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/DHA-3/7 affecting De Havilland DHA-3 (Drover) model aeroplanes. CASA has assessed this AD and as a result has cancelled Australian AD/DHA-3/7. The cancellation will become effective on 20 November 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, Airframe and Structures, in the Airworthiness Engineering Group, 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. It empowers the Governor-General to create regulations that safeguard air navigation, including the issuance of airworthiness directives (ADs) as per regulation 39.001 of the Civil Aviation Safety Regulations 1998. ADs serve as a crucial mechanism for maintaining the airworthiness of aircraft and aeronautical products, aligning with international standards set by Annex 8 to the Convention on International Civil Aviation. The Civil Aviation Safety Authority (CASA) acts as the national airworthiness authority, responsible for issuing these directives when necessary to address unsafe conditions. Recently, CASA cancelled the Australian AD/DHA-3/7 for De Havilland DHA-3 (Drover) aeroplanes due to the resolution of the unsafe condition, effective from 20 November 2008, without the need for a replacement directive. The cancellation aligns with Australia's obligations under the Convention and did not necessitate public consultation or a Regulatory Impact Statement.
Scope and Application
The Civil Aviation Act 1988, along with the Civil Aviation Safety Regulations 1998, encompasses a broad framework for ensuring the safety of air navigation and the continuing airworthiness of aircraft within Australia. The Act authorises the Governor-General to issue regulations that pertain to the safety of air navigation, and within this framework, regulation 39.001 specifically empowers the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for certain kinds of aircraft or aeronautical products. These ADs are legislative instruments that are subject to disallowance and scrutiny under the Acts Interpretation Act 1901 and the Legislative Instruments Act 2003. The application of these regulations extends to all aircraft registered in Australia, with CASA acting as the national airworthiness authority responsible for ensuring that each aircraft meets the necessary safety standards. ADs are a crucial component in this process, as they provide essential information for maintaining the continuing airworthiness of aircraft types, mandated by international agreements such as Annex 8 to the Convention on International Civil Aviation. Consequently, when an AD is issued by a State of Design, CASA must evaluate the information and, if deemed necessary, issue a corresponding Australian AD to enforce the required safety measures. This regulatory process ensures that Australian aviation standards align with international obligations, while also safeguarding the safety of air navigation within the country's jurisdiction.
Key Provisions
The Civil Aviation Act 1988, through section 98, allows the Governor-General to make regulations to ensure the safety of air navigation. This includes the ability to issue airworthiness directives (ADs) which are specified in regulation 39.001 of the Civil Aviation Safety Regulations 1998. These ADs are binding instruments that pertain to certain kinds of aircraft or aeronautical products, and are legislative instruments as per subregulation 39.001(5) and section 46A of the Acts Interpretation Act 1901. In accordance with Annex 8 of the Convention on International Civil Aviation, the State of Design is responsible for the continuing airworthiness of an aircraft type and must provide necessary information to the States of Registry to ensure ongoing airworthiness. The State of Registry, which in Australia is CASA, must implement or adopt measures to ensure the airworthiness of the aircraft on its register.
Under the Civil Aviation Safety Regulations 1998, CASA has the authority to issue ADs, which can be directed at specific aircraft types or aeronautical products. This authority is exercised to comply with international obligations, such as those outlined in Annex 8 of the Convention on International Civil Aviation. Specifically, when an AD is issued by the State of Design, CASA is required to assess this information and, if necessary, issue an Australian AD to enforce the requirements of the State of Design. For example, AD/DHA-3/7, which was issued for De Havilland DHA-3 (Drover) model aeroplanes, was assessed and subsequently cancelled by CASA due to the resolution of the unsafe condition it addressed. The cancellation of this AD took effect on 20 November 2008, and no replacement AD was required as the unsafe condition no longer existed.
The obligations imposed by the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 include ensuring that CASA, as the national airworthiness authority, assesses and implements necessary ADs to maintain the safety of aircraft. This process involves reviewing ADs issued by the State of Design, determining their relevance to aircraft on the Australian register, and issuing corresponding ADs where required. This ensures that all aircraft registered in Australia meet the necessary safety standards. CASA's role also includes the responsibility of cancelling ADs when the unsafe conditions they address are no longer present, as was the case with AD/DHA-3/7.
Breaches of the requirements set out in the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 can result in significant consequences. While the specific offences and penalties are not detailed in the text, it is clear that non-compliance with ADs could lead to serious safety issues, potentially resulting in civil or criminal penalties. The authority to make ADs is a legislative instrument and any failure to comply with these directives could be considered a breach of statutory requirements, with potential consequences including fines, imprisonment, or both, depending on the severity of the breach and the specific provisions of the legislation. The text does not provide explicit details on the maximum penalties, but such breaches would likely be subject to the general penalties outlined under the Civil Aviation Act 1988.