CIVIL AVIATION ACT 1988
CIVIL AVIATION 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 UK CAA issued Mandatory Service Bulletin 49-036-36019E, affecting British Aerospace 146 aircraft, in 2004. The United Kingdom is the State of Design for this type. As a result of a request from industry, CASA has amended the equivalent Australian AD to AD/BAe 146/105 Amendment 1. The amended AD, AD/BAe 146/105 Amendment 1, will become effective on 14 April 2005. 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 Section Head - Systems, Airworthiness Standards Branch, Standards Division, on behalf of CASA, in accordance with subsection 84A (2) of the Act.
Overview
The Civil Aviation Act 1988 was enacted to regulate civil aviation in Australia, providing a legislative framework to ensure the safety and efficiency of air navigation. One of the significant gaps it aimed to address was the need for standardised and enforceable measures to maintain the airworthiness of aircraft, which is crucial for public safety. The Act empowers the Governor-General to make regulations that serve the interests of air navigation safety, including the issuance of airworthiness directives by the Civil Aviation Safety Authority (CASA). These directives are critical in maintaining the safety standards required by international conventions such as the Convention on International Civil Aviation, which places responsibility on the State of Design to ensure the continuing airworthiness of aircraft types. CASA, as Australia's national airworthiness authority, must issue corresponding directives when necessary, ensuring compliance with international obligations and domestic safety standards.
Scope and Application
The Civil Aviation Act 1988, through the Civil Aviation Safety Regulations 1998, mandates the issuance of airworthiness directives (ADs) by the Civil Aviation Safety Authority (CASA) to ensure the continuing airworthiness of aircraft types registered in Australia. This regulation applies to all aircraft and aeronautical products, and CASA, as the national airworthiness authority, has the responsibility to assess and implement ADs issued by the State of Design, which in this case is the United Kingdom for British Aerospace 146 aircraft. The ADs are legislative instruments under the Legislative Instruments Act 2003 and are aimed at maintaining safety standards in line with international obligations under the Convention on International Civil Aviation. The ADs do not require public consultation or a Regulatory Impact Statement, as they are issued in response to directives from the relevant State of Design and are intended to uphold international safety standards.
Key Provisions
The Civil Aviation Act 1988 and the Civil Aviation Regulations 1998 set out the legislative framework governing airworthiness directives (ADs) in Australia. Under section 98 of the Civil Aviation Act 1988, the Governor-General has the power to make regulations necessary for the safety of air navigation, and this authority is exercised through regulation 39.001 of the Civil Aviation Safety Regulations 1998, which allows the Civil Aviation Safety Authority (CASA) to issue ADs for certain types of aircraft or aeronautical products. Section 39.001(5) further clarifies that an AD is a disallowable instrument, and thus a legislative instrument, as per section 46A of the Acts Interpretation Act 1901 and section 6 of the Legislative Instruments Act 2003. This framework ensures that ADs are legally binding instruments designed to maintain the airworthiness of aircraft.
The obligations imposed by the Civil Aviation Act 1988 and the Civil Aviation Regulations 1998 primarily rest on CASA as Australia’s national airworthiness authority. According to Annex 8 to the Convention on International Civil Aviation, the State of Design has the overarching responsibility for the continuing airworthiness of an aircraft type and must provide necessary information to ensure this to the appropriate States of Registry. In Australia, CASA must assess information provided by the State of Design and, if appropriate, issue an Australian AD to enforce the requirements set by the State of Design. The State of Registry, in this case, CASA, must also develop or adopt requirements to ensure the continuing airworthiness of aircraft within Australia. This dual responsibility ensures that ADs are effectively implemented to maintain safety standards across the Australian aviation industry.
Failure to comply with an AD can result in significant legal and safety consequences. The Civil Aviation Act 1988 and the Civil Aviation Regulations 1998 do not explicitly outline specific offences, penalties, or consequences for non-compliance with ADs. However, non-compliance generally falls under broader aviation safety regulations, where CASA has the authority to take enforcement actions. These actions may include fines, suspension of airworthiness certificates, or other regulatory measures to ensure compliance. The seriousness of non-compliance is underscored by the potential for severe safety risks, which can lead to criminal charges and imprisonment if violations result in significant harm or endanger safety. The legal framework thus ensures that ADs are strictly adhered to, maintaining high safety standards in the aviation sector.