AD/GENERAL/47 - 3 Pointer Type Altimeters - CANCELLED

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Legislation au F2007L03969 Not in force Legislative Instrument

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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/GENERAL/47 affecting all pressurised aircraft in 1972.  CASA has assessed this AD and as a result has cancelled Australian AD/GENERAL/47.  The cancellation will become effective on 25 October 2007.  No replacement AD is required, as the unsafe condition no longer exists.

As this AD has been cancelled thereby reducing the regulatory load on Australian operators no consultation with the Australian public has taken place.  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 was enacted by the Australian Parliament to establish a framework for the regulation of civil aviation within Australia, aiming to ensure safety and efficiency in air navigation. Section 98 of this Act allows the Governor-General to make regulations that support the Act’s objectives, including the safety of air navigation. The Civil Aviation Safety Regulations 1998, under regulation 39.001, empower the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products. These directives are considered legislative instruments under the Legislative Instruments Act 2003. The overarching goal of these regulations is to align with international standards, particularly those outlined in Annex 8 to the Convention on International Civil Aviation, ensuring that the State of Design and the State of Registry both maintain the continuing airworthiness of aircraft.

Scope and Application

The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 empower the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) aimed at ensuring the safety of air navigation. These ADs apply to kinds of aircraft or aeronautical products as stipulated in regulation 39.001 of the Civil Aviation Safety Regulations 1998. As legislative instruments, ADs are subject to disallowance under section 46A of the Acts Interpretation Act 1901 and are regulated under the Legislative Instruments Act 2003. In the context of international obligations, the State of Design has a primary responsibility for the continuing airworthiness of an aircraft type, while the State of Registry, in this case CASA, must ensure that the aircraft remain airworthy. Consequently, when a State of Design issues an AD, CASA is mandated to evaluate and, if necessary, issue a corresponding Australian AD to enforce the safety requirements. The scope of these ADs is expansive, covering all pressurised aircraft, although specific instances may vary based on the assessment of safety risks. Given the dynamic nature of aviation safety standards, CASA retains the authority to cancel existing ADs, as exemplified by the cancellation of AD/GENERAL/47 in 2007, without the need for public consultation or a Regulatory Impact Statement due to the specific circumstances of the cancellation.

Key Provisions

The Civil Aviation Act 1988, supplemented by the Civil Aviation Safety Regulations 1998, provides the framework for the regulation of airworthiness in Australia. Specifically, section 98 of the Civil Aviation Act 1988 allows the Governor-General to make regulations for the safety of air navigation. Regulation 39.001 of the Civil Aviation Safety Regulations 1998 empowers the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specified kinds of aircraft or aeronautical products. These ADs, as outlined in subregulation 39.001(5), are considered disallowable instruments under section 46A of the Acts Interpretation Act 1901, and thus fall under the definition of legislative instruments as per section 6 of the Legislative Instruments Act 2003. These airworthiness directives are crucial for maintaining the continuing airworthiness of aircraft as stipulated under Annex 8 to the Convention on International Civil Aviation. The State of Design, which is the country where the aircraft type was designed, has the primary responsibility for ensuring the continuing airworthiness of the aircraft type. This responsibility includes providing necessary information to the State of Registry, which is the country where the individual aircraft is registered. The State of Registry, in turn, must develop or adopt requirements to ensure the continuing airworthiness of the aircraft within its jurisdiction. When a State of Design issues an AD for a type of aircraft on the Australian Register, CASA must assess this information and, if deemed appropriate, issue an Australian AD to mandate the requirements of the State of Design. The Civil Aviation Safety Regulations 1998 and the Civil Aviation Act 1988 impose specific obligations on CASA and other parties involved in the regulation and operation of aircraft. CASA must ensure that ADs issued by the State of Design are assessed and, if necessary, translated into Australian ADs to maintain safety standards. This involves rigorous evaluation to ensure that the ADs are effective and necessary for the safety of air navigation. Operators of affected aircraft must comply with the ADs by taking the necessary actions specified in the directives to address any identified safety issues. Failure to comply with these requirements can lead to serious safety risks and may result in penalties under the Civil Aviation Act 1988 and associated regulations. The consequences for non-compliance with airworthiness directives can be severe. Under the Civil Aviation Act 1988, offences related to airworthiness may result in both civil and criminal penalties. For example, section 43 of the Act provides for fines and imprisonment for individuals or corporations that fail to comply with airworthiness requirements. The maximum penalties can vary depending on the severity of the breach, but they may include substantial fines and imprisonment for directors or responsible officers. Additionally, aircraft that do not comply with ADs may be grounded or restricted from flight, which can have significant operational and financial implications for operators. The Civil Aviation Safety Regulations 1998 further detail specific penalties and enforcement mechanisms to ensure adherence to airworthiness standards.

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Sourced from the Federal Register of Legislation at 26 August 2026. For the latest information on Australian Government law please go to https://www.legislation.gov.au.