AD/CL-600/71 - State of Design Airworthiness Directives

Overview

The Civil Aviation Act 1988, enacted by the Parliament of Australia, provides the legal framework for the regulation of civil aviation within the country. It aims to ensure the safety and efficiency of civil aviation, including the continuing airworthiness of aircraft. Under this Act, the Civil Aviation Safety Authority (CASA) has the authority to issue airworthiness directives (ADs) in accordance with regulation 39.001 of the Civil Aviation Safety Regulations 1998. These ADs are legislative instruments made under the authority of the Governor-General and are intended to mandate safety requirements for specific types of aircraft or aeronautical products. The ADs are in response to Australia's obligations under the Convention on International Civil Aviation and aim to harmonise safety standards with other contracting states. Given their nature, these directives are not subject to public consultation or the requirement for a Regulatory Impact Statement, as they are issued in direct response to international obligations and assessments by CASA. The AD/CL-600/71 was issued by CASA in response to airworthiness directives issued by Transport Canada concerning Bombardier Regional Jet models CL-600-2B19, CL-600-2C10, CL-600-2D15, and CL-600-2D24. CASA assessed the Canadian ADs and determined that corresponding Australian ADs were necessary to ensure compliance with international safety standards. This directive, effective from 29 June 2007, mandates adherence to all the specified Canadian ADs, thereby maintaining the airworthiness of these aircraft types registered in Australia.

Scope and Application

The Civil Aviation Act 1988, along with the Civil Aviation Safety Regulations 1998, provides a framework for ensuring the safety of air navigation, including the issuance of airworthiness directives (ADs). Under the Act, the Governor-General may make regulations for safety purposes, and the Civil Aviation Safety Authority (CASA) can issue ADs for specific kinds of aircraft or aeronautical products as stipulated in regulation 39.001. These ADs are legislative instruments, disallowable under the Acts Interpretation Act 1901, and must be assessed and, if necessary, mandated by CASA to ensure compliance with international standards set out in Annex 8 to the Convention on International Civil Aviation. In the case of Bombardier Regional Jet model CL-600 aircraft, CASA has issued AD/CL-600/71, effective from 29 June 2007, in response to Canadian Transport Canada ADs. This process does not involve public consultation as it adheres to international obligations, and CASA has determined that such directives do not require a Regulatory Impact Statement. The ADs listed in Schedule 1 to the Explanatory Statement detail specific compliance requirements for various Bombardier Regional Jet models, all of which must be adhered to by relevant entities within the aviation industry.

Key Provisions

The Civil Aviation (Safety) Regulations 1998, under section 39.001, empower the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific kinds of aircraft or aeronautical products (section 39.001(5)). These ADs are legislative instruments under the Legislative Instruments Act 2003. They are crucial for ensuring the continuing airworthiness of aircraft types, as mandated by Annex 8 to the Convention on International Civil Aviation, which places the responsibility on the State of Design. In Australia, CASA, as the national airworthiness authority, must evaluate any ADs issued by the State of Design and, if deemed necessary, issue corresponding Australian ADs to enforce the required safety measures. Compliance with ADs is a legal obligation for the State of Registry of individual aircraft. This entails that they must implement or adopt the requirements outlined in the ADs to ensure the ongoing airworthiness of the aircraft. The State of Registry must adhere to the ADs issued by CASA, which are typically in response to ADs from the State of Design, as is the case with AD/CL-600/71 for Bombardier Regional Jet models CL-600-2B19, CL-600-2C10, CL-600-2D15 and CL-600-2D24. The AD/CL-600/71, which became effective on 29 June 2007, mandates compliance with all the Canadian Transport Canada ADs listed in Schedule 1 of the explanatory statement. Failure to comply with the requirements of an AD can lead to severe consequences. Under section 98 of the Civil Aviation Act 1988, CASA has the authority to enforce compliance through various means, including the imposition of fines and other penalties. The specific penalties for non-compliance with ADs are not explicitly stated in the provided text, but it is implied that CASA can take appropriate action against entities that fail to adhere to the safety directives. Given the critical nature of airworthiness directives in maintaining the safety of air navigation, the potential penalties for non-compliance are likely to be significant, reflecting the serious nature of the safety breaches involved.