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/PA-31/18 affecting Piper PA-31 model aircraft in 1971. CASA has reviewed this AD and as a result has decided to cancel it. The cancellation will become effective on 17 January 2008. No replacement AD is required, as the original unsafe condition is now addressed by AD/GENERAL/74 Amendment 1.
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 provide a comprehensive legal framework for the regulation of civil aviation in Australia, with a primary focus on safety and efficiency. The Civil Aviation Safety Regulations 1998, made under section 98 of the Act, outline the requirements for ensuring the safety of air navigation, including the issuance of airworthiness directives (ADs) by the Civil Aviation Safety Authority (CASA). These ADs are legislative instruments designed to maintain the continuing airworthiness of aircraft. As part of its regulatory duties, CASA issued an airworthiness directive for the Piper PA-31 model aircraft in 1971, which has now been reviewed and is set to be cancelled, effective from 17 January 2008. The cancellation of this directive, which will not be replaced as the issue it addressed is now covered by another directive, was made without public consultation due to the reduction in regulatory burden, and it has been determined that no Regulatory Impact Statement is required. This action is taken under the authority granted to CASA by subsection 84A(2) of the Act.
Scope and Application
The Civil Aviation Act 1988, supplemented by the Civil Aviation Safety Regulations 1998, provides the legislative framework for the issuance of airworthiness directives (ADs) in Australia. Under this framework, the Civil Aviation Safety Authority (CASA) is empowered to issue ADs for specific types of aircraft or aeronautical products to ensure the safety of air navigation. These directives are a form of legislative instrument, subject to disallowance and oversight under the Acts Interpretation Act 1901 and the Legislative Instruments Act 2003. The ADs are intended to mandate requirements for the continuing airworthiness of aircraft registered in Australia, aligning with international standards set forth by the International Civil Aviation Organization (ICAO). This regulatory process involves CASA assessing information from the State of Design and, if necessary, issuing corresponding ADs to ensure compliance with safety standards. For instance, CASA issued and subsequently cancelled AD/PA-31/18 for Piper PA-31 model aircraft, reflecting the dynamic nature of airworthiness regulations. The cancellation of this directive, which took effect on 17 January 2008, was based on the resolution of the original safety concern through another directive, AD/GENERAL/74 Amendment 1, without the need for a replacement AD. The legislative process for such actions is overseen by the Manager, Airframes in the Airworthiness Engineering Branch, on behalf of CASA, in accordance with the Civil Aviation Act 1988.
Key Provisions
The key provisions of the Civil Aviation Act 1988, as implemented through the Civil Aviation Safety Regulations 1998, outline the mechanisms for issuing airworthiness directives (ADs) for aircraft and aeronautical products. Under section 98 of the Civil Aviation Act 1988, the Governor-General is empowered to make regulations aimed at ensuring the safety of air navigation. Regulation 39.001 of the Civil Aviation Safety Regulations 1998 specifically authorises CASA to issue ADs for certain types of aircraft or aeronautical products. This regulation is significant as it ensures that any identified issues with aircraft safety can be addressed in a systematic and timely manner. Subregulation 39.001(5) further clarifies that ADs are legislative instruments, subject to disallowance under the Acts Interpretation Act 1901, and formalised as such under the Legislative Instruments Act 2003.
The obligations and requirements imposed by the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 are multifaceted. The State of Design holds primary responsibility for the continuing airworthiness of an aircraft type, as stipulated in Annex 8 to the Convention on International Civil Aviation. This includes providing necessary information to ensure the aircraft's airworthiness to the States of Registry. The State of Registry, on the other hand, must develop or adopt requirements to maintain the continuing airworthiness of aircraft registered within its jurisdiction. For Australia, CASA acts as the national airworthiness authority and must assess information provided by the State of Design, issuing Australian ADs when necessary to mandate the required safety measures. This collaborative approach ensures that all stakeholders are aligned in their efforts to maintain high safety standards.
Failure to comply with the provisions of the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 can result in significant consequences. While specific offences and penalties are not detailed in the provided text, it is reasonable to infer that breaches of airworthiness directives could lead to enforcement actions, including fines and other regulatory penalties. The seriousness of these consequences underscores the importance of adhering to the safety requirements set forth in the legislation. The regulatory framework is designed to protect public safety and ensure that aircraft remain in a safe and airworthy condition at all times.