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 Japanese JCAB issued AD TCD-4114A-2006, affecting MBB BK-117 helicopters, in 2006. Japan is the State of Design for this type. As a result of a request from industry, CASA has amended the equivalent Australian AD to exempt new design main rotor blades from the applicability of this AD. The amended AD, AD/JBK 117/6 Amendment 5, will become effective on 25 October 2007. This AD cancels and replaces the previous issue.
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, 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 was enacted to provide a comprehensive legislative framework for civil aviation in Australia, with a primary focus on ensuring the safety and efficiency of air navigation. This Act empowers the Governor-General to make regulations that serve the interests of air navigation safety, including the issuance of airworthiness directives (ADs) by the Civil Aviation Safety Authority (CASA) under the Civil Aviation Safety Regulations 1998. The objective of these regulations is to maintain and enhance the safety standards of aircraft and aeronautical products, thereby fulfilling Australia's obligations under international conventions, such as Annex 8 to the Convention on International Civil Aviation. The ADs serve as a crucial tool for ensuring the continuing airworthiness of aircraft, mandating specific requirements as directed by the State of Design, and subsequently adopted by the State of Registry, which in Australia is CASA. This legislative framework underscores the importance of coordinated international efforts to maintain high safety standards in civil aviation.
Scope and Application
The Civil Aviation Safety Regulations 1998, pursuant to section 98 of the Civil Aviation Act 1988, empower the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products, thereby ensuring the safety of air navigation. These ADs are legislative instruments under the Acts Interpretation Act 1901 and are designed to maintain the continuing airworthiness of aircraft, in accordance with the State of Design's responsibilities under Annex 8 to the Convention on International Civil Aviation. The State of Registry, in this case CASA, must assess the information provided by the State of Design and issue an Australian AD if necessary to mandate the required safety measures. An example of this is the amendment to the Australian AD for MBB BK-117 helicopters, following a Japanese AD, which exempts new design main rotor blades from the directive. This AD, issued under Australia's obligations under international aviation conventions, does not require public consultation or a Regulatory Impact Statement, reflecting its technical nature and direct alignment with international safety standards.
Key Provisions
The Civil Aviation Act 1988, supported by the Civil Aviation Safety Regulations 1998, provides the framework under which airworthiness directives (ADs) can be issued. Specifically, section 98 of the Act allows the Governor-General to create regulations for the safety of air navigation, and regulation 39.001 of the Civil Aviation Safety Regulations 1998 permits the Civil Aviation Safety Authority (CASA) to issue ADs for certain types of aircraft or aeronautical products. Under subregulation 39.001(5), ADs are classified as disallowable instruments, meaning they must adhere to the Legislative Instruments Act 2003. This places ADs within the realm of legislative instruments, which must be subject to parliamentary scrutiny.
The obligations of the Act and Regulations primarily rest on CASA as the national airworthiness authority. CASA must ensure the continuing airworthiness of aircraft by assessing information from the State of Design and, if necessary, issuing an Australian AD. This is particularly pertinent when a State of Design issues an AD for a type of aircraft registered in Australia, such as the MBB BK-117 helicopters under the Japanese Civil Aviation Bureau (JCAB) AD TCD-4114A-2006. CASA’s role includes amending and issuing ADs to align with international obligations under the Convention on International Civil Aviation and to address industry requests.
There are no specific offences, penalties, or civil/criminal consequences outlined in the provided text for non-compliance with ADs. However, the text indicates that ADs are crucial for maintaining airworthiness and safety standards. Failure to comply with an AD could potentially result in legal consequences under the broader framework of the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998, which may include penalties such as fines or other enforcement actions as prescribed by the legislation. The exact penalties would depend on the specific circumstances and provisions of the broader Act and Regulations.
The text further clarifies that ADs, such as AD/JBK 117/6 Amendment 5, do not require public consultation due to their alignment with international conventions and their direct response to directives from the State of Design. Additionally, the Office of Best Practice Regulation has determined that ADs do not necessitate a Regulatory Impact Statement, streamlining the process for issuing such directives. This amendment process and issuance are carried out by the Manager, Airframes in the Airworthiness Engineering Branch, on behalf of CASA, as mandated by subsection 84A(2) of the Act.