AD/J4100/10 - Forward Fuselage Stn 4 to Stn 8 Diaphragms

Administered by Department of Infrastructure, Transport, Regional Development, Communications, Sport and the Arts

Legislation au F2008L00499 In force Legislative Instrument

Legislation content

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 UK CAA has issued AD 007-12-96 affecting BAe Jetstream 4100 model aircraft.  The UK is the State of Design for this type.  CASA has assessed this AD and has issued Australian AD/J4100/10, which will become effective on 20 February 2008.

As this AD is issued because of Australia’s obligations under Convention on International Civil Aviation, and because it is issued in response to an AD raised by the relevant State of Design, no consultation of the Australian public has taken place on this AD.  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, enacted by the Australian Parliament, addresses the overarching legal framework for ensuring the safety and efficiency of civil aviation in Australia. This legislation is essential for the regulation and oversight of civil aviation activities, including the issuance of airworthiness directives (ADs) as specified under section 98. The ADs are integral to maintaining the continuing airworthiness of aircraft, a responsibility mandated by the Convention on International Civil Aviation and implemented through the Civil Aviation Safety Regulations 1998. The policy objective behind these regulations is to ensure that Australian aviation authorities, such as the Civil Aviation Safety Authority (CASA), can effectively respond to international safety standards and directives, thereby safeguarding the safety of air navigation. In the context of the ADs, the aim is to harmonise Australia's aviation safety measures with international practices, ensuring that aircraft registered in Australia meet the necessary safety standards.

Scope and Application

The Civil Aviation Safety Regulations 1998, under the Civil Aviation Act 1988, grant the Civil Aviation Safety Authority (CASA) the authority to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products. This regulatory framework ensures that the safety standards set forth by the State of Design for aircraft types are effectively communicated and implemented in Australia. ADs serve as a crucial mechanism for maintaining the continuing airworthiness of aircraft, a responsibility that ultimately lies with the State of Registry for individual aircraft. These directives are issued in accordance with Annex 8 of the Convention on International Civil Aviation, which mandates that the State of Design provide necessary information to ensure an aircraft type's continuing airworthiness. CASA, as Australia's national airworthiness authority, is tasked with assessing these directives and, when necessary, issuing corresponding Australian ADs to enforce the requirements set by the State of Design. This process ensures that Australian-registered aircraft adhere to international safety standards and practices.

Key Provisions

The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 provide the framework for the issuance of airworthiness directives (ADs) under section 98 and regulation 39.001, respectively. ADs are legislative instruments that are crucial for ensuring the continuing airworthiness of aircraft types and aeronautical products. The State of Design, which is responsible for the initial airworthiness of an aircraft type, must provide necessary information to the State of Registry to maintain this airworthiness. In Australia, the Civil Aviation Safety Authority (CASA) acts as the national airworthiness authority and must assess information from the State of Design, issuing an Australian AD if appropriate. Under the Civil Aviation Safety Regulations 1998, CASA is empowered to issue ADs that mandate specific requirements for aircraft types or aeronautical products registered in Australia. This process is critical in maintaining safety standards in line with international conventions, such as Annex 8 to the Convention on International Civil Aviation. For instance, when the UK Civil Aviation Authority issued AD 007-12-96 concerning the BAe Jetstream 4100 model, CASA evaluated this directive and subsequently issued Australian AD/J4100/10. This directive will take effect on 20 February 2008. The issuance of such ADs does not require public consultation or a Regulatory Impact Statement, as determined by the Office of Best Practice Regulation. The obligations imposed on parties governed by these regulations are significant. The State of Design must provide necessary information to ensure the continuing airworthiness of aircraft types, while the State of Registry must develop or adopt requirements to maintain airworthiness. In Australia, CASA has the duty to assess information from the State of Design and, if necessary, issue corresponding ADs. Non-compliance with these directives can result in severe safety implications, thereby making adherence to these obligations imperative. The ADs are crafted to ensure that the aircraft meet safety standards and are operated within the parameters set forth by international and domestic regulations. The consequences for non-compliance with ADs are severe. Any breach of an AD may result in the grounding of an aircraft or the imposition of fines and other penalties. Under the Civil Aviation Act 1988, the maximum penalties for non-compliance with ADs can be substantial, reflecting the critical nature of airworthiness requirements. These penalties are designed to enforce compliance and ensure that safety standards are upheld across the aviation industry. The regulatory framework thus imposes significant obligations and consequences to maintain the highest standards of aviation safety.

Legal classification tags

Area of Law
Aviation Law
Instrument
Regulation
Concepts
Definitions & Interpretation
Enforcement Powers
Regulatory Standards

Interactions

Authorises

All Versions

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.