AD/CESSNA 337/3 - Open Wire Aerial Installation - Modification - CANCELLED

Overview

The Civil Aviation Act 1988, enacted to address issues related to the safety of air navigation, empowers the Governor-General to make regulations under section 98, ensuring the safety of air navigation. The Civil Aviation Safety Regulations 1998 further support this objective by authorising the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for certain types of aircraft or aeronautical products. This authority is crucial for maintaining the continuing airworthiness of aircraft, as outlined in Annex 8 to the Convention on International Civil Aviation, where the State of Design has the responsibility to provide necessary information to ensure the airworthiness of an aircraft type. CASA, as Australia’s national airworthiness authority, assesses this information and issues Australian ADs to enforce the requirements of the State of Design. The AD/CESSNA 337/3 affecting Cessna 337 aircraft has been cancelled by CASA due to the resolution of the unsafe condition, effective 8 May 2008, without the need for a replacement AD. This action aligns with Australia’s obligations under the Convention on International Civil Aviation and does not require public consultation or a Regulatory Impact Statement.

Scope and Application

The Civil Aviation Act 1988, as amended by the Civil Aviation Safety Regulations 1998, provides a framework for the regulation of airworthiness in Australia. Specifically, section 98 of the Act empowers the Governor-General to enact regulations that are critical for the safety of air navigation, and regulation 39.001 allows the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products. These ADs are legislative instruments that are subject to disallowance under section 46A of the Acts Interpretation Act 1901 and are governed by the Legislative Instruments Act 2003. ADs are integral to maintaining the continuing airworthiness of aircraft as mandated by Annex 8 to the Convention on International Civil Aviation, where the State of Design bears the primary responsibility for ensuring that aircraft types remain airworthy. In Australia, CASA, as the national airworthiness authority, is obligated to assess ADs issued by the State of Design and, if deemed necessary, issue corresponding Australian ADs to enforce the required safety measures. This process ensures that the continuing airworthiness of aircraft registered in Australia is upheld, aligning with international standards and obligations.

Key Provisions

The Civil Aviation Act 1988, along with the Civil Aviation Safety Regulations 1998, provides a framework for ensuring the safety of air navigation and the continuing airworthiness of aircraft. Section 98 of the Civil Aviation Act 1988 empowers the Governor-General to make regulations for the purposes of the Act, particularly in the interests of air navigation safety. Regulation 39.001 of the Civil Aviation Safety Regulations 1998 allows the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific kinds of aircraft or aeronautical products. It is important to note that these ADs are considered legislative instruments under section 6 of the Legislative Instruments Act 2003, and they are disallowable instruments under section 46A of the Acts Interpretation Act 1901. The obligations and requirements imposed by the Act and the Regulations are primarily centred around ensuring the safety and airworthiness of aircraft. The State of Design, which is the country where the aircraft type is designed, has the responsibility under Annex 8 to the Convention on International Civil Aviation to provide necessary information to ensure the continuing airworthiness of the aircraft type. The State of Registry, which is the country where the aircraft is registered, must then develop or adopt requirements to ensure the continuing airworthiness of the aircraft. 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. In terms of offences and penalties, while the text does not detail specific criminal or civil penalties for non-compliance with ADs, the consequences of failing to comply could be significant. Non-compliance with airworthiness directives can lead to severe safety risks, which could result in the grounding of aircraft, legal action against the aircraft operator, or other regulatory sanctions. Given the critical nature of airworthiness directives, compliance is not just a regulatory requirement but a fundamental safety obligation. The text also mentions the cancellation of AD/CESSNA 337/3, which affected Cessna 337 aircraft. CASA assessed the AD and determined that it should be cancelled because the unsafe condition no longer existed. This cancellation became effective on 8 May 2008, and no replacement AD was required. The decision to cancel the AD was made in accordance with Australia’s obligations under the Convention on International Civil Aviation and did not require consultation with the Australian public or a Regulatory Impact Statement. The AD was issued by the Manager, Systems and New Technologies in the Airworthiness Engineering Branch, on behalf of CASA, in accordance with subsection 84A(2) of the Act.