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-76/22 affecting Sikorsky S-76 series Helicopters. CASA has assessed this AD and as a result has cancelled Australian AD/S-76/22. 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, Systems and New Technologies, in the Airworthiness Engineering Group, on behalf of CASA, in accordance with subsection 84A (2) of the Act.
Overview
The Civil Aviation Act 1988 was enacted to provide a legislative framework for the regulation of civil aviation in Australia, focusing on the safety of air navigation. This Act empowers the Governor-General to make regulations in the interests of aviation safety, including the issuance of airworthiness directives (ADs) as per regulation 39.001 of the Civil Aviation Safety Regulations 1998. These ADs, which are legislative instruments, aim to ensure the continuing airworthiness of aircraft in accordance with international standards set by ICAO Contracting States. The Civil Aviation Safety Authority (CASA), as Australia's national airworthiness authority, has the responsibility to assess and issue ADs in response to directives from the State of Design, ensuring compliance with both national and international safety requirements. In line with these obligations, CASA issued and subsequently cancelled AD/S-76/22 concerning Sikorsky S-76 series Helicopters, reflecting the resolution of the identified unsafe condition without the need for a replacement AD.
Scope and Application
The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 govern the issuance of airworthiness directives (ADs) in Australia, with the Civil Aviation Safety Authority (CASA) having the authority to issue these directives under regulation 39.001. These directives are legislative instruments, as they are disallowable instruments under section 46A of the Acts Interpretation Act 1901 and thus subject to the Legislative Instruments Act 2003. The ADs apply to specific kinds of aircraft or aeronautical products and are intended to ensure the continuing airworthiness of these aircraft, in line with obligations under Annex 8 to the Convention on International Civil Aviation. The State of Design holds overall responsibility for the airworthiness of an aircraft type, while the State of Registry, in this case CASA, is responsible for the airworthiness of individual aircraft registered in Australia. The ADs are issued by CASA following assessments of information from the State of Design and serve to mandate necessary requirements to maintain airworthiness. Notably, the cancellation of an AD, such as AD/S-76/22 affecting Sikorsky S-76 series Helicopters, is a result of Australia’s international obligations and does not require public consultation or a Regulatory Impact Statement.
Key Provisions
The Civil Aviation Act 1988, in conjunction with the Civil Aviation Safety Regulations 1998, provides the framework for the issuance of airworthiness directives (ADs) (sections 98 and 39.001). Section 39.001(5) of these regulations stipulates that ADs are disallowable instruments under section 46A of the Acts Interpretation Act 1901 and are thus legislative instruments according to section 6 of the Legislative Instruments Act 2003. These directives, which are essential for ensuring the continuing airworthiness of aircraft types, are issued in accordance with Annex 8 to the Convention on International Civil Aviation. The State of Design has the overarching responsibility for the airworthiness of an aircraft type and must provide necessary information to the State of Registry to ensure the aircraft's continuing airworthiness. The State of Registry, in turn, is responsible for ensuring the ongoing airworthiness of individual aircraft and must develop or adopt requirements to achieve this.
Entities governed by the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 must adhere to the requirements outlined in the ADs issued by the Civil Aviation Safety Authority (CASA). For instance, when a State of Design issues an AD against a type of aircraft registered in Australia, CASA must evaluate this information and, if appropriate, issue an Australian AD to enforce the requirements of the State of Design. This ensures that Australian aircraft meet the safety standards set forth by the international community. The AD/S-76/22 affecting Sikorsky S-76 series Helicopters, which was issued by CASA, has been cancelled as a result of Australia's obligations under the Convention on International Civil Aviation. This cancellation became effective on 2 July 2009, and no replacement AD is required because the unsafe condition no longer exists.
Breaches of the requirements set forth in the ADs can have serious civil and criminal consequences. Failure to comply with ADs can result in the grounding of aircraft, which can lead to substantial financial penalties for operators and potential criminal charges for individuals responsible for ensuring compliance. The maximum penalties for non-compliance can include fines and imprisonment, depending on the severity of the breach and the impact on aviation safety. It is essential for all parties involved in the operation and maintenance of aircraft to be fully aware of and comply with the ADs to avoid these serious repercussions.