AD/PA-28/45 - Gross Weight - Reduction - CANCELLED

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Legislation au F2008L01877 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/PA-28/45 affecting Piper PA-28 model aircraft in 1973.  CASA has reviewed this AD and as a result has decided to cancel it.  The cancellation will become effective on 3 July 2008.  No replacement AD is required, as all affected aircraft would have been inspected, and, if necessary, modified long ago.

 

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 regulate civil aviation and ensure the safety of air navigation in Australia. This Act provides the framework for the creation of regulations and directives to maintain the safety and airworthiness of aircraft. The Civil Aviation Safety Regulations 1998 were made under this Act and allow the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) to ensure that aircraft and aeronautical products comply with safety standards. The policy objective of these regulations is to provide a robust system for the continuous assessment and maintenance of airworthiness standards to protect public safety. An AD is considered a legislative instrument, as stated under the Legislative Instruments Act 2003. CASA, as Australia's national airworthiness authority, is responsible for assessing and issuing ADs based on information from the State of Design, ensuring that all aircraft on the Australian register meet the necessary safety standards.

Scope and Application

The Civil Aviation Safety Regulations 1998, under section 39.001, authorises the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) which are legislative instruments subject to disallowance. These directives are integral to ensuring the continuing airworthiness of aircraft, a responsibility that falls on the State of Design and State of Registry as per Annex 8 to the Convention on International Civil Aviation. CASA, as Australia’s national airworthiness authority, must issue Australian ADs to mandate the requirements of the State of Design when they issue such directives against types of aircraft on the Australian Register. The Civil Aviation Act 1988 and the Legislative Instruments Act 2003 provide the legislative framework for these actions. In a specific case, CASA issued and subsequently cancelled AD/PA-28/45 for Piper PA-28 model aircraft, effective from 3 July 2008, following a review that determined no further action was necessary as all affected aircraft had already been inspected and modified. This cancellation was made without public consultation due to the reduction in regulatory burden, and the Office of Best Practice Regulation has determined that ADs do not require a Regulatory Impact Statement. The AD cancellation was executed by the Manager, Airframes in the Airworthiness Engineering Branch, on behalf of CASA, in accordance with the Act.

Key Provisions

The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 together establish the framework for ensuring the safety of air navigation in Australia. Under section 98 of the Civil Aviation Act 1988, the Governor-General has the authority to make regulations for the purposes of the Act and to ensure the safety of air navigation. Regulation 39.001 of the Civil Aviation Safety Regulations 1998 empowers the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for certain types of aircraft or aeronautical products. According to subregulation 39.001(5), an AD is classified as a disallowable instrument under section 46A of the Acts Interpretation Act 1901 and is considered a legislative instrument as per section 6 of the Legislative Instruments Act 2003. These regulations mandate that the State of Design, which is the country where the aircraft type is designed, holds the primary responsibility for the continuing airworthiness of that aircraft type. The State of Design must provide all necessary information to ensure the continuing airworthiness of the aircraft type to the States of Registry, which are the countries where individual aircraft are registered. The State of Registry, in turn, is responsible for the continuing airworthiness of each individual aircraft. This includes developing or adopting requirements to ensure airworthiness. When a State of Design issues an AD, CASA, as Australia’s national airworthiness authority, must assess the information and, if necessary, issue an Australian AD to mandate the requirements of the State of Design. CASA has exercised its authority to issue ADs, such as AD/PA-28/45 affecting Piper PA-28 model aircraft in 1973. After review, CASA has decided to cancel this AD, effective from 3 July 2008. The cancellation decision was made as all affected aircraft would have been inspected and, if necessary, modified long ago, making a replacement AD unnecessary. The cancellation reduces the regulatory burden, and thus no consultation with the Australian public was deemed necessary. Additionally, the Office of Best Practice Regulation has determined that ADs do not require a Regulatory Impact Statement. The AD cancellation was made by the Manager, Airframes in the Airworthiness Engineering Branch, on behalf of CASA, in accordance with subsection 84A(2) of the Act. The Act and Regulations impose specific obligations on parties and entities they govern. The State of Design must ensure the continuing airworthiness of aircraft types and provide necessary information to States of Registry. The State of Registry must develop or adopt requirements to ensure the continuing airworthiness of individual aircraft. CASA must assess information from the State of Design and, when necessary, issue Australian ADs. Failure to comply with these obligations could lead to safety issues, potentially resulting in severe consequences for air navigation safety. The Civil Aviation Safety Regulations 1998 also detail offences, penalties, and civil or criminal consequences for breaches, though specific penalties are not mentioned in the provided text. However, it is understood that breaches can lead to significant legal ramifications, including fines and imprisonment, depending on the severity of the violation.

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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.