AD/G159/45 - MLG Uplock Beam Forward Brackets

Overview

The Civil Aviation Orders, enacted by the Commonwealth of Australia and administered by the Civil Aviation Safety Authority, were introduced to address the need for standardised regulations governing the safety of civil aviation operations within Australia. Specifically, Part 105 of these Orders pertains to the schedule of airworthiness directives, which are mandatory instructions issued to ensure the safe operation of aircraft. This legislative instrument, F2006B10089, focuses on the Gulfstream (Grumman) G.159 series aeroplanes, providing directives to maintain the airworthiness of these aircraft. The policy objective of these Orders is to ensure the highest safety standards in civil aviation, aligning with international benchmarks and mitigating risks associated with aircraft operation. The authority to issue such directives rests with the Civil Aviation Safety Authority, ensuring compliance with safety regulations and the efficient operation of civil aviation within Australia.

Scope and Application

The Civil Aviation Orders, specifically Part 105 Schedule of Airworthiness Directives, issued by the Civil Aviation Safety Authority, apply to the Gulfstream (Grumman) G.159 series aeroplanes. This legislative instrument mandates compliance for aeroplanes with certain serial numbers: 1 to 12, 14 to 83, and 114. The requirement under AD/G159/45 mandates the replacement of the Main Landing Gear (MLG) uplock beam brackets part numbers 159W10150-51 and -52 with the brackets part numbers 159W10150-71 and -72. Compliance with this directive is necessary before the issue of an Australian Certificate of Airworthiness, unless the replacement has already been performed. The directive references FAA AD 97-14-08 and is applicable within the Commonwealth of Australia, covering federal airspace and aviation activities. There are no stated exclusions, exemptions, or thresholds in the directive itself, although further specifics may be found in subordinate instruments or related regulatory frameworks.

Key Provisions

The Civil Aviation Orders, under Part 105, specifically address the airworthiness directives for various aircraft types, including the Gulfstream (Grumman) G.159 series aeroplanes. One such directive, AD/G159/45, pertains to the Main Landing Gear (MLG) Uplock Beam Forward Brackets. This directive applies to aeroplanes within the Gulfstream G.159 series, specifically those with serial numbers 1 to 12, 14 to 83, and 114 (Section 1). It mandates that the MLG uplock beam brackets, currently identified as part numbers 159W10150-51 and -52, must be replaced with new brackets bearing part numbers 159W10150-71 and -72 (Section 2). This directive references FAA AD 97-14-08, indicating alignment with similar safety actions taken by the Federal Aviation Administration (Section 3). The obligations imposed by this directive are clear and straightforward. Operators of the specified Gulfstream G.159 series aeroplanes must ensure that the required modifications to the MLG uplock beam brackets are completed before the aeroplane is issued an Australian Certificate of Airworthiness. This requirement must be met unless the modification has already been accomplished (Section 4). The directive underscores the importance of maintaining the airworthiness of these aircraft by ensuring that the specified components meet the latest safety standards. Failure to comply with the provisions of this directive can lead to significant legal consequences. Operators who do not adhere to the directive risk facing penalties, which could include fines or other regulatory actions. While the specific maximum penalties are not detailed in the directive, the overarching legal framework of the Civil Aviation Orders suggests that non-compliance could lead to serious ramifications for the operators and potentially for the safety of the flight operations (Section 5). The directive serves as a crucial safety measure to prevent potential failures or malfunctions related to the MLG uplock beam brackets, thereby ensuring the continued safety and reliability of the Gulfstream G.159 series aeroplanes.