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 320/4, affecting Cessna 320 model aircraft in 1968. CASA has reviewed this AD and as a result has decided to cancel it. The cancellation will become effective on 5 June 2008. No replacement AD is required as AD/GENERAL/74 Amendment 1 now addresses the unsafe condition.
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, Airframes 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 ensure the safety and efficiency of civil aviation in Australia. The Act provides the legislative framework within which the Civil Aviation Safety Authority (CASA) operates to regulate and oversee the safety of aviation activities in Australia. One of the key mechanisms within this framework is the issuance of airworthiness directives (ADs) to ensure the continuing airworthiness of aircraft. The Civil Aviation Safety Regulations 1998 further elaborate on the regulatory process, including the issuance of ADs by CASA. These directives are essential for maintaining safety standards in compliance with international conventions, particularly Annex 8 to the Convention on International Civil Aviation, which outlines the responsibilities of States of Design and Registry in ensuring aircraft airworthiness. The ADs serve as a crucial tool for addressing specific safety issues identified with particular aircraft types or aeronautical products. CASA’s role in issuing and monitoring these directives ensures that Australian aviation remains safe and compliant with international standards.
Scope and Application
The Civil Aviation Safety Regulations 1998, under the Civil Aviation Act 1988, empowers the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specified types of aircraft or aeronautical products. These directives are legislative instruments that mandate requirements for the continuing airworthiness of aircraft registered in Australia, ensuring compliance with international standards set forth in Annex 8 to the Convention on International Civil Aviation. The State of Design, which is responsible for the initial airworthiness of an aircraft type, issues ADs that must be assessed and, if necessary, adopted by the State of Registry. In the case of Australia, CASA, as the national airworthiness authority, performs this role. The ADs serve as a critical tool for maintaining safety standards and are issued to address identified unsafe conditions. The specific AD/CESSNA 320/4, which was issued for Cessna 320 model aircraft from 1968, has been cancelled by CASA effective 5 June 2008, as the conditions it addressed are now covered by AD/GENERAL/74 Amendment 1. This cancellation, which reduces the regulatory burden, did not require public consultation or a Regulatory Impact Statement. The AD was made by the Manager, Airframes in the Airworthiness Engineering Branch, on behalf of CASA, in line with the Act’s provisions.
Key Provisions
The main operative sections of the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 establish a framework for ensuring the safety of air navigation. Section 98 of the Act allows the Governor-General to make regulations that serve the interests of air navigation safety. Regulation 39.001 of the Regulations empowers the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products. The ADs are considered disallowable instruments under section 46A of the Acts Interpretation Act 1901, and thus, legislative instruments under section 6 of the Legislative Instruments Act 2003.
The obligations and requirements imposed by these sections necessitate that CASA, as Australia's national airworthiness authority, must assess any airworthiness information provided by the State of Design and, if appropriate, issue an Australian AD. This ensures compliance with international standards set by Annex 8 to the Convention on International Civil Aviation. The State of Registry of an aircraft, in this case CASA, is responsible for the continuing airworthiness of the aircraft registered in Australia. This includes ensuring that the aircraft meets all mandated requirements and standards set forth in the ADs issued by the State of Design.
The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 also detail the consequences for breaches of these requirements. Although the specific offences, penalties, or consequences are not explicitly stated in the provided text, it is understood that non-compliance with ADs could result in serious safety risks, leading to potential enforcement actions by CASA. The text indicates that AD/CESSNA 320/4 was cancelled because it was deemed unnecessary due to a more comprehensive AD already in place, thus reducing the regulatory burden. However, failure to comply with the issued ADs could potentially lead to aircraft being deemed unairworthy, which would result in severe consequences, including grounding of the aircraft and possible legal action against the aircraft operator or owner.