AD/G159/20 - Water Methanol Tank - Inspection

Overview

The Civil Aviation Orders, enacted in 1998, are a comprehensive set of regulations governing the safe operation of aircraft in Australia. The Civil Aviation Safety Authority (CASA) administers these orders, which were established to ensure the safety of aviation operations and to provide a cohesive and effective regulatory framework for the industry. A specific aspect of these orders is addressed in the Gulfstream (Grumman) G.159 Series Aeroplanes AD/G159/20, which was introduced to tackle an identified safety concern regarding the water methanol tank. This Airworthiness Directive was aimed at ensuring that all relevant aircraft models undergo a mandatory inspection within 100 hours of time in service after 30 April 1973, as outlined in Grumman Customer Bulletin No. 232. The policy objective behind these directives is to maintain the highest safety standards in Australian aviation, thereby protecting passengers, crew, and the general public from potential hazards.

Scope and Application

The Civil Aviation Orders, specifically the Part 105 Schedule of Airworthiness Directives, apply to the Gulfstream (Grumman) G.159 series aeroplanes as detailed in AD/G159/20, which mandates a critical inspection of the water methanol tank. This directive applies to all models of the Gulfstream G.159 aeroplanes and must be complied with within 100 hours of time in service following the date of the directive, which is 30 April 1973. The legislation is overseen by the Civil Aviation Safety Authority, which is the governing body responsible for enforcing these safety directives. The geographic and jurisdictional reach of these Orders is national, extending throughout the Commonwealth of Australia, thereby ensuring a uniform standard of airworthiness across the country. There are no stated exclusions or exemptions in this specific directive, and compliance is mandatory for all operators of the Gulfstream G.159 series aeroplanes within the prescribed timeframe. The application of the directive may be further extended or clarified through subordinate instruments issued by the Civil Aviation Safety Authority.

Key Provisions

The main operative sections of the Civil Aviation Orders, specifically AD/G159/20, pertain to the mandatory inspection of water methanol tanks for Gulfstream (Grumman) G.159 series aeroplanes (section 4/73). This directive applies to all models of the Gulfstream G.159 series, and compliance must be achieved within 100 hours of time in service following 30 April 1973. The directive references Grumman Customer Bulletin No. 232 as the document containing the detailed procedures and specifications for the inspection. The obligations and requirements imposed by this legislation are clear and precise. Operators of Gulfstream (Grumman) G.159 series aeroplanes must ensure that the water methanol tank is inspected according to the guidelines outlined in Grumman Customer Bulletin No. 232. This inspection must be completed within the specified timeframe of 100 hours after the designated date, ensuring the safety and airworthiness of the aircraft. Failure to adhere to this directive could result in non-compliance with civil aviation safety standards, potentially affecting the aircraft's certification and operational status. Failure to comply with the provisions of AD/G159/20 can lead to significant consequences. The Civil Aviation Safety Authority (CASA) may take enforcement actions against operators who do not adhere to the inspection requirements. The potential penalties for non-compliance can include fines, operational restrictions, and in severe cases, the grounding of the affected aircraft until the required inspections are completed. The exact penalties are determined by CASA based on the severity and impact of the non-compliance, but they can be substantial, reflecting the importance of maintaining the safety and airworthiness of aircraft as mandated by the Civil Aviation Orders.