Overview

The Civil Aviation Safety Regulations 1998, enacted to implement and enforce safety standards within Australia's civil aviation sector, were updated to repeal Airworthiness Directive CASA AD/T53/21 - Tachometer Drive Spur Gear through instrument F2022L00728. This repeal was necessitated by the issuance of a more recent Federal Aviation Administration directive, FAA AD 2022-10-02, which supersedes the requirements of the previous Australian directive. The repeal was carried out under the authority conferred by the Civil Aviation Act 1988, allowing the Civil Aviation Safety Authority (CASA) to issue airworthiness directives. The policy objective of this repeal was to ensure that Australian aviation safety regulations remain aligned with international standards and to avoid any redundancy in compliance requirements. The repeal instrument, CASA ADCX 003/22, was made by a delegate of CASA, effective from 28 June 2022, and no consultation was deemed necessary due to the direct supersession by the newer FAA directive.

Scope and Application

The Civil Aviation Safety Regulations 1998, specifically Regulation 39.001, empowers the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (AD) for particular kinds of aircraft or aeronautical products to ensure safety. These directives are intended to maintain the airworthiness of aircraft and aeronautical products, which are critical to ensuring safety in civil aviation. The regulations apply to all aircraft registered in Australia and all aeronautical products used on those aircraft. The geographic reach of these regulations is national, as Australia is a signatory to the Convention on International Civil Aviation and its Annexes. This legislation also extends to foreign State of Design ADs, such as those issued by the United States Federal Aviation Administration, which apply to Australian aircraft under specific conditions. The repeal of Airworthiness Directive CASA AD/T53/21 – Tachometer Drive Spur Gear, which applied to Honeywell T53 series engines, is an example of how CASA may modify or revoke ADs in light of new information or directives from other international bodies. The repeal took effect on 28 June 2022, aligning with the new United States FAA AD 2022-10-02. No consultation was deemed necessary by CASA as the new directive from the FAA supersedes the need for the Australian directive, and a Regulation Impact Statement was not required due to a standing agreement between CASA and the Office of Best Practice Regulation.

Key Provisions

The key operative sections of the Civil Aviation Safety Regulations 1998 (CASR) relevant to this legislation are section 98, which empowers the Governor-General to make regulations for implementing international civil aviation safety conventions, and regulation 39.001, which allows the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for aircraft or aeronautical products. Furthermore, section 33(3) of the Acts Interpretation Act 1901 allows for the repeal, rescind, revoke, amend, or vary of legislative instruments. This repeal, CASA ADCX 003/22, specifically targets AD/T53/21 concerning the tachometer drive spur gear for Honeywell T53 series engines, which has been superseded by a more recent Federal Aviation Administration (FAA) AD, 2022-10-02. The obligations imposed by this legislation on the parties it governs primarily involve compliance with the new FAA AD 2022-10-02, which supersedes AD/T53/21. Operators of Honeywell T53 series engines must adhere to the inspection, rectification, or maintenance requirements outlined in the FAA directive, effective from 28 June 2022. CASA may also grant exclusions or approve alternative means of compliance under regulation 39.001A of the CASR, which defines an AD to include foreign State of Design ADs issued on or after 1 October 2009. Consequently, entities such as aircraft operators and maintenance service providers must ensure their practices align with the new FAA requirements to maintain the airworthiness of the aircraft. Any breach of the requirements set forth in the FAA AD 2022-10-02, which has effectively replaced AD/T53/21, could result in civil or criminal consequences. While the specific penalties are not detailed in this repeal instrument, non-compliance with airworthiness directives generally can lead to substantial fines and other enforcement actions under the Civil Aviation Act 1988. The maximum penalties for offences under the Act can include fines of up to $222,222 for individuals and $1,111,110 for corporations, alongside potential imprisonment terms. Therefore, it is critical for all affected parties to ensure full compliance with the new FAA directive to avoid these severe repercussions. In summary, this repeal of AD/T53/21, effective from 28 June 2022, mandates adherence to the newer FAA AD 2022-10-02 for Honeywell T53 series engines. The repeal itself does not introduce new obligations but shifts the compliance focus to the updated FAA directive, which must be followed to maintain airworthiness standards. Non-compliance could result in significant penalties, underscoring the importance of adhering to the new requirements.