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 Civil Aviation Safety Authority or its predecessors issued AD/AC/7 affecting all Twin Aero Commander aircraft models. CASA has assessed this AD and as a result has cancelled Australian AD/AC/7. The cancellation will become effective on 31 July 2008. No replacement AD is required, as the unsafe condition no longer exists.
As this AD has been cancelled because of Australia’s obligations under the Convention on International Civil Aviation, no consultation with the Australian public has taken place on this AD cancellation. 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, Airframe and Structures, in the Airworthiness Engineering Branch, on behalf of CASA, in accordance with subsection 84A (2) of the Act.
Overview
The Civil Aviation Act 1988, enacted by the Australian Parliament, serves to regulate civil aviation within Australia, with a primary focus on ensuring the safety of air navigation. Under section 98 of this Act, the Governor-General has the authority to establish regulations conducive to the Act’s objectives. The Civil Aviation Safety Regulations 1998 further detail the mechanisms through which airworthiness directives (ADs) are issued by the Civil Aviation Safety Authority (CASA), which is the national airworthiness authority in Australia. The issuance of ADs is guided by international standards, specifically Annex 8 to the Convention on International Civil Aviation, which mandates the State of Design to maintain the continuing airworthiness of an aircraft type and to share necessary information with the States of Registry. CASA's role includes assessing and, where necessary, issuing Australian ADs to enforce the requirements set by the State of Design. In line with these international obligations, CASA cancelled Australian AD/AC/7 for Twin Aero Commander aircraft models, effective from 31 July 2008, as the unsafe condition previously identified no longer exists.
Scope and Application
The Civil Aviation Act 1988, specifically through regulation 39.001 of the Civil Aviation Safety Regulations 1998, empowers the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) concerning types of aircraft or aeronautical products. These ADs are legislative instruments, subject to disallowance, and are critical in ensuring the continuing airworthiness of aircraft registered in Australia. The authority to issue such directives stems from the overarching responsibility of the State of Design to maintain airworthiness, as outlined in Annex 8 to the Convention on International Civil Aviation, and the corresponding duty of the State of Registry to enforce these standards. CASA, as Australia's national airworthiness authority, is tasked with assessing information from the State of Design and issuing Australian ADs to enforce necessary requirements. In line with international obligations, CASA has cancelled Australian AD/AC/7 for Twin Aero Commander aircraft models, effective from 31 July 2008, due to the cessation of the unsafe condition identified, thereby no longer necessitating a replacement AD. This cancellation process does not require public consultation or a Regulatory Impact Statement, as determined by the Office of Best Practice Regulation.
Key Provisions
The Civil Aviation Act 1988 (section 98) allows the Governor-General to establish regulations aimed at ensuring the safety of air navigation. Under regulation 39.001 of the Civil Aviation Safety Regulations 1998, the Civil Aviation Safety Authority (CASA) is empowered to issue airworthiness directives (ADs) for specified kinds of aircraft or aeronautical products. These directives are intended to ensure the continuing safety and airworthiness of aircraft, and they are considered legislative instruments as per section 46A of the Acts Interpretation Act 1901 and section 6 of the Legislative Instruments Act 2003. This regulatory framework ensures that aircraft remain safe and meet the required safety standards set forth by the State of Design and the State of Registry.
The obligations under this legislation require CASA to closely monitor and respond to ADs issued by the State of Design. When a State of Design issues an AD, CASA must evaluate the information provided to determine if an Australian AD is necessary to enforce the requirements of the original AD. This is part of CASA's responsibility to maintain the continuing airworthiness of aircraft registered in Australia. Annex 8 to the Convention on International Civil Aviation outlines that the State of Design has the overarching responsibility for the continuing airworthiness of an aircraft type, while the State of Registry is tasked with implementing the necessary requirements to ensure that individual aircraft remain airworthy. CASA’s role involves ensuring that Australian aviation standards align with international obligations and safety requirements.
Breach of the provisions of the ADs or failure to comply with CASA’s directives can lead to serious consequences. Non-compliance with airworthiness directives can result in significant penalties. Under the Civil Aviation Act 1988, offences related to non-compliance with ADs may result in civil penalties. The maximum penalties for such offences can include substantial fines, as outlined in the relevant sections of the Act. Additionally, continued non-compliance or unsafe operation of an aircraft can lead to enforcement actions by CASA, which may include grounding the aircraft or taking other regulatory measures to ensure compliance and public safety. These penalties underscore the importance of adhering to airworthiness directives and maintaining the safety standards set forth by the legislation.