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.
AD/R22/53 required the replacement of part number A016-2 main rotor blades with part number A016-4 blades, so AD/R22/36 Amendment 1 is no longer required, as it applies only to A016-2 blades. Hence, CASA has cancelled Australian AD/R22/36, Amendment 1. The cancellation will become effective on 6 July 2006. No replacement AD is required, as the original unsafe condition has been corrected by AD/R22/53.
As this AD has been cancelled because of Australia’s obligations under the Convention on International Civil Aviation, and because it is cancelled in response to an AD raised by the relevant State of Design, no consultation with the Australian public has taken place on this AD cancellation. The Office of Regulatory Review has determined that ADs do not require a Regulatory Impact Statement.
The AD has been made by the Manager, Airframes in the Manufacturing, Certification and New Technologies Office, on behalf of CASA, in accordance with subsection 84A (2) of the Act.
Overview
The Civil Aviation Act 1988 was enacted by the Australian Parliament to establish a framework for the regulation of civil aviation in Australia, with a primary focus on ensuring the safety and efficiency of air navigation. The Act empowers the Governor-General to make regulations, including the issuance of airworthiness directives, which are integral to maintaining the safety standards of aircraft and aeronautical products, aligning with the overarching policy objective of safeguarding the public and enhancing the safety of air navigation. These directives are critical in fulfilling Australia's responsibilities under international conventions, such as Annex 8 to the Convention on International Civil Aviation, which mandates that the State of Design and the State of Registry collaborate to ensure an aircraft's continuing airworthiness. In this context, the Civil Aviation Safety Regulations 1998 further elaborate on the regulatory framework, providing the Civil Aviation Safety Authority (CASA) with the authority to issue airworthiness directives based on the safety needs identified by the relevant State of Design.
Scope and Application
The Civil Aviation Safety Regulations 1998, under the Civil Aviation Act 1988, grant the Civil Aviation Safety Authority (CASA) the authority to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products. These ADs, as legislative instruments, aim to ensure the safety of air navigation and compliance with international standards as outlined in Annex 8 to the Convention on International Civil Aviation. The State of Design of an aircraft type bears the primary responsibility for its continuing airworthiness, and must provide necessary information to States of Registry to maintain safety standards. In Australia, CASA, as the national airworthiness authority, is tasked with assessing information from the State of Design and issuing corresponding ADs as required. For example, AD/R22/53 necessitated the replacement of certain main rotor blades, leading to the cancellation of AD/R22/36 Amendment 1, as the safety issue it addressed has been resolved. The issuance and cancellation of such ADs do not typically require public consultation or a Regulatory Impact Statement, and are made in accordance with the provisions of the Civil Aviation Act 1988.
Key Provisions
The Civil Aviation Act 1988, along with the Civil Aviation Safety Regulations 1998, provides the legislative framework within which airworthiness directives (ADs) are issued and managed. Under section 98 of the Civil Aviation Act 1988, the Governor-General has the authority to create regulations that support the Act, particularly in the interest of ensuring the safety of air navigation. Regulation 39.001 of the Civil Aviation Safety Regulations 1998 empowers the Civil Aviation Safety Authority (CASA) to issue ADs for specific types of aircraft or aeronautical products. This regulatory power is further defined in subregulation 39.001(5), which states that an AD is a disallowable instrument under section 46A of the Acts Interpretation Act 1901, making it a legislative instrument as per section 6 of the Legislative Instruments Act 2003.
In practical terms, ADs serve as critical tools for ensuring the continuing airworthiness of aircraft. According to Annex 8 of the Convention on International Civil Aviation, the State of Design holds the primary responsibility for the ongoing airworthiness of a specific aircraft type and must supply any necessary information to the States of Registry to support this effort. In the Australian context, CASA, as the national airworthiness authority, must evaluate any AD issued by a State of Design and, if deemed necessary, issue an Australian AD to enforce the requirements specified by the State of Design. This ensures that aircraft registered in Australia meet the continuing airworthiness standards set forth by the international community.
The obligations imposed by the ADs on the relevant parties, such as aircraft manufacturers and operators, include compliance with the directives to maintain airworthiness. For instance, AD/R22/53 mandates the replacement of certain main rotor blades, which led to the cancellation of AD/R22/36 Amendment 1 as the original unsafe condition has been addressed. The cancellation of an AD, such as AD/R22/36 Amendment 1, is effective from a specified date, in this case, 6 July 2006, and no further action is required as the unsafe condition has been rectified. As these directives often align with international obligations, there is no requirement for public consultation or a Regulatory Impact Statement.
In terms of consequences for non-compliance, the Civil Aviation Safety Regulations 1998 and related legislation establish penalties for breaches. Failure to comply with an AD can result in serious civil or criminal consequences. For instance, under the Civil Aviation Act 1988, an aircraft operator who does not comply with an AD may face significant fines or even imprisonment. The exact penalties depend on the severity of the breach and can vary, but they are intended to ensure that airworthiness standards are rigorously maintained to protect public safety.