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-SNOW/1 affecting all models of Ayres Thrush (SNOW) commander series aeroplanes. CASA has assessed this AD and as a result has cancelled Australian AD/AC-SNOW/1. The cancellation will become effective on 28 August 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 was enacted to provide a framework for the regulation of civil aviation in Australia, with a primary focus on ensuring the safety of air navigation. The Act empowers the Governor-General to make regulations that are integral to maintaining the safety of air navigation, as outlined in section 98. Under this authority, the Civil Aviation Safety Regulations 1998 were developed, which include provisions for the issuance of airworthiness directives (ADs) by the Civil Aviation Safety Authority (CASA). These ADs serve as a crucial mechanism for ensuring the continuing airworthiness of aircraft types registered in Australia, aligning with international standards set by the Convention on International Civil Aviation. The Civil Aviation Act 1988 and the subsequent regulations were established to address the need for robust and consistent safety measures in civil aviation, thereby safeguarding public safety and compliance with international obligations.
Scope and Application
The Civil Aviation Safety Regulations 1998, under the Civil Aviation Act 1988, empower the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific kinds of aircraft or aeronautical products. This regulatory framework is designed to ensure the continuing airworthiness of aircraft and aeronautical products, aligning with Australia's obligations under the Convention on International Civil Aviation. The ADs, which are considered legislative instruments, mandate safety requirements based on assessments conducted by CASA. In instances where a State of Design issues an AD for a type of aircraft on the Australian Register, CASA must review and, if necessary, issue an Australian AD to enforce the requirements. The issuance and cancellation of ADs, such as the recent cancellation of AD/AC-SNOW/1 for all models of Ayres Thrush (SNOW) commander series aeroplanes, are critical actions taken by CASA to maintain safety standards. These directives are made in accordance with relevant sections of the Act and do not typically require public consultation or a Regulatory Impact Statement.
Key Provisions
The Civil Aviation Act 1988, under section 98, empowers the Governor-General to create regulations for the safety of air navigation. Specifically, regulation 39.001 of the Civil Aviation Safety Regulations 1998 grants the Civil Aviation Safety Authority (CASA) the authority to issue airworthiness directives (ADs) for types of aircraft or aeronautical products. This regulatory framework ensures that the safety standards for aviation are consistently upheld across Australia. Section 39.001(5) further clarifies that an AD is a disallowable instrument, subject to the Acts Interpretation Act 1901, and therefore constitutes a legislative instrument under the Legislative Instruments Act 2003.
The obligations imposed by this legislation are significant. The State of Design, which is responsible for the aircraft type, must provide necessary information to ensure its continuing airworthiness. This aligns with Annex 8 of the Convention on International Civil Aviation, which mandates that the State of Design must furnish any relevant information to appropriate States of Registry. Similarly, the State of Registry, in this case, CASA, must ensure that the aircraft remains airworthy by assessing and, if necessary, issuing corresponding Australian ADs. These directives are critical in maintaining safety standards and ensuring that all aircraft are maintained in a condition fit for flight.
Failure to comply with the requirements of the ADs can lead to serious consequences. Section 145 of the Civil Aviation Act 1988 outlines the civil and criminal penalties for non-compliance. Civil penalties can include fines up to the maximum prescribed by the Act, while criminal penalties can result in imprisonment for up to two years. These stringent measures underscore the importance of adhering to ADs and highlight the severe repercussions for non-compliance. CASA has the authority to enforce these penalties, ensuring that all parties involved in civil aviation comply with the necessary safety regulations.
In summary, the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 establish a robust framework for the issuance and enforcement of airworthiness directives. These regulations ensure that both the State of Design and the State of Registry fulfill their obligations to maintain the safety and airworthiness of aircraft. The penalties for non-compliance are severe, reflecting the critical nature of aviation safety and the importance of adhering to the directives issued by CASA.