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 has raised AD/GA8/3 to correct an unsafe situation on Gippsland Aeronautics GA-8 Airvan aircraft. Service experience has shown that the forward slide on the GA-8’s cargo door is prone to excessive wear. Such wear could lead to failure of the slide, and this could result in the cargo door becoming detached. In that event, there is a possibility of the cargo door hitting the horizontal stabiliser, and this could render the aircraft uncontrollable. As Australia is the State of Design for the GA-8, CASA is required to develop, and to transmit to other States of Registry, an AD to correct the problem.
CASA has consulted with the aircraft manufacturer, which has contributed to the drafting of this directive. CASA has not consulted with other elements of the Australian industry and public because the potential consequences of the problem require the directive to be published quickly.
The Office of Regulatory Review has determined that ADs do not require a Regulatory Impact Statement.
The AD has been made by the General Manager, Manufacturing, Certification and New Technologies Office, on behalf of CASA, in accordance with subsection 84A (2) of the Act.
Overview
The Civil Aviation Act 1988 was enacted to ensure the safety and efficiency of civil aviation in Australia, addressing issues related to aircraft airworthiness and safety standards. Under this Act, the Governor-General has the authority to make regulations for the purposes of the Act, specifically to promote the safety of air navigation. The Civil Aviation Safety Regulations 1998 further empower the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products, which are legislative instruments subject to disallowance and review. The purpose of these ADs is to ensure the continuing airworthiness of aircraft and address identified safety issues, as mandated by international standards such as those outlined in Annex 8 to the Convention on International Civil Aviation. The State of Design, in this case, Australia for the Gippsland Aeronautics GA-8 Airvan, has a responsibility to issue ADs to correct unsafe situations, which CASA must then assess and, if necessary, adopt for Australian-registered aircraft. This particular AD/GA8/3 was issued by CASA to address a safety issue related to excessive wear on the forward slide of the cargo door, which could lead to detachment and potential loss of control of the aircraft.
Scope and Application
The Civil Aviation Safety Regulations 1998, under section 98 of 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 to ensure the safety of air navigation. These ADs are legislative instruments that mandate corrective actions to address safety concerns identified in aircraft design or operation. The ADs are intended to ensure the continuing airworthiness of aircraft as per international standards set by the Convention on International Civil Aviation. The State of Design, in this case, Australia for the Gippsland Aeronautics GA-8 Airvan, holds responsibility for the airworthiness of an aircraft type and must issue necessary directives to ensure safety. CASA, acting as Australia's national airworthiness authority, must then assess these directives and, if appropriate, issue corresponding Australian ADs to enforce the required safety measures. The ADs apply to all entities operating affected aircraft within Australian jurisdiction, ensuring compliance with safety regulations to prevent unsafe conditions that could compromise flight safety.
Key Provisions
The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 empower the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for types of aircraft or aeronautical products (section 98 and regulation 39.001 respectively). These ADs serve as legislative instruments, designed to ensure the continuing airworthiness of aircraft types, and are mandated by international conventions such as Annex 8 to the Convention on International Civil Aviation. For example, AD/GA8/3 was issued to address a safety issue with the Gippsland Aeronautics GA-8 Airvan aircraft, specifically concerning the excessive wear on the forward slide of the cargo door, which could potentially lead to the detachment of the cargo door and subsequent loss of aircraft control.
The obligations placed on the parties governed by these regulations are primarily safety-focused. CASA, as Australia's national airworthiness authority, must rigorously assess any AD issued by the State of Design and, if necessary, issue corresponding Australian ADs to ensure compliance with international safety standards. As the State of Design for the GA-8 Airvan, CASA is obligated to develop and transmit ADs to other States of Registry to maintain the safety and airworthiness of the aircraft. The State of Registry, in this case Australia, must ensure that the aircraft meet the continuing airworthiness requirements set out in the ADs. These obligations extend to the aircraft manufacturers and operators, who must comply with the ADs to maintain the safety standards of their aircraft.
Failure to comply with an AD can result in serious legal consequences. Regulatory non-compliance can lead to enforcement actions by CASA, including potential fines, suspension or revocation of airworthiness certificates, and other administrative penalties. The severity of these consequences underscores the critical importance of adhering to ADs to ensure the safety of air navigation. Under the Civil Aviation Safety Regulations 1998, the penalties for non-compliance can be substantial, reflecting the high stakes involved in aviation safety. It is important for all parties involved to be fully aware of their obligations and to act promptly to comply with any issued ADs.