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/DHA-3/18 affecting De Havilland DHA-3 (Drover) model aeroplanes. CASA has assessed this AD and as a result has cancelled Australian AD/DHA-3/18. The cancellation will become effective on 20 November 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 Group, 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, aiming to ensure the safety of air navigation. The Act provides the framework under which the Civil Aviation Safety Regulations 1998 were made, including the authority for the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for types of aircraft or aeronautical products. These directives are critical for maintaining the continuing airworthiness of aircraft as per international standards set by the International Civil Aviation Organization (ICAO) under Annex 8 to the Convention on International Civil Aviation. The objective of this regulatory approach is to ensure that both the State of Design and the State of Registry uphold their responsibilities towards airworthiness, with CASA acting as Australia’s national airworthiness authority to implement and enforce these standards domestically. The legislative process for ADs, including their cancellation, adheres to the requirements set out in the Legislative Instruments Act 2003, ensuring that such instruments are subject to appropriate scrutiny and transparency.
Scope and Application
The Civil Aviation Act 1988, in conjunction with the Civil Aviation Safety Regulations 1998, empowers the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) aimed at ensuring the safety of air navigation. These regulations apply to the types of aircraft or aeronautical products specified within the regulations and involve the assessment and enforcement of airworthiness requirements to maintain the safety standards of aircraft in Australian airspace. Airworthiness directives are legislative instruments, as outlined under section 6 of the Legislative Instruments Act 2003, and are used to address identified safety issues that may affect aircraft types registered in Australia. The scope of these directives extends to the continuous airworthiness of aircraft, where both the State of Design and the State of Registry bear responsibilities under Annex 8 of the Convention on International Civil Aviation. CASA, as the national airworthiness authority, assesses information from the State of Design and issues corresponding Australian ADs to mandate necessary safety measures. This process ensures compliance with international standards and maintains the safety and reliability of aircraft operating within Australia.
Key Provisions
The Civil Aviation Act 1988 (section 98) empowers the Governor-General to make regulations that serve the interests of air navigation safety. Within this framework, regulation 39.001 of the Civil Aviation Safety Regulations 1998 (CASR) enables the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products. Such directives are legally significant as they are classified as disallowable instruments under section 46A of the Acts Interpretation Act 1901, and they are legislative instruments as per section 6 of the Legislative Instruments Act 2003.
The State of Design, as outlined in Annex 8 to the Convention on International Civil Aviation, bears the overall responsibility for the continuing airworthiness of an aircraft type and must supply necessary information to ensure its airworthiness to the relevant States of Registry. In the Australian context, CASA, as the national airworthiness authority, is tasked with evaluating any ADs issued by the State of Design. If deemed necessary, CASA must issue an Australian AD to enforce the requirements set forth by the State of Design. This ensures that Australian-registered aircraft maintain their airworthiness in line with international standards.
Entities governed by these regulations, particularly aircraft operators, must adhere to the ADs issued by CASA. These directives mandate specific actions or compliance checks to ensure that aircraft remain airworthy. Failure to comply with these directives can result in significant safety risks, and thus, it is imperative for operators to follow the ADs strictly. CASA enforces these directives to maintain the safety and integrity of air navigation within Australia.
Breaches of ADs can lead to serious consequences. Under the Civil Aviation Act 1988, non-compliance with ADs is an offence, and CASA has the authority to take enforcement actions against non-compliant aircraft. The penalties for such breaches can include fines and potential grounding of the aircraft. The severity of the penalty depends on the nature and extent of the non-compliance, but the overarching aim is to ensure that all aircraft maintain the highest standards of airworthiness to protect public safety.