AD/G1159/23 Amdt 2 - Main Landing Gear Side Brace Actuating Cylinders - Inspection

Overview

The Civil Aviation Regulations 1998, as amended, provide a comprehensive regulatory framework governing all aspects of civil aviation in Australia, including the maintenance and airworthiness of aircraft. One of the legislative instruments under this Act is the Airworthiness Directive (AD) pertaining to Gulfstream (Grumman) G1159 and G-IV Series Aeroplanes, specifically AD/G1159/23 Amendment 2, which addresses the inspection of Main Landing Gear Side Brace Actuating Cylinders. Enacted by the Civil Aviation Safety Authority (CASA) under the authority granted by the Civil Aviation Act 1988, this directive was introduced to ensure that all relevant models with actuators installed comply with the updated maintenance requirements as outlined in Grumman Customer Bulletin No. 286A, Amendment 1. The policy objective behind this AD is to enhance the safety and reliability of the affected aircraft by extending the overhaul period for the specified actuators, based on further research conducted by the manufacturer. This AD is applicable to all Gulfstream G1159 and G-IV Series Aeroplanes equipped with the specified actuators. Compliance with this directive is mandatory, as it is crucial for maintaining the airworthiness of these aircraft. The directive reflects CASA's commitment to continually updating safety standards in response to new findings and technological advancements to protect the integrity of civil aviation in Australia.

Scope and Application

The Civil Aviation Regulations 1998, as amended by the legislative instrument F2006B10025, specifically address the maintenance and airworthiness of Gulfstream (Grumman) G1159 and G-IV series aeroplanes, particularly focusing on the main landing gear side brace actuating cylinders. This regulation applies to all Gulfstream G1159 and G-IV series aeroplanes that have actuators installed in accordance with the requirements specified in Grumman Customer Bulletin No. 286A, Amendment 1. The regulation mandates that these aircraft undergo inspections as detailed in the specified document to ensure ongoing compliance with airworthiness directives. The regulation is enforced by the Civil Aviation Safety Authority, which has the authority to issue directives under the Civil Aviation Act 1988 to ensure safety and compliance within the aviation industry in Australia. This regulation does not specify any exclusions or exemptions but is subject to further amendments through subordinate instruments as necessary to maintain safety standards.

Key Provisions

The Civil Aviation Regulations 1998 (Regulations) under Part 39, particularly within the Schedule of Airworthiness Directives, contain specific provisions concerning the maintenance and safety of certain aircraft models. In this context, AD/G1159/23 Amendment 2 (Section 11/80) pertains to the Gulfstream (Grumman) G1159 and G-IV Series aeroplanes. This amendment mandates that all models equipped with actuators as specified in Grumman Customer Bulletin No. 286A, Amendment 1, undergo an inspection of the main landing gear side brace actuating cylinders (Section 11/80). Compliance with this directive requires following the detailed requirements outlined in the aforementioned customer bulletin. The obligations imposed by this directive are clear and direct. Aircraft operators and maintenance personnel must ensure that the inspection of the main landing gear side brace actuating cylinders is conducted in accordance with the specifications provided in Grumman Customer Bulletin No. 286A, Amendment 1. This includes adherence to the prescribed overhaul periods and any additional inspection criteria that may be stipulated in the bulletin. Failure to comply with these obligations can lead to significant safety risks, as the directive is issued to address potential issues that could compromise the airworthiness of the aircraft. Failure to comply with the requirements of AD/G1159/23 Amendment 2 could result in various civil and potentially criminal consequences. The Civil Aviation Safety Authority (CASA) has the authority to enforce these regulations, and non-compliance may lead to enforcement actions. The potential penalties can include fines and, in severe cases, the grounding of the aircraft until the required inspections and repairs are completed. The exact penalties are determined based on the severity and frequency of the breach, but they are designed to ensure that all aircraft meet the necessary safety standards to protect passengers and crew.