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/AC/44 affecting Twin Aero Commander 680T, 680V and 681 aircraft models. CASA has assessed this AD and as a result has cancelled Australian AD/AC/44. The cancellation will become effective on 31 July 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 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, enacted by the Australian Parliament, aims to ensure the safety of air navigation and regulate civil aviation within Australia. As part of this, the Civil Aviation Safety Regulations 1998 empower the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) under regulation 39.001. These ADs serve as legislative instruments to mandate specific requirements to ensure the continuing airworthiness of aircraft. This mechanism aligns with Australia’s obligations under Annex 8 of the Convention on International Civil Aviation, where the State of Design has the responsibility for the continuing airworthiness of aircraft types, and the State of Registry must ensure individual aircraft meet airworthiness standards. The process includes CASA evaluating ADs issued by other states and issuing corresponding Australian ADs where necessary. The recent cancellation of Australian AD/AC/44 for Twin Aero Commander 680T, 680V, and 681 aircraft models, effective 31 July 2008, exemplifies this regulatory approach, reflecting that the unsafe condition no longer exists and thus negating the need for further ADs.
Scope and Application
The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 provide the framework within which airworthiness directives (ADs) are issued to ensure the safety of air navigation. Under section 98 of the Civil Aviation Act 1988, the Governor-General may make regulations in the interests of air navigation safety, and regulation 39.001 of the Civil Aviation Safety Regulations 1998 allows the Civil Aviation Safety Authority (CASA) to issue ADs for kinds of aircraft or aeronautical products. These ADs are legislative instruments and are subject to disallowance under the Acts Interpretation Act 1901. The ADs serve to maintain the continuing airworthiness of aircraft types, with the State of Design having overall responsibility for providing necessary information, and the State of Registry tasked with implementing the ADs to ensure compliance with safety standards. In this particular case, CASA, as Australia’s national airworthiness authority, has cancelled an existing AD for certain Aero Commander aircraft models due to the resolution of the unsafe condition, in line with Australia’s obligations under the Convention on International Civil Aviation.
Key Provisions
The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 provide the legislative framework for the issuance and management of airworthiness directives (ADs) in Australia. Section 98 of the Act allows the Governor-General to create regulations to ensure the safety of air navigation, and regulation 39.001 specifically empowers the Civil Aviation Safety Authority (CASA) to issue ADs for specific types of aircraft or aeronautical products. Subregulation 39.001(5) further clarifies that ADs are legislative instruments under the Acts Interpretation Act 1901 and are subject to disallowance under section 46A. This means that ADs are formal documents with legal weight, designed to maintain the airworthiness of aircraft and aeronautical products.
Under the Civil Aviation Safety Regulations 1998, CASA has the responsibility to issue airworthiness directives when necessary to ensure the safety of air navigation. When a State of Design issues an AD for a type of aircraft registered in Australia, CASA must assess the information provided and, if appropriate, issue an Australian AD to mandate the requirements. This process ensures that the continuing airworthiness of individual aircraft is maintained in line with international standards and obligations, as outlined in Annex 8 to the Convention on International Civil Aviation. The State of Design holds overall responsibility for the continuing airworthiness of an aircraft type, while the State of Registry, such as Australia in this context, is responsible for ensuring the airworthiness of individual aircraft.
The obligations imposed by the Act and Regulations on CASA include the assessment of any AD issued by a State of Design and the issuance of corresponding Australian ADs if necessary. This ensures that Australian aircraft meet international safety standards. CASA must also ensure compliance with these directives by the relevant stakeholders, such as aircraft operators and owners. The cancellation of an AD, as in the case of AD/AC/44 affecting Twin Aero Commander 680T, 680V, and 681 aircraft models, is also governed by these provisions. When CASA determines that the unsafe condition no longer exists, it has the authority to cancel the AD, as demonstrated by the cancellation of AD/AC/44, which became effective on 31 July 2008.
The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 also outline the potential consequences for non-compliance with ADs. While the specific penalties for breaching ADs are not detailed in the provided text, general aviation regulations typically include provisions for civil penalties for non-compliance. These can range from fines to more severe sanctions, depending on the nature and severity of the breach. Additionally, criminal penalties may apply in cases of gross negligence or wilful disregard of airworthiness requirements, which can lead to substantial fines and imprisonment. It is essential for all parties governed by these regulations to adhere to ADs to ensure the safety of air navigation and avoid legal repercussions.