AD/A109/15 - Modification of Overhead Console Relay Boards - CANCELLED

Overview

The Civil Aviation Act 1988, enacted to regulate civil aviation in Australia, provides the framework for ensuring the safety of air navigation, among other things. One of the mechanisms through which this is achieved is the issuance of airworthiness directives (ADs) under regulation 39.001 of the Civil Aviation Safety Regulations 1998. These directives, which are legislative instruments, are crucial for maintaining the continuing airworthiness of aircraft as stipulated by Annex 8 to the Convention on International Civil Aviation. In the interests of public safety and in accordance with the legislative framework, the Civil Aviation Safety Authority (CASA) has the authority to issue such directives, which may subsequently be cancelled if the conditions that necessitated them no longer exist. For example, AD/A109/15, which pertained to Agusta A109 series helicopters, was cancelled by CASA on 27 August 2009, as the original unsafe condition had been resolved, thereby eliminating the need for a replacement directive. This cancellation was made without public consultation due to the reduction of the regulatory burden, and it was determined that a Regulatory Impact Statement was not required.

Scope and Application

The Civil Aviation Act 1988, supplemented by the Civil Aviation Safety Regulations 1998, provides the framework within which the Civil Aviation Safety Authority (CASA) can issue airworthiness directives (ADs). These regulations apply to all persons and entities involved in the aviation industry, particularly those who own, operate, or manufacture aircraft and aeronautical products within Australia. The geographic reach of these regulations is national, applying across all states and territories of Australia. An AD is a legislative instrument under the Legislative Instruments Act 2003, and its issuance by CASA is in line with the requirements of Annex 8 to the Convention on International Civil Aviation, which places the responsibility for continuing airworthiness on the State of Design and the State of Registry. CASA's role is to assess and, if necessary, mandate these requirements for aircraft registered in Australia. The issuance and cancellation of ADs, such as AD/A109/15 for Agusta A109 series helicopters, are determined by CASA's assessment of the safety implications and the necessity to mitigate any unsafe conditions identified. The cancellation of such an AD, which becomes effective on a specified date, signifies that the original safety concern no longer exists, and no replacement AD is needed. This process is carried out under the authority granted by the Civil Aviation Act and does not require public consultation or a Regulatory Impact Statement, as determined by the Office of Best Practice Regulation.

Key Provisions

The Civil Aviation Act 1988, in particular section 98, empowers the Governor-General to create regulations that enhance the safety of air navigation. Regulation 39.001 of the Civil Aviation Safety Regulations 1998 then allows the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products. An AD is considered a disallowable instrument under section 46A of the Acts Interpretation Act 1901 and is classified as a legislative instrument as per section 6 of the Legislative Instruments Act 2003. Obligations under this legislation primarily rest on CASA and the States of Design and Registry. CASA, as Australia's national airworthiness authority, has the responsibility to assess information from the State of Design and issue Australian ADs when necessary to ensure compliance with safety standards. States of Design and Registry are responsible for ensuring the continuing airworthiness of aircraft types and individual aircraft respectively. They must provide necessary information and develop or adopt requirements to maintain airworthiness, as outlined under Annex 8 of the Convention on International Civil Aviation. Failure to comply with ADs can lead to significant consequences. Civil Aviation Regulation 39.005 outlines that operating an aircraft in a manner that contravenes an AD is an offence. The specific penalties for such breaches are not detailed in the provided text, but typically, non-compliance can result in fines, aircraft grounding, or other enforcement actions by CASA. The severity of the penalties depends on the nature and extent of the non-compliance, but they are intended to ensure that aircraft remain safe and air navigation remains secure. In the case of AD/A109/15 affecting Agusta A109 series helicopters, CASA has decided to cancel the directive as the original unsafe condition no longer exists. This cancellation, effective from 27 August 2009, does not necessitate a replacement AD and is deemed to reduce the regulatory burden. The decision to cancel the AD did not require consultation with the Australian public, as determined by the Office of Best Practice Regulation, which concluded that ADs do not require a Regulatory Impact Statement. The AD was issued by the Manager, Future Technology and Regulatory Trends, within CASA, in accordance with the Civil Aviation Act 1988.