction of the regulatory burden. The Office of Best Practice Regulation has determined that ADs do not require a Regulatory Impact Statement.
The AD has been made by the Manager Initial Airworthiness in the Airworthiness and Engineering Branch, on behalf of CASA, in accordance with subsection 84A (2) of the Act.
Overview
The Civil Aviation Act 1988, enacted by the Commonwealth Parliament, governs the regulation of civil aviation in Australia to ensure safety and efficiency in air navigation. In conjunction with this Act, the Civil Aviation Safety Regulations 1998 outline the specific procedures and requirements for maintaining airworthiness of aircraft. These regulations empower the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) to address safety issues related to aircraft types or aeronautical products. The issuance of ADs is crucial for ensuring the continuing airworthiness of aircraft as mandated by international conventions such as Annex 8 to the Convention on International Civil Aviation. This legislative framework enables CASA to mandate necessary safety measures when unsafe conditions are identified, thereby safeguarding the public and promoting safe air travel within Australia. The process of issuing ADs is designed to be efficient, with the authority to cancel existing directives when conditions no longer warrant their existence, thereby reducing unnecessary regulatory burdens.
Scope and Application
The Civil Aviation Act 1988, in conjunction with the Civil Aviation Safety Regulations 1998, governs the issuance of airworthiness directives (ADs) for aircraft and aeronautical products in Australia. The Act applies to the Civil Aviation Safety Authority (CASA), which is the national airworthiness authority responsible for ensuring the continuing airworthiness of aircraft registered in Australia. The ADs, which are legislative instruments under the Acts Interpretation Act 1901 and the Legislative Instruments Act 2003, are issued to mandate safety requirements identified by the State of Design or, in the Australian context, CASA. These directives apply to specific types or series of aircraft, such as the Cessna 550 (Citation II) aeroplanes, and are intended to address unsafe conditions or deficiencies that could impact air safety. CASA’s authority to issue ADs is derived from Annex 8 to the Convention on International Civil Aviation, which places responsibility for the continuing airworthiness of aircraft types with the State of Design and mandates that States of Registry implement necessary measures to maintain airworthiness. The issuance, review, and cancellation of ADs, such as the recent cancellation of AD/CESSNA 550/3, are managed by CASA to ensure compliance with international standards and to reduce regulatory burden where appropriate, with no requirement for public consultation or a Regulatory Impact Statement in certain circumstances.
Key Provisions
The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 provide the legislative framework for the issuance of airworthiness directives (ADs) in Australia, which are critical for ensuring the ongoing safety of aircraft. According to section 98 of the Civil Aviation Act 1988, the Governor-General can enact regulations to maintain the safety of air navigation, and regulation 39.001 of the Civil Aviation Safety Regulations 1998 specifically authorises the Civil Aviation Safety Authority (CASA) to issue ADs for certain kinds of aircraft or aeronautical products. This is further clarified by subregulation 39.001(5) which states that an AD is a disallowable instrument under section 46A of the Acts Interpretation Act 1901, making it a legislative instrument. The issuance of ADs aligns with the responsibilities of the State of Design and the State of Registry as outlined in Annex 8 to the Convention on International Civil Aviation, where the State of Design must provide necessary information for the continuing airworthiness of an aircraft type, and the State of Registry must implement requirements to maintain airworthiness.
Under these regulations, CASA, as Australia's national airworthiness authority, is tasked with assessing ADs issued by the State of Design and determining whether to issue corresponding ADs in Australia. For example, CASA issued AD/CESSNA 550/3 in 1982 for Cessna 550 (Citation II) series aeroplanes, but has since reviewed and decided to cancel this AD. The cancellation, effective from 19 November 2009, reflects that the original unsafe condition no longer exists, thus no replacement AD is necessary. This decision was made without public consultation as it reduces the regulatory burden, and the Office of Best Practice Regulation has determined that ADs do not require a Regulatory Impact Statement. The Manager of Initial Airworthiness in CASA’s Airworthiness and Engineering Branch made this AD cancellation in accordance with subsection 84A(2) of the Civil Aviation Act 1988.
In terms of obligations, CASA must ensure that any ADs issued comply with the safety requirements set forth in the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998. Failure to comply with these regulations or the terms of an AD can result in significant consequences. For instance, breaching the requirements of an AD can lead to enforcement actions under the Civil Aviation Act 1988, including fines or other penalties. The severity of the penalties can depend on the nature and extent of the non-compliance. Furthermore, continued operation of an aircraft that does not meet the standards set by an AD may result in the aircraft being deemed unairworthy, which could lead to further legal and safety repercussions. It is therefore imperative that all stakeholders, including aircraft operators and owners, adhere to the directives issued by CASA to maintain the highest standards of aviation safety.