Overview

The Civil Aviation Safety Regulations 1998 were enacted to ensure the safety of civil aviation in Australia, aligning with the Convention on International Civil Aviation. This legislation empowers the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (AD) to address safety concerns. AD/AL 250/91 is an airworthiness directive issued by CASA to tackle an unsafe situation involving Rolls-Royce Allison 250 series engines on Australian registered aircraft. This directive mandates the removal from service of certain engine compressor modules that may not have been inspected or repaired according to approved procedures, following findings by the New Zealand Civil Aviation Authority. Given the urgency to address the safety issue, CASA did not consult with the industry or the public before issuing this directive. The directive is compatible with human rights as it does not engage any applicable rights or freedoms, as affirmed by the Statement of Compatibility with Human Rights.

Scope and Application

The AD/AL 250/91 issued under the Civil Aviation Safety Regulations 1998 applies to aircraft operators in Australia who have Rolls-Royce Allison 250 series engines on their aircraft. This legislation mandates the removal from service of certain engine compressor modules to address unsafe conditions identified in a New Zealand maintenance organisation audit. The directive is specifically targeted at ensuring the continuing airworthiness of these aircraft and ensuring compliance with safety standards as required by Annex 8 of the Convention on International Civil Aviation. While the directive applies nationally, its specific focus is on engines on aircraft registered in Australia, ensuring that they meet the necessary safety requirements to operate within Australian airspace. There are no exclusions or exemptions specified in this directive, meaning it applies broadly to all affected aircraft and engines. The regulatory power to issue such directives is granted under section 98 of the Civil Aviation Act 1988, which allows the Governor-General to make regulations to enforce international aviation safety standards. The AD is effective immediately upon its issuance and does not require consultation due to the urgency of addressing the identified unsafe condition.

Key Provisions

The main operative sections of the Civil Aviation Safety Regulations 1998 (CASR) are relevant here, particularly regulation 39.001, which empowers the Civil Aviation Safety Authority (CASA) to issue airworthiness directives (ADs) for certain types of aircraft or aeronautical products. In this case, AD/AL 250/91 has been issued under the authority of the Civil Aviation Act 1988 (section 98) to address an unsafe condition concerning Rolls-Royce Allison 250 series engine compressor modules. The AD mandates the removal from service of specific compressor modules that may not have undergone inspections or repairs in accordance with manufacturer-approved procedures. The obligations imposed by AD/AL 250/91 on the parties it governs are primarily focused on ensuring the safety of aircraft fitted with the affected engine compressor modules. Operators and maintenance organisations must adhere to the AD by inspecting the compressor modules as specified and removing any modules identified as non-compliant with manufacturer procedures from service. This ensures that the aircraft remain airworthy and compliant with safety standards. Furthermore, the AD requires operators to notify CASA of the actions taken to address the unsafe condition, including details of any removed compressor modules and the subsequent actions taken to rectify the situation. Failure to comply with AD/AL 250/91 can result in significant civil and criminal consequences. CASA has the authority to enforce compliance with ADs under the Civil Aviation Act 1988 and the Civil Aviation Safety Regulations 1998. Non-compliance can lead to enforcement actions, including fines, suspension or revocation of air operator certificates, and other penalties deemed necessary by CASA. Additionally, operators who fail to comply with the AD could face prosecution for breaches of civil aviation safety regulations, potentially resulting in substantial fines and imprisonment. The seriousness of these potential consequences underscores the importance of adhering to the requirements of the AD to maintain the highest safety standards in Australian aviation. The AD does not incorporate any external documents by reference but does list the New Zealand Civil Aviation Authority's AD DCA/AL250/60 as a source document for a table of affected compressor modules. This reference is provided for informational purposes to assist operators and maintenance personnel in identifying the affected compressor modules. However, the primary legal obligations and requirements are set out within AD/AL 250/91 itself. CASA has determined that consultation with the Australian aviation industry and the general public was not feasible due to the urgency of the situation, as the AD necessitates immediate action to ensure safety. In summary, AD/AL 250/91 is a critical legislative instrument aimed at addressing an identified safety issue with certain Rolls-Royce Allison 250 series engine compressor modules. It imposes clear obligations on aircraft operators and maintenance organisations to inspect and remove non-compliant modules from service. Failure to comply with the AD can result in significant civil and criminal penalties, highlighting the importance of adhering to the directive to maintain the highest standards of aviation safety in Australia.