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/LA-4/6 affecting LA-4 model aircraft in 1972. 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, enacted by the Australian Parliament, aims to ensure the safety and efficiency of civil aviation within Australia. One of its provisions allows the Governor-General to make regulations for the purposes of the Act, with a focus on the safety of air navigation. Specifically, under regulation 39.001 of the Civil Aviation Safety Regulations 1998, the Civil Aviation Safety Authority (CASA) is empowered to issue airworthiness directives (ADs) for types of aircraft or aeronautical products. These ADs are legislative instruments that mandate safety requirements for aircraft, ensuring they meet the necessary standards for continuing airworthiness. The Civil Aviation Act 1988 thus establishes a framework for maintaining high safety standards in the aviation sector, aligning with international obligations under ICAO conventions.
Scope and Application
The Civil Aviation Safety Regulations 1998, under the authority granted by section 98 of the Civil Aviation Act 1988, empower the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) concerning specific types of aircraft or aeronautical products. These directives, as detailed in regulation 39.001 of the Civil Aviation Safety Regulations 1998, are legislative instruments subject to disallowance under the Acts Interpretation Act 1901 and are regulated as such under the Legislative Instruments Act 2003. This regulatory framework ensures that CASA can mandate safety requirements in line with international standards set by the International Civil Aviation Organization (ICAO). The ADs serve to maintain the continuing airworthiness of aircraft as per Annex 8 to the Convention on International Civil Aviation, with the State of Design responsible for providing necessary information and the State of Registry tasked with implementing the requirements. In the case of Australian-registered aircraft, CASA assesses information from the State of Design and may issue corresponding ADs to enforce these safety mandates. The recent decision to cancel AD/LA-4/6 affecting LA-4 model aircraft, which will take effect on 17 January 2008, reflects CASA's ongoing efforts to streamline and update safety regulations, supported by the determination that such a cancellation reduces regulatory burden and does not necessitate a Regulatory Impact Statement.
Key Provisions
The Civil Aviation Act 1988, specifically section 98, provides the framework under which the Governor-General can issue regulations that ensure the safety of air navigation. This authority is exercised through the Civil Aviation Safety Regulations 1998, where regulation 39.001 allows the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products. An AD is a legislative instrument, as stated in subregulation 39.001(5) and further clarified under the Legislative Instruments Act 2003.
Under the Civil Aviation Safety Regulations 1998, the primary obligation imposed on CASA is to assess and potentially issue ADs to ensure the continuing airworthiness of aircraft registered in Australia. This involves reviewing information provided by the State of Design and ensuring that Australian ADs align with international standards as outlined in Annex 8 of the Convention on International Civil Aviation. Additionally, CASA must act when an AD is issued by the State of Design and determine whether an Australian AD is necessary to maintain safety standards.
Failure to comply with ADs can lead to serious consequences. Civil Aviation Act 1988 imposes obligations on aircraft operators to adhere to ADs, and non-compliance can result in penalties. The Act includes provisions for both civil and criminal penalties, although specific maximum penalties are not detailed within the text provided. It is essential that aircraft operators ensure that their aircraft meet the standards set out in any applicable ADs to avoid any potential legal ramifications.
In the specific case of AD/LA-4/6, which was issued in 1972, CASA has determined that the AD should be cancelled effective 17 January 2008. This cancellation was made due to the resolution of the original unsafe condition addressed by a subsequent AD, AD/GENERAL/74 Amendment 1. The decision to cancel this AD was made without public consultation, as it reduces the regulatory burden, and the Office of Best Practice Regulation has confirmed that a Regulatory Impact Statement is not required. The AD cancellation was authorised by the Manager, Airframes in the Airworthiness Engineering Branch, acting under subsection 84A(2) of the Act.