AD/HS 125/179 - UAM100 Current Limiters

Overview

The Civil Aviation Act 1988, enacted by the Australian Parliament, was introduced to provide a legislative framework for the regulation of civil aviation in Australia, ensuring safety and efficiency in air navigation. The Act grants the Governor-General the authority to make regulations under section 98, which includes issuing airworthiness directives to maintain the safety of aircraft. The Civil Aviation Safety Regulations 1998, under regulation 39.001, empower the Civil Aviation Safety Authority (CASA) to issue these directives for specific types of aircraft or aeronautical products. This legislative structure aligns with international standards, particularly Annex 8 to the Convention on International Civil Aviation, which mandates that the State of Design must ensure the continuing airworthiness of an aircraft type, while the State of Registry, such as CASA for Australia, must enforce these standards domestically. The ADs are considered legislative instruments, and their issuance is conducted in accordance with the Legislative Instruments Act 2003. The policy objective behind these regulations is to uphold the highest standards of safety in civil aviation, both domestically and in alignment with international obligations.

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. This authority is exercised in accordance with section 98 of the Civil Aviation Act 1988, with the overarching goal of ensuring the safety of air navigation. These directives are legislative instruments, subject to disallowance as per section 46A of the Acts Interpretation Act 1901 and regulated under the Legislative Instruments Act 2003. The ADs are issued in response to international obligations under Annex 8 to the Convention on International Civil Aviation, which places the responsibility for the continuing airworthiness of aircraft types on the State of Design. CASA, as Australia's national airworthiness authority, is tasked with assessing information from the State of Design and, when appropriate, issuing corresponding Australian ADs to enforce the necessary safety requirements. This process ensures compliance with international standards and the continuing airworthiness of aircraft registered in Australia.

Key Provisions

The Civil Aviation (Safety) Regulations 1998 empower the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for specific types of aircraft or aeronautical products under section 39.001(5). These ADs are legislative instruments, as they fall under the purview of the Legislative Instruments Act 2003 and are considered disallowable instruments under the Acts Interpretation Act 1901. The State of Design, which is the state where an aircraft type is designed, has the primary responsibility for ensuring the continuing airworthiness of that type, including providing necessary information to the States of Registry. The State of Registry, which is the state where an individual aircraft is registered, must then implement or adopt requirements to maintain the airworthiness of that aircraft. In cases where a State of Design issues an AD, CASA, as Australia's national airworthiness authority, must evaluate this information and, if appropriate, issue an Australian AD to enforce the requirements of the State of Design. The obligations under the Civil Aviation Safety Regulations 1998 necessitate that CASA carefully assess and respond to ADs issued by the States of Design. This process involves a thorough evaluation of the information provided by the State of Design to ensure that it meets the safety standards required under the Civil Aviation Act 1988. Once CASA determines that an Australian AD is necessary, it must be issued to mandate compliance with the airworthiness requirements for the affected aircraft types. This obligation ensures that Australian aircraft maintain their airworthiness in accordance with international standards set forth by the Convention on International Civil Aviation. In the case of AD 2006-12-20 issued by the United States Federal Aviation Administration (FAA) for Raytheon Aircraft Company HS 125, BAe 125, and Hawker 800 and 1000 model aircraft, CASA has assessed the directive and issued Australian AD/HS 125/179, which is set to take effect on 3 July 2006. This action is taken due to Australia's commitments under the Convention on International Civil Aviation and in response to the AD raised by the relevant State of Design. Notably, no public consultation was required for this AD as it was determined by the Office of Regulatory Review that such ADs do not necessitate a Regulatory Impact Statement. The AD was made by the Manager, New Technologies and Systems, in the Manufacturing, Certification and New Technologies Office at CASA, in accordance with subsection 84A(2) of the Act. The consequences for non-compliance with airworthiness directives in Australia are significant. Failure to comply with an AD can result in severe civil and criminal penalties. Under the Civil Aviation Act 1988, individuals or entities that do not adhere to an AD can be fined up to a maximum of 500 penalty units for individuals, or 2,500 penalty units for bodies corporate. These fines reflect the serious nature of ensuring air safety and the critical importance of adhering to ADs. Additionally, non-compliance can lead to other civil consequences, such as the grounding of aircraft or revocation of airworthiness certificates, which further underscore the necessity of strict adherence to ADs to maintain the high safety standards required in aviation.