AD/R44/22 Amdt 1 - Main Rotor Blade Leading Edge and Tip Cap Area Skin

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Legislation au F2008L00526 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 U.S. FAA issued AD 2007-26-12 and an Alternate Method of Compliance (AMOC), affecting Robinson Helicopter Company R44 aircraft, in 2007.  The US is the State of Design for the R44 type.  As a result of a request from industry, CASA has amended the equivalent Australian AD to include the AMOC and clarify the inspection requirements.  The amended AD, AD/R44/22 Amendment 1, will become effective on 29 February 2008.  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 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. This legislation empowers the Governor-General to create regulations that contribute to the safety of air navigation. Specifically, under section 98, the Act allows for the creation of regulations that are essential for maintaining the safety of air navigation. In 1998, the Civil Aviation Safety Regulations were introduced to further delineate the procedures and requirements for airworthiness, including the issuance of airworthiness directives by the Civil Aviation Safety Authority (CASA). These directives serve as a legislative instrument and are intended to address issues concerning the continuing airworthiness of aircraft, in line with international standards set by the International Civil Aviation Organization (ICAO). The Act aims to ensure that aircraft remain in a condition that is safe for operation, thereby protecting public safety and adhering to international obligations.

Scope and Application

The Civil Aviation Safety Regulations 1998, under the Civil Aviation Act 1988, provide the framework for the issuance of airworthiness directives (ADs) to ensure the continuing airworthiness of aircraft registered in Australia. Regulation 39.001 empowers the Civil Aviation Safety Authority (CASA) to issue these directives for specific types of aircraft or aeronautical products. These directives are legislative instruments, subject to disallowance and review under the Acts Interpretation Act 1901 and the Legislative Instruments Act 2003. The application of these ADs extends to any person or entity operating aircraft within Australia and aligns with international standards as outlined in Annex 8 to the Convention on International Civil Aviation. The State of Registry, in this case CASA, must ensure that all aircraft under its purview meet the continuing airworthiness requirements specified by the ADs. The ADs are issued in response to international safety mandates and do not require public consultation or a Regulatory Impact Statement, reflecting their technical and safety-focused nature. This specific AD, AD/R44/22 Amendment 1, directly addresses the safety requirements for Robinson Helicopter Company R44 aircraft, updating previous directives to incorporate an Alternate Method of Compliance as issued by the U.S. Federal Aviation Administration.

Key Provisions

The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 establish a framework for ensuring the safety of air navigation, including the issuance of airworthiness directives (ADs). According to section 98 of the Civil Aviation Act 1988, the Governor-General can make regulations 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 ADs for specific types of aircraft or aeronautical products. These ADs are considered legislative instruments, as outlined in the Legislative Instruments Act 2003. Under the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998, CASA is mandated to issue airworthiness directives in response to directives issued by the State of Design, ensuring that Australian aircraft meet international safety standards. This is particularly relevant under Annex 8 to the Convention on International Civil Aviation, which stipulates that the State of Design holds the primary responsibility for the continuing airworthiness of aircraft types and must share necessary information with the States of Registry. The State of Registry, in turn, must implement the requirements set forth in the ADs to maintain the airworthiness of individual aircraft. CASA's role includes assessing information from the State of Design and issuing corresponding Australian ADs to enforce these requirements. The obligations imposed on parties by the ADs are clear and specific. For instance, AD 2007-26-12 and its Alternate Method of Compliance (AMOC) issued by the U.S. Federal Aviation Administration (FAA) in 2007 pertain to the Robinson Helicopter Company R44 aircraft. CASA amended the equivalent Australian AD to incorporate the AMOC and clarify inspection requirements. This AD, AD/R44/22 Amendment 1, will take effect on 29 February 2008, replacing the previous version. The ADs require the affected aircraft operators to comply with the specified maintenance and inspection procedures to ensure the aircraft remain airworthy. Failure to comply with ADs can lead to serious consequences. While the Civil Aviation Safety Regulations 1998 do not specify explicit penalties for non-compliance, non-compliance with ADs can result in significant legal and safety repercussions. CASA has the authority to take enforcement actions against non-compliant aircraft operators, which may include grounding the aircraft, imposing fines, or pursuing legal action. The safety of air navigation is paramount, and adherence to ADs is critical to maintaining these high standards.

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Aviation Law
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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.