AD/ATR 42/19 Amdt 1 - Fuel Tank Safety Fuel Airworthiness Limitations

Overview

The Civil Aviation Act 1988, enacted by the Parliament of Australia, establishes a comprehensive framework for ensuring the safety and efficiency of civil aviation within Australia. This legislation addresses the need for stringent regulatory oversight to maintain high standards of air safety and to harmonise Australian aviation practices with international standards. A significant aspect of the Act is its delegation of powers to the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) under regulation 39.001 of the Civil Aviation Safety Regulations 1998. These directives serve as legislative instruments that mandate specific actions to ensure the continuing airworthiness of aircraft, aligning with the broader policy objective of maintaining and enhancing aviation safety. The Act empowers CASA to act on behalf of Australia in its international obligations, such as those outlined in Annex 8 to the Convention on International Civil Aviation, thereby ensuring that Australian aircraft meet global safety standards.

Scope and Application

The Civil Aviation Act 1988, supplemented by the Civil Aviation Safety Regulations 1998, empowers the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) concerning types of aircraft or aeronautical products to ensure air navigation safety. These regulations apply to all entities involved in the design, manufacture, and operation of aircraft within Australia, and are aligned with international standards set by the International Civil Aviation Organization (ICAO). The application of these directives is national, encompassing all aircraft registered in Australia, regardless of where they are manufactured or initially registered. The authority to issue such directives is granted under section 98 of the Civil Aviation Act 1988 and regulation 39.001 of the Civil Aviation Safety Regulations 1998, and these directives are considered legislative instruments under the Legislative Instruments Act 2003. While the ADs generally require adherence from all relevant parties, specific exclusions or exemptions are not detailed in the provided text, and any such provisions would likely be found in the detailed content of the ADs themselves. The ADs extend their reach through subordinate instruments, ensuring that national regulations remain in sync with international standards and obligations.

Key Provisions

The Civil Aviation (Airworthiness) Regulations 1998 (CASR) provide the framework for the issuance of airworthiness directives (ADs) under section 98 of the Civil Aviation Act 1988, specifically regulation 39.001. An AD, as defined in subregulation 39.001(5), is a legislative instrument that can be disallowed under section 46A of the Acts Interpretation Act 1901. This means that the AD can be reviewed and potentially disallowed by Parliament if deemed inappropriate. The State of Design, which is the country responsible for the aircraft's design, holds the primary responsibility for ensuring the aircraft's continuing airworthiness and must provide necessary information to the State of Registry. In turn, the State of Registry must develop or adopt requirements to ensure the aircraft's ongoing airworthiness. In Australia, the Civil Aviation Safety Authority (CASA) acts as the national airworthiness authority and is required to assess and, if necessary, issue an Australian AD to enforce the requirements of the State of Design. The obligations under the CASR include the duty of CASA to review any ADs issued by the State of Design and to decide whether to issue an equivalent AD in Australia. This process ensures that Australian aircraft meet the necessary safety standards set forth by international conventions and agreements. For example, following the European Aviation Safety Authority (EASA) issuing AD 2006-0219R1 affecting the Avions de Transport Régional ATR 42 model aircraft, CASA amended the corresponding Australian AD to align with EASA’s requirements and issued Australian AD/ATR 42/19, Amendment 1. This amendment reflects Australia’s commitment to international safety standards and ensures consistency in airworthiness requirements across jurisdictions. The ADs are integral to maintaining the safety and airworthiness of aircraft, and thus, they are issued without public consultation as they stem from international obligations under the Convention on International Civil Aviation. The Office of Best Practice Regulation has confirmed that such ADs do not necessitate a Regulatory Impact Statement. The AD is issued by the Manager, Systems and New Technologies in the Airworthiness Engineering Branch on behalf of CASA, as stipulated in subsection 84A(2) of the Act. This authority ensures that the ADs are issued in a manner that complies with legislative requirements and maintains the highest safety standards. Failure to comply with the provisions of an AD can result in serious civil and criminal consequences. Under the Civil Aviation Act 1988, non-compliance with an AD can be considered an offence, leading to potential penalties. The severity of penalties can vary, but they may include substantial fines and, in some cases, imprisonment. The exact penalties are determined by the courts, but the overarching objective is to ensure that all stakeholders adhere to the safety standards set forth by the ADs to protect the public and maintain the integrity of the aviation industry.