AD/BEECH 77/12 - Engine Mount Assembly and Engine Control Linkage - CANCELLED

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Legislation au F2008L01749 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.

CASA issued AD/BEECH 77/12, affecting Beech 77 model aircraft in 1983.  CASA has reviewed this AD and as a result has decided to cancel it.  The cancellation will become effective on 3 July 2008.  No replacement AD is required, as all affected aircraft would have been modified long ago.

No consultation with the Australian public has taken place on this AD cancellation, because the cancellation results in a reduction of the regulatory burden.  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, Airframes 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 to ensure the safety of air navigation in Australia, empowering the Governor-General to create regulations that serve this purpose. One such regulation, 39.001 of the Civil Aviation Safety Regulations 1998, grants the Civil Aviation Safety Authority (CASA) the authority to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products. These ADs are considered legislative instruments under the Legislative Instruments Act 2003. The aim of this regulation is to align with international standards, particularly Annex 8 to the Convention on International Civil Aviation, which mandates the State of Design to ensure the continuing airworthiness of an aircraft type, a responsibility that CASA fulfills on behalf of Australia. In line with these international standards, CASA issued AD/BEECH 77/12 in 1983 for Beech 77 model aircraft, but has since reviewed and decided to cancel this directive. The cancellation, effective from 3 July 2008, does not necessitate a replacement as the affected aircraft would have been modified long ago. This decision was made without public consultation as it reduces regulatory burden, and the Office of Best Practice Regulation has confirmed that a Regulatory Impact Statement is not required. The cancellation was authorised by the Manager, Airframes in the Airworthiness Engineering Branch, on behalf of CASA, in accordance with the Civil Aviation Act.

Scope and Application

The Civil Aviation Act 1988, supplemented by the Civil Aviation Safety Regulations 1998, provides a comprehensive framework for the regulation of civil aviation in Australia, ensuring the safety of air navigation and the continuing airworthiness of aircraft. Under section 98 of the Act, the Governor-General is empowered to make regulations for the safety of air navigation, while regulation 39.001 specifically allows the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for particular types of aircraft or aeronautical products. These ADs are legislative instruments, subject to disallowance and review under the Acts Interpretation Act 1901 and the Legislative Instruments Act 2003. The scope of the Act applies to all persons and entities involved in civil aviation within Australia, including aircraft operators, manufacturers, and maintenance providers. Geographically, the Act has a national reach, as CASA acts as Australia’s national airworthiness authority, ensuring compliance with international standards set forth by the International Civil Aviation Organization (ICAO). However, the Act does not apply to military aircraft or to foreign-registered aircraft while they are outside of Australia. Additionally, certain ADs may be subject to exclusions or exemptions if specific conditions are met, though the primary aim is to maintain the highest safety standards. The authority to issue ADs is further extended through subordinate instruments, which may provide additional specific requirements or conditions for particular aircraft types or aeronautical products.

Key Provisions

The Civil Aviation Act 1988, through section 98, authorises the Governor-General to make regulations for the safety of air navigation. Section 39.001 of the Civil Aviation Safety Regulations 1998 empowers the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products. Subregulation 39.001(5) of these Regulations classifies ADs as disallowable instruments under section 46A of the Acts Interpretation Act 1901, thereby rendering them legislative instruments as per section 6 of the Legislative Instruments Act 2003. ADs are integral to maintaining the continuing airworthiness of aircraft, a responsibility primarily held by the State of Design, while the State of Registry ensures the airworthiness of individual aircraft. The obligations under these provisions require CASA to assess and, if necessary, issue ADs when a State of Design mandates safety requirements for aircraft types registered in Australia. This involves a rigorous review process to ensure that the directives align with international standards and effectively mitigate safety risks. The State of Registry must also develop or adopt requirements to maintain the continuing airworthiness of aircraft, ensuring compliance with ADs issued by the State of Design. These obligations underscore the collaborative effort between different states to uphold high safety standards in civil aviation. Non-compliance with ADs can result in severe consequences. Under the Civil Aviation Act 1988, violations may lead to both civil and criminal penalties. For instance, operating an aircraft that does not meet the requirements of an AD can be considered an offence, potentially resulting in fines or imprisonment. The exact penalties vary depending on the severity of the breach, but the overarching aim is to enforce strict adherence to safety regulations to protect public safety. In summary, the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 establish a robust framework for issuing and enforcing airworthiness directives. These provisions mandate CASA to issue ADs in alignment with international standards, ensuring the safety and airworthiness of aircraft. Failure to comply with these directives can lead to significant civil and criminal penalties, underscoring the importance of adhering to these regulations.

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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.