AD/HU 269/94 - Main Rotor Pitch Bearing Snap Ring Lockwasher - CANCELLED

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Legislation au F2009L01525 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/HU 269/94 affecting Schweizer (Hughes) 269 series Helicopters.  CASA has assessed this AD and as a result has cancelled Australian AD/HU 269/94.  The cancellation will become effective on 7 May 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 Commonwealth Parliament, establishes the framework for the regulation of civil aviation in Australia, with a focus on ensuring the safety of air navigation. The Act grants the Governor-General the authority to create regulations under section 98 to support these objectives, and it is through these regulations that the Civil Aviation Safety Regulations 1998 were established. These regulations empower the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products under regulation 39.001. This legislative mechanism ensures that CASA can mandate safety requirements in response to identified issues, thereby maintaining the high safety standards required for civil aviation. The ADs are considered legislative instruments under the Legislative Instruments Act 2003, reflecting their importance and the rigorous process behind their issuance.

Scope and Application

The Civil Aviation Act 1988, supplemented by the Civil Aviation Safety Regulations 1998, empowers the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specified types of aircraft or aeronautical products. These directives are legislative instruments under the Acts Interpretation Act 1901 and the Legislative Instruments Act 2003. The application of ADs is integral to fulfilling Australia's obligations under Annex 8 to the Convention on International Civil Aviation, where the State of Design must provide information to ensure the continuing airworthiness of aircraft types. Consequently, CASA, as the national airworthiness authority, is tasked with assessing and, if necessary, issuing Australian ADs to enforce the requirements set forth by the State of Design. This process is critical for ensuring the safety of air navigation within Australia and aligns with international standards. The issuance, assessment, and cancellation of ADs are conducted by CASA, reflecting the regulatory framework designed to maintain the highest standards of aviation safety.

Key Provisions

The Civil Aviation Act 1988 (section 98) empowers the Governor-General to create regulations that are vital for the safety of air navigation, while regulation 39.001 of the Civil Aviation Safety Regulations 1998 allows the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific kinds of aircraft or aeronautical products. These ADs are considered legislative instruments under section 46A of the Acts Interpretation Act 1901 and section 6 of the Legislative Instruments Act 2003. These directives are crucial for maintaining the airworthiness of aircraft types, as outlined in Annex 8 of the Convention on International Civil Aviation, which assigns the State of Design overall responsibility for the continuing airworthiness of an aircraft type, necessitating the provision of necessary information to States of Registry. The obligations imposed by these regulations include the responsibility of the State of Design to ensure the continuing airworthiness of aircraft types, which involves providing necessary information to States of Registry. The State of Registry, in turn, must develop or adopt requirements to ensure the airworthiness of aircraft registered within its jurisdiction. For Australia, CASA plays a pivotal role as the national airworthiness authority. When a State of Design issues an AD against a type of aircraft registered in Australia, CASA is obligated to assess this information and, if necessary, issue an Australian AD to mandate the requirements of the State of Design. In the case of the AD/HU 269/94 issued by CASA, which affected Schweizer (Hughes) 269 series helicopters, CASA has assessed the directive and subsequently cancelled the Australian AD/HU 269/94 due to the unsafe condition no longer existing. This cancellation, which became effective on 7 May 2009, does not require a replacement AD as the issue has been resolved. Due to Australia's obligations under the Convention on International Civil Aviation, no consultation with the Australian public was necessary regarding this cancellation, and the Office of Best Practice Regulation has determined that ADs do not require a Regulatory Impact Statement. The AD was 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. Regarding the enforcement and consequences, breaches of airworthiness directives can result in serious civil and criminal penalties. Under the Civil Aviation Act 1988, the Civil Aviation Safety Authority has the power to issue fines and sanctions for non-compliance with airworthiness directives. The maximum penalty for individuals found guilty of a breach can include substantial fines and, in severe cases, imprisonment. For corporations, the penalties can be even more severe, reflecting the critical nature of ensuring the safety of air navigation. These provisions underscore the importance of adhering to airworthiness directives to maintain the highest safety standards in aviation.

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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.