Overview

The Civil Aviation Orders were introduced in 1988 to provide a comprehensive regulatory framework governing all aspects of civil aviation in Australia. Among these orders, the Civil Aviation Safety Authority (CASA) Part 105 Schedule of Airworthiness Directives specifically addresses the maintenance and operational standards for various aircraft models, including the Gulfstream (Grumman) G.159 series aeroplanes. Enacted by the Parliament of Australia, this legislation was developed to address safety gaps and ensure the reliability and airworthiness of aircraft within Australian airspace. One such directive, AD/G159/10, concerns the installation of an accessory gearbox generator baffle and supercharger drain line for specified Gulfstream G.159 series aeroplanes. The policy objective of this directive is to mitigate potential risks associated with the aircraft's operational integrity and enhance overall flight safety.

Scope and Application

The Civil Aviation Orders, specifically Part 105 Schedule of Airworthiness Directives, applies to the Gulfstream (Grumman) G.159 series aeroplanes with specific serial numbers: 1 to 12, 14 to 86, and 114. This regulation mandates the installation of an accessory gearbox generator baffle and a supercharger drain line, as outlined in Grumman Service Change No. 139.4/67. However, if the aircraft incorporates the Dowty Rotol Modification GB1843, the installation of the baffle between the DC generator and the generator adapter is not required. The legislation has a national jurisdictional reach, as it is a Commonwealth regulation under the Civil Aviation Safety Authority, applying uniformly across all states and territories in Australia. The directive ensures the safety and airworthiness of specified Gulfstream (Grumman) G.159 aeroplanes by enforcing specific modifications and installations.

Key Provisions

The primary sections of the Civil Aviation Orders (CAO) 1988, as amended by the Civil Aviation Safety Authority (CASA) under the legislative instrument F2006B10054, pertain to the applicability and requirements for the installation of the accessory gearbox generator baffle and supercharger drain line in Gulfstream (Grumman) G.159 series aeroplanes. Section 105.202(1) mandates that all models with serial numbers 1 to 12, 14 to 86, and 114 must comply with the installation as outlined in Grumman Service Change No. 139.4/67. However, section 105.202(2) provides an exception, stating that the installation of the baffle between the DC generator and the generator adapter need not be carried out if Dowty Rotol Modification GB1843 is already incorporated. The obligations imposed by the CAO on the operators and owners of the specified Gulfstream (Grumman) G.159 series aeroplanes include ensuring the aircraft meets the specified modifications as per the referenced service change. This involves either installing the accessory gearbox generator baffle and supercharger drain line as per Grumman Service Change No. 139.4/67 or verifying that the Dowty Rotol Modification GB1843 has been incorporated, thereby exempting the operator from the baffle installation requirement. These obligations are designed to maintain the airworthiness of the aircraft, ensuring safety and compliance with aviation standards. Failure to comply with the provisions of the CAO can result in serious consequences. According to section 105.202(3), non-compliance with the airworthiness directives can lead to penalties, including fines and potential grounding of the aircraft. The specific penalties are not detailed in the legislative instrument but are governed by the broader provisions of the Civil Aviation Act 1988, which can impose fines up to $105,000 for individuals and $525,000 for corporations. Additionally, CASA has the authority to take enforcement actions such as suspension or revocation of airworthiness certificates, which can significantly impact the operation of the aircraft. In summary, the CAO mandates specific modifications for certain Gulfstream (Grumman) G.159 series aeroplanes to ensure their airworthiness. Operators and owners must adhere to these requirements, either by installing the accessory gearbox generator baffle and supercharger drain line or confirming the incorporation of the Dowty Rotol Modification GB1843. Failure to comply can result in substantial penalties and enforcement actions by CASA, highlighting the critical importance of adhering to these directives for the safety and legality of aircraft operations.