CASA ADCX 017/13 - Revocation of Airworthiness Directives

Overview

The Civil Aviation Safety Regulations 1998 were enacted by the Australian Parliament to ensure the safety of air navigation and the continuing airworthiness of aircraft within Australia. These regulations allow the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific kinds of aircraft or aeronautical products, aligning with the requirements set out in the Civil Aviation Act 1988. In 2013, CASA issued an instrument revoking two ADs, AD/DHC-8/150 and AD/B737/318, due to their requirements being superseded by updated ADs issued by the States of Design, namely Transport Canada and the United States Federal Aviation Administration. The revocation was made under the authority conferred by the Civil Aviation Safety Regulations 1998 and the Civil Aviation Act 1988, with the policy objective being to streamline and reduce the regulatory burden by removing redundant directives. No public consultation was deemed necessary as the revoked ADs were no longer in force in their originating countries and retaining them would have been purposeless. The revocation also aligns with international standards as outlined in Annex 8 to the Convention on International Civil Aviation, which assigns responsibility for continuing airworthiness to the States of Design and Registry.

Scope and Application

The Civil Aviation Safety Regulations 1998, as amended by the instrument CASA ADCX 017/13, concern the revocation of specific airworthiness directives that have been superseded by newer directives issued by foreign regulatory authorities. These regulations apply to all aircraft registered in Australia, including both private and commercial aircraft, and to aeronautical products that require compliance with airworthiness standards. The revocation of AD/DHC-8/150 and AD/B737/318, as detailed in the instrument, pertains to the maintenance and inspection requirements for specific types of aircraft and products. The regulations are made under the authority of the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998, which empower the Civil Aviation Safety Authority (CASA) to issue airworthiness directives in the interest of air navigation safety. The instrument specifically revokes directives that are no longer applicable due to newer, more current directives from the State of Design, thereby reducing redundancy and regulatory burden. The instrument does not provide for any exemptions or thresholds and is applicable nationally across Australia. Any further amendments or extensions of these regulations would require CASA to issue additional directives or amendments, in accordance with the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998.

Key Provisions

The key operative sections of the Civil Aviation Safety Regulations 1998 (CASR 1998) involved in this legislative instrument are sections 39.001 and 39.001A, which allow the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products. Section 98 of the Civil Aviation Act 1988 authorises the Governor-General to make regulations for the Act, and under subsections 98(5B) and (5BA), an AD is a legislative instrument unless it is expressed to apply to a particular person, aircraft, or aeronautical product. This instrument revokes AD/DHC-8/150 and AD/B737/318, which have been superseded by newer directives issued by Transport Canada and the United States Federal Aviation Administration, respectively. The obligations imposed by this legislation on the parties it governs primarily involve compliance with the airworthiness directives that remain in effect. The State of Design has an obligation to provide necessary information to ensure the continuing airworthiness of an aircraft type, while the State of Registry must develop or adopt requirements to ensure the continuing airworthiness of aircraft. CASA, as Australia’s national airworthiness authority, must accept ADs issued by the State of Design, but it may grant an exclusion or approve an alternative means of compliance. The revocation of the two ADs reduces the regulatory burden by removing outdated directives that have been superseded by newer, more current directives. The revocation of these ADs does not create any new offences or penalties; rather, it removes outdated regulatory obligations. The superseded ADs no longer apply to aircraft registered in Australia, and their removal from the regulatory framework helps streamline compliance requirements for operators and maintenance personnel. The revocation is not expected to have any significant civil or criminal consequences for breach, as the ADs are no longer in force. However, operators and maintenance personnel must still comply with all applicable ADs and any other relevant regulations to ensure the continuing airworthiness of their aircraft. This legislative instrument has been crafted to ensure that the Australian aviation regulatory framework remains current and efficient. By revoking the superseded ADs, CASA reduces unnecessary regulatory burden while maintaining high safety standards. The decision not to consult the public or prepare a Regulatory Impact Statement was based on the understanding that these ADs were no longer in force in their respective States of Design and that their retention would serve no purpose. This approach helps streamline the regulatory process and ensures that Australian aviation safety regulations are aligned with international standards.