AD/CIRRUS/8 - Wingtip Drain Hole

Overview

The Civil Aviation Act 1988 was enacted to provide for the safety of air navigation and related matters in Australia. The Act allows the Governor-General to make regulations to ensure the safety of air navigation. Under this authority, the Civil Aviation Safety Regulations 1998 were made, and regulation 39.001 allows the Civil Aviation Safety Authority (CASA) to issue airworthiness directives for kinds of aircraft or aeronautical products. These airworthiness directives serve as a legislative instrument, as outlined in the Legislative Instruments Act 2003. The issuing of these directives is governed by international standards, particularly Annex 8 to the Convention on International Civil Aviation, which assigns responsibility for continuing airworthiness to the State of Design and the State of Registry. The Civil Aviation Safety Regulations 1998 require CASA to assess any airworthiness directives issued by the State of Design for aircraft on the Australian Register and, where appropriate, issue corresponding Australian directives to mandate the requirements. This ensures compliance with international obligations while maintaining safety standards in Australia. In the case of the Cirrus SR22 model aircraft, CASA issued Australian AD/CIRRUS/8 following an airworthiness directive from the US Federal Aviation Administration (FAA), the State of Design. This action was taken without public consultation due to the international obligations under the Convention on International Civil Aviation and was determined not to require a Regulatory Impact Statement by the Office of Best Practice Regulation. The directive was issued by the Manager, Airframes in the Airworthiness Engineering Branch on behalf of CASA, in accordance with the Act.

Scope and Application

The Civil Aviation Safety Regulations 1998, under section 39.001, empower the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products. These ADs serve as legislative instruments in accordance with section 46A of the Acts Interpretation Act 1901 and the Legislative Instruments Act 2003. The regulations pertain to the continuing airworthiness of aircraft registered in Australia, and CASA is mandated to ensure compliance with international standards set forth in Annex 8 to the Convention on International Civil Aviation. This convention places the responsibility of continuing airworthiness on the State of Design, which must provide necessary information to the States of Registry, including Australia. When a State of Design, such as the United States in the case of the Cirrus SR22, issues an AD, CASA must assess and, if appropriate, issue a corresponding Australian AD. This ensures that Australian-registered aircraft meet the required safety standards. Exemptions or thresholds for issuing such directives are not explicitly mentioned in the text, but the necessity for compliance with international standards and the obligations under the Convention on International Civil Aviation guide their issuance.

Key Provisions

The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 provide the framework for the issuance of airworthiness directives (ADs) under section 98 and regulation 39.001 respectively. An AD is a legislative instrument, as outlined in subregulation 39.001(5) and section 6 of the Legislative Instruments Act 2003. These directives are essential tools for ensuring the continuing airworthiness of aircraft types, as mandated by Annex 8 to the Convention on International Civil Aviation. The State of Design, such as the USA for the Cirrus SR22, has the primary responsibility for issuing ADs, and the State of Registry, which in Australia is represented by CASA, must assess these directives and issue corresponding Australian ADs if appropriate. The obligations imposed by these provisions on the relevant parties are substantial. The State of Design must ensure that any AD issued is in the interest of safety and must provide necessary information to States of Registry, such as Australia. The State of Registry, represented by CASA, must assess these ADs and issue Australian ADs to ensure compliance with international standards and maintain the continuing airworthiness of aircraft within their jurisdiction. This involves a rigorous process of evaluation and assessment to determine the applicability and necessity of the ADs for aircraft registered in Australia. For example, CASA has assessed the US FAA's AD 2007-24-13 for the Cirrus SR22 and issued Australian AD/CIRRUS/8, effective from 7 December 2007. The consequences of failing to comply with the requirements set out in these ADs are significant. Civil Aviation Safety Regulations 1998 and the Civil Aviation Act 1988 establish clear penalties for non-compliance. Operators found not adhering to ADs may face serious civil penalties, including fines and potential grounding of the affected aircraft. In extreme cases, non-compliance can result in criminal charges against individuals or corporations, leading to substantial fines and imprisonment. The severity of these consequences underscores the importance of adhering to ADs to ensure the safety and airworthiness of aircraft operating within Australia. In summary, the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 mandate the issuance and enforcement of ADs to maintain the safety and airworthiness of aircraft. The obligations fall on the State of Design to issue necessary directives and on the State of Registry to assess and implement these directives in their jurisdiction. Failure to comply with these regulations can result in severe civil and criminal penalties, highlighting the critical importance of adhering to ADs.