AD/BELL 205/15 - Tail Rotor Hub Assembly - Inspection - CANCELLED

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Legislation au F2008L00231 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/BELL 205/15, affecting Bell 205 model helicopters in 1973.  CASA has reviewed this AD and as a result has decided to cancel it.  The cancellation will become effective on 14 February 2008.  No replacement AD is required, as the technical requirements are now included in the helicopter maintenance manuals.

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 and efficiency of civil aviation in Australia. One of its key provisions allows the Governor-General to make regulations for the purposes of the Act, which includes the issuance of airworthiness directives to maintain the safety of air navigation. The Civil Aviation Safety Regulations 1998 further detail the regulatory framework, with regulation 39.001 authorising the Civil Aviation Safety Authority (CASA) to issue airworthiness directives for specific kinds of aircraft or aeronautical products. These directives are considered legislative instruments under the Acts Interpretation Act 1901 and the Legislative Instruments Act 2003. The objective of these regulations is to align with international standards set by the International Civil Aviation Organization (ICAO), ensuring that Australia’s regulatory practices support the global framework for airworthiness.

Scope and Application

The Civil Aviation Act 1988, complemented by the Civil Aviation Safety Regulations 1998, establishes the framework within which airworthiness directives (ADs) are issued to ensure the safety of air navigation. Specifically, regulation 39.001 of the Civil Aviation Safety Regulations 1998 empowers the Civil Aviation Safety Authority (CASA) to issue these directives for specified kinds of aircraft or aeronautical products. Under the authority granted by section 98 of the Civil Aviation Act 1988, the Governor-General may make regulations for the Act's purposes and in the interests of air navigation safety. This legislative instrument is subject to disallowance and is classified as a legislative instrument under the Legislative Instruments Act 2003. The ADs serve as a crucial mechanism for maintaining the continuing airworthiness of aircraft as outlined in Annex 8 to the Convention on International Civil Aviation, with the State of Design bearing primary responsibility and the State of Registry ensuring compliance with airworthiness requirements. CASA, as Australia’s national airworthiness authority, plays a pivotal role in issuing these directives, ensuring that they align with international standards and obligations.

Key Provisions

The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 provide the framework for the issuance and enforcement of airworthiness directives (ADs) in Australia, ensuring the safety of air navigation. Section 98 of the Act empowers the Governor-General to make regulations for air navigation safety, while regulation 39.001 of the Regulations allows the Civil Aviation Safety Authority (CASA) to issue ADs for specific types of aircraft or aeronautical products (Civil Aviation Safety Regulations 1998, 39.001). An AD is a legislative instrument, which is disallowable under section 46A of the Acts Interpretation Act 1901 and must comply with the Legislative Instruments Act 2003 (Civil Aviation Safety Regulations 1998, 39.001(5)). The State of Design, which is responsible for the continuing airworthiness of an aircraft type, must provide necessary information to the States of Registry to ensure compliance with Annex 8 to the Convention on International Civil Aviation. The obligations under these regulations place the responsibility for ensuring the continuing airworthiness of aircraft with the State of Registry, which must develop or adopt requirements to maintain airworthiness (Civil Aviation Safety Regulations 1998, 39.001). In Australia, CASA acts as the national airworthiness authority and must assess ADs issued by the State of Design and, if appropriate, issue Australian ADs to enforce the requirements. This process ensures that all aircraft on the Australian Register meet the necessary safety standards and comply with international conventions. CASA issued AD/BELL 205/15, which affected Bell 205 model helicopters manufactured in 1973. After reviewing the AD, CASA decided to cancel it, effective 14 February 2008, as the technical requirements are now included in the helicopter maintenance manuals. No public consultation was necessary because the cancellation reduced the regulatory burden, and the Office of Best Practice Regulation determined that ADs do not require a Regulatory Impact Statement. Failure to comply with an AD can result in significant consequences. The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 impose strict obligations on the parties they govern, including manufacturers, operators, and maintenance providers, to ensure that they adhere to the requirements outlined in ADs. Non-compliance with ADs can result in serious safety risks, and CASA has the authority to take enforcement actions against those who fail to comply. Potential penalties for non-compliance may include fines, suspension or revocation of airworthiness certificates, and other legal actions. These measures are designed to enforce safety standards and protect the public from the risks associated with non-compliant aircraft. The AD was made by the Manager, Airframes in the Airworthiness Engineering Branch, on behalf of CASA, in accordance with subsection 84A(2) of the Act (Civil Aviation Act 1988, 84A(2)).

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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.