AD/RAD/25 - Bayside VHF Transceiver Modification or Retirement - CANCELLED

Overview

The Civil Aviation Act 1988, enacted by the Australian Parliament, establishes a framework for the regulation of civil aviation within Australia, with a primary focus on ensuring the safety of air navigation. The Act authorises the Governor-General to create regulations under section 98, which are pivotal in managing airworthiness directives (ADs) as outlined in regulation 39.001 of the Civil Aviation Safety Regulations 1998. This regulatory mechanism is essential for maintaining the safety standards of aircraft and aeronautical products. The Civil Aviation Safety Authority (CASA) issues these ADs, which are legislative instruments subject to disallowance under the Acts Interpretation Act 1901 and are governed by the Legislative Instruments Act 2003. The cancellation of AD/RAD/25, issued concerning Bayside BEI-990 series VHF Transceivers, exemplifies CASA’s role in ensuring that Australian airworthiness directives align with international standards set by the Convention on International Civil Aviation. The decision to cancel this AD was made without public consultation, as mandated by the obligations under the Convention, and was determined not to require a Regulatory Impact Statement by the Office of Best Practice Regulation.

Scope and Application

The Civil Aviation Act 1988, supplemented by the Civil Aviation Safety Regulations 1998, establishes a framework for ensuring the safety of air navigation, with particular emphasis on the continuing airworthiness of aircraft and aeronautical products. Under this legislative framework, the Civil Aviation Safety Authority (CASA) is empowered to issue airworthiness directives (ADs) which are legislative instruments that mandate safety standards and practices for specific types of aircraft or aeronautical products. These directives apply to aircraft registered in Australia and are intended to ensure compliance with both national and international safety standards. The ADs issued by CASA are informed by obligations under the Convention on International Civil Aviation and are aligned with the responsibilities of the State of Design and the State of Registry. The issuance, amendment, or cancellation of these directives, such as AD/RAD/25 affecting Bayside BEI-990 series VHF Transceivers, is conducted by CASA in accordance with the specific provisions of the Act and Regulations, and they are subject to disallowance under the Acts Interpretation Act 1901. The legislative process for these directives does not require public consultation or a Regulatory Impact Statement as determined by the Office of Best Practice Regulation. The ADs, therefore, extend their reach to all entities involved in the design, manufacture, and operation of aircraft within the Australian jurisdiction, ensuring that safety standards are uniformly upheld across the aviation industry.

Key Provisions

The Civil Aviation Act 1988, specifically section 98, empowers the Governor-General to enact regulations aimed at ensuring the safety of air navigation. Under this authority, regulation 39.001 of the Civil Aviation Safety Regulations 1998 allows the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for certain types of aircraft or aeronautical products. Subregulation 39.001(5) further clarifies that an AD is a disallowable instrument, thus constituting a legislative instrument as per section 6 of the Legislative Instruments Act 2003. ADs serve as a critical mechanism for maintaining the continuing airworthiness of aircraft types, mandated by Annex 8 to the Convention on International Civil Aviation. This international agreement assigns the State of Design, the country where the aircraft was originally designed, the responsibility for ensuring the ongoing airworthiness of the aircraft type and requires it to provide necessary information to States of Registry. Conversely, the State of Registry is tasked with ensuring the continuing airworthiness of individual aircraft, a duty that includes developing or adopting appropriate requirements. Under this regulatory framework, when the State of Design issues an AD, CASA, as Australia's national airworthiness authority, must evaluate the directive and, if necessary, issue an Australian AD to enforce the requirements of the State of Design. This process ensures that Australian-registered aircraft comply with international safety standards. In the case of AD/RAD/25, which pertained to Bayside BEI-990 series VHF Transceivers, CASA assessed the directive and determined that it was no longer necessary because the unsafe condition it addressed had been resolved. Consequently, CASA cancelled Australian AD/RAD/25, effective from 9 April 2009. This cancellation indicates that no replacement AD was required as the identified safety issue no longer existed. Given that the cancellation of the AD was due to Australia's obligations under the Convention on International Civil Aviation, there was no requirement for public consultation on this matter. Additionally, the Office of Best Practice Regulation has determined that ADs do not necessitate a Regulatory Impact Statement. The AD was issued by the Manager, Systems and New Technologies, in the Airworthiness Engineering Group, on behalf of CASA, in accordance with subsection 84A(2) of the Civil Aviation Act 1988. This process ensures that CASA adheres to the legal framework while maintaining the highest safety standards in civil aviation.