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/S-76/54 affecting Sikorsky S-76A series Helicopters. CASA has assessed this AD and as a result has cancelled Australian AD/S-76/54. The cancellation will become effective on
2 July 2009. 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 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, aims to regulate civil aviation and ensure the safety of air navigation. Under this Act, the Civil Aviation Safety Regulations 1998 allow the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs), which are legislative instruments that mandate safety requirements for specific types of aircraft or aeronautical products. These ADs are essential for maintaining the continuing airworthiness of aircraft, a responsibility shared between the State of Design and the State of Registry. In the context of international obligations under the Convention on International Civil Aviation, CASA has the authority to issue, amend, or cancel ADs based on assessments of safety information from the State of Design. Recently, CASA cancelled Australian AD/S-76/54 for Sikorsky S-76A series Helicopters due to the resolution of the unsafe condition, without the need for a Regulatory Impact Statement or public consultation. This action was taken by the Manager, Systems and New Technologies, in the Airworthiness Engineering Group, on behalf of CASA, in accordance with the Act.
Scope and Application
The Civil Aviation Act 1988, as supplemented by the Civil Aviation Safety Regulations 1998, authorises the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products. These ADs serve to ensure the continuing airworthiness of aircraft registered in Australia, aligning with international standards under Annex 8 of the Convention on International Civil Aviation. ADs are legislative instruments that mandate compliance with safety regulations and are essential for maintaining the safety and airworthiness of aircraft. This legislative framework applies to the State of Registry of individual aircraft, which is responsible for ensuring the continuing airworthiness of aircraft registered within its jurisdiction. CASA, acting as Australia's national airworthiness authority, evaluates and issues ADs based on assessments of safety information provided by the State of Design. In the specific case of AD/S-76/54 affecting Sikorsky S-76A series Helicopters, CASA has cancelled the Australian AD, effective from 2 July 2009, due to the resolution of the unsafe condition, thus no replacement AD is necessary.
Key Provisions
The main operative sections of the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 (CASR) include section 98 of the Act, which allows the Governor-General to make regulations for the safety of air navigation, and regulation 39.001 of the CASR, which permits the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs). An AD is a legislative instrument under section 46A of the Acts Interpretation Act 1901 and section 6 of the Legislative Instruments Act 2003. These provisions are critical as they establish the framework under which CASA can mandate airworthiness requirements for specific types of aircraft or aeronautical products.
Under these regulations, the State of Design holds the primary responsibility for the continuing airworthiness of an aircraft type, as stipulated in Annex 8 to the Convention on International Civil Aviation. The State of Registry, in this case CASA, must assess any ADs issued by the State of Design and, if necessary, issue an Australian AD to ensure compliance with airworthiness standards. This ensures that all aircraft registered in Australia meet the necessary safety standards, thus promoting safe air navigation. CASA has the authority to cancel an AD if the unsafe condition no longer exists, as seen in the cancellation of AD/S-76/54 affecting Sikorsky S-76A series helicopters.
The obligations imposed on parties governed by these regulations include the State of Design’s responsibility to provide necessary information to ensure the continuing airworthiness of aircraft types. The State of Registry, CASA, must develop or adopt requirements to ensure these standards are met. Aircraft operators must comply with all ADs applicable to their aircraft, ensuring they adhere to the safety requirements set forth by CASA. Failure to comply with these directives can lead to serious safety risks and potential legal consequences.
Offences and penalties for non-compliance with airworthiness directives are severe. Under the Civil Aviation Act 1988, non-compliance with an AD can result in significant fines and, in some cases, imprisonment. The specific penalties are determined by the severity of the breach and the potential risk to safety. The maximum penalties can include substantial fines up to $210,000 for individuals and $1,050,000 for corporations, alongside potential imprisonment terms. These stringent measures underscore the importance of adhering to airworthiness directives to maintain safety standards in air navigation.