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.
The Civil Aviation Safety Authority or its predecessors issued AD/DHC-1/13 affecting De Havilland DHC-1 model aeroplanes. CASA has assessed this AD and as a result has cancelled Australian AD/DHC-1/13. The cancellation will become effective on 25 September 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, was introduced to regulate civil aviation activities within Australia, focusing primarily on safety and efficiency. It empowers the Governor-General to create regulations that safeguard air navigation, aligning with the overarching goal of maintaining public safety. Under the authority granted by this Act, the Civil Aviation Safety Regulations 1998 were formulated, which, among other provisions, allow the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products. These ADs are legislative instruments that play a crucial role in ensuring the continuing airworthiness of aircraft, a responsibility shared between the State of Design and the State of Registry as outlined in Annex 8 of the Convention on International Civil Aviation. The ADs are designed to address safety issues and are issued by most International Civil Aviation Organization (ICAO) Contracting States. In the specific case of De Havilland DHC-1 model aeroplanes, CASA issued and subsequently cancelled AD/DHC-1/13, reflecting Australia's commitment to international aviation safety standards and the resolution of identified safety concerns.
Scope and Application
The Civil Aviation Safety Regulations 1998, under the Civil Aviation Act 1988, empower the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products. These ADs are instrumental in ensuring the continuing airworthiness of aircraft, aligning with international standards set by Annex 8 to the Convention on International Civil Aviation. The State of Design holds primary responsibility for the ongoing airworthiness of an aircraft type, and must supply necessary information to States of Registry to facilitate this. Correspondingly, the State of Registry is tasked with the responsibility of ensuring the continuing airworthiness of individual aircraft through the development or adoption of relevant requirements. CASA, acting within its regulatory capacity, issued AD/DHC-1/13 for De Havilland DHC-1 model aeroplanes, which has since been assessed and cancelled due to the resolution of the initial unsafe condition. This cancellation, effective from 25 September 2008, aligns with Australia's obligations under the Convention on International Civil Aviation and has been executed without the need for public consultation or a Regulatory Impact Statement, as determined by the Office of Best Practice Regulation.
Key Provisions
The Civil Aviation Act 1988, particularly section 98, provides the framework for the Governor-General to enact regulations to ensure the safety of air navigation. These regulations are intended to maintain high safety standards in the aviation industry. Under regulation 39.001 of the Civil Aviation Safety Regulations 1998, the Civil Aviation Safety Authority (CASA) has the authority to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products. An AD is legally considered a disallowable instrument under section 46A of the Acts Interpretation Act 1901, and it is classified as a legislative instrument in accordance with section 6 of the Legislative Instruments Act 2003.
Under these regulations, the State of Design bears the primary responsibility for the continuing airworthiness of an aircraft type. This includes providing all necessary information to the States of Registry to ensure the ongoing airworthiness of the aircraft. The State of Registry, in turn, is tasked with developing or adopting requirements to maintain the airworthiness of the aircraft within its jurisdiction. This cooperative approach is mandated under Annex 8 to the Convention on International Civil Aviation, which both the State of Design and the State of Registry must adhere to.
Specifically, CASA has issued and subsequently cancelled AD/DHC-1/13, which affected De Havilland DHC-1 model aeroplanes. The cancellation of this AD was due to the unsafe condition it was meant to address no longer existing. This cancellation aligns with Australia’s international obligations under the Convention on International Civil Aviation, hence there was no need for public consultation or a Regulatory Impact Statement. The AD was issued by the Manager, Airframe and Structures, in the Airworthiness Engineering Group on behalf of CASA, as stipulated in subsection 84A(2) of the Act.
In terms of compliance, the Act imposes stringent obligations on both the State of Design and the State of Registry to ensure that all necessary information is shared and that appropriate measures are in place to maintain the airworthiness of aircraft. Failure to comply with these regulations could result in severe consequences, including potential risks to public safety. While specific penalties for non-compliance with airworthiness directives are not detailed in the provided text, violations of safety regulations under the Civil Aviation Act 1988 can lead to civil or criminal penalties, including fines and imprisonment, depending on the severity of the breach.