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/S-76/20 affecting Sikorsky S-76 series Helicopters. CASA has assessed this AD and as a result has cancelled Australian AD/S-76/20. The cancellation will become effective on
2 July 2009. 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, enacted by the Australian Parliament, serves as the foundational legal framework for the regulation of civil aviation in Australia. This Act was introduced to address the need for a comprehensive legislative instrument that ensures the safety and efficiency of civil aviation operations within Australia. One of the key provisions of the Act is the authority it grants to the Governor-General to make regulations that are necessary for the safety of air navigation. Specifically, the Civil Aviation Safety Regulations 1998 empower the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) concerning specific types of aircraft or aeronautical products. These ADs are legislative instruments and are subject to disallowance under the Acts Interpretation Act 1901. The policy objective of the Civil Aviation Act 1988, as reflected in its regulations and the issuance of ADs, is to ensure the continuing airworthiness of aircraft in accordance with international standards set by the Convention on International Civil Aviation.
Scope and Application
The Civil Aviation Act 1988, supplemented by the Civil Aviation Safety Regulations 1998, establishes the framework for the issuance of airworthiness directives (ADs) in Australia, ensuring the safety of air navigation. Under these regulations, the Civil Aviation Safety Authority (CASA) has the authority to issue ADs for specific types of aircraft or aeronautical products. These directives are essential for maintaining the continuing airworthiness of aircraft and are considered legislative instruments under Australian law. The ADs are aligned with the requirements set out in Annex 8 to the Convention on International Civil Aviation, where the State of Design and the State of Registry have defined responsibilities. For aircraft registered in Australia, CASA, as the national airworthiness authority, is tasked with assessing information from the State of Design and issuing Australian ADs as necessary. The process is designed to address any unsafe conditions identified with particular aircraft types, as demonstrated by the issuance and subsequent cancellation of AD/S-76/20 for Sikorsky S-76 series helicopters, which was cancelled due to the resolution of the previously identified unsafe condition.
Key Provisions
The Civil Aviation Act 1988, specifically under section 98, empowers the Governor-General to create regulations that support the Act and prioritise the safety of air navigation. In line with this, regulation 39.001 of the Civil Aviation Safety Regulations 1998 allows the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products. These ADs are a form of legislative instrument, as outlined in subregulation 39.001(5) and under the Acts Interpretation Act 1901. This ensures they comply with legislative scrutiny and requirements.
The obligations of the State of Design, which is the country where the aircraft is designed, under Annex 8 of the Convention on International Civil Aviation, include maintaining the continuing airworthiness of the aircraft type and providing any necessary information to the States of Registry. These States of Registry are responsible for ensuring the individual aircraft’s continuing airworthiness and must establish requirements to meet this responsibility. CASA, as Australia’s national airworthiness authority, is mandated to review any ADs issued by the State of Design and determine whether to issue a corresponding Australian AD, thereby enforcing the design state's requirements on Australian-registered aircraft.
Failure to comply with an AD can result in severe consequences. Aircraft operators and owners who do not adhere to the ADs can face legal penalties. Under the Civil Aviation Act 1988, non-compliance with an AD can lead to civil penalties, including fines up to the statutory maximum of $222,200 for individuals and $1,111,000 for bodies corporate. In addition to civil penalties, CASA can take enforcement actions such as grounding non-compliant aircraft, which can result in significant operational disruptions and financial losses for the operator. The serious implications of non-compliance underscore the importance of adhering to ADs to ensure the safety and airworthiness of aircraft.
Given the international nature of civil aviation, CASA’s role in issuing ADs is critical to ensuring that Australian aviation standards align with international safety requirements. By cancelling Australian AD/S-76/20 for the Sikorsky S-76 series helicopters, CASA has acted in accordance with its obligations under the Convention on International Civil Aviation. The cancellation of this AD, effective from 2 July 2009, reflects the resolution of the unsafe condition previously identified. This action demonstrates CASA’s commitment to maintaining the highest safety standards and ensuring that Australian-registered aircraft meet both national and international regulatory requirements.