AD/DAUPHIN/1 - Tail Rotor and Tail Gearbox Support - Inspection - CANCELLED

Overview

The Civil Aviation Act 1988 was enacted to provide a framework for the regulation of civil aviation in Australia, ensuring the safety and efficiency of air navigation. It empowers the Governor-General to create regulations that serve the interests of air navigation safety. The Act allows the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) under regulation 39.001 of the Civil Aviation Safety Regulations 1998. These directives are legislative instruments, as per section 46A of the Acts Interpretation Act 1901 and section 6 of the Legislative Instruments Act 2003. The objective of these regulations is to maintain and enhance the continuing airworthiness of aircraft, in line with international standards set by the International Civil Aviation Organization (ICAO). In line with its regulatory responsibilities, CASA issued an airworthiness directive concerning Eurocopter SA365 Dauphin helicopters in 1979. Following a review, CASA has decided to cancel this directive, effective from 27 August 2009, as the unsafe condition it addressed no longer exists. This cancellation reduces the regulatory burden, and therefore, no public consultation or Regulatory Impact Statement was required. The decision to cancel the directive was made by the Manager, Initial Airworthiness, in the Airworthiness and Engineering Branch of CASA, under the authority granted by subsection 84A(2) of the Civil Aviation Act 1988.

Scope and Application

The Civil Aviation Act 1988 applies to the safety of air navigation, and under its provisions, the Civil Aviation Safety Regulations 1998 allow the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for types of aircraft or aeronautical products. These ADs, as legislative instruments, are designed to ensure the continuing airworthiness of aircraft, aligning with the responsibilities outlined in Annex 8 to the Convention on International Civil Aviation. The State of Design is tasked with the overall responsibility for the airworthiness of an aircraft type, while the State of Registry, in this context CASA, must ensure the continuing airworthiness of individual aircraft. The ADs are a mechanism to communicate necessary information to achieve these safety objectives. The AD/DAUPHIN/1, originally issued for Eurocopter SA365 Dauphin helicopters, was subsequently cancelled by CASA as the unsafe condition it addressed no longer exists, leading to a reduction in regulatory burden without the need for public consultation or a Regulatory Impact Statement. This cancellation, effective from 27 August 2009, was made under the authority vested in CASA by the Civil Aviation Act 1988 and executed by the Manager, Initial Airworthiness, within the Airworthiness and Engineering Branch.

Key Provisions

The Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998 provide a framework for the issuance of airworthiness directives (ADs) under section 98 of the Act and regulation 39.001 of the Regulations. These ADs, as detailed in subregulation 39.001(5), are considered disallowable instruments under section 46A of the Acts Interpretation Act 1901 and are legislative instruments under section 6 of the Legislative Instruments Act 2003. The State of Design is primarily responsible for the continuing airworthiness of an aircraft type, as outlined in Annex 8 to the Convention on International Civil Aviation, and must provide necessary information to States of Registry. The State of Registry, in turn, must ensure the continuing airworthiness of individual aircraft under Annex 8. The obligations imposed by these provisions include the requirement for the State of Design to ensure the continuing airworthiness of aircraft types and for the State of Registry to develop or adopt requirements to maintain airworthiness. The issuance of ADs by the Civil Aviation Safety Authority (CASA) is a critical tool for ensuring compliance with these obligations. CASA, in its capacity as the regulatory body, has the authority to issue ADs to address unsafe conditions that may affect the airworthiness of aircraft. These directives must be based on thorough assessments and are intended to mitigate risks and ensure safety in air navigation. In the specific case of AD/DAUPHIN/1, which was issued in 1979 for Eurocopter SA365 Dauphin helicopters, CASA has reviewed the directive and decided to cancel it, effective 27 August 2009. This decision was made because the unsafe condition that originally prompted the directive no longer exists, and no replacement AD is necessary. The cancellation of this directive is a reflection of the ongoing assessment process and the authority of CASA to adapt regulations as circumstances change. Importantly, no consultation with the Australian public was required for this cancellation, as it results in a reduction of the regulatory burden. Additionally, the Office of Best Practice Regulation has determined that ADs do not require a Regulatory Impact Statement, which simplifies the regulatory process. For breaches of the provisions of the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998, the Act includes provisions for both civil and criminal penalties. Offences under the Act can result in significant penalties, including fines and imprisonment, depending on the severity of the breach and the specific provisions violated. The exact penalties are not detailed in the explanatory statement but generally reflect the seriousness of the offence and the potential impact on aviation safety. It is essential for parties governed by these regulations to adhere to the requirements to avoid these consequences.