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 United Kingdom CAA issued G-2005-0027, affecting Dowty Rotol propellers in 2005. The United Kingdom is the State of Design for these propellers. As a result of a request from industry, CASA has amended the equivalent Australian AD to AD/PR/35 Amendment 4 which will become effective on 8 April 2010. 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 Regulatory Review has determined that ADs do not require a Regulatory Impact Statement.
The AD has been made by the Manager, Continuing Airworthiness in the Airworthiness and Engineering Branch, on behalf of CASA, in accordance with subsection 94 (1) of the Act.
Overview
The Civil Aviation Act 1988 was enacted to establish a comprehensive framework governing civil aviation in Australia, with a focus on ensuring the safety and efficiency of air navigation. This Act empowers the Governor-General to make regulations that serve the interests of aviation safety, with the Civil Aviation Safety Regulations 1998 being a critical component of this framework. One such regulation, 39.001, allows the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for particular types of aircraft or aeronautical products. These directives, which are legislative instruments under the Legislative Instruments Act 2003, are crucial for maintaining the continuing airworthiness of aircraft as mandated by international standards, particularly those outlined in Annex 8 to the Convention on International Civil Aviation. CASA's role as the national airworthiness authority involves assessing and, where necessary, issuing Australian ADs in response to directives from the State of Design, ensuring compliance with international obligations and domestic safety standards.
Scope and Application
The Civil Aviation Safety Regulations 1998, which extend from the Civil Aviation Act 1988, provide the authority for the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs). These ADs apply to specific types of aircraft or aeronautical products and are issued to ensure the safety of air navigation. The ADs are legislative instruments that must be assessed and, if appropriate, issued by CASA to mandate the requirements of the State of Design, which holds the overall responsibility for the continuing airworthiness of an aircraft type. The State of Registry, in this case CASA, is responsible for the continuing airworthiness of aircraft registered in Australia. Exemptions and exclusions from ADs are not explicitly stated in the text, though it is implied that the ADs are necessary to fulfil international obligations under the Convention on International Civil Aviation. No consultation of the Australian public has taken place for these ADs, and they do not require a Regulatory Impact Statement.
Key Provisions
The key provisions of the Civil Aviation Act 1988, as amended by the Civil Aviation Safety Regulations 1998, outline the framework for issuing airworthiness directives (ADs) under section 98 of the Act and regulation 39.001. An AD is a legislative instrument that can be issued by the Civil Aviation Safety Authority (CASA) to mandate requirements for the continuing airworthiness of specific types of aircraft or aeronautical products. This process is governed under subregulation 39.001(5) of the Civil Aviation Safety Regulations 1998 and is further delineated by the Legislative Instruments Act 2003. The AD in question, AD/PR/35 Amendment 4, specifically affects Dowty Rotol propellers and mandates compliance with the safety measures outlined by the United Kingdom Civil Aviation Authority (CAA) in G-2005-0027.
The obligations imposed by this legislation require CASA, as Australia’s national airworthiness authority, to assess and, if necessary, issue an Australian AD when the State of Design issues a corresponding directive. This ensures that all aircraft registered in Australia comply with international standards for airworthiness. Furthermore, the State of Registry must ensure that individual aircraft meet the continuing airworthiness requirements stipulated in the AD. These obligations are critical in maintaining the safety and reliability of aircraft operating within Australian airspace.
Failure to comply with the requirements set out in an AD can lead to significant consequences. Under the Civil Aviation Act 1988, non-compliance with an AD is an offence. Penalties for such breaches can include fines and, in severe cases, imprisonment. The specific penalties may vary depending on the severity and frequency of the breach, but they are designed to enforce strict adherence to the safety standards mandated by the AD. Ensuring compliance with ADs is thus not only a regulatory requirement but also a legal obligation to protect public safety in aviation.