AD/BN-2/2 - Fuel Tank Sump - Modification - CANCELLED

Overview

The Civil Aviation Act 1988 was enacted to establish a comprehensive regulatory framework for civil aviation in Australia, ensuring the safety and efficiency of air navigation. Section 98 of the Act empowers the Governor-General to create regulations that serve the interests of air navigation safety, with the Civil Aviation Safety Regulations 1998 providing specific guidelines. One such regulation is 39.001, which allows the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for aircraft and aeronautical products. These ADs are legislative instruments subject to disallowance under the Acts Interpretation Act 1901 and are crucial for maintaining the continuing airworthiness of aircraft types, as mandated by Annex 8 to the Convention on International Civil Aviation. CASA, as Australia’s national airworthiness authority, is responsible for issuing ADs that reflect the safety requirements of the aircraft's State of Design, ensuring compliance with international standards and obligations.

Scope and Application

The Civil Aviation Safety Regulations 1998, pursuant to the Civil Aviation Act 1988, empower the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products. These directives are a legislative instrument under the Legislative Instruments Act 2003 and are designed to ensure the continuing airworthiness of aircraft as mandated by Annex 8 to the Convention on International Civil Aviation. The State of Registry of an aircraft, which in Australia is CASA, is responsible for implementing these directives to maintain safety standards. In the specific case of AD/BN-2/2 concerning the Pilatus Britten-Norman BN-2 (Islander) model aeroplanes, CASA assessed the original AD and, due to the resolution of the unsafe condition, decided to cancel the Australian AD effective from 18 December 2008, without the need for a replacement AD. This decision was made in line with Australia's international obligations and did not require public consultation or a Regulatory Impact Statement, as determined by the Office of Best Practice Regulation. The AD was issued by the Manager, Systems and New Technologies, in the Airworthiness Engineering Group at CASA, in accordance with the Civil Aviation Act 1988.

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. Regulation 39.001 of the Civil Aviation Safety Regulations 1998 allows the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products. These ADs serve as critical tools for maintaining the continuing airworthiness of aircraft, ensuring they meet safety standards set forth by the State of Design. Under subregulation 39.001(5), an AD is deemed a disallowable instrument under the Acts Interpretation Act 1901, and as such, it is also classified as a legislative instrument in accordance with section 6 of the Legislative Instruments Act 2003. The obligations imposed by the Civil Aviation Safety Regulations 1998 on the parties and entities they govern are significant. The State of Design, which is the country where the aircraft type is designed, has the overarching responsibility for ensuring the continuing airworthiness of that aircraft type. This includes providing any necessary information to the State of Registry, which is the country where the aircraft is registered. The State of Registry must then develop or adopt its own requirements to ensure the airworthiness of the aircraft on its registry. In the case of Australian-registered aircraft, CASA, as the national airworthiness authority, must assess any airworthiness directives issued by the State of Design and, if deemed appropriate, issue an Australian AD to enforce those requirements. Failure to comply with the provisions of the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 can result in severe consequences. While specific penalties are not outlined in the provided text, non-compliance with airworthiness directives can generally lead to civil or criminal penalties. These may include fines or imprisonment, depending on the severity of the breach. The precise penalties would be determined by the courts based on the specific circumstances of the case. The regulatory framework is designed to ensure that all parties involved adhere to stringent safety standards, thereby protecting the public and maintaining the integrity of the aviation system. In the specific case of the Pilatus Britten-Norman BN-2 (Islander) model aeroplanes, CASA issued an airworthiness directive (AD/BN-2/2) which has since been cancelled due to the resolution of the unsafe condition. This cancellation reflects Australia’s adherence to its obligations under the Convention on International Civil Aviation. As the unsafe condition no longer exists, no replacement AD is necessary. The cancellation process did not involve public consultation or a Regulatory Impact Statement, as determined by the Office of Best Practice Regulation. The cancellation was executed by the Manager, Systems and New Technologies, in the Airworthiness Engineering Group, on behalf of CASA, in line with subsection 84A(2) of the Civil Aviation Act 1988.