AD/BEECH 90/12 - Ammeter Lead Circuit Protection - CANCELLED

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Legislation au F2008L01761 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/BEECH 90/12 affecting Beechcraft 90 and 65-90 model aircraft.  CASA has assessed this AD and as a result has cancelled Australian AD/BEECH 90/12.  The cancellation will become effective on 3 July 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, 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, enacted by the Commonwealth Parliament, was introduced to establish a comprehensive legal framework for ensuring the safety and efficiency of civil aviation in Australia. The Act aims to regulate the operations of aircraft, the licensing of aviation personnel, and the maintenance of aircraft airworthiness, among other things, to safeguard the interests of the public and other stakeholders in the aviation industry. Under this Act, the Civil Aviation Safety Regulations 1998 were made to provide detailed rules and standards for ensuring the safety of air navigation. One of the key regulatory tools provided by the Regulations is the issuance of airworthiness directives (ADs) by the Civil Aviation Safety Authority (CASA), which serves as Australia's national airworthiness authority. The ADs are legislative instruments used to mandate compliance with safety standards and address safety issues identified in specific types of aircraft or aeronautical products. In accordance with international obligations under the Convention on International Civil Aviation, CASA is responsible for assessing and, if necessary, issuing Australian ADs based on the continuing airworthiness information provided by the State of Design or other ICAO Contracting States.

Scope and Application

The Civil Aviation Act 1988, supported by the Civil Aviation Safety Regulations 1998, provides the legal framework for the issuance of airworthiness directives (ADs) by the Civil Aviation Safety Authority (CASA). Specifically, regulation 39.001 of the Civil Aviation Safety Regulations 1998 empowers CASA to issue ADs concerning certain types of aircraft or aeronautical products. These directives are considered legislative instruments under section 6 of the Legislative Instruments Act 2003, and can be disallowed in accordance with section 46A of the Acts Interpretation Act 1901. The issuance of ADs is mandated by Annex 8 to the Convention on International Civil Aviation, which stipulates that the State of Design has the overarching responsibility for the continuing airworthiness of aircraft types, while the State of Registry must ensure that aircraft under its jurisdiction remain airworthy. In the context of Australia, CASA, as the national airworthiness authority, is required to assess information from the State of Design and, if necessary, issue an Australian AD to enforce the relevant safety requirements. The AD/BEECH 90/12, which affected Beechcraft 90 and 65-90 model aircraft, has been cancelled by CASA due to the resolution of the unsafe condition identified, thus rendering a replacement AD unnecessary.

Key Provisions

The Civil Aviation Act 1988, as amended, includes provisions that enable the Governor-General to make regulations for air navigation safety (section 98). In accordance with regulation 39.001 of the Civil Aviation Safety Regulations 1998, the Civil Aviation Safety Authority (CASA) is empowered to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products. This regulatory mechanism is critical for ensuring the safety and airworthiness of aircraft within Australia. Additionally, subregulation 39.001(5) stipulates that ADs are disallowable instruments under section 46A of the Acts Interpretation Act 1901, thus classifying them as legislative instruments in line with section 6 of the Legislative Instruments Act 2003. The obligations under this regulatory framework require CASA to act diligently in assessing any ADs issued by the State of Design for aircraft types registered in Australia. This responsibility entails evaluating the safety information provided by the State of Design and, if deemed necessary, issuing corresponding Australian ADs to enforce the required safety measures. The State of Registry, which is the State where the aircraft is registered, must also ensure the ongoing airworthiness of the aircraft by adhering to the ADs issued, whether by their own authority or by another State of Design. Failure to comply with an AD may result in serious consequences. Under the Civil Aviation Act 1988, non-compliance with an AD can lead to various legal repercussions. For instance, if an aircraft is operated in a manner that contravenes the terms of an AD, the operator may be subject to enforcement actions. The Act does not explicitly detail specific penalties for non-compliance; however, general aviation regulations and related statutes may impose fines, imprisonment, or both, depending on the severity and nature of the breach. It is critical for aircraft operators to ensure strict adherence to ADs to avoid such legal ramifications. Moreover, the regulatory process for ADs, including their issuance and cancellation, follows specific protocols. For instance, CASA’s assessment and subsequent cancellation of Australian AD/BEECH 90/12, affecting Beechcraft 90 and 65-90 model aircraft, demonstrates this process. The AD was cancelled because the unsafe condition it addressed no longer existed, and no replacement AD was necessary. This cancellation was made without public consultation, as per the obligations under the Convention on International Civil Aviation, and was determined not to require a Regulatory Impact Statement. Such measures ensure that ADs remain a responsive and effective tool for maintaining air safety.

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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.