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.
CASA issued AD/PA-23/1, affecting Piper PA-23 model aircraft in the mid 1950s. CASA has reviewed this AD and as a result has decided to cancel it. The cancellation will become effective on 3 July 2008. No replacement AD is required, as all affected aircraft would have been inspected, and, if necessary, modified long ago.
No consultation with the Australian public has taken place on this AD cancellation, because the cancellation results in a reduction of the regulatory burden. 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 establish a comprehensive framework for the regulation of civil aviation in Australia, addressing the need for a unified and effective legislative structure to govern the safety, efficiency, and orderly development of civil aviation. This Act empowers the Governor-General to make regulations necessary for the safety of air navigation, with the Civil Aviation Safety Regulations 1998 playing a crucial role in this regulatory scheme. One significant regulation under this Act is the ability for the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs), which are legislative instruments made to ensure the continuing airworthiness of aircraft. The policy objective underlying the issuance of ADs is to maintain the highest standards of safety in civil aviation by mandating compliance with specific maintenance, repair, or alteration requirements for aircraft and aeronautical products. CASA's role in issuing these directives is integral to fulfilling international obligations under the Convention on International Civil Aviation and ensuring that Australian aviation standards align with global best practices.
Scope and Application
The Civil Aviation Safety Regulations 1998, made under the Civil Aviation Act 1988, apply to any person or entity involved in the operation, maintenance, and registration of aircraft within Australia, including aircraft manufacturers, operators, and maintenance service providers. These regulations are designed to ensure the safety of air navigation and the continuing airworthiness of aircraft. Regulation 39.001 specifically empowers the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for certain kinds of aircraft or aeronautical products. These ADs are legislative instruments that must comply with the Acts Interpretation Act 1901 and the Legislative Instruments Act 2003. The State of Registry, which is the country where an aircraft is registered, bears the responsibility for ensuring the continuing airworthiness of individual aircraft. CASA, as Australia’s national airworthiness authority, has the duty to assess and, if necessary, issue Australian ADs that mandate the requirements of the State of Design. The recent cancellation of AD/PA-23/1 for Piper PA-23 model aircraft, effective from 3 July 2008, exemplifies this process. As all affected aircraft would have been inspected and modified long ago, no replacement AD is required, and the cancellation aims to reduce regulatory burden without necessitating public consultation or a Regulatory Impact Statement.
Key Provisions
The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 provide the framework under which the Civil Aviation Safety Authority (CASA) issues airworthiness directives (ADs). Under section 98 of the Civil Aviation Act 1988, the Governor-General can enact regulations in the interest of air navigation safety, while regulation 39.001 of the Civil Aviation Safety Regulations 1998 allows CASA to issue ADs for types of aircraft or aeronautical products. An AD is considered a disallowable instrument under section 46A of the Acts Interpretation Act 1901 and, in accordance with section 6 of the Legislative Instruments Act 2003, it is classified as a legislative instrument. Such directives are vital for maintaining the continuing airworthiness of aircraft, as outlined in Annex 8 to the Convention on International Civil Aviation.
These ADs are integral in ensuring the continuing airworthiness of aircraft types, with the State of Design bearing the responsibility to provide necessary information to the States of Registry. The State of Registry, in turn, must develop or adopt requirements to ensure the airworthiness of individual aircraft registered within its jurisdiction. In the context of Australian operations, CASA, as the national airworthiness authority, must evaluate any ADs issued by the State of Design and, if necessary, issue corresponding Australian ADs. This was exemplified by CASA's issuance of AD/PA-23/1 for Piper PA-23 model aircraft from the mid-1950s, which has now been reviewed and cancelled by CASA, effective 3 July 2008.
The obligations under the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 include the requirement for CASA to assess and, where appropriate, issue Australian ADs based on the information provided by the State of Design. CASA is mandated to ensure that all affected aircraft comply with the airworthiness requirements, and the cancellation of an AD, such as AD/PA-23/1, must be managed in a manner that maintains the safety standards without unnecessarily burdening the industry. The decision to cancel an AD without replacement, as in the case of AD/PA-23/1, indicates that all affected aircraft have already undergone necessary inspections and modifications, thereby obviating the need for further regulatory action.
There are no specified offences, penalties, or civil/criminal consequences mentioned in the text for non-compliance with ADs. However, the overarching framework of the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 ensures that CASA retains the authority to enforce compliance through other regulatory mechanisms. The safety of air navigation remains the paramount consideration, with CASA empowered to take appropriate action against entities that fail to adhere to the airworthiness directives issued under the Act.