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/CESSNA 180/33 affecting Cessna 180 aircraft. CASA has assessed this AD and as a result has cancelled Australian AD/CESSNA 180/33. The cancellation will become effective on 5 June 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, Systems and New Technologies 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 to ensure the safety and efficiency of civil aviation, empowers the Governor-General to make regulations, including issuing airworthiness directives (ADs), to maintain the safety of air navigation. Under regulation 39.001 of the Civil Aviation Safety Regulations 1998, the Civil Aviation Safety Authority (CASA) has the authority to issue ADs for specific types of aircraft or aeronautical products. This authority is exercised in line with international standards, particularly under Annex 8 to the Convention on International Civil Aviation, which places the responsibility for an aircraft type's continuing airworthiness on the State of Design, while the State of Registry is responsible for the individual aircraft. The Civil Aviation Safety Authority, as Australia's national airworthiness authority, must evaluate and implement these ADs to ensure compliance with international obligations and Australian regulatory requirements. In this specific case, CASA has cancelled Australian AD/CESSNA 180/33, affecting Cessna 180 aircraft, due to the resolution of the unsafe condition, and no further action is required as the risk no longer exists.
Scope and Application
The Civil Aviation Act 1988 and its accompanying Civil Aviation Safety Regulations 1998 provide the legislative framework for the issuance of airworthiness directives (ADs) in Australia, with the objective of ensuring the safety of air navigation. Specifically, regulation 39.001 of the Civil Aviation Safety Regulations 1998 authorises the Civil Aviation Safety Authority (CASA) to issue ADs for particular types of aircraft or aeronautical products. These ADs are legislative instruments as defined by the Acts Interpretation Act 1901 and the Legislative Instruments Act 2003. This regulatory framework applies to all aircraft registered in Australia, placing the onus on the State of Registry, which in this case is CASA, to ensure the continuing airworthiness of these aircraft by adhering to the ADs issued. The ADs, such as AD/CESSNA 180/33 for Cessna 180 aircraft, are aligned with international standards as set out in Annex 8 to the Convention on International Civil Aviation, which dictates that the State of Design holds overall responsibility for the continuing airworthiness of an aircraft type. CASA’s role includes the assessment and potential issuance of Australian ADs in response to directives from the State of Design, with the capacity to cancel such directives if the unsafe conditions they address no longer exist, as demonstrated by the cancellation of AD/CESSNA 180/33 on 5 June 2008.
Key Provisions
The key sections of the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 that pertain to the issuing of airworthiness directives (ADs) are sections 98 and 39.001 respectively. Section 98 of the Civil Aviation Act allows the Governor-General to make regulations for the safety of air navigation, and regulation 39.001 of the Civil Aviation Safety Regulations empowers CASA to issue ADs for types of aircraft or aeronautical products. This regulatory power is further clarified by subregulation 39.001(5), which states that ADs are disallowable instruments under section 46A of the Acts Interpretation Act 1901, and thus considered legislative instruments in accordance with section 6 of the Legislative Instruments Act 2003.
The obligations imposed on parties under these provisions include the responsibility of the State of Design to ensure the continuing airworthiness of an aircraft type and to provide necessary information to States of Registry, as outlined in Annex 8 to the Convention on International Civil Aviation. The State of Registry, in turn, must develop or adopt requirements to ensure the continuing airworthiness of aircraft registered within its territory. For Australia, this means that CASA must assess any ADs issued by the State of Design for types of aircraft on the Australian Register and, if deemed necessary, issue corresponding Australian ADs to enforce the requirements. In this instance, CASA has assessed and subsequently cancelled Australian AD/CESSNA 180/33, effective from 5 June 2008, as the unsafe condition it addressed no longer exists.
Breaches of the provisions governing ADs may result in various civil or criminal consequences. While the specific penalties for non-compliance with ADs are not detailed in the provided text, it is reasonable to infer that failure to adhere to such directives could lead to safety violations and potential legal repercussions. Non-compliance might also result in administrative penalties or, in severe cases, criminal charges, depending on the gravity of the violation and its impact on aviation safety. Given that ADs are a critical component of maintaining airworthiness, ensuring compliance is paramount to safeguarding the integrity of air navigation systems.