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 UK CAA has issued AD 005-12-93 affecting British Aerospace Jetstream 4100 series aeroplanes. The United Kingdom is the State of Design for this type. CASA has assessed this AD and has issued Australian AD/J4100/3, which will become effective on 20 February 2008.
As this AD is issued because of Australia’s obligations under Convention on International Civil Aviation, and because it is issued in response to an AD raised by the relevant State of Design, no consultation of the Australian public has taken place on this AD. 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 legal framework for the regulation of civil aviation in Australia, ensuring the safety and efficiency of air navigation. The Act empowers the Governor-General to make regulations for the interests of air navigation safety, including the issuance of airworthiness directives (ADs) through the Civil Aviation Safety Regulations 1998. ADs are critical tools for maintaining the continuing airworthiness of aircraft, aligning with international standards set by the Convention on International Civil Aviation. The Civil Aviation Safety Authority (CASA) plays a pivotal role in assessing and issuing these directives when required by the State of Design, thereby fulfilling Australia’s obligations under international conventions and ensuring compliance with domestic safety standards. The legislative process for issuing ADs, such as AD/J4100/3 issued in response to a UK AD for British Aerospace Jetstream 4100 series aeroplanes, does not involve public consultation as it pertains to Australia’s international commitments and is mandated by the State of Design.
Scope and Application
The Civil Aviation Act 1988, as supplemented by the Civil Aviation Safety Regulations 1998, establishes the framework within which airworthiness directives (ADs) are issued to ensure the safety of air navigation in Australia. Under this legislative structure, the Civil Aviation Safety Authority (CASA) has the authority to issue ADs for specific types of aircraft or aeronautical products, as stipulated in regulation 39.001 of the Civil Aviation Safety Regulations 1998. These ADs, being legislative instruments, are subject to disallowance and must comply with the requirements of the Legislative Instruments Act 2003. The issuing of ADs is grounded in international obligations under Annex 8 to the Convention on International Civil Aviation, which assigns the State of Design the responsibility for the continuing airworthiness of an aircraft type, while the State of Registry is tasked with ensuring the continuing airworthiness of individual aircraft. Consequently, when a State of Design issues an AD, CASA, as Australia’s national airworthiness authority, is mandated to evaluate and, if deemed necessary, issue a corresponding Australian AD to enforce the requirements of the original AD. This ensures that Australian-registered aircraft meet the necessary safety standards.
Key Provisions
The Civil Aviation Act 1988 (section 98) empowers the Governor-General to enact regulations for the safety of air navigation, while the Civil Aviation Safety Regulations 1998 (section 39.001) allow the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific aircraft or aeronautical products. These ADs are legislative instruments under the Legislative Instruments Act 2003 (section 6). An airworthiness directive issued by CASA, such as AD/J4100/3, is designed to ensure the continuing airworthiness of aircraft registered in Australia, aligning with the State of Design's responsibilities as per Annex 8 of the Convention on International Civil Aviation.
These airworthiness directives impose obligations on the State of Design, requiring them to provide necessary information to ensure the airworthiness of aircraft types. For Australia, CASA must assess such information and issue appropriate ADs if necessary. The State of Registry, which in this case is Australia, must develop or adopt requirements to ensure the continuing airworthiness of aircraft, and CASA’s role is to implement these requirements through the issuance of ADs. For instance, CASA has issued AD/J4100/3 following the UK's AD 005-12-93 concerning the British Aerospace Jetstream 4100 series aeroplanes, reflecting Australia's obligations under the Convention on International Civil Aviation.
Failure to comply with the airworthiness directives can lead to significant legal consequences. Under the Civil Aviation Act 1988, non-compliance with an AD can result in civil penalties. For example, section 84D of the Act stipulates that operating an aircraft that does not meet the AD requirements can incur a penalty of up to $22,200 per flight for a small aircraft, with higher penalties for larger aircraft. Additionally, CASA can take enforcement actions, including grounding the aircraft, which can severely disrupt operations and incur further financial penalties. Civil Aviation Orders (CAOs) may also specify additional penalties or compliance requirements for specific types of aircraft or aeronautical products, further enforcing adherence to the ADs.
In summary, airworthiness directives issued by CASA under the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 play a crucial role in maintaining the safety and airworthiness of aircraft registered in Australia. These directives mandate specific actions and requirements, with non-compliance potentially leading to significant civil penalties and enforcement actions by CASA.