AD/B737/201 Amdt 2 - Rudder Control System

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Legislation au F2007L01575 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 US FAA issued AD 2007-03-07, affecting Boeing B737 aircraft, in 2007.  The USA is the State of Design for this type.  In response to this FAA AD, CASA issued AD/B737/201 Amendment 1. However, this document contained a minor typographical error, so CASA has amended the Australian AD to correct the problem.  The amended AD, AD/B737/201 Amendment 2, will become effective on 5 July 2007.  This AD cancels and replaces the previous issue.

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 Regulatory Review has determined that ADs do not require a Regulatory Impact Statement.

The AD has been made by the Manager, Airframes in the Manufacturing, Certification and New Technologies Office, on behalf of CASA, in accordance with subsection 84A (2) of the Act.

 

Overview

The Civil Aviation Act 1988, enacted by the Parliament of Australia, aims to ensure the safety of air navigation and civil aviation in Australia. The Act provides the framework for the regulation of civil aviation safety, including the issuance of airworthiness directives (ADs) by the Civil Aviation Safety Authority (CASA). The Civil Aviation Safety Regulations 1998, made under section 98 of the Act, further specify the processes for issuing ADs. The ADs are legislative instruments that mandate compliance with airworthiness standards and are crucial for maintaining the safety of aircraft. The Civil Aviation Act 1988 and associated regulations address the need for standardised safety measures in civil aviation, ensuring that aircraft meet necessary safety standards to protect passengers and crew. The policy objective of these regulations is to align Australian aviation safety practices with international standards, particularly under the Convention on International Civil Aviation.

Scope and Application

The Civil Aviation Safety Regulations 1998, under section 39.001, empower the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific kinds of aircraft or aeronautical products, with these directives being legislative instruments under the Acts Interpretation Act 1901. Such ADs are essential for maintaining the continuing airworthiness of aircraft, aligning with international standards under Annex 8 to the Convention on International Civil Aviation. In this context, the State of Design holds the primary responsibility for providing necessary information to ensure an aircraft type's airworthiness, while the State of Registry must adopt or develop requirements to uphold these standards. For instance, in response to a United States Federal Aviation Administration (FAA) AD concerning Boeing B737 aircraft, CASA issued an amended AD to correct a typographical error in the initial Australian directive. This AD, issued under the Civil Aviation Act 1988 and in line with Australia’s obligations under the Convention, does not require public consultation or a Regulatory Impact Statement, reflecting its technical and regulatory nature.

Key Provisions

The Civil Aviation Act 1988, under section 98, grants the Governor-General the authority to enact regulations that serve the Act's purpose and 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 airworthiness directives (ADs) for specific types of aircraft or aeronautical products. These directives are significant legislative instruments, as stipulated in subregulation 39.001(5) and section 6 of the Legislative Instruments Act 2003. The obligations imposed by these ADs are stringent and aimed at ensuring the continued safety and airworthiness of aircraft. For instance, the State of Design—in this case, the United States for Boeing B737 aircraft—is responsible for the overall airworthiness of the aircraft type and must provide any necessary information to the States of Registry to maintain airworthiness. Australia, as a State of Registry, must develop or adopt requirements to ensure the continuing airworthiness of aircraft registered within its territory. CASA, as Australia's national airworthiness authority, is mandated to assess any ADs issued by the State of Design and, if necessary, issue corresponding Australian ADs to enforce those requirements. This was evident in the issuance of AD/B737/201 Amendment 2, which corrected a typographical error in the previous AD/B737/201 Amendment 1 and became effective on 5 July 2007. Failure to comply with ADs can result in significant legal consequences. The Act does not explicitly outline the penalties for non-compliance, but the overarching legislative framework suggests severe repercussions. Civil penalties can include fines and sanctions, while criminal penalties may entail imprisonment, depending on the severity and impact of the non-compliance on aviation safety. Additionally, the non-compliance can lead to operational restrictions or even the grounding of aircraft, severely affecting the operations of airlines and potentially resulting in public safety risks. CASA enforces these regulations rigorously to uphold the high safety standards required in the aviation industry.

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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.